Results 241 to 250 of about 2,427,133 (295)

Primate home-range size and metabolic needs

Behavioral Ecology and Sociobiology, 1981
We test the hypothesis that cross-species variation in home range size across primates is determined by the metabolic needs of the animals occupying the home range and by their diet. Metabolic needs are calculated from published records of group structure, time spent in different activities and the metabolic costs of those activities.
Paul H. Harvey, T. H. Clutton-Brock
exaly   +2 more sources

Home-Range Size in Relation to Age and Sex in Moose

Journal of Mammalogy, 1994
During 1983–1989, 49 moose ( Alces alces ) were monitored in central Sweden to estimate annual and seasonal home ranges. Males had larger annual home ranges (25.9 km2 ± 3.3 SE ) than did females (13.7 km2 ± 2.2 SE, P 0.05), except females without young ( P < 0.05).
Håkan Sand
exaly   +2 more sources

An Index of Home Range Size

The Journal of Wildlife Management, 1974
The relationship between the number of times an animal is captured c and the number of grid stations at which it has been captured So is represented by the function Sc = S. (1-e-kc). In such cases it is possible to compute an index of home range size S.
Lee H. Metzgar, Andrew L. Sheldon
openaire   +1 more source

Energetic Constraints on Home-Range Size

The American Naturalist, 1983
McNab (1963) plotted home-range size (HR) against body weight (BW) for a variety of mammal species, and concluded that home-range size was determined by an animal's energetic needs and by the density of available food. Using a regression model, he fitted an allometric relationship of the form HR = a * BWb.
Georgina M. Mace, Paul H. Harvey
openaire   +1 more source

Home Ranges and Body Size of Lizards

Ecology, 1969
The relationship between home range, A (m2) and body weight, W (g) among adults of 13 species of terrestrial lizards was estimated as: A = 171.4W0.95. The slope of the logarithmic regression is steeper than that relating standard metabolic rate, M (cm3 O2/hr) at 30°C and body weight: M = 0.82W0.62.
Frederick B. Turner, Robert I. Jennrich, Joel D. Weintraub   +2 more
openaire   +1 more source

Home Range Estimates Vary with Sample Size and Methods

Folia Primatologica, 2008
Accurate estimates of a primate’s home range are important, yet methods vary greatly. This paper examines the accuracy of minimum convex polygon (MCP), adaptive kernel (AK) and fixed kernel (FK) estimators by comparing home range estimates of northern bearded saki monkeys (Chiropotes satanas chiropotes) living in forest fragments and continuous forest ...
Boyle, Sarah Ann, Lourenço, Waldete C., Silva, Lívia Rodrigues da, Smith, Andrew T.   +3 more
openaire   +3 more sources

Home range size and population dynamic

Journal of Theoretical Biology, 1978
Abstract A relationship between home range size and population density is developed. Dynamics of the adjustment of home range size to equilibrium are considered for two cases. When the equilibrial size is constant, actual home range size approaches the equilibrial value in an exponential fashion.
openaire   +2 more sources

Measurement of Territory and Home Range Size in Birds

The Auk, 1955
At some time during the annual cycle, most vertebrates restrict their activities to a definite area which may be termed the home range. If all or part of the home range is defended against other individuals of the same species, the guarded area is called a territory, according to current usage.
Odum, Eugene P., Kuenzler, Edward J.
openaire   +1 more source

Home-Range Size of Coyotes: A Critical Review

The Journal of Wildlife Management, 1984
Revue des methodes utilisees pour collecter et analyser les donnees sur l'aire de deplacement et presentation de criteres de controle de la validite des donnees existantes.
John W. Laundre, Barry L. Keller
openaire   +1 more source

Home Range, Time, and Body Size in Mammals

Ecology, 1986
The relationship between home range area and body size of terrestrial mammals is reconsidered in light of the concept of biological time. Biological time is an internal, body—mass—dependent, time scale to which the durations (of rates) of biological events are entrained.
Stan L. Lindstedt, Brian J. Miller, Steven W. Buskirk   +2 more
openaire   +1 more source