R and the forest vegetation simulator

Feb 13, 20131 like2,896 views

The document discusses interfacing the Forest Vegetation Simulator (FVS), a model for forest growth and mortality developed by the US Forest Service, with the statistical programming language R. The author's goal was to use FVS for "Monte Carlo style" stochastic simulations of fire and drought events from within R. This was made possible by the Open-FVS project, which provides an application programming interface linking FVS to R. The author describes using the linked R and FVS system to batch modify FVS input files, add stochastic fire and drought events, and run parallel simulations from R.

Education

Most read

R and the Forest Vegetation Simulator
Interfacing an old school model with R
MASON EARLES
D-RUG 02.13.13

What’s the forest vegetation simulator (FVS)?
What did I want to do with it?
Where does R fit in?

What’s FVS?
Models forest growth, mortality and fire

What’s FVS?

- Developed and commonly
used by US Forest Service

- FORTRAN language

- Empirically based
growth/mortality

- Individual trees modeled

- Tree interactions affect growth
and mortality

My goal: Use FVS ‘Monte Carlo style’ with
stochastic fire and drought events

Problem: I don’t know the FORTRAN language;
FVS is a mess of code maintained by a couple of
people

Open-FVS = publicly available source
code…API linking FVS to R

A few things I’ve done with linked R + FVS

Batch modify keyword code files w/ R
Keyword file 

Stochastic fire events
Burn probability = 40 years

Stochastic drought events
Similar approach for drought events

The document discusses the impact of climate change on vegetable crops in Bihar, highlighting temperature increases, greenhouse gas emissions, and the vulnerability of certain regions and crops. It emphasizes the need for adaptation strategies to mitigate negative effects on food security and agricultural practices, including sustainable methods and the development of climate-resilient varieties. Overall, it asserts that while some regions may see yield potential increases, agricultural challenges due to climate change will particularly affect tropical and subtropical areas.

Provincial and local forest policy reviewAnandJha108

��

This document provides an overview and outline of a term paper on provincial and local forest policy in Nepal. It introduces federalism and how forest ownership and management is structured in Nepal under its federal system. It then outlines some key acts, policies, and plans related to forests and the environment in Nepal. It discusses the provincial and local forest policy structure, including the roles and responsibilities of different levels of government. It also notes some provisions, opportunities, and areas of duplication or contradiction between policies.

Lodging and Drought Resistant TefFrancois Stepman

��

The document outlines the goals and strategies related to the improvement of tef, a staple food crop in Ethiopia, focusing on enhancing its yield and reducing the impact of lodging and drought. It discusses the challenges faced by the crop due to environmental stresses, population growth, and climate change, while emphasizing the importance of genomic research and mutation breeding in developing better tef varieties. The project aims to exploit the genetic diversity of tef, facilitate variety development, and engage all stakeholders in the value chain from research to consumption.

Close-to-Nature continuous cover forestry Dr Jurij Diaci, SloveniaPro Silva Ireland

��

This document discusses close-to-nature forestry (CTN) and how it links ecological, economic, and social values. It outlines the origins of CTN stemming from degraded landscapes and efforts at more natural reforestation. CTN operates using irregular shelterwood systems and gap dynamics to encourage natural regeneration and uneven-aged stands. Economically, CTN requires less management and yields higher quality timber. Socially, CTN provides benefits for urban and recreation forests by maintaining more natural forest structures. In conclusion, CTN has developed from addressing environmental crises and adapting silviculture to natural forest conditions and disturbance patterns.

Forest management planJaved Iqbal Khan Khattak

��

This document outlines Javed Iqbal's proposed revisions to the format of forest management plans (working plans) in Pakistan. It discusses the shortcomings of the traditional two-part format, which lacks justification for objectives and alternatives. The proposed new format has three parts: Part I describes the forest area and existing conditions. Part II evaluates alternative objectives, species, silvicultural systems, and other choices. Part III prescribes the management plan, including working circles, programs, protection, utilization, infrastructure, administration, records, and finances.

Session 2.2 homegarden agroforestry for sustainability in sri lankaWorld Agroforestry (ICRAF)

��

This document discusses homegarden agroforestry in Sri Lanka and its importance for socio-economic, ecological, and environmental sustainability. It finds that homegardens cover around 14% of Sri Lanka's land area and contain a high diversity of plant species, including over 2300 endemic species. Homegardens are a major source of fruit production, genetic diversity for fruit trees, and carbon sequestration. They also provide food and nutritional security for farmers while sustainably managing landscapes and environmental services. However, homegardens are facing issues like fragmentation and a lack of domestication of high-value tree species that could be addressed through innovative management strategies and a multidisciplinary policy approach.

Climate change: Impact and its mitigation strategies in vegetable cropsNeha Verma

��

The document examines the impacts and mitigation strategies of climate change on vegetable cultivation, specifically addressing temperature increases, water scarcity, and other stress factors affecting crop yields in India and Punjab. It highlights the detrimental effects of heat stress, low temperatures, and elevated CO2 levels on various vegetable crops while also discussing potential agricultural adaptations and government initiatives to combat these challenges. The document concludes with recommendations for developing climate resilience through the selection of stress-resistant germplasm.

