Results 41 to 50 of about 7,816 (192)

Log, Rock, and a Gradient of Choice: Speleomantes strinatii Adjusts Shelter Use with Stream Distance

open access: yesDiversity
Understanding microhabitat preferences of endangered species and the drivers involved in this selection are crucial for understanding their ecology and implementing conservation actions.
Giacomo Rosa   +2 more
doaj   +1 more source

Quantity discrimination in salamanders [PDF]

open access: yesJournal of Experimental Biology, 2010
SUMMARYWe investigated discrimination of large quantities in salamanders of the genus Plethodon. Animals were challenged with two different quantities (8 vs 12 or 8 vs 16) in a two-alternative choice task. Stimuli were live crickets, videos of live crickets or images animated by a computer program.
Paul, Krusche   +2 more
openaire   +2 more sources

Reasoning Together or Clicking Though? Analyzing Patterns of Group Science Talk On and Off Individualized Computers

open access: yesScience Education, EarlyView.
ABSTRACT In this article, I examine group science talk within the classrooms of three urban secondary science teachers who regularly use one‐to‐one computers to mediate their NGSS‐aligned science instruction. I combine methods of framing analysis (Goffman 1974; Tannen 1993) and interaction analysis (Jordan and Henderson 1995) to illustrate differences ...
Tess Bernhard
wiley   +1 more source

Contrasting apex predator responses to experimentally reduced flow and increased temperature in a headwater stream

open access: yesEcosphere
Changing climate conditions are expected to cause increases in the frequency and severity of drought conditions in many areas around the world, including the Pacific Northwest region of North America.
Madelyn Maffia   +3 more
doaj   +1 more source

Protective Immunity Induced by DNA Vaccination against Ranavirus Infection in Chinese Giant Salamander Andrias davidianus

open access: yesViruses, 2018
Andrias davidianus ranavirus (ADRV) is an emerging viral pathogen that causes severe systemic hemorrhagic disease in Chinese giant salamanders. There is an urgent need for developing an effective vaccine against this fatal disease.
Zhong-Yuan Chen   +4 more
doaj   +1 more source

Limited Effects of Temperature on Captive Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis) Growth

open access: yesZoo Biology, EarlyView.
While higher temperatures are generally expected to increase amphibian growth, our experiments with captive‐reared Eastern Hellbenders found no evidence that growth increased at a rearing temperature of 21°C relative to 16°C. As Eastern Hellbender reintroduction efforts move forward, a focus on other conditions, such as density or diet, might be more ...
Kylie S. Soniak   +4 more
wiley   +1 more source

Landscape and management factors influence the occupancy dynamics of sympatric salamanders in an urban preserve system

open access: yesGlobal Ecology and Conservation, 2019
Conserving amphibian populations living in urban areas is challenging due to a lack of information about urban amphibian natural history, ecology, and responses to habitat management.
John P. Vanek   +2 more
doaj   +1 more source

Effects of Density and Food Availability on the Growth of Captive‐Reared Eastern Hellbenders

open access: yesZoo Biology, EarlyView.
Our experiments demonstrate that food is the major factor limiting captive‐reared Hellbender growth and that increasing rearing density to the tested levels does not negatively impact growth. Implementing these changes may result in larger, more robust Hellbenders and increase the success of reintroduction programs.
Shelby M. Royal   +4 more
wiley   +1 more source

Fine‐scale spatial variation in eastern grey squirrel melanism across a complex urban landscape

open access: yesJournal of Animal Ecology, EarlyView.
By sampling 197 parks, the study demonstrates how natural geography creates divergence within cities. The findings reveal that the St. Lawrence River and its tributaries act as barriers, disrupting urban melanism clines in grey squirrels. Ultimately, the research indicates that natural features still dictate evolutionary rules in anthropogenic ...
Francis Quang‐Hai Dinh   +3 more
wiley   +1 more source

Reintroduction and Post-Release Survival of a Living Fossil: The Chinese Giant Salamander.

open access: yesPLoS ONE, 2016
Captive rearing and reintroduction / translocation are increasingly used as tools to supplement wild populations of threatened species. Reintroducing captive-reared Chinese giant salamanders may help to augment the declining wild populations and conserve
Lu Zhang   +7 more
doaj   +1 more source

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