Results 211 to 220 of about 82,086 (260)

Dynamics of feeding preferences by a predator

Ecological Modelling, 2002
A mathematical model describing the dynamics of food choice by feeding predator is suggested. The model is developed on the basis of the equation proposed by M. Eigen (1971) for the description of natural selection of biological macromolecules. The model is illustrated by classical experiments on selective feeding of fishes.
V.V. Sukhanov, A.M. Omelko
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Plant sex and hare feeding preferences

Oecologia, 1992
To evaluate the general extent to which sex-related differences in palatability occur in boreal dioecious woody plants, males and females of five dioecious woody plant species were presented to free-ranging mountain hares (Lepus timidus) during winter.
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Feeding preferences of supralittoral isopods and amphipods

Canadian Journal of Zoology, 2000
We examined the feeding preferences of 3 supralittoral crustacean species in the Pacific Northwest of North America. The isopod Ligia pallasii (Brandt, 1833), the rocky-shore amphipod Traskorchestia traskiana (Stimpson, 1857), and the sandy-beach amphipod Megalorchestia californiana (Brandt, 1851) had similar feeding preferences, suggesting that ...
Steven C Pennings, Thomas H Carefoot, Martin Zimmer, Jean Paul Danko, Andreas Ziegler   +4 more
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Feeding behaviour and host preferences of British mosquitoes

Bulletin of Entomological Research, 1971
The arrival of mosquitoes at human bait under natural conditions could be divided into three behavioural phases, the exploratory, the penetration and feeding periods. The duration of these periods was recorded in Mansonia richiardii (Fie), Anopheles plumbeus Steph., Aedes punctor (Kby.), Ae. detritus (Hal.), Ae. cinereus Mg. and Ae.
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Feeding Specialization and Preference in Herring Gulls

The Journal of Animal Ecology, 1986
(1) Previous claims that herring gulls have preferences for particular foods or that they specialize in them have been based on food remains at the nest and repeated observations of tagged individuals. The complex temporal pattern of food availability and the constraints of incubation make such observations hard to interpret.
R. H. McCleery, R. M. Sibly
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Feeding responses and food preferences in the tropical, fruit-feeding butterfly, Bicyclus anynana

Journal of Insect Physiology, 2008
In the tropical butterfly Bicyclus anynana (Nymphalidae) essential components of fitness (such as fecundity and longevity) depend to a large degree on exogenous adult-derived nutrients, particularly carbohydrates. We investigated which of the nutrients/compounds found in the adult diet act as feeding stimuli, and whether butterflies show preferences ...
Anneke, Dierks, Klaus, Fischer
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Effects of drug-desalivation on feeding and taste preferences in the rat

Archives of Oral Biology, 1978
Abstract The relationship was studied between pharmacological xerostomia and taste preferences for diets flavoured with sucrose octa acetate (SOA), saccharine sulphate, NaCl and citric acid. Desalivation was produced by subcutaneous injection of scopolamine methyl nitrate, 1 mg/kg to 20 rats, with 20 control rats injected with saline.
D, Galili, O, Maller, V J, Brightman
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Sucrose Feeding at Weaning Alters the Preference for Sucrose in Adolescence

Experimental and Clinical Endocrinology & Diabetes, 2009
The present studies were undertaken to examine the hypothesis that sucrose feeding at weaning may alter the preference for sucrose in the adolescence. Chronological changes of hypothalamic dopamine (DA), its metabolite, 3,4-dihydroxy-phenylacetic acid (DOPAC) and norepinephrine (NE) contents were also measured by HPLC.
N, Sato, H, Shimizu, Y, Shimomura, Y, Uehara, M, Takahashi, M, Negishi   +5 more
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Design and analysis of multiple choice feeding preference data

Oecologia, 2004
Traditional analyses of feeding experiments that test consumer preference for an array of foods suffer from several defects. We have modified the experimental design to incorporate into a multivariate analysis the variance due to autogenic change in control replicates.
Jeffrey S, Prince, W G, LeBlanc, S, Maciá   +2 more
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Terpenes of ponderosa pine and feeding preferences by pocket gophers

Journal of Chemical Ecology, 1982
Yield and composition of essential oils were compared in foliage, stems, and roots of ponderosa pine seedlings, and preferences for the trees by pocket gophers were determined. Test seedlings represented nine widely separated provenances in the western United States.
M A, Radwan, G L, Crouch, C A, Harrington, W D, Ellis   +3 more
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