Fire as a management tools in protected area of nepalgagan sharma

��

This document summarizes a presentation on the use of fire as a management tool in protected areas of Nepal. It discusses how fire is a natural disturbance that can both improve ecosystems and pose threats. While wildfires often cause environmental degradation, prescribed fire under controlled conditions can be used strategically for purposes like hazardous fuel reduction, plant community restoration, improving wildlife habitat and access, controlling insects and disease, and managing competing vegetation. The document reviews these various uses of prescribed fire and provides examples from protected areas in Nepal. It concludes that policies focused solely on fire suppression must consider how fire also plays an important ecological role, and that fire management training could help reduce wildfire risks while enhancing protected area management.

The role of Indigenous way of natural resource conservationYoseph Maru

��

The document discusses the vital role of indigenous knowledge and belief systems in the conservation of natural resources in Africa, emphasizing their historical practices in biodiversity management and ecosystem preservation. It highlights the challenges faced due to modern influences, such as cultural infiltration and religious conflicts, which threaten these traditional practices. The conclusion urges collaboration between local communities and stakeholders to protect and promote indigenous conservation methods and to document traditional knowledge for future generations.

Role of forestry in restoration of degraded lands Indukale

��

This document outlines a seminar presentation on the role of forestry in restoring degraded land. It discusses various causes and types of land degradation in India such as water and wind erosion. Forestry plays a key role in restoration through forest interventions, afforestation techniques, and agroforestry models. These restore degraded land by improving biomass, soil fertility, and flora. The document provides examples of restoration approaches for mined areas, ravines, lateritic lands, and salt-affected soils through planting suitable tree and grass species.

Marker assisted backcross breedingAnilkumar C

��

This document discusses marker-assisted backcrossing (MAB) for introgressing traits from a donor parent into a recipient line. MAB uses DNA markers linked to target genes/QTLs to aid in selection. Markers can be used for foreground selection of target genes, background selection to recover the recipient genome, and recombinant selection to minimize linkage drag. A case study is described where MAB was used over multiple generations to introgress 5 drought resistance QTLs from a donor rice variety into a recipient variety. Through foreground, background, and recombinant selection using DNA markers, lines were developed with the target QTLs and most of the recipient genetic background.

Ethiopia: Policy, Actors and Achievements ICARDA

��

The document summarizes key policies and measures taken by Ethiopia to ensure food security in dry land areas. It discusses Ethiopia's agricultural sector and policies focusing on agriculture for poverty reduction. The key interventions to ensure food security in dry lands include strengthening agricultural research, extension services, natural resource and water management/irrigation, commercialization and markets, and direct food security programs. Major policies and strategies implemented include the Food Security Strategy, Growth and Transformation Plan, and Strategic Investment Framework for Sustainable Land Management.

ICIPE's Push-pull technologyFARA - Forum for Agricultural Research in Africa

��

The document discusses the push-pull technology used for sustainable agricultural intensification in Africa, specifically targeting pests like stemborers and parasitic witchweeds that significantly hinder crop production. This innovative pest management strategy involves intercropping repellent and trap plants to improve crop yields, enhance soil health, and reduce agricultural losses. The adoption of this technology is presented as a means to increase resilience among smallholder farmers while promoting ecological and economic benefits.

History of Forest Management in NepalAnilKoirala

��

This document provides a brief history of forest management in Nepal categorized into 6 phases from before 1926 AD to the present. It discusses the transition from exploitation and state control in early phases to more participatory and conservation-focused approaches today. Key events include nationalizing forests in 1957, establishing the community forestry program in 1978, and developing the Forest Policy 2000 and Scientific Forest Management Guideline 2014 to promote community-based and sustainable practices. The history shows evolving strategies to balance forest resource use and protection through policies and local involvement.

Innovation for Sustainable Food and AgricultureFAO

��

The document discusses the challenges and opportunities facing food and agricultural systems, highlighting the need for sustainable practices amidst issues like climate change, resource degradation, and social inequities. It outlines a comprehensive approach to sustainable food and agriculture, emphasizing agricultural innovation systems, strategies for investment, and effective governance. Examples of innovative production systems in various regions, including climate-smart agriculture and agroecology, are provided to illustrate potential pathways for resilience and improved food security.

Marker-assisted Selection (MAS) in fruit cropsMANDEEP KAUR

��

This document discusses the use of molecular markers in fruit crop breeding. It begins by explaining how molecular markers like RFLPs, AFLPs, RAPDs, ISSRs, SSRs, and SNPs can be used in marker-assisted selection to improve the efficiency of breeding programs through early trait assessment, selection of complex traits, and distinguishing hybrids from parental lines. It then provides examples of studies using ISSR and SSR markers in citrus and peach breeding. The document concludes by summarizing achievements in various fruit crops using different molecular marker techniques and outlining ongoing research projects at PAU utilizing biotechnology approaches like marker-assisted breeding.

