Results 261 to 270 of about 2,427,133 (295)

Carnivore home-range size, metabolic needs and ecology

Behavioral Ecology and Sociobiology, 1982
Relationships between home-range size, metabolic needs of the animals occupying the homerange, and ecology are examined across species in the order Carnivora. Home-range size increases with metabolic needs, irrespective of taxonomic affinity. When the effects of metabolic needs are removed, among ecological variables (including activity pattern ...
John L. Gittleman, Paul H. Harvey
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Sex Drives Intraspecific Scaling of Home Range Size in Mammals

Ecology Letters
ABSTRACT Understanding variation in home range size (HR) provides important insights into the underlying ecological processes driving space use. However, it remains unclear whether the interspecific allometric scaling of mammals' HR can also be consistently observed within species and for both sexes.
Aline Giroux, Denis Valle, Eliezer Gurarie, Marcus Vinicius Vieira, James D. Forester, Luca Börger, Raissa Sepulvida, Nicole Barbour, Erika G. da Rocha, Julia Oshima, Fernanda C. de Azevedo, Frederico G. Lemos, Bernardo B. Niebuhr, Rogerio de Paula, Caio Filipe M. Lima, Guilherme Mourão, Nina Attias, Marina Favarini, Felipe B. Peters, Arnaud Desbiez, Maria Luisa S. P. Jorge, Milton Ribeiro, Alexine Keuroghlian, Isis Z. das Candeias, Carlos André Zucco, Walfrido M. Tomas, Sandra M. C. Cavalcanti, Ermeson A. Vilalba, Vanessa V. Alberico, Marcos Adriano Tortato, Ricardo L. P. Boulhosa, Flavia Fiori, Pedro Henrique F. Peres, Francisco Grotta‐Neto, Ubiratan Piovezan, José Maurício B. Duarte, Luiz Gustavo R. Oliveira‐Santos   +36 more
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Influence of Sampling Interval on Estimates of Home-Range Size

The Journal of Wildlife Management, 1985
Accurate estimation of home-range size often requires large numbers of observations. Radiotelemetry and direct observation are capable of yielding large sample sizes in a short period of time, but observations collected using a short sampling interval often are autocorrelated (i.e., not independent).
Robert K. Swihart, Norman A. Slade
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Effects of Sample Size on Kernel Home Range Estimates

The Journal of Wildlife Management, 1999
Kernel methods for estimating home range are being used increasingly in wildlife research, but the effect of sample size on their accuracy is not known. We used computer simulations of 10-200 points/ home range and compared accuracy of home range estimates produced by fixed and adaptive kernels with the reference (REF) and least-squares cross ...
D. Erran Seaman, Joshua J. Millspaugh, Brian J. Kernohan, Gary C. Brundige, Kenneth J. Raedeke, Robert A. Gitzen   +5 more
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Home-Range Size as a Predictor of Mating Systems in Microtus

Journal of Mammalogy, 1988
Breeding populations of Microtus pennsylvanicus and M. ochrogaster were studied for approximately 4 weeks each in central Pennsylvania and south-central Illinois, respectively. Identical radio-telemetric and live-trapping techniques were combined in each study to examine the possible causes of interspecific and intraspecific variation in range size. M.
S. J. C. Gaulin, R. W. FitzGerald
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Home‐range size in large‐bodied carnivores as a model for predicting neandertal territory size

Evolutionary Anthropology: Issues, News, and Reviews, 2016
Adult human foragers expend roughly 30–60 kcal per km in unburdened walking at optimal speeds.1,2 In the context of foraging rounds and residential moves, they may routinely travel distances of 50–70 km per week, often while carrying loads.3 Movement on the landscape, then, is arguably the single most expensive item in the activity budgets of hunter ...
Steven Emilio, Churchill, Christopher Scott, Walker, Adam Michael, Schwartz   +2 more
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DISPERSAL DISTANCE OF MAMMALS IS PROPORTIONAL TO HOME RANGE SIZE

Ecology, 2002
We tested the prediction that home range area and dispersal distance in mammals are related when considered independently of body size. Regression of log- transformed data demonstrated that more variance in maximum dispersal distance could be explained by home range area (74%) than could be explained by body size (50%). The relationship between maximum
Jeff Bowman, Jochen A. G. Jaeger, Lenore Fahrig   +2 more
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Relation between Home Range Size and Regulation of Population Size in Microtus ochrogaster

Oikos, 1980
Home range size was estimated in two non-cycling populations of Microtus ochrogaster (Wagner) in Northeastern Colorado. Home range length was linearly and negatively correlated with population densities, and positively correlated with the instantaneous rate of increase of both studied populations.
Zvika Abramsky, C. R. Tracy
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Home range size of willow tits: a response to winter habitat loss

Oecologia, 2003
We examined the behavioral response to habitat loss and fragmentation of willow tits (Parus montanus) in winter in a mosaic forest landscape in northern Finland. We studied habitat preference, flock size and home range size of 16 flocks, half of which had their territories in forests fragmented by forestry and half in continuous forest.
Claudia, Siffczyk, Lluís, Brotons, Katja, Kangas, Markku, Orell   +3 more
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Reproductive Synchrony and Home Range Size in a Territorial Microtine

Oikos, 1989
The degree of reproductive synchrony between neighboring females was examined within a natural population of meadow voles, Microtus pennsylvanicus. Females of this species are territorial, with oscillations in home range size dependent on lactational state. Home range oscillations were observed for 57 females who were radiotracked during the successful
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