Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Competition between Eurasian red and introduced Eastern grey squirrels: the energetic significance of body-mass differences
Autore:
Bryce, JM; Speakman, JR; Johnson, PJ; Macdonald, DW;
Indirizzi:
Univ Oxford, Dept Zool, Wildlife Conservat Res Unit, Oxford OX1 3PS, England Univ Oxford Oxford England OX1 3PS vat Res Unit, Oxford OX1 3PS, England Univ Aberdeen, Dept Zool, Aberdeen Ctr Energy Regulat & Obes, Aberdeen, Scotland Univ Aberdeen Aberdeen Scotland ergy Regulat & Obes, Aberdeen, Scotland
Titolo Testata:
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
fascicolo: 1477, volume: 268, anno: 2001,
pagine: 1731 - 1736
SICI:
0962-8452(20010822)268:1477<1731:CBERAI>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCIURUS-VULGARIS; FORAGING BEHAVIOR; CONIFER WOODLAND; ACTIVITY BUDGET; CAROLINENSIS; POPULATION; HABITATS; DEMOGRAPHY; ABUNDANCE; PATTERNS;
Keywords:
body mass; conservation; daily energy expenditure; doubly labelled; ater; red squirrel; grey squirrel;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
54
Recensione:
Indirizzi per estratti:
Indirizzo: Bryce, JM Univ Oxford, Dept Zool, Wildlife Conservat Res Unit, S Parks Rd,Oxford OX1 3PS, England Univ Oxford S Parks Rd Oxford England OX1 3PS OX1 3PS, England
Citazione:
J.M. Bryce et al., "Competition between Eurasian red and introduced Eastern grey squirrels: the energetic significance of body-mass differences", P ROY SOC B, 268(1477), 2001, pp. 1731-1736

Abstract

Daily energy expenditure (DEE),vas measured in sympatric populations of red and grey squirrels using the doubly labelled water technique. Grey squirrels had significantly higher DEEs than red squirrels. However, the difference between the species was not separable from the effects of body mass on DEE. The DEEs of both species were in accordance with published allometric predictions incorporating body mass and ambient temperature. The differencesin energetic requirements and social dominance, both consequences of body size, may represent means by which grey squirrels exert more interspecific competition on red squirrels than do conspecifics, potentially driving populations below viable levels in some sites.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 15:06:07