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Author Topic: New developments in the field of science  (Read 444973 times)

T40cfr403

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Re: New developments in the field of science
« Reply #1890 on: September 01, 2018, 08:44:11 PM »
Use of suburban landscapes by the Pileated Woodpecker (Dryocopus pileatus)

http://americanornithologypubs.org/doi/full/10.1650/CONDOR-17-171.1?code=coop-site


Study areas in Greater Seattle, Washington, USA, where we studied how Pileated Woodpeckers used suburban areas that varied in their level of urbanization. Land cover types follow Alberti et al. (2006).
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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 #1891 on: September 01, 2018, 08:46:19 PM »
Timing and duration of primary molt in Northern Hemisphere skuas and jaegers

http://www.americanornithologypubs.org/doi/full/10.1642/AUK-17-232.1?code=coop-site


Progress of molt in adult (black), second/third-cycle (blue), and first-cycle (red) jaegers and Great Skuas, expressed as the proportion of feather mass grown (PFMG). Shaded areas represent 95% confidence intervals. Box plots above plots of Long-tailed and Parasitic jaegers show (from left to right) start of southbound migration, arrival at nonbreeding grounds, and departure from nonbreeding grounds as inferred from geolocator data. Approximate timing of migration based on the literature is shown by horizontal lines above the plots of Pomarine Jaeger and Great Skua.
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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 #1892 on: September 02, 2018, 02:46:29 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 #1893 on: September 06, 2018, 01:53:45 PM »
OU team to develop new methods to track bird migration and adaptability

https://www.eurekalert.org/pub_releases/2018-09/uoo-ott090518.php

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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 #1894 on: September 06, 2018, 02:05:11 PM »
Tiny 'butcher birds' that impale their prey on SPIKES take down larger animals by giving them whiplash

http://www.dailymail.co.uk/sciencetech/article-6134463/Head-turning-violence-helps-tiny-songbirds-kill-big-prey-study.html


While a razor-sharp bill helps them carry out violent attacks, experts have long wondered about their ability to subdue much larger prey. Researchers say shrikes use powerful beak-and-jaw motions to shake their victims vigorously, causing injuries akin to whiplash
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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 #1895 on: September 07, 2018, 02:01:47 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 #1896 on: September 07, 2018, 02:25:16 PM »
Article: 'Live fast, die young' lifestyle reflected in birds' feathers

https://www.sciencedaily.com/releases/2018/09/180905131850.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


Close-up photography of museum specimens helped a scientist determine that birds' feather growth rate depends on where they live.
Credit: R. Terrill


Paper: Feather growth rate increases with latitude in four species of widespread resident Neotropical birds

http://www.bioone.org/doi/10.1642/AUK-17-176.1

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T40cfr403

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Re: New developments in the field of science
« Reply #1897 on: September 07, 2018, 02:29:11 PM »
Article: Burly bird gets the worm

https://www.sciencedaily.com/releases/2018/09/180905161946.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29

Paper: Effects of supplementary feeding on interspecific dominance hierarchies in garden birds

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0202152


Dominance rank order has been reversed to illustrate increasing dominance along the y-axis, from least (rank = 10) to most (rank = 1) dominant. Species: (CT) coal tit, (BT) blue tit, (GO) goldfinch, (GT) great tit, (R.) robin, (D.) dunnock, (CH) chaffinch, (NH) nuthatch, (HS) house sparrow, (GR) greenfinch.
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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 #1898 on: September 07, 2018, 02:31:10 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 #1899 on: September 07, 2018, 02:35:04 PM »
(Not about birds, but still fascinating.)

Big game animals must learn to migrate and pass knowledge across generations

https://www.sciencedaily.com/releases/2018/09/180906141626.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


Migration corridors depend on maintaining both habitat connectivity and animals' knowledge of the landscape, demonstrated by these migrating bighorn sheep in Park County, Wyo.
Credit: Travis Zaffarano Trailcam Photo, Wyoming Migration Initiative
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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 #1900 on: September 08, 2018, 04:46:45 PM »
Birds retreating from climate change, deforestation in Honduras cloud forests

https://www.sciencedaily.com/releases/2018/09/180906184231.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


This is a resplendent Quetzal, an icon of the Central American cloud forest, and one of the study's focal species.
Credit: Sam Jones
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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 #1901 on: September 08, 2018, 04:47:25 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.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #1902 on: September 10, 2018, 02:49:28 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.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #1903 on: September 10, 2018, 02:50:41 PM »
Parrot economics: More later makes sense

https://www.sciencedaily.com/releases/2018/08/180822141018.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


An African grey parrot is confronted with the decision between an immediate small food reward and a token which the bird can only later exchange for high-quality food.
Credit: CCRG
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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 #1904 on: September 10, 2018, 02:53:32 PM »
Macaws may communicate visually with 'blushing,' ruffled feathers

https://www.sciencedaily.com/releases/2018/08/180822141023.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


This is a 'Blushing' macaw (left) compared to a 'non-blushing' macaw (right).
Credit: A. Beraud CC-BY
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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