Selection system: Biplots and Mapping genotyoeAlex Harley

��

The document discusses using biplots and genotype mapping to analyze multi-environment trials. It describes biplots, how they are constructed using methods like AMMI analysis of variance and principal component analysis. Biplots can show the relationship between genotypes and environments, and identify stable genotypes. The document also discusses genotype by genotype environment (GGE) biplots and their use in identifying mega-environments and ranking genotypes. It provides an example study using these methods to analyze rice hybrids in different locations and identify high yielding stable varieties.

Plant Genetic Resources for Food and Agriculture: A Commons PerspectiveCIAT

��

1) Plant genetic resources for food and agriculture (PGRFA) play a pivotal role in global food security as the basis for crop breeding and improvement programs. 2) Several international agreements and efforts aim to optimize the benefits from PGRFA by promoting conservation, sustainable use, and equitable sharing of benefits from use. 3) Key agreements and organizations include the International Treaty on Plant Genetic Resources for Food and Agriculture, the Global Plan of Action, and the Global Crop Diversity Trust, with the Food and Agriculture Organization of the UN playing a central coordinating role.

Carbon in ecosystemsCIFOR-ICRAF

��

The document discusses greenhouse gas emissions and mitigation strategies in relation to land use, land use change, and forestry (LULCF) from 1960 to 2010, highlighting trends in emissions and the significant role of agriculture and forestry in carbon sequestration. It emphasizes the potential for emissions reduction through improved agricultural productivity, enhanced government policies, and forest conservation practices. The paper also outlines the importance of maintaining carbon stock and ecosystem resilience to combat climate change.

Role of indigenous people in biodiversity conservationWISDOM WEALTH INTERNATIONAL SCHOOL, TAMILNADU

��

This document discusses the important role of indigenous people in biodiversity conservation through their traditional ecological knowledge and practices. It provides examples of different traditional systems used by various communities in India to classify and manage forests and vegetation in a sustainable way. These include religious, tribal, and livelihood traditions involving sacred forests, groves, and cultivated medicinal plants. The document also highlights specific indigenous communities in India like the Bhotiya, Meghalaya tribes, Badagas, and Todas and their traditional knowledge and conservation of forests and biodiversity.

Shelterwood system kishor aryalsahl_2fast

��

This document presents an overview of the shelterwood silvicultural system. It describes the shelterwood process which involves three cuts over 5-20 years: a preparatory cut, seed cut, and removal cut. Variations create more diverse forest structures, such as uniform, strip, group, and irregular shelterwood. Benefits include regeneration protection, soil protection, and aesthetic and economic advantages over clearcutting. Implementation challenges include damage during cuts and complex planning and growth prediction for irregular structures. The recommendation is for Nepal to establish scientific forest management policies and practices guided by practitioners and researchers.

Association mappingHina Chaudhary

��

This document provides an overview of association mapping as a tool for dissecting phenotypic variation and mapping quantitative trait loci (QTLs). It discusses the differences between traditional QTL mapping using biparental mapping populations versus association mapping using natural populations. Association mapping offers higher mapping resolution, uses more diverse germplasm, and is less time-consuming and costly than traditional QTL mapping. It then describes linkage disequilibrium-based association mapping and factors that influence linkage disequilibrium. The document also discusses different approaches to association mapping, including candidate gene association studies, genome-wide association studies, and localized association studies.

Prospect of Forest Management in NepalManoj Neupane

��

The document discusses the prospects of forest management in Nepal. It notes that forests cover 40.36% of Nepal's land area but production is only 18.5 million cubic feet per year, well below potential. Scientific forest management techniques including shelterwood and selection cutting have been applied in community and national forests in recent decades. Proper scientific forest management could sustainably increase annual production to 13 crore cubic feet, generating more revenue and jobs while improving forest health. However, challenges remain around stakeholder understanding, regulations, and ensuring benefits are shared. Overall, strengthening scientific management across Nepal could boost economic growth while sustainably managing forest resources.

assessment of poly genetic variations and path co-efficient analysisMahammed Faizan

��

The document presents an analysis of genetic divergence, focusing on variability in plant populations influenced by genetic constitution and environment, and methods of assessing this variability. Key methods discussed include simple measures of variability, variance component analysis, metroglyph analysis, and D2 statistics for evaluating genetic diversity. Additionally, the importance of path coefficient analysis for understanding causal relationships among traits is highlighted, underscoring both merits and demerits of each methodology.

Silvicultural characteristics of three terai species of nepal pratikshya pa...sahl_2fast

��

This document summarizes the silvicultural characteristics of three tree species found in the Terai region of Nepal: Shorea robusta (Sal), Dalbergia sissoo (Sissoo), and Acacia catechu (Khair). It describes the morphological features and growth habits of each species. The key silvicultural characteristics discussed are that all three species are light demanders and frost hardy. Sal is drought sensitive while Sissoo and Khair are drought resistant. The species are moderately fire resistant and coppice well. Seedlings are very sensitive to grazing and browsing.

