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Author Topic: New developments in the field of science  (Read 444174 times)

T40cfr403

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Re: New developments in the field of science
« Reply #2610 on: October 24, 2019, 06:59:53 PM »
Careful design and placement of wind turbines can minimize the threat to birds

https://www.zmescience.com/science/wind-turbine-bird-21102019/

Abstract: Effect of wind turbines on bird abundance: A national scale analysis based on fixed effects models

https://www.sciencedirect.com/science/article/pii/S0301421519302897?via%3Dihub

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2611 on: October 24, 2019, 07:48:31 PM »
Why are bald eagles such great gliders? It's all in the wrist

https://phys.org/news/2019-10-bald-eagles-great-gliders-wrist.html



Spread wings from (top to bottom) a gyrfalcon (Falco rusticolis), American kestrel (Falco sparverius), belted kingfisher (Megaceryle alcyon), red-tailed hawk (Buteo jamaicensis), red-crested turaco (Tauraco erythrolophus), and bar-headed goose (Anser indicus). Specimens from the University of British Columbia's Beaty Biodiversity Museum. Credit: Vikram Baliga, University of British Columbia

Paper: Range of motion in the avian wing is strongly associated with flight behavior and body mass

https://advances.sciencemag.org/content/5/10/eaaw6670


Wing range of motion is more strongly associated with flight behavior and body mass and is more evolutionarily labile than wing shape.

(A) Effect sizes (Cohen's f2) for each of the fixed effects considered. Increasingly positive effect sizes indicate that the addition of that variable substantially improved variance explained; increasingly negative indicates the opposite. Flight behavior or body mass did little to explain wing shape. Flight behavior has a pronounced effect in explaining extension/flexion patterns, whereas body mass substantively explains trends in bending and twisting capability of the hand-wing. Density plots show distributions of f2 as phylogeny is varied. Asterisks indicate that analyses were restricted to four well-represented flight behavior groups. (B) Range of motion traits (purple) have lower phylogenetic signal (Blomberg's κ) than those related to static morphology or flight behavior. A κ value of 1 indicates strong phylogenetic signal that ostensibly follows Brownian motion. Traits with κ values increasingly greater than 1 are more phylogenetically conserved; κ values increasingly lower than 1 indicate greater lability. We performed two sensitivity analyses: one in which phylogeny was varied (dashed distributions) and one in which data were jackknifed (solid).
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2612 on: October 25, 2019, 02:39:00 PM »
Student scientists continue local research of American kestrel

https://www.telluridenews.com/news/article_b25d752e-f6a6-11e9-a210-7b7c520f0af8.html


Telluride Mountain School fifth- and sixth-grade students gather to celebrate the installation of a kestrel nesting box on the Green's property in Norwood. (Photo courtesy of Debbie Shea)
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2613 on: October 26, 2019, 03:04:29 PM »
Roaming Russian eagles leave scientists broke

https://phys.org/news/2019-10-roaming-russian-eagles-scientists-broke.html

Migrating Eagles Run Up Huge Cell Phone Bill for Russian Researchers

https://www.newsweek.com/migrating-eagle-cell-phone-bill-1467873


Steppe eagles face rapid decline due to the spread of farming land across their territory and are vulnerable to wind turbines


Map of Russian eagle migrations
« Last Edit: October 26, 2019, 03:09:38 PM by T40cfr403 »
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T40cfr403

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Re: New developments in the field of science
« Reply #2614 on: October 30, 2019, 12:36:51 PM »

Bird's eggshells change colour depending on how WARM their nests are with animals in colder environments laying darker ones to absorb more heat, study reveals

https://www.dailymail.co.uk/sciencetech/article-7622803/Study-reveals-birds-eggshells-deeper-colours-cold-lighter-warm.html

Paper: The global distribution of avian eggshell colours suggest a thermoregulatory benefit of darker pigmentation

https://www.nature.com/articles/s41559-019-1003-2.epdf?referrer_access_token=firJTPKDSxHL3j-2aGooi9RgN0jAjWel9jnR3ZoTv0PbfQ-1QorHIfHinTdDdZts7jKcsxWZ6QSWuh-ekSTxQ6l5cZGY4KVUpZf_V-tKlATXDPJRZStD_rQHa2PQfP-bqVjz5G5dKowAd3eQnnPac8D7gTSoMp2m6PbuplUna-v5fZUXkzJ7MAqv7dEfcpugoCBJVStA4A7sRCP_H0wdW6sIoaIcecrTiYc1m863tXwzWC1xQmPg_JDUZ8-BbXxN-3f6bbWIWmNgvFZOOSgC5q2c48vd5KJluNp4bpnpVL45dAMFEDf92ITevQxioH95okbOz177iN5BTtEuZvEqug%3D%3D&tracking_referrer=www.dailymail.co.uk


