The document discusses butterflies and monarch butterflies. It includes sections on different types of butterflies found in Central Oregon, the monarch butterfly life cycle including migration and overwintering, challenges faced by monarchs, and ways the public can help monarch butterflies such as by planting milkweed. Various authors and photographers contribute information and photos related to butterflies and monarch conservation.
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Editor's Notes
#3: Defining characteristics:
A small invertebrate (no spine) w 6 legs and generally 1-2 pairs of wings
Pexels.com
Note: a bug is a certain type of insect (all bugs are insects but not all insects are bugs!); all photos from Pexels website
#4: Antennae!!
Monarch and male emperor moth (these dont live here)
Male moths will often have really beautiful antennae w lots of branching almost like a fern. Better for sensing female pheromones
#5: Chrysalis butterfly cats shed their final skin/instar and this is what is underneath
Cocoon - moth cats weave materials around their bodies
#6: Moths are more than drab night fliers they can be beautiful daytime fliers like this elegant day moth at the Metolius Preserve!
#7: Antennae = smell!
Drab but not a moth! A mourning cloak butterfly!
#10: Built in sipping straw on this western sulphur
#11: Puddling swallowtails and checkerspot
( and SCAT!)
#12: Teeny tiny egg is laid on the butterflys host plant.
Host plant = particular type of plant that a spp of butterfly will lay its eggs on. Some butterflies will lay their eggs on one of several different types of plant. Others, like the monarch, will only lay their eggs on one kind. In this case, milkweed.
#13: How many different kinds of butterflies do we have in Central Oregon?
20?
50? .
#14: ~30 species of skippers in Oregon.
Note stout body shape and wing placement.
Silver spotted skipper, checkered skipper, woodland skipper?
#15: Western tiger swallowtail from pexel website
One of the most commonly observed butterflies in Cascadia
#16: Compare to Pale Swallotail which is almost white in contrast w the butter yellow of the Western
#17: Oregon Swallowtail = declared the official state insect in 1979
#18: We have Clodius and Mountain parnassians in Oregon Clodius in our area.
Transparent wings like waxed paper
#19: Male Saras orang tip on prairie star (females have a yellow-ish cast)
#20: Cabbage white often mistaken for a moth (but look at the antennae!); very common; often seen in gardens
#21: Western sulphur check out the pink antennae!!!
#22: LOTS of little blue butterflies the males look very similar on top vivid blue
But the undersides are all different.
This is what many of them look like on top. These are spring (echo) azures
#23: Spring (echo) azures puddling
Very blue on top, cool pattern underneath
Very common site for male blues
#28: Called brushfoots b/c of reduced size front legs covered in tiny hairs looks like they only have 4 legs, but they really have 6;
This one is a comma note whitish comma on hindwing
#30: Male, great spangled fritillary
Most frits look the same on top like on this smiling child
#31: Common wood nymph aka Google-Eyed wood nymph!
Explain reason for eye spots
#35: Note the difference btw male and female.
Some species = easy to tell the difference.
Many species = difficult/impossible w naked eye
#37: How do butterflies spend the winter? (these are different spp, btw)
#38: Monarchs Migrate!!
Changing daylight, changing temps, reduction of milkweed quality all triggers
Use a sun-compass in their brain and circadian clocks in antennae
Explain map:
Fall migration red arrows note all of ours go to CA (fly >40 miles/day, 1000+ miles)
Monarchs east of Rockies go to Mexico (fly >40 miles/day, up to 3000 miles!)
#39: Our western monarchs flock to the CA coast to overwinter congregations have been found at more than 400 sites along the coast from Mendocino County in the north to San Diego in the south.
They roost on pine, eucalyptus and other sturdy shrubs and trees.
Air is moist and cool enough to slow metabolisms but not cold enough to freeze them.
CA counties w majority of overwintering monarchs:
Alameda, Santa Cruz, Monterey, San Luis Obispo, Santa Barbara Counties
ASK ABOUT WEB PERMISSIONS
#40: Most of the eastern monarch population overwinters in the Central Mexico highlands in an area that is protected (World Heritage Site)
State of Michoacan, east of Mexico city
10,000 elevation; oyamel fir trees (only 2% of the original forest remains!!)
Air is thin and moist and cool and the butters live off their fat reserves (b/c its cool, their metabolism slows, and theyre able to live longer off their fat reserves)
ASK SM WEB PERMISSIONS
#42: 2-4 generations (~3 for us) (depending on how far north you live and what the winter/spring weather was like, etc) of monarchs play leapfrog as they move north from the California coast. These monarchs live 2-5 weeks (long enough to travel north, mate and lay eggs).
Super generation (typically emerges late summer/early fall) fly many hundreds, even over 1000 miles, and live 6-9 months!! In contrast, the eastern monarchs may fly up to 3000 miles!
How do they know theyre the supers? Changing day length, temp conditions, and declining milkweed quality
#43: Top 2 reasons for monarch decline:
1) Overwintering habitat loss (CA overwintering population is in severe decline. Down 74% since the late 1990s (from millions of individuals to a couple hundred thousand).
Note small blue areas vs large expanses of spring/summer.
2) Also breeding habitat loss need milkweed and nectar, shading/roosting areas
3)Migration routes need milkweed and nectar, roosting areas
#44: Parasites, Diseases and Predation
Tachinid Fly lays eggs on caterpillars, larvae emerges and burrows into caterpillar, caterpillar feeds larvae kills the caterpillar typically in final instar or chrysalis stage. Little maggot emerges
OE = Ophryocysits elektroscirrha protozoan parasite that caterpillars ingest on milkweed. Spread through microscopic spores coming off the wings and bodies of adult butterflies. The protozoa multiply inside the cats and cause weakness, disfigurment and ultimately death. Typically dont notice until chrysalis or butterfly emerges. One of the reasons to plant only native milkweed is b/c it dies back each year, controlling the spread of OE.
Many others!
#45: Class of pesticides extremely toxic to bees and other pollinators and a major factor in pollinator declines. The chemical, called a systemic, moves throughout the entire plant, making pollen and nectar in flowers toxic. Both systemic and persistent, neonics continue to affect bees and other pollinators long after a spray, through soil absorption
ASK WEB PERMISSIONS
#46: Climate change
Can effect plant emergence and bloom times
More severe storms can wipe out hundreds and even thousands of overwinter butterflies
Wetter winters, drier summers effects on the butterfly itself as well as food sources, migration timing, etc
#47: 2016 started planting milkweed at LT properties
#48: Still planting milkweed at LT properties and look! Theyre still excited about it!
#49: Showy milkweed as you can imagine is a fabulous nectar resource for MANY insects!
WEB PERMIS
#50: Narrowleaf milkweed
Also heartleaf milkweed native to Oregon but not as widely distributed and not here in CO
Mention cardenolides in milkweed, toxic compounds that are unpalatable to predators (of larger caterpillars and adult monarch butterflies); mention Viceroy?
WEB PERMIS
#51: Plant variety of pollinator-friendly native plants (THAT HAVE NOT BEEN TREATED w PESTICIDES/HERBICIDES!!!), with bloom times that span Spring - Fall
#52: Xerces Society = great resource for finding milkweed seed appropriate for where you live, milkweed mapping, monarch mapping, and MORE!
#53: SOMA and MACO, Monarch Butterflies in the Pacific Northwest
#54: Report tagged monarchs to David James at WSU; responsible rearing
#55: Volunteer for the Land Trust!
Planting work parties
Weeding work parties
Milkweed monitors
#56: If all else fails, dye your hair bright colors and enjoy the effects of attracting butterflies!
Elis hair won out over the giant sunflower!