Genome Editing in Fruit CropsMANDEEP KAUR

��

This document discusses genome editing in fruit crops using CRISPR/Cas9 technology. It provides examples of using CRISPR to edit genes involved in fruit ripening, pigmentation, and flowering time regulation in strawberry, banana, apple, and kiwifruit. Specifically, it describes using CRISPR to increase beta-carotene levels in banana, induce early flowering in apple and pear, and generate dwarf kiwifruit plants. The document concludes that integrating biotechnology like CRISPR with conventional breeding is a promising strategy for fruit crop improvement.

Plantation in Nepal & tropicsDeepak Gautam Tutunga

��

This document discusses plantation forests, specifically teak plantations. It provides background on silviculture and plantation forestry. Plantation forests are important for supplementing natural resources, replacing natural regeneration, and reforesting degraded lands. The history of plantations is discussed, including early examples in various countries in Asia and Africa. Major plantation programs in Nepal are also outlined. The document concludes with data on the extent of plantations by country in tropical regions up through 2000.

Presentation the impact of forest fire on forest cover types 03-march2017GeoMedeelel

��

This study analyzed the impact of forest fires on forest cover types in Eruu county, Mongolia between 2000 and 2011 using Landsat imagery. The forest was classified into seven types including cedar, pine, larch, birch, birch-pine mixed, birch-larch mixed and cedar-larch mixed. Overall accuracy of the forest maps was 86.33% in 2000 and 93.75% in 2011. Large fires between 2007-2009 impacted over 25,000 hectares, changing forests to burnt areas and over 52,000 hectares to grasslands. Major changes included reductions in cedar-larch mixed and increases in burnt areas.

An introduction to structural equation models in R using the Lavaan packageNoam Ross

��

This document provides an introduction to structural equation models (SEMs) using Lavaan. It includes links to basic SEM tutorials and outlines reasons to use SEMs, such as testing complex hypotheses involving direct and indirect interactions between multiple predictor and response variables. The document discusses sample size recommendations, including needing at least 5-20 samples per estimated parameter. It also describes specifying direct and indirect pathways between latent and observed variables in SEM models and interpreting SEM output, including using modification indices to identify potential missing links when model fit is poor.

Spatial Analysis with R - the Good, the Bad, and the PrettyNoam Ross

��

This document discusses using R for spatial data analysis. It notes that spatial data has unique characteristics like geometry and attributes, map projections, and large multivariate and time series datasets. It compares GIS and R, noting that R allows for more flexible analysis, attributes as important, creativity, repeatability, and speed of development. It covers representing spatial data in R using classes like SpatialPointsDataFrame and reading/writing spatial data. It also summarizes types of spatial analysis and statistics that can be performed in R including queries, transformations, exploration, optimization, inference, modeling, point pattern analysis, geostatistics, and inference. Finally, it provides examples of performing spatial analysis and visualization in R.

More Related Content

What's hot (20)

The role of Indigenous way of natural resource conservationYoseph Maru

��

Role of forestry in restoration of degraded lands Indukale

��

Marker assisted backcross breedingAnilkumar C

��

Ethiopia: Policy, Actors and Achievements ICARDA

��

ICIPE's Push-pull technologyFARA - Forum for Agricultural Research in Africa

��

History of Forest Management in NepalAnilKoirala

��

Innovation for Sustainable Food and AgricultureFAO

��

Marker-assisted Selection (MAS) in fruit cropsMANDEEP KAUR

��

Selection system: Biplots and Mapping genotyoeAlex Harley

��

Plant Genetic Resources for Food and Agriculture: A Commons PerspectiveCIAT

��

Carbon in ecosystemsCIFOR-ICRAF

��

Role of indigenous people in biodiversity conservationWISDOM WEALTH INTERNATIONAL SCHOOL, TAMILNADU

��

Shelterwood system kishor aryalsahl_2fast

��

Association mappingHina Chaudhary

��

Prospect of Forest Management in NepalManoj Neupane

��

assessment of poly genetic variations and path co-efficient analysisMahammed Faizan

��

Silvicultural characteristics of three terai species of nepal pratikshya pa...sahl_2fast

��

Genome Editing in Fruit CropsMANDEEP KAUR

��

Plantation in Nepal & tropicsDeepak Gautam Tutunga

��

Presentation the impact of forest fire on forest cover types 03-march2017GeoMedeelel

��

The role of Indigenous way of natural resource conservationYoseph Maru

��

Role of forestry in restoration of degraded lands Indukale

��

Marker assisted backcross breedingAnilkumar C

��

Ethiopia: Policy, Actors and Achievements ICARDA

��

ICIPE's Push-pull technologyFARA - Forum for Agricultural Research in Africa

��

History of Forest Management in NepalAnilKoirala

��

Innovation for Sustainable Food and AgricultureFAO

��

Marker-assisted Selection (MAS) in fruit cropsMANDEEP KAUR

��

Selection system: Biplots and Mapping genotyoeAlex Harley

��

Plant Genetic Resources for Food and Agriculture: A Commons PerspectiveCIAT

��

Carbon in ecosystemsCIFOR-ICRAF

��

Role of indigenous people in biodiversity conservationWISDOM WEALTH INTERNATIONAL SCHOOL, TAMILNADU