Researchers measured the brightness and colour of eggs, from 643 species of birds, preserved in the collection of various natural history museums. The authors then mapped these colourations onto each species' known geographic breeding area, as pictured
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T40cfr403

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Re: New developments in the field of science
« Reply #2615 on: October 31, 2019, 04:44:11 PM »
Fort Stewart Fish and Wildlife translocate endangered red-cockaded woodpeckers to Florida wildlife refuge

https://www.dvidshub.net/news/349556/fort-stewart-fish-and-wildlife-translocate-endangered-red-cockaded-woodpeckers-florida-wildlife-refuge

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2616 on: October 31, 2019, 04:47:00 PM »
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T40cfr403

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Re: New developments in the field of science
« Reply #2617 on: October 31, 2019, 04:59:38 PM »
Protected status not enough to guard threatened nature reserves, scientists find

http://news.trust.org/item/20191029162018-ddsq8/

Extent of human encroachment into world?s protected areas revealed

https://www.cam.ac.uk/research/news/extent-of-human-encroachment-into-worlds-protected-areas-revealed

Abstract: A global-level assessment of the effectiveness of protected areas at resisting anthropogenic pressures

https://www.pnas.org/content/early/2019/10/22/1908221116



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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2618 on: November 02, 2019, 01:37:44 PM »
Most native bird species are losing their homes, even the ones you see every day

https://phys.org/news/2019-10-native-bird-species-homes-day.html


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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2619 on: November 02, 2019, 01:42:56 PM »
Research Shows Big Drop In Golden Eagle Migration Over Montana

https://www.mtpr.org/post/research-shows-big-drop-golden-eagle-migration-over-montana

Hawk Migration Association of North America's Raptor Migration Database - http://www.hawkcount.org/month_summary.php?rsite=590&ryear=2018&rmonth=10&sec=prevs

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #2620 on: November 02, 2019, 01:50:08 PM »
Niagara man witnesses hawk drowning its captured prey in Menominee River

https://www.ironmountaindailynews.com/news/local-news/2019/11/niagara-man-witnesses-hawk-drowning-its-captured-prey-in-menominee-river/


A lone redhead drake at center loafs with what appears to be mostly ring-necked ducks at Crystal Lake in Iron Mountain. While most of these seemed to be settling in for a nap, the number of waterfowl coming through the region should pick up pace now that conditions are turning colder, migration experts said. The lake had Canada geese, mallard, wood ducks and coots as well, along with what appeared to be a few scaup. (Theresa Proudfit/Daily News photo)
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2621 on: November 02, 2019, 01:54:51 PM »
A toe bone hints that Neandertals used eagle talons as jewelry

https://www.sciencenews.org/article/ancient-toe-bone-hints-neandertals-used-eagle-talons-jewelry


A toe bone of an ancient imperial eagle suggests that around 39,000 years ago, Neandertals removed eagle talons and used them as symbolic pendants, researchers say.
Jesus Giraldo Gutierrez/Shutterstock
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T40cfr403

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Re: New developments in the field of science
« Reply #2622 on: November 02, 2019, 02:31:34 PM »
Woodpecker to parrot: 'Won't you be my neighbor?'

https://news.fiu.edu/2019/woodpecker-says-to-parrot-wont-you-be-my-neighbor

Paper: Exotic parrots breeding in urban tree cavities: nesting requirements, geographic distribution, and potential impacts on cavity nesting birds in southeast Florida

https://avianres.biomedcentral.com/articles/10.1186/s40657-019-0176-3


Parrots nesting in tree cavities. Orange-winged Parrot incubating eggs (a) and near fledglings (b). Nanday Parakeet eggs visible behind tail feathers (c) and near fledgling (d). Red-masked Parakeet guarding eggs (e) and near-fledglings (f)
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #2623 on: November 02, 2019, 02:49:17 PM »
Study finds exotic parrots aren't impacting native bird populations in South Florida

https://phys.org/news/2019-10-exotic-parrots-impacting-native-bird.html

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Re: New developments in the field of science
« Reply #2624 on: November 02, 2019, 02:59:02 PM »
Abstract: Correlations Between Burrowing Owl and Black-Tailed Prairie Dog Declines: A 7-Year Analysis

https://digitalcommons.unl.edu/natrespapers/162/
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring