Effects of Individual Habitat Selection in a Heterogeneous Environment on Fish Cohort Survivorship: A Modelling Analysis

10.2307/5970 ◽  
1997 ◽  
Vol 66 (1) ◽  
pp. 122 ◽  
Author(s):  
Jeffrey A. Tyler ◽  
Kenneth A. Rose
Keyword(s):  
Habitat Selection ◽  
Heterogeneous Environment ◽  
Modelling Analysis ◽  
Fish Cohort

scholarly journals Polymorphism from environmental heterogeneity: models are only robust if the heterozygote is close in fitness to the favoured homozygote in each environment

1985 ◽  
Vol 45 (3) ◽  
pp. 299-314 ◽  
Author(s):  
Rolf F. Hoekstra ◽  
R. Bijlsma ◽  
A. J. Dolman
Keyword(s):  
Habitat Selection ◽  
Temporal Variation ◽  
Experimental Evidence ◽  
Environmental Heterogeneity ◽  
Heterogeneous Environment ◽  
Partial Dominance ◽  
Favourable Allele

SummaryThe lack of robustness of models of the maintenance of polymorphism in a heterogeneous environment which has been pointed out by Maynard Smith & Hoekstra (1980), applies also to models based on habitat selection, on temporal variation and on density-regulated selection. Only if (partial) dominance ‘switches’ between environments such that the fitness of the heterozygote is always close to the favoured homozygote, is there reasonable robustness. This is true for all models considered. It is argued that there are good reasons for supposing that the favourable allele at a locus may show dominance, although the experimental evidence is still scanty.

Habitat selection maintains a deleterious allele in a heterogeneous environment

Nature ◽  
1980 ◽  
Vol 287 (5783) ◽  
pp. 632-633 ◽  
Author(s):  
J. S. Jones ◽  
R. F. Probert
Keyword(s):  
Habitat Selection ◽  
Heterogeneous Environment ◽  
Deleterious Allele

scholarly journals Polymorphism in a varied environment: how robust are the models?

1980 ◽  
Vol 35 (1) ◽  
pp. 45-57 ◽  
Author(s):  
J. Maynard Smith ◽  
R. Hoekstra
Keyword(s):  
Habitat Selection ◽  
Narrow Range ◽  
Arithmetic Mean ◽  
Heterogeneous Environment ◽  
Simple Assumption ◽  
Partial Dominance ◽  
Protected Polymorphism ◽  
The Way

SUMMARYThis paper shows that a number of models of the maintenance of polymorphism in a heterogeneous environment, including those of Levene and Dempster, can be derived from a simple assumption about the way in which the numbers and kinds of individuals emerging from a niche depend on the number of eggs laid in it. It is shown that for such models, unless selective advantages per locus are large, protected polymorphism requires that the relative niche sizes lie in a narrow range. This lack of robustness applies also to models of stable polymorphism proposed by Clarke and by Stewart & Levin. Excluding models relaying on habitat selection or restricted migration, the only models which may escape this criticism are diploid models with partial dominance with respect to fitness, such as one proposed by Gillespie, in which in all niches the fitness of heterozygotes is higher than the arithmetic mean of the homozygotes.

Hierarchical habitat selection by woodland caribou: its relationship to limiting factors

Ecography ◽  
2000 ◽  
Vol 23 (4) ◽  
pp. 466-478 ◽  
Author(s):  
W. James Rettie ◽  
Francois Messier
Keyword(s):  
Habitat Selection ◽  
Limiting Factors ◽  
Woodland Caribou

Does food-searching ability determine habitat selection? Foraging in sand of three species of gerbilline rodents

Ecography ◽  
2000 ◽  
Vol 23 (1) ◽  
pp. 122-129 ◽  
Author(s):  
Boris R. Krasnov ◽  
Georgy I. Shenbrot ◽  
Luis E. Rios ◽  
Maria E. Lizurume
Keyword(s):  
Habitat Selection ◽  
Searching Ability

Chaotization and Synchronization of Rotifer Dynamics in a Heterogeneous Environment

2006 ◽  
Author(s):  
Maria Gonik ◽  
Alexander Medvinsky
Keyword(s):  
Heterogeneous Environment

Cogeneration and District Energy Systems: Modelling, Analysis and Optimization

2016 ◽  
Author(s):  
Marc A. Rosen Rosen ◽  
Seama Koohi-Fayegh Koohi-Fayegh
Keyword(s):  
Energy Systems ◽  
District Energy ◽  
Modelling Analysis ◽  
Systems Modelling

Seasonal habitat selection of an expanding sika deer Cervus nippon population in eastern Hokkaido, Japan

2003 ◽  
Vol 9 (1) ◽  
pp. 141-153 ◽  
Author(s):  
Mayumi Sakuragi ◽  
Hiromasa Igota ◽  
Hiroyuki Uno ◽  
Koichi Kaji ◽  
Masami Kaneko ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Selection Of
Sign in / Sign up

Export Citation Format

Share Document