��

Shelterwood system kishor aryalsahl_2fast

��

Association mappingHina Chaudhary

��

Prospect of Forest Management in NepalManoj Neupane

��

assessment of poly genetic variations and path co-efficient analysisMahammed Faizan

��

Silvicultural characteristics of three terai species of nepal pratikshya pa...sahl_2fast

��

Genome Editing in Fruit CropsMANDEEP KAUR

��

Plantation in Nepal & tropicsDeepak Gautam Tutunga

��

Presentation the impact of forest fire on forest cover types 03-march2017GeoMedeelel

��

More from Noam Ross (13)

An introduction to structural equation models in R using the Lavaan packageNoam Ross

��

Spatial Analysis with R - the Good, the Bad, and the PrettyNoam Ross

��

Intro to plyr for Davis R Users' Group, by Steve CulmanNoam Ross

��

The split-apply-combine strategy breaks data into pieces, applies a function to each piece, and combines the results. The plyr package provides functions like ddply and alply that follow this strategy. It offers an alternative to base R apply functions and a simplified way to write for loops. Plyr functions use the format **ply, where the first * indicates input type (like d for data frame) and second * indicates output type (like d or l).

Andersen et al. 2004: Stoichiometry and DynamicsNoam Ross

��

1) The document discusses how stoichiometry (the balance of nutrients) influences population dynamics between autotrophs (plants) and herbivores. It presents a model linking food quality to growth constraints. 2) Experiments using a chemostat (continuous culture device) show how varying the phosphorus-to-carbon ratio in autotrophs affects their growth and the facilitation of herbivores over time. 3) Stoichiometry is then incorporated into traditional Lotka-Volterra predator-prey models by making growth rates and functional responses dependent on nutrient ratios and energetic constraints. Stability depends on the nutrient level and dilution rate.

General Additive Models in RNoam Ross

��

GAMs (Generalized Additive Models) allow for nonlinear relationships between predictor and response variables using splines. Splines break data into sections with different formulas to better model threshold effects and complex relationships. The mgcv package in R is used to fit GAMs and includes functions for building, summarizing, checking, and comparing GAMs. Key decisions in GAM modeling include which variables to include, which to model nonlinearly using what type of splines, and the number of knots.

Agren 2012 - by Brian SmithersNoam Ross

��

1. The document discusses modeling the interaction between nitrogen and phosphorus limitation on plant growth. It challenges the established view of Liebig's Law of the Minimum which states that plant growth is limited by a single nutrient. 2. The document proposes the Multiple Limitation Hypothesis which argues that plant growth is simultaneously co-limited by several resources through flexible allocation between nitrogen and phosphorus uptake. 3. Flexible allocation allows plants to direct more resources to acquiring the limiting nutrient, increasing growth rates when both nitrogen and phosphorus availability is increased compared to increasing them individually.

Stoichiometry of the Microbial Loop: J. Matthew HaggertyNoam Ross

��

The document discusses stoichiometry and nutrient limitation patterns in the microbial loop and world's oceans. It first provides context on the microbial loop and how diversity complicates its stoichiometry. It then summarizes key findings from three studies: 1) A study finds Trichodesmium, a primary nitrogen fixer, demonstrates extreme flexibility in its C:N:P ratios in response to nutrient conditions, with ratios up to 6 times higher than Redfield predictions. 2) Analysis of nutrient limitation patterns globally finds diatoms can be limited by iron or silicon, small phytoplankton by nitrogen, phosphorus, or iron, and diazotrophs by phosphorus, iron, or light.

Ecological Stoichiometry: The Consumer Connection: Matt WhalenNoam Ross

��

The document discusses how ecological stoichiometry can provide insights into consumption in food webs. It summarizes several studies that show: 1) Consumer growth rates respond unimodally to phosphorus levels in their diet, with low-phosphorus diets limiting growth. 2) Generalist herbivores may consume more low-quality, low-phosphorus foods to meet their stoichiometric needs rather than switching to more nutritious options. 3) Both generalists and specialists can balance their diets by modifying intake of different quality foods to reach their fitness and compositional targets.

Stoichiometry of the Microbial Loop: J. Matthew HaggertyNoam Ross

��

The document discusses stoichiometry and nutrient limitation patterns in the microbial loop and world's oceans. It first provides context on the microbial loop and how diversity complicates its stoichiometry. It then summarizes key findings from three studies: 1) A study predicting regions of the ocean limited by nitrogen, phosphorus, iron and light using an ecosystem model. It reproduced high nutrient, low chlorophyll conditions and realistic production patterns. 2) A study using a biogeochemical model to analyze iron cycling and nutrient limitation patterns globally. It found high sensitivity to iron and identified regions limited by nitrogen, phosphorus, iron or light. 3) A study of Trichodesmium spp. that found

Marklein CNP stoichiometryNoam Ross

��

Ecological stoichiometry examines the balance of elements like carbon, nitrogen, and phosphorus in ecological interactions and processes. A key study found that removing planktivorous fish from an eutrophic lake and allowing zooplankton populations like Daphnia to increase altered nutrient cycling. This increased the relative availability of nitrogen over phosphorus, countering the original low nitrogen to phosphorus input ratio and decreasing cyanobacteria dominance. The results supported theories linking nutrient ratios, growth rates, and food web structure based on organisms' nucleic acid and ribosomal RNA composition.

