نتایج جستجو برای: animal ecology
تعداد نتایج: 256488 فیلتر نتایج به سال:
Chemical, biological, and physical processes lead to distinctive "isotopic signatures" in biological materials that allow tracing of the origins of organic substances. Isotopic variation has been extensively used by plant physiological ecologists and by paleontologists, and recently ecologists have adopted the use of stable isotopes to measure ecosystem patterns and processes. To date, animal p...
The articles on rabies and Marburg virus featured in this month's Emerging Infectious Diseases (EID) zoonoses issue illustrate common themes. Both discuss zoonotic diseases with serious health implications for humans, and both have a common reservoir, the bat. These articles, and the excitement generated by this year's recognition of World Rabies Day on September 8, also described in this issue...
Until recently almost nothing was known about the effects of plant polyploidy on interactions with herbivores and pollinators. Studies of the saxifrage Heuchera grossulariifolia throughout its geographical range in the US northern Rockies have shown that autopolyploidy has probably arisen multiple times within this species since the end of the Pleistocene. Tetraploids from those different origi...
1 Arctic Centre, University of Groningen, Groningen, Netherlands, 2 FRAM—High North Research Centre for Climate and the Environment, Norwegian Polar Institute, Tromsø, Norway, 3 Arctic Ecology Department, FRAM—High North Research Centre for Climate and the Environment, Norwegian Institute for Nature Research (NINA), Tromsø, Norway, 4 Department of Biology, Norwegian University of Science and Te...
Serendipitous observations of Antarctic krill feeding at abyssal depths may revolutionise our view of the ecology of this supposed surface-dwelling animal that is key to the function of the Southern Ocean ecosystem.
The ecological factors responsible for the evolution of individual differences in animal personality (consistent individual differences in the same behaviour across time and contexts) are currently the subject of intense debate. A limited number of ecological factors have been investigated to date, with most attention focusing on the roles of resource competition and predation. We suggest here ...
Ten years after the SARS epidemic, zoonotic and emerging viruses have become a growing field of research. Some remarkable novel virus descriptions in animals have demonstrated how ignorant we are of the diversity of viruses around us. In our efforts to delineate viral origins we may have to re-assess our concept of reservoir. In many instances, we are mixing up ecological and epidemiological im...
We discuss the concept of Enaction as originally proposed by Varela. We attempt to exemplify through two specific topics, sensory ecology and behavior, as well as physiological and behavioral ecology, on which the enactive approach is based. We argue that sensory physiology allows us to explore the biological and cognitive meaning of animal 'private' sensory channels, beyond the scope of our ow...
Martijn van de Pol*, Bruno J. Ens, Dik Heg, Lyanne Brouwer, Johan Krol, Martin Maier, Klaus-Michael Exo, Kees Oosterbeek, Tamar Lok, Corine M. Eising and Kees Koffijberg Evolution, Ecology & Genetics, Research School of Biology, the Australian National University, Canberra O200 ACT, Australia; Centre for Conservation Biology, Norwegian University of Science and Technology, Trondheim, DU1-184, N...
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