Results 251 to 260 of about 170,616 (303)
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Nutritional ecology and foraging theory
Current Opinion in Insect Science, 2018Historically, two fields of research have developed theory around foraging and feeding that have influenced biology more broadly, optimal foraging theory and nutritional ecology. While these fields have developed largely in parallel, they are complementary with each offering particular strengths.
David, Raubenheimer, Stephen J, Simpson
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Forages and pastures symposium: forage biodegradation: advances in ruminal microbial ecology
Journal of Animal Science, 2023Abstract The rumen microbial ecosystem provides ruminants a selective advantage, the ability to utilize forages, allowing them to flourish worldwide in various environments. For many years, our understanding of the ruminal microbial ecosystem was limited to understanding the microbes (usually only laboratory-amenable bacteria) grown in ...
A M Osorio-Doblado +7 more
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Foraging Ecology of Northern Elephant Seals
Ecological Monographs, 2000Sexual segregation in foraging is predicted from the great size disparity of male and female northern elephant seals, Mirounga angustirostris. Our aim was to test this prediction by measuring diving and foraging behavior, foraging locations, and distribution of the sexes during biannual migrations in the northeastern Pacific Ocean.
Le Boeuf, Burney J. J. +5 more
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Behavior and Ecology of Foraging in Termites
2000Foraging behavior has evolved in concert with termite life types, some species feeding on the wood in which they live and others harvesting food that is separate from the nest. The nutritional value of food sources appears to be critically important to colony foundation by alates as well as food selection by workers.
James F. A. Traniello +1 more
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Pheromones and Chemical Ecology of Dispersal and Foraging in Termites
2010Pheromones play a crucial role in the ecology of dispersal and foraging in termites. Sex-pairing pheromones possess a double role of long-range attraction to unite sexual partners and a short-range or contact attraction to maintain the pair during the tandem behaviour.
Bordereau, Christian, Pasteels, Jacques
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The Foraging Ecology of Peruvian Seabirds
The Auk, 1983Abstract Most feeding by seabirds in the Peruvian Coastal Current, an upwelling of high productivity off the west coast of South America, takes place in groups. The major prey is an anchovy (Engraulis ringens), which occurs in large shoals and is exploited mainly by three species: the Peruvian Booby (Sula variegata), Peruvian Brown ...
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THE FORAGING ECOLOGY OF FEMALE EMPEROR PENGUINS IN WINTER
Ecological Monographs, 1997The foraging location, diving behavior, dietary composition, and feeding rates of female Emperor Penguins (Aptenodytes forsteri) from the Auster and Taylor Glacier colonies in Antarctica were investigated during the 1993 austral winter. The study was conducted between late May and early August, when male emperors remain at the colonies to incubate eggs
Roger Kirkwood, Graham Robertson
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The Sensory Ecology of Foraging for Animal Prey
2012Many prosimians eat animal food, including arthropods and small vertebrates. This chapter explores the clues prosimians rely on to detect and identify animal prey, and their sensory adaptations for predation. Available observational and experimental datasets suggest that acoustic and visual (especially motion) cues, as well as olfactory and tactile ...
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Assessment of forage availability in ecological studies
European Journal of Wildlife Research, 2005In this study we describe and calibrate a quantitative index method to estimate leaf biomass and forage availability for browsers at different feeding heights. The method is based on an index relating leaf biomass to a number of leaf contacts with a vertical, three-dimensional (25×25×165 cm) metallic quadrat with a central rod and takes into account ...
Sonia Saïd +4 more
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Foraging Cognition: Reviving the Ecological Intelligence Hypothesis
Trends in Cognitive Sciences, 2017What are the origins of intelligent behavior? The demands associated with living in complex social groups have been the favored explanation for the evolution of primate cognition in general and human cognition in particular. However, recent comparative research indicates that ecological variation can also shape cognitive abilities.
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