Modifying River-Floodplain Systems: A Historical and Ecological PerspectiveNoam Ross

��

The document discusses the historical and ecological impacts of river-floodplain modifications, focusing on the Napa River flood protection project, which was initiated in 1998 to address flood risks while incorporating environmental objectives. It utilizes both historical and ecological methodologies to analyze changes over time, particularly in relation to habitat preservation for species like the Sacramento splittail and Fremont cottonwood. Additionally, the document explores social consequences of flood control and suggests new ecological approaches for future projects that emphasize ecosystem functions and equitable benefit distribution.

Emerging Forest DiseaseNoam Ross

��

The document discusses the bioeconomics of forest diseases, focusing on challenges such as the spread of sudden oak death and the management of emerging threats to forest ecosystems. It highlights the complexity of disease dynamics and the necessity for effective control methods, including chemical treatments and quarantine measures. The author, Noam Ross, aims to quantify the trade-offs involved in different management strategies and the impact of various factors on disease outbreaks.

Baskett Lab Uncertainty lab meetingNoam Ross

��

This document discusses the challenges of communicating scientific uncertainty to non-expert audiences. It notes that people vastly underestimate their own uncertainty and that perceptions of uncertainty are culturally mediated. Additionally, scientific literacy and numeracy varies widely among the general public. The document advocates for empirically testing risk communication messages with audiences and presenting probabilities and uncertainties in multiple consistent ways using words, numbers, and graphics. It also cautions that for some issues with high uncertainty, simpler approaches than probabilistic analysis may be better suited.

An introduction to structural equation models in R using the Lavaan packageNoam Ross

��

Spatial Analysis with R - the Good, the Bad, and the PrettyNoam Ross

��

Intro to plyr for Davis R Users' Group, by Steve CulmanNoam Ross

��

Andersen et al. 2004: Stoichiometry and DynamicsNoam Ross

��

General Additive Models in RNoam Ross

��

Agren 2012 - by Brian SmithersNoam Ross

��

Stoichiometry of the Microbial Loop: J. Matthew HaggertyNoam Ross

��

Ecological Stoichiometry: The Consumer Connection: Matt WhalenNoam Ross

��

Stoichiometry of the Microbial Loop: J. Matthew HaggertyNoam Ross

��

Marklein CNP stoichiometryNoam Ross

��

Modifying River-Floodplain Systems: A Historical and Ecological PerspectiveNoam Ross

��

Emerging Forest DiseaseNoam Ross

��

Baskett Lab Uncertainty lab meetingNoam Ross

��

Recently uploaded (20)

Vitamin and Nutritional Deficiencies.pptxVishal Chanalia

��

Vitamin and nutritional deficiency occurs when the body does not receive enough essential nutrients, such as vitamins and minerals, needed for proper functioning. This can lead to various health problems, including weakened immunity, stunted growth, fatigue, poor wound healing, cognitive issues, and increased susceptibility to infections and diseases. Long-term deficiencies can cause serious and sometimes irreversible health complications.

GREAT QUIZ EXCHANGE 2025 - GENERAL QUIZ.pptxRonisha Das

��

Romanticism in Love and Sacrifice An Analysis of Oscar Wilde’s The Nightingal...KaryanaTantri21

��

The story revolves around a college student who despairs not having a red rose as a condition for dancing with the girl he loves. The nightingale hears his complaint and offers to create the red rose at the cost of his life. He sang a love song all night with his chest stuck to the thorns of the rose tree. Finally, the red rose grew, but his sacrifice was in vain. The girl rejected the flower because it didn’t match her outfit and preferred a jewellery gift. The student threw the flower on the street and returned to studying philosophy

June 2025 Progress Update With Board Call_In process.pptxInternational Society of Service Innovation Professionals

��

--- June 25 ISSIP Event - slides in process 20250618 PPre-Event Presentation Summary - Progress Update with Board Series June 25 ISSIP Website Upcoming Events Description: https://issip.org/event/semi-annual-issip-progress-call/ Register here (even if you cannot attend live online, all who register will get link to recording and slides post-event): https://docs.google.com/forms/d/e/1FAIpQLSdThrop1rafOCo4PQkYiS2XApclJuMjYONEHRMGBsceRdcQqg/viewform This pre-event presentation: /slideshow/june-2025-progress-update-with-board-call_in-process-pptx/280718770 This pre-event recording: https://youtu.be/Shjgd5o488o ---

English 3 Quarter 1_LEwithLAS_Week 1.pdfDeAsisAlyanajaneH

��

Chalukyas of Gujrat, Solanki Dynasty NEP.pptxDr. Ravi Shankar Arya Mahila P. G. College, Banaras Hindu University, Varanasi, India.

