Habitat Use by Insular Populations of Mus and Peromyscus: What is the Role of Competition?

10.2307/5325 ◽  
1992 ◽  
Vol 61 (2) ◽  
pp. 329 ◽  
Author(s):  
David E. Scott ◽  
Raymond D. Dueser
Keyword(s):  
Habitat Use ◽  
Insular Populations

Experimental Tests of Optimal Habitat Use in Fish: The Role of Relative Habitat Profitability

Ecology ◽  
1983 ◽  
Vol 64 (6) ◽  
pp. 1525-1539 ◽  
Author(s):  
Earl E. Werner ◽  
Gary G. Mittelbach ◽  
Donald J. Hall ◽  
James F. Gilliam
Keyword(s):  
Habitat Use ◽  
Experimental Tests ◽  
Optimal Habitat

scholarly journals The role of season and social grouping on habitat use by Mute Swans (Cygnus olor) in a lowland river catchment

Bird Study ◽  
2013 ◽  
Vol 60 (2) ◽  
pp. 229-237 ◽  
Author(s):  
Kevin A. Wood ◽  
Richard A. Stillman ◽  
Terry Coombs ◽  
Claire Mcdonald ◽  
Francis Daunt ◽  
...  
Keyword(s):  
Habitat Use ◽  
Lowland River ◽  
River Catchment ◽  
Cygnus Olor ◽  
Social Grouping ◽  
Mute Swans

Differences in growth rate, body condition, habitat use and food availability between island and mainland lizard populations ofAnolis nebulosusin Jalisco, Mexico

2014 ◽  
Vol 30 (5) ◽  
pp. 493-501 ◽  
Author(s):  
Héctor Hugo Siliceo-Cantero ◽  
Andrés García
Keyword(s):  
Growth Rate ◽  
Habitat Use ◽  
Food Availability ◽  
Body Condition ◽  
Food Supply ◽  
Geographic Isolation ◽  
Seasonal Fluctuations ◽  
Continental Population ◽  
Two Populations

Abstract:Lizards of the genusAnolishave been widely studied, however, little is known about the effects of environmental seasonality, food availability and geographic isolation on body condition, growth rate and habitat use of lizards. The existence of an insular and a continental population ofAnolis nebulosus(clouded anole), separated by only 0.47 km, represents an ideal opportunity to address this topic. We compared seasonal fluctuations in food availability (arthropod density) for anoles, as well as body condition, growth rate and habitat use in the two populations. Food availability throughout the year was sampled every 2 mo by trapping arthropods at each site. Lizards were also monitored and measured every 2 mo by surveying three quadrats in each site over 2 y giving a total of 30 visits for each quadrat. Results suggested that composition and density of food supply was similar for the two populations. Nevertheless, food supply responded to seasonality of rainfall, with an increase of 1.5 times during the rainy season. Despite similarity in food availability, insular anoles had body condition that was 5–10 times better, with growth rate twice as fast, and used similar perches. The role of predation, and inter- and intraspecific competition are discussed as possible drivers.

The Role of Foraging Profitability and Experience in Habitat Use by the Bluegill Sunfish

Ecology ◽  
1981 ◽  
Vol 62 (1) ◽  
pp. 116-125 