Foraging by generalist grasshoppers: two different strategies
Article Abstract:
Foraging activities of foliage-cryptic species of generalist grasshoppers, Schistocerca nitens and S. shoshone, are characterized by less polyphagy, selective preference for plant species and low levels of locomotor activity. They feed on a single plant and its different tissues for most of the day. While successive feeding-bout lengths on a single plant species decrease, bout lengths for novel plants increase. These patterns differ from those of aposematic species, which are less sedentary, and frequently shift between plant species.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Foraging behaviour and sexual segregation in bighorn sheep
Article Abstract:
A population of marked bighorns was observed to test the hypothesis that differences in time spent foraging and movement rates alone could explain sexual segregation. The time that male and female bighorns spent lying, grazing or walking, and the initial and final location of groups and steps taken per minute foraging, were noted. Results indicate that sexual differences in time budgets and movement patterns lead to sexual segregation due to the difficulty for males and females to stay in the same group.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Foraging mode, prey chemical discrimination, and phylogeny in lizards
Article Abstract:
The development of chemosensory organs and behavioral patterns to increase foraging has led to the evolution of higher squamate reptiles. Prey chemical differentiation is an adaptive mechanism developed to adjust the foraging mode. In herbivore and actively foraging reptiles, tongue flicking allows for the testing of chemicals to locate the prey but in ambush-foraging species the tongue does not release any chemicals to detect the prey.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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