Anurag Agrawal

Evolutionary ecologist studying species interactions, plant chemistry, community ecology, and comparative biology. Author of Monarchs & Milkweed and Prof. at Cornell University

Anurag Agrawal boosted:
Brian J. Enquistbjenquist
2023-02-09

Using the platform to automate measuring and testing - Our study suggests that plant is genetically variable and might be related to different adaptive strategies to cope with stressing conditions.

Anurag Agrawal boosted:
Professor Mark OsbornMicrobialLife@aus.social
2023-02-03

Estimates of global #biomass for different taxonomic groups are always valuable. This new one provides an estimate for #arthropods with a value of 200 million tons (dry weight) of arthropods in soil of which 40% is of #termites and 10% #ants.
Find out more in Science Advances on:

science.org/doi/10.1126/sciadv

Breakdown of proportions of total global biomass between major arthropod taxa - see article in post for details.
Anurag Agrawal boosted:
2023-02-02

"We've got eyes on you." Eyespots may mimic the eyes of their predators’ enemies, eg mimic dangerous snakes that might attack a hungry insect-eating bird. Birds, of course, mimic their predators- I’ve often been fooled into thinking I’m hearing a Crested Serpent Eagle when it’s actually a drongo having a bit of fun (or sounding the alarm).
This lot all hawk moths (Sphingidae)
see caterpillar-eyespots.blogspot.
#lepidoptera #caterpillars #moths #nature #biology

Daphnis nerii. Oleander Hawk-moth caterpillar- large fat body, yellowish green at the front green out of focus behind with white spots. At the front there are two piercing ice blue eyes ringed in black. The tip of the caterpillar is like a snoutcaterpillar of Eupanacra elegantulus, only   the head and a small amount of the body out focus are visible; head and body a light brown, the head with a network of dark brown lines. There are two black eyespots with a yellow ring underneath. It's on a dark green leafcaterpillar of Eupanacra mydon, large fat deep red body with a black line running down the middle and a white line on each side of it. It has two large black eyespots with many little white spots inside and a white ring round the basethe caterpillar of a hawk moth I haven't identified seen head on; the body is a brownish green with dark brown lines in front, little white spots on top of the head and two large red eyespots ringed with white. The background is black
2023-02-02
2023-02-02

Are folks aware of best practices for using iNaturalist data to try and estimate relative (not absolute) abundances of species? I'm wondering about how much people have thought about the various biases? I'm interested in looking at two species that are phenotypically similar, both with thousands of reports and overlapping ranges. Nonetheless, I'm interested in whether they have different range-centers and distributions. Is there precedence for this or is it too fraught? Thanks!

#iNaturlist

2023-01-27

@Je5usaurus_rex monarchs seem nearly panmictic worldwide... that isn't exactly true, but there is much less genetic differentiation than we expected: nature.com/articles/nature1381

2023-01-27

@lars_brudvig That looks like milkweed habitat

2023-01-27

@ryanhodnett The wild ancestor of endive

2023-01-27

@DGKontopoulos If there is really no information about the allegations from her or the university, it seems odd to be helping. I don't know what I would be supporting. If there is actual information, please post it

Anurag Agrawal boosted:
Dimitris KontopoulosDGKontopoulos@ecoevo.social
2023-01-27

"UCLA has suspended award-winning ecologist Priyanga Amarasekare without pay, apparently for speaking out against discrimination. Here are some ways you can help."

dynamicecology.wordpress.com/2

2023-01-22

@VVandvik thanks for sharing this. Many privately owned journals also give in to stronger conflicts of interest, thereby reducing quality, selectivity, and services in the name of their bottom line. #academic_publishing

Anurag Agrawal boosted:
Atlas Obscuraatlas@libranet.de
2023-01-20
Some of Borneo's pitcher plants took insects off the menu in favor of mammal droppings. It's an evolutionary triumph.
These Toilet-Shaped Carnivorous Plants Thrive By Eating Poop
Anurag Agrawal boosted:
2023-01-15

Hey everyone how about we use #evolgen_paper for toots on evolutionary genetics papers/preprints. Unless someone has another hashtag already in wide use.

That way we could all follow along regardless of day/timezone.
cc @alxsim

Please RT

Anurag Agrawal boosted:
2023-01-15

Biochemistry of Peppers
🌶️Why is it that only plants from the genus Capsicum can synthesize compounds that burn so strongly on the tongue?
🌶️How can we taste spiciness?

doi.org/10.1002/chemv.20140003

#chemistry #chemistryviews #chemviews #chemiverse #everydaychemistry #peppers #biochemistry

2023-01-14

Looks to be an innovative study on repeatability in host plant specialization and speciation at the community level (sawflies on Willow)

onlinelibrary.wiley.com/doi/ab

#evolution #herbivory

2023-01-13

talks from a recent symposium on monarch butterfly biology and conservation are now posted on you tube:

monarchwatch.org/events/sympos

Anurag Agrawal boosted:
2023-01-13

Leafy oak gall made by the cynipid wasp, Andricus quercusfoliatus. The leaves look as if they've developed from the scales of an acorn cap (cupule). Highlands Hammock State Park, Sebring, FL. #wasp #Cynipidae #Hymenoptera #insect #entomology #nature #oak #floof

Oak twig with a foliose gall that resembles a miniature Christmas tree.
2023-01-13

@colinpurrington fabulous! I wonder if photosynthesis in these gall fronds contribute strictly to the gall or flow to the rest of the plant; I guess the latter?

Anurag Agrawal boosted:
LadyFluffyOrcaweaniejeanie53@mas.to
2023-01-11

Not a caterpillar - On a frosty May morning, a group of European Bee-eaters perched on a branch gave the impression of a caterpillar at first glance. The vibrant colours of their feathers, with shades of green, blue, and yellow, seemed to blend together and create a fluffy, caterpillar-like appearance. It's also a winning image in Adult Category of European Wild Wonders photo competition, November 2011. José Luis Rodríguez

Not a caterpillar - On a frosty May morning, a group of European Bee-eaters perched on a branch gave the impression of a caterpillar at first glance. The vibrant colours of their feathers, with shades of green, blue, and yellow, seemed to blend together and create a fluffy, caterpillar-like appearance. It's also a winning image in Adult Category of European Wild Wonders photo competition, November 2011. José Luis Rodríguez

Client Info

Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst