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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
13/05/1999 |
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Data da última atualização: |
13/05/1999 |
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Autoria: |
GALINDO, C.; KREBS, C. J. |
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Título: |
Popualtion regulation in deer mice: the role of females. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Journal of Animal Ecology, v.56, n.1, p.11-23, 1987. |
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Idioma: |
Inglês |
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Conteúdo: |
(1) The influence of adult females on juvenile survival was assessed in a northern population of deer mice Peromyscus maniculatus during the snow-free season of 1983.
(2) Removal of breeding females from two areas resulted in a higher recruitmant of juveniles. This was due to an increase in the survival of resident juveniles during their first
month of life before they were recruited into the trapable population.
(3) Survival of all trapable juveniles did not differ between experimental and control areas.
(4) Production ( number of juveniles recruited per female ) was negatively related to the number of breeding females and unrelated to the number of breeding males.
(5) Densities were 1.5-3 times higher in the female removal grids than in the control grids during late July.
(6) Migration of adults during the breeding season was strongly biased towards males. There was no apparent sex bias in migration among juveniles.
(7) Thus, in the study area in the southern Yukon female deer mice determine juvenile recruitment, and males are uniportant in population regulation. |
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Palavras-Chave: |
Deer mice; Rodent. |
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Thesagro: |
Ecologia Animal; População; Roedor. |
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Thesaurus Nal: |
animal ecology; Peromyscus maniculatus; population. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01672naa a2200229 a 4500
001 1795958
005 1999-05-13
008 1987 bl --- 0-- u #d
100 1 $aGALINDO, C.
245 $aPopualtion regulation in deer mice$bthe role of females.
260 $c1987
520 $a(1) The influence of adult females on juvenile survival was assessed in a northern population of deer mice Peromyscus maniculatus during the snow-free season of 1983. (2) Removal of breeding females from two areas resulted in a higher recruitmant of juveniles. This was due to an increase in the survival of resident juveniles during their first month of life before they were recruited into the trapable population. (3) Survival of all trapable juveniles did not differ between experimental and control areas. (4) Production ( number of juveniles recruited per female ) was negatively related to the number of breeding females and unrelated to the number of breeding males. (5) Densities were 1.5-3 times higher in the female removal grids than in the control grids during late July. (6) Migration of adults during the breeding season was strongly biased towards males. There was no apparent sex bias in migration among juveniles. (7) Thus, in the study area in the southern Yukon female deer mice determine juvenile recruitment, and males are uniportant in population regulation.
650 $aanimal ecology
650 $aPeromyscus maniculatus
650 $apopulation
650 $aEcologia Animal
650 $aPopulação
650 $aRoedor
653 $aDeer mice
653 $aRodent
700 1 $aKREBS, C. J.
773 $tJournal of Animal Ecology$gv.56, n.1, p.11-23, 1987.
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Registro original: |
Embrapa Pantanal (CPAP) |
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