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Author Topic: New developments in the field of science  (Read 420822 times)

T40cfr403

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Re: New developments in the field of science
« Reply #2700 on: December 21, 2019, 07:13:00 PM »
Evolution tunes birds to fit the bill

https://phys.org/news/2019-12-evolution-tunes-birds-bill.html

Paper: Evolution of a multifunctional trait: shared effects of foraging ecology and thermoregulation on beak morphology, with consequences for song evolution

https://royalsocietypublishing.org/doi/10.1098/rspb.2019.2474


 (a) Yellow-gaped honeyeater specimen illustrating positions of landmarks (red) and semi-landmarks (magenta). Semi-landmarks were spaced at equal intervals between landmarks using TPSdig. (b) Relative warp grids showing the extreme values of the first two principal component axes (PC1 and PC2). PC1 is referred to as 'depth', and PC2 is referred to as 'curvature' throughout. (c) Phylomorphospace of honeyeater beaks, using the first two PC axes, which together account for 95% of shape variation. Genera with divergent phenotypes are noted.
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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 #2701 on: December 21, 2019, 07:15:25 PM »
Climate research paints bleak picture for large birds in Mojave Desert

https://news.unm.edu/news/climate-research-paints-bleak-picture-for-large-birds-in-mojave-desert


American kestrel and prairie falcon are a few of the bird species that have declined in the Mojave desert due to climate change.
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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 #2702 on: December 21, 2019, 07:23:59 PM »
Millions of Birds Are Migrating Earlier Because of Warming

https://www.scientificamerican.com/article/millions-of-birds-are-migrating-earlier-because-of-warming/

CSU study on bird migration patterns acknowledges rapidly changing climate

https://www.9news.com/video/news/local/next/csu-study-on-bird-migration-patterns-acknowledges-rapidly-changing-climate/73-51394b51-1292-4899-ab01-95fc57994623

Migration Pattern of Birds Are Getting Disrupted By Climate Change on a Continental Scale

https://www.sciencetimes.com/articles/24474/20191218/migratory-birds-colorado-state-university-climate-change.htm

Climate change may be why birds are migrating earlier across the United States

https://www.sciencenews.org/article/climate-change-why-birds-are-migrating-earlier-across-united-states


Every year, whimbrels (Numenius phaeopus) nest in the Canadian and Alaskan tundra before migrating to spend the rest of the year in the mud flats, salt marshes and beaches of the southern United States and South America.
K. Horton/Colorado State Univ.


(Photo : Photo by tareq uddin ahmed on Trends Hype / CC BY) Migration is an important natural event not only for the birds but to the environment, in general.


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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 #2703 on: December 21, 2019, 07:26:54 PM »
Purple martins adapting to climate change, returning earlier: U of M research

https://www.winnipegfreepress.com/local/purple-martins-adapting-to-climate-change-returning-earlier-u-of-m-research-566260042.html


New research from the University of Manitoba shows purple martins have promise in adapting to a changing climate. The swallows, which are native to Manitoba, are nesting earlier during warm years and later during cooler years.
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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 #2704 on: December 23, 2019, 06:46:32 PM »
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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 #2705 on: December 23, 2019, 06:52:22 PM »
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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 #2706 on: January 05, 2020, 03:05:57 PM »
What Do Birds Do in a Hurricane?

https://www.hakaimagazine.com/news/what-do-birds-do-in-a-hurricane/?utm_source=Hakai+Magazine+Weekly&utm_campaign=8a0400a33f-EMAIL_CAMPAIGN_2017_09_06_COPY_02&utm_medium=email&utm_term=0_0fc1967411-8a0400a33f-121598265


Birds can use a range of strategies to avoid the threat posed by hurricanes. Brown pelicans in South Carolina opt to hunker down. Photo by Edward Myles/FLPA/Minden Pictures
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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 #2707 on: January 05, 2020, 04:11:28 PM »
Old nest material functions as an informative cue in making nest-site selection decisions in the European Kestrel (Falco tinnunculus)

https://avianres.biomedcentral.com/articles/10.1186/s40657-019-0182-5


Nest boxes containing different types of nest material occupied by the European Kestrel. Nest materials were categorized into seven types based on previous breeders and manipulation treatments in the study: without nest material (WNM), old European Kestrel nest material (EKM), Great Tit nest material (GTM, both new and old), old Eurasian Red Squirrel nest material (ERSM), artificial nest material of dry leaves and branches (ANM), simulated Eurasian Red Squirrel nest material (SESM), and other types of nest material (OTM, mainly including old Mandarin Duck and Ural Owl nest materials)
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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 #2708 on: January 05, 2020, 05:03:46 PM »
Premature Migration

https://thepoetryofscience.scienceblog.com/1065/premature-migration/

Study: Climate Change Skewing Bird-Migration Timing

https://www.publicnewsservice.org/2020-01-02/endangered-species-and-wildlife/study-climate-change-skewing-bird-migration-timing/a68747-1


Massive bird migration of the black vulture to South America, flying above Panama (Image Credit: Bernal Saborio).


Rising global temperatures have caused birds to seek ranges farther north, in higher elevations and along cooler rivers, streams and wetlands. (Artur Rydzewski/Flickr)

Abstract: Phenology of nocturnal avian migration has shifted at the continental scale

https://www.nature.com/articles/s41558-019-0648-9

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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 #2709 on: January 08, 2020, 04:44:13 PM »
Stick-toting puffins offer the first evidence of tool use in seabirds

https://www.sciencenews.org/article/stick-toting-puffins-offer-first-evidence-tool-use-seabirds

Paper: Evidence of tool use in a seabird

https://www.pnas.org/content/early/2019/12/24/1918060117


Screenshots of a puffin scratching with a stick. Time stamps (hours:minutes:seconds) indicate time elapsed since the first panel. The stick's location is indicated by an arrow. (A) Puffin picking up the stick. (B) Puffin holding the stick. (C) Puffin scratching its chest with the stick. (D) Nine hours later, the stick is still visible on the ground.
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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 #2710 on: January 12, 2020, 07:44:28 PM »
With bioacoustics, conservationists try to save birds through their songs

https://www.washingtonpost.com/science/with-bioacoustics-conservationists-try-to-save-birds-through-their-songs/2020/01/10/8b800048-0c9a-11ea-bd9d-c628fd48b3a0_story.html


A Puaiohi thrush and chicks on Kauai island. Researchers are using bioacoustics to find them and help save the species from extinction. The method is effective in studying birds. This is because their songs are so clear and consistent that recordings now can be mined for powerful scientific data. (Lucas Behnke)


An acoustic recorder to track endangered spotted owls across California?s Sierra Nevada range. Bioacoustics also helps follow whales, bats and frogs, and even measure urban noise. (Connor Wood
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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 #2711 on: January 12, 2020, 07:51:35 PM »
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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 #2712 on: January 12, 2020, 07:52:14 PM »
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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 #2713 on: January 12, 2020, 07:56:58 PM »
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Re: New developments in the field of science
« Reply #2714 on: January 12, 2020, 07:58:42 PM »
Poisoned Hawk Receives Life-Saving Transfusion

https://messengermountainnews.com/news/poisoned-hawk-receives-life-saving-transfusion/


The red-tailed hawk receives blood from a healthy adult of the same species.
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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