��

This presentation has been made keeping in mind the students of undergraduate and postgraduate level. In this slide try to present the brief history of Chaulukyas of Gujrat up to Kumarpala To keep the facts in a natural form and to display the material in more detail, the help of various books, websites and online medium has been taken. Whatever medium the material or facts have been taken from, an attempt has been made by the presenter to give their reference at the end. Chaulukya or Solanki was one of the Rajputs born from Agnikul. In the Vadnagar inscription, the origin of this dynasty is told from Brahma's Chauluk or Kamandalu. They ruled in Gujarat from the latter half of the tenth century to the beginning of the thirteenth century. Their capital was in Anahilwad. It is not certain whether it had any relation with the Chalukya dynasty of the south or not. It is worth mentioning that the name of the dynasty of the south was 'Chaluky' while the dynasty of Gujarat has been called 'Chaulukya'. The rulers of this dynasty were the supporters and patrons of Jainism.

Peer Teaching Observations During School InternshipAjayaMohanty7

��

The Man In The Back – Exceptional Delaware.pdfdennisongomezk

��

ENGLISH_Q1_W1 PowerPoint grade 3 quarter 1 week 1jutaydeonne

��

THE PSYCHOANALYTIC OF THE BLACK CAT BY EDGAR ALLAN POE (1).pdfnabilahk908

��

Psychoanalytic Analysis of The Black Cat by Edgar Allan Poe explores the deep psychological dimensions of the narrator’s disturbed mind through the lens of Sigmund Freud’s psychoanalytic theory. According to Freud (1923), the human psyche is structured into three components: the Id, which contains primitive and unconscious desires; the Ego, which operates on the reality principle and mediates between the Id and the external world; and the Superego, which reflects internalized moral standards. In this story, Poe presents a narrator who experiences a psychological breakdown triggered by repressed guilt, aggression, and internal conflict. This analysis focuses not only on the gothic horror elements of the narrative but also on the narrator’s mental instability and emotional repression, demonstrating how the imbalance of these three psychic forces contributes to his downfall.

List View Components in Odoo 18 - Odoo �ݺ�ߣsCeline George

��

IIT KGP Quiz Week 2024 Sports Quiz (Prelims + Finals)IIT Kharagpur Quiz Club

��

LAZY SUNDAY QUIZ "A GENERAL QUIZ" JUNE 2025 SMC QUIZ CLUB, SILCHAR MEDICAL CO...Ultimatewinner0342

��

🧠 Lazy Sunday Quiz | General Knowledge Trivia by SMC Quiz Club – Silchar Medical College Presenting the Lazy Sunday Quiz, a fun and thought-provoking general knowledge quiz created by the SMC Quiz Club of Silchar Medical College & Hospital (SMCH). This quiz is designed for casual learners, quiz enthusiasts, and competitive teams looking for a diverse, engaging set of questions with clean visuals and smart clues. 🎯 What is the Lazy Sunday Quiz? The Lazy Sunday Quiz is a light-hearted yet intellectually rewarding quiz session held under the SMC Quiz Club banner. It’s a general quiz covering a mix of current affairs, pop culture, history, India, sports, medicine, science, and more. Whether you’re hosting a quiz event, preparing a session for students, or just looking for quality trivia to enjoy with friends, this PowerPoint deck is perfect for you. 📋 Quiz Format & Structure Total Questions: ~50 Types: MCQs, one-liners, image-based, visual connects, lateral thinking Rounds: Warm-up, Main Quiz, Visual Round, Connects (optional bonus) Design: Simple, clear slides with answer explanations included Tools Needed: Just a projector or screen – ready to use! 🧠 Who Is It For? College quiz clubs School or medical students Teachers or faculty for classroom engagement Event organizers needing quiz content Quizzers preparing for competitions Freelancers building quiz portfolios 💡 Why Use This Quiz? Ready-made, high-quality content Curated with lateral thinking and storytelling in mind Covers both academic and pop culture topics Designed by a quizzer with real event experience Usable in inter-college fests, informal quizzes, or Sunday brain workouts 📚 About the Creators This quiz has been created by Rana Mayank Pratap, an MBBS student and quizmaster at SMC Quiz Club, Silchar Medical College. The club aims to promote a culture of curiosity and smart thinking through weekly and monthly quiz events. 🔍 SEO Tags: quiz, general knowledge quiz, trivia quiz, �ݺ�ߣShare quiz, college quiz, fun quiz, medical college quiz, India quiz, pop culture quiz, visual quiz, MCQ quiz, connect quiz, science quiz, current affairs quiz, SMC Quiz Club, Silchar Medical College 📣 Reuse & Credit You’re free to use or adapt this quiz for your own events or sessions with credit to: SMC Quiz Club – Silchar Medical College & Hospital Curated by: Rana Mayank Pratap

