msquebanh, to climate
@msquebanh@mastodon.sdf.org avatar

The common #loon, that #icon of northern #wilderness, is under threat from #ClimateChange due to declining #WaterClarity. Published earlier this month in the journal #Ecology, a study conducted by #biologists from #ChapmanUniversity & #RensselaerPolytechnicInstitute has demonstrated the first clear #evidence of an effect of climate change on this species whose distinct call is so tied to the soundscape of #Canada’s lakes & #wetlands.

https://canadiangeographic.ca/articles/wildlife-wednesday-loons-water-clarity-diminishes/

#WildlifeWednesday #Nature

Pepijn, to science
@Pepijn@mastodon.online avatar

Question for #plant #biologists that might be in my network:

Q: I grow batches of #sequoia. About one quarter of seedlings form little water drops on the tips of the first leaves / cotyledons. These stay in place for about two weeks. The rest of the seedlings do not show any of this.

I assume this is some type of guttation. Any I'm loosely theorizing it has to do with how the cotyledons were split, maybe damaged. But frankly, I don't know :-)

Any insight from 🌲 🌱 #science people are welcome!

koen_hufkens, to mastodon
@koen_hufkens@mastodon.social avatar

A casual observation, for me has settled into something that resembles what "good" Twitter used to look like. I can only thank the devs and the community at large.

I think there is a bit more space for the academic component to grow, but much of that has moved to LinkedIn (keeping business and fun separated). Fair enough for me.

kofanchen,
@kofanchen@drosophila.social avatar

@koen_hufkens over in here at the corners of .social, .social and .social exciting conversation are plenty too.

msquebanh, to Canada

From to border, including , consider the region to be one of Canada’s richest and most .

Foundation, org, will manage the grant on behalf of participating with an eye toward raising another $200 million toward the development of the initiative.

https://www.missioncityrecord.com/news/indigenous-led-conservation-in-bcs-great-bear-sea-gets-60-million-injection-7119098

sflorg, to random
@sflorg@mastodon.social avatar

A new genomic study by UCLA #biologists shows that whaling in the 20th century destroyed 99% of the Eastern North Pacific fin #whale breeding, or “effective,” population — 29% more than previously thought.
#Conservation #MarineBiology #sflorg
https://www.sflorg.com/2023/10/con10132302.html

msquebanh, to anime_titties
@msquebanh@mastodon.sdf.org avatar

Larger and larger groups of what are essentially encroaching on protected land have invaded the forest and are cutting down trees and pulling up plants at a rapid rate. Whole patches of the tree-dense area are now bare.

The poachers destroy the flora in order to plug electrodes into the ground and shock the soil with electricity that forces the to rise out of the earth for easy capture.
https://ampe.vnexpress.net/news/news/environment/vietnamese-earthworm-hunters-destroying-protective-forest-go-unpunished-4653107.html

msquebanh,
@msquebanh@mastodon.sdf.org avatar

@SallyStrange I don't but boosted your post & maybe some #earthworm / #worms #biologists can help!

SallyStrange,
@SallyStrange@autonomous.zone avatar

@msquebanh Thank you thank you! crosses fingers, knocks on wood

#earthworm #worms #biologists

SICBJOURNALS, to science

Field work is essential to the career of many #biologists; however, when working in the field while #black (FWB), everyday tasks conducted while in the field can be life-threatening..."

https://doi.org/10.1093/icb/icad062

by Alex Troutman
From a talk given at
SICB ‘s 2023 conference , issue 1

#science #biology #blackinstem

krssctt, to science
@krssctt@mastodon.social avatar

My kid just asked me if backbones give you eyelids. I was as confused as you would expect, but he explained:

While some vertebrates do not have eyelids, he couldn’t think of any invertebrates that do have them, so his conclusion was that having eyelids requires a backbone.

Now I’m definitely no #biology expert (this kid probably knows more than I do) but I do know that eyes evolved independently in different animals. Now, #biologists, I am curious. Do any #invertebrates have eyelids?

PlantHumboldt, to science
@PlantHumboldt@sfba.social avatar

A lot of what we do here at Plant Humboldt has nothing to do with cannabis.

This is our lined, rainwater collection, irrigation pond. It's about 500 ft/sq and 16' at the deepest. Floating in the middle is a salvaged standup paddleboard converted into a floating island.

I set it up last August as an experiment. While the plants are growing (see photos from last year's planting time), they aren't thriving. I need to figure out what's going on.

Once I get it dialed in, the plan is to bolt five or six paddleboards together to make a large habitat island that will also support enough root mass below it that it will reduce the nutrient load in the water. Ideally this will reduce the planktonic algae that gives the water its pea soup color.

In the next post, I'll give a little info on why I think the plants aren't doing so well and ask for advice. Any aquatic who understand chemistry out there?

Hover on alt text in photos for detailed descriptions.

Five green, 5-gallon plastic buckets. They have been drilled full of 1" diameter holes throughout the sides and bottom. One of the buckets is empty as a demonstration. The other four have been lined with cheap paint strainer liners made of synthetic material. Then they were filled with a mix of red lava rock, clay and potting soil and planted with water plants. The mix is one I came up with my self based on online reading and personal experience with water plants. These species are all what are called "emergent", meaning the "emerge" or grow from shallow water, as opposed to riparian species that grow in soil at the water's edge or others, such as water hyacinths that float freely on the surface. The potting soil provides some nutrients; the lava rock provides some aeration and the clay holds it all together, mimicking wetland mucky soil. I'm thinking I may have used too much clay, but I'll have to experiment to test this. These buckets fit into the holes in the standup paddleboard in the previous photo. In order for water to slosh over the tops of the buckets, the top inch or two has been cut off and the metal handles have been removed.
For more description, see the previous two photos in this post. This is all 8 green, plastic, 5-gallon buckets, drilled full of holes, lined with paint bucket filters, filled with a soil mix and planted with wetland plants. They are sitting on an orange push cart ready to be taken down to the irrigation pond. This is how they looked in August of 2022 when originally planted. They came from a nursery that sells wetland plants and were originally either bare-root or in 1-gallon pots. They are relatively small plants. Compared to the first picture that was taken today, July 8, 2023, they haven't really grown much. I'm still trying to figure out why.

morgfair, to random
@morgfair@newsie.social avatar
HistoPol,
@HistoPol@mastodon.social avatar

@morgfair

Fascinating: researchers in LA simulate a planetary mass extinction level event (#ELE) for the first time

Prof. Jarmila #Pittermann and Alex #Baer, two plant #biologists at #UCSantaCruz, examine ferns inside the #greenhouse where they simulated the conditions of the #Cretaceous-Paleogene (K-Pg) extinction event."

Only the strong survive

Spoiler: it wouldn't have been humans.
While 75% of of all species did not survive the ELE; ferns did.

https://www.latimes.com/science/story/2023-05-31/the-biggest-extinction-event-in-the-planets-history-is-happening-again-in-santa-cruz

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