Results 111 to 120 of about 15,424 (242)

Changes in land‐snail communities and steppe environments in the lower Rhône valley during the Lateglacial–Holocene transition

open access: yesBoreas, EarlyView.
Land snail successions in the lower Rhône valley allow us to reconstruct the postglacial recolonization. From the Lateglacial period onwards, Mediterranean steppe communities appeared. The arrival of forest taxa was significantly delayed by aridity. The question of glacial refugia, both local and distant, primarily concerned Mediterranean species of ...
Frédéric Magnin
wiley   +1 more source

Diversity and prevalence of endoparasites in wild and feral Columbidae across urban and natural habitats

open access: yesParasitology
Pigeons and doves (Columbidae: Columbiformes) commonly inhabit urban and natural environments, where their close association with humans, domestic animals and wildlife facilitates environmental contamination and the transmission of parasitic infections ...
Amal Semmar   +3 more
doaj   +1 more source

Computing Skinning Weights via Convex Duality

open access: yesComputer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

Geometric rule learning by pigeons [PDF]

open access: yes, 2007
In a series of four experiments using an open field search task, pigeons were trained to find a goal located at the midpoint of the hypothetical line connecting two discrete landmarks positioned in a linear array.
Sturz, Bradley
core  

Storying Multispecies‐Life‐and‐Death: Becoming‐Grief‐Able in Educational Spaces for Post‐Necrocene Futures

open access: yesChildren &Society, EarlyView.
ABSTRACT We situate this article from/with/in the Necrocene, a geological period marked by the systematic production of human and more‐than‐human death to an extent that ecological destruction, extinction, loss and harm have become a structural feature of modern life.
Charlotte Hankin, Hannah Hogarth
wiley   +1 more source

Impact of global change on the distribution of mountain mammals and birds

open access: yesConservation Biology, EarlyView.
Abstract Climate change and land‐use changes are key drivers of global biodiversity loss. Many species are shifting to higher elevations or latitudes in response to global warming, often encountering unfavorable land‐use conditions during the shift. These changes can lead to reduced range size and increased extinction risks, particularly for mountain ...
Chiara Dragonetti   +5 more
wiley   +1 more source

[News Clip: Pigeons]

open access: yes, 1960
Video footage from the WBAP-TV television station in Fort Worth, Texas, to accompany a news story about the Lone Star Flying Pigeon Club of Dallas' award ...
WBAP-TV (Television station : Fort Worth, Tex.)
core   +1 more source

Pigeons, the Birds of War

open access: yes, 2021
War heroes are often thought of as soldiers that risked their lives, scientists that created new weapons, or dogs that kept their humans safe in battle. Rarely do the words war hero and pigeon associate with one another.
Stelmacher, Margaret
core  

Genomics‐informed management of ex situ populations

open access: yesConservation Biology, EarlyView.
Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout   +8 more
wiley   +1 more source

[Pigeons]

open access: yes, 1965
Photograph of a flock of pigeons in Venice, Italy. Numerous people are visible in the foreground. A large flock of pigeons is visible in the center of the image between crowds of people.
Gough, Ray
core  

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