Hurricane Helene Application Documents ChecklistsMebane Rash

��

How to Customize Quotation Layouts in Odoo 18Celine George

��

A Visual Introduction to the Prophet JeremiahSteve Thomason

��

F-BLOCK ELEMENTS POWER POINT PRESENTATIONSmprpgcwa2024

��

F-block elements are a group of elements in the periodic table that have partially filled f-orbitals. They are also known as inner transition elements. F-block elements are divided into two series: 1.Lanthanides (La- Lu) These elements are also known as rare earth elements. 2.Actinides (Ac- Lr): These elements are radioactive and have complex electronic configurations. F-block elements exhibit multiple oxidation states due to the availability of f-orbitals. 2. Many f-block compounds are colored due to f-f transitions. 3. F-block elements often exhibit paramagnetic or ferromagnetic behavior.4. Actinides are radioactive. F-block elements are used as catalysts in various industrial processes. Actinides are used in nuclear reactors and nuclear medicine. F-block elements are used in lasers and phosphors due to their luminescent properties. F-block elements have unique electronic and magnetic properties.

Intellectual Property Right (Jurisprudence).pptxVishal Chanalia

��

Q1_ENGLISH_PPT_WEEK 1 power point grade 3 Quarter 1 week 1jutaydeonne

��

LDMMIA Shop & Student News Summer Solstice 25LDM & Mia eStudios

��

6/18/25 Shop, Upcoming: Final Notes to Review as we Close Level One. Make sure to review the orientation and videos as well. There’s more to come and material to cover in Levels 2-3. The content will be a combination of Reiki and Yoga. Also energy topics of our spiritual collective. Thanks again all future Practitioner Level Students. Our Levels so far are: Guest, Grad, and Practitioner. We have had over 5k Spring Views. https://ldm-mia.creator-spring.com

Vitamin and Nutritional Deficiencies.pptxVishal Chanalia

��

GREAT QUIZ EXCHANGE 2025 - GENERAL QUIZ.pptxRonisha Das

��

Romanticism in Love and Sacrifice An Analysis of Oscar Wilde’s The Nightingal...KaryanaTantri21

��

June 2025 Progress Update With Board Call_In process.pptxInternational Society of Service Innovation Professionals

��

English 3 Quarter 1_LEwithLAS_Week 1.pdfDeAsisAlyanajaneH

��

Chalukyas of Gujrat, Solanki Dynasty NEP.pptxDr. Ravi Shankar Arya Mahila P. G. College, Banaras Hindu University, Varanasi, India.

��

Peer Teaching Observations During School InternshipAjayaMohanty7

��

The Man In The Back – Exceptional Delaware.pdfdennisongomezk

��

ENGLISH_Q1_W1 PowerPoint grade 3 quarter 1 week 1jutaydeonne

��

THE PSYCHOANALYTIC OF THE BLACK CAT BY EDGAR ALLAN POE (1).pdfnabilahk908

��

List View Components in Odoo 18 - Odoo �ݺ�ߣsCeline George

��

IIT KGP Quiz Week 2024 Sports Quiz (Prelims + Finals)IIT Kharagpur Quiz Club

��

LAZY SUNDAY QUIZ "A GENERAL QUIZ" JUNE 2025 SMC QUIZ CLUB, SILCHAR MEDICAL CO...Ultimatewinner0342

��

Hurricane Helene Application Documents ChecklistsMebane Rash

��

How to Customize Quotation Layouts in Odoo 18Celine George

��

A Visual Introduction to the Prophet JeremiahSteve Thomason

��

F-BLOCK ELEMENTS POWER POINT PRESENTATIONSmprpgcwa2024

��

Intellectual Property Right (Jurisprudence).pptxVishal Chanalia

��

Q1_ENGLISH_PPT_WEEK 1 power point grade 3 Quarter 1 week 1jutaydeonne

��

LDMMIA Shop & Student News Summer Solstice 25LDM & Mia eStudios

��

R and the forest vegetation simulator

1. R and the Forest Vegetation Simulator Interfacing an old school model with R MASON EARLES D-RUG 02.13.13

2. What’s the forest vegetation simulator (FVS)? What did I want to do with it? Where does R fit in?

3. What’s FVS? Models forest growth, mortality and fire

4. What’s FVS? - Developed and commonly used by US Forest Service - FORTRAN language - Empirically based growth/mortality - Individual trees modeled - Tree interactions affect growth and mortality

5. My goal: Use FVS ‘Monte Carlo style’ with stochastic fire and drought events Problem: I don’t know the FORTRAN language; FVS is a mess of code maintained by a couple of people

6. But I know R!

7. Open-FVS = publicly available source code…API linking FVS to R

8. FVS can now be run from R!

9. A few things I’ve done with linked R + FVS

10. Batch modify keyword code files w/ R Keyword file 

11. Stochastic fire events Burn probability = 40 years

12. %dopar% for parallel simulations

13. Stochastic drought events Similar approach for drought events

14. Simulation Examples: #runs = 100