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Author Topic: New developments in the field of science  (Read 447354 times)

T40cfr403

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Re: New developments in the field of science
« Reply #1455 on: November 29, 2017, 12:43:23 PM »
Feathered dinosaurs were even fluffier than we thought

https://www.sciencedaily.com/releases/2017/11/171128230425.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29


Depiction of Anchiornis and its contour feather. Credit: Rebecca Gelernter

(The paper, below, has many photos and drawings of the feathers.)

ADDITIONAL INFORMATION ON THE PRIMITIVE CONTOUR AND WING FEATHERING OF PARAVIAN DINOSAURS

http://sci-hub.bz/10.1111/pala.12342
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T40cfr403

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Re: New developments in the field of science
« Reply #1456 on: November 29, 2017, 12:51:35 PM »
Quote from: T40cfr403 on November 11, 2017, 03:40:21 PM
'On life support:' Research shows common pesticides starve, disorient birds

http://nationalpost.com/pmn/news-pmn/canada-news-pmn/on-life-support-research-shows-common-pesticides-starve-disorient-birds


A white crested sparrow is seen in this undated handout photo. Research suggests that two of Canada's most commonly used pesticides cause migrating songbirds to lose both weight and their sense of direction. THE CANADIAN PRESS/HO, University of Saskatchewan *MANDATORY CREDIT*


Paper: Imidacloprid and chlorpyrifos insecticides impair migratory ability in a seed-eating songbird

https://www.nature.com/articles/s41598-017-15446-x.epdf

Quotes:

"These results suggest that wild songbirds consuming the equivalent of just four imidacloprid-treated canola seeds or eight chlorpyrifos granules per day over 3 days could suffer impaired condition, migration delays and improper migratory direction, which could lead to increased risk of mortality or lost breeding opportunity."

"Declines in migratory bird populations have been linked to a range of complex factors, including the large-scale application of agricultural pesticides."

"Birds that utilize agricultural landscapes may be exposed to insecticides through consumption of treated seeds, granules, or sprayed soils and prey items. Small migratory songbirds that regularly use farmland habitats as a stopover and refuelling source may be particularly susceptible to exposure and the negative effects of neurotoxic insecticides."

"Organophosphates and neonicotinoids have effects on survival, as well as sublethal neurophysiological and behavioural effects in birds, including impaired thermoregulation and food consumption."

More: Common pesticide can make migrating birds lose their way, research shows

https://www.theguardian.com/environment/2017/nov/29/common-pesticide-can-make-migrating-birds-lose-their-way-research-shows


The new research analysed the effect of the neonicotinoid imidacloprid on white-crowned sparrows that migrate from the southern US and Mexico to northern Canada in summer. Photograph: Danita Delimont/Alamy


Neonicotinoids are usually applied to seeds, which can be eaten by many different animals. Photograph: Daniel Acker/Bloomberg via Getty Images
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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 #1457 on: November 30, 2017, 02:28:22 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 #1458 on: November 30, 2017, 02:29:20 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 #1459 on: November 30, 2017, 06:32:26 PM »
Anticoagulant rodenticide toxicity to non-target wildlife under controlled exposure conditions

Book Abstract: https://pubs.er.usgs.gov/publication/70194112

Book Chapter 3: http://sci-hub.bz/10.1007/978-3-319-64377-9_3
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T40cfr403

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Re: New developments in the field of science
« Reply #1460 on: December 01, 2017, 12:41:20 PM »
Could Baby Pterosaurs Fly? A Massive Fossil Find Launches Fresh Debate

https://www.thedailybeast.com/could-baby-pterosaurs-fly-a-massive-fossil-find-launches-fresh-debate?via=newsletter&source=DDAfternoon




Hundreds of pterosaur eggs help reveal the early life of flying reptiles

https://theconversation.com/hundreds-of-pterosaur-eggs-help-reveal-the-early-life-of-flying-reptiles-88266








Scientists just discovered the mother lode of pterosaur eggs, and they are over the moon

https://www.washingtonpost.com/news/speaking-of-science/wp/2017/11/30/discovery-of-hundreds-of-pterosaur-eggs-has-paleontologists-really-excited/?utm_term=.37a03768dc52


Paper: Egg accumulation with 3D embryos provides insight into the life history of a pterosaur

http://sci-hub.bz/10.1126/science.aan2329
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T40cfr403

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Re: New developments in the field of science
« Reply #1461 on: December 01, 2017, 02:56:26 PM »
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T40cfr403

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Re: New developments in the field of science
« Reply #1462 on: December 02, 2017, 07:28:44 PM »
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T40cfr403

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Re: New developments in the field of science
« Reply #1463 on: December 04, 2017, 10:11:19 AM »
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T40cfr403

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Re: New developments in the field of science
« Reply #1464 on: December 04, 2017, 10:20:48 AM »
Environmental and ecological conditions at Arctic breeding sites have limited effects on true survival rates of adult shorebirds

http://www.bioone.org/doi/full/10.1642/AUK-17-107.1?utm_source=November+2017+Content+Alert&utm_campaign=November+2017+Content+Alert&utm_medium=email

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Re: New developments in the field of science
« Reply #1465 on: December 04, 2017, 10:23:30 AM »
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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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Re: New developments in the field of science
« Reply #1466 on: December 04, 2017, 10:25:19 AM »
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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 #1467 on: December 04, 2017, 10:26:57 AM »
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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 #1468 on: December 04, 2017, 10:28:16 AM »
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T40cfr403

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Re: New developments in the field of science
« Reply #1469 on: December 04, 2017, 10:30:13 AM »
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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