Results 251 to 260 of about 2,335,673 (304)

Habitat selection by helminths: a hypothesis

Parasitology Today, 1990
How do liver worms find the liver? Why are heartworms always found in the heart? Attempts to answer these questions have invariably yielded inconclusive results. A major problem has been the use of models or hypotheses derived from studies of free-living organisms.
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Habitat Selection in a Clonal Plant

Science, 1985
Rhizomatous growth may permit the nonrandom placement of ramets into different environments, but whether clonal plants are able to use this means to exercise adaptive habitat choice is not known. Western ragweed (Ambrosia psilostachya) plants are shown to preferentially colonize nonsaline soil over saline soil patches, and clones with the strongest ...
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A dynamic habitat selection game

Mathematical Biosciences, 1990
A patch selection game is formulated and analyzed. Organisms can forage in one of H patches. Each patch is characterized by the cost of foraging, the density and value of food, the predation risk, and the density of conspecifics. The presence of conspecifics affects the finding and sharing of food, and the predation risk. Optimal foraging theory can be
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Habitat selection in a variable environment

Journal of Theoretical Biology, 1973
Abstract A Monte Carlo simulation scheme was utilized to determine optimal strategies of habitat utilization in a variable environment. The model allows for differences in quality among habitats at any one time and for varying levels of environmental variance and autocorrelation. When habitats are on the average equal in quality, tracking of temporal
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Perspectives of habitat selection

2001
In Chapter 4 questions concerning the choice of monitoring habitats are discussed. It is argued that the choice in principle shall be the result of a “case by case” assessment, which in fact is what should be processed during the ecological risk assessment.
Gösta Kjellsson, Morten Tune Strandberg
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Habitat selection by grayling—I. Spawning habitats

Journal of Fish Biology, 1995
Grayling spawning sites were investigated in two French rivers, the Pollon (1 year) and the Suran (2 years) and described by current velocity, water depth, and substrate composition, completed by an assessment of bottom shear stress with FST‐hemispheres. A comparison was made between used and available habitats, the latter being characterized by random
P. Sempeski, P. Gaudin
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Habitat Selection in Birds

1965
Publisher Summary This chapter discusses habitat selection in birds that involves recognition of the habitat and establishment of preferences. An analysis of the manner whereby habitat preferences are fixed are preceded by a study of the sensory capabilities of the animals in question.
P.H. Klopfer, J.P. Hailman
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Habitat Selection in Plants

The American Naturalist, 1991
Habitat-selection concepts have rarely been explicitly used for plants, perhaps because the majority of them are immobile. For plants, habitat selection results from evolutionary adjustment of species to environmental factors so that the species functions better in some habitats than in others.
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Habitat Selection ☆

2013
Robert A. Montgomery, Gary J. Roloff
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Habitat Selection: Introduction

1990
Habitat selection is a key component in the adaptive response of animals to their environments, and it can profoundly influence the selective regime to which the pre-adult and, in some cases, the adult stages of the organisms are exposed.
J. S. F. Barker, William T. Starmer, Ross J. MacIntyre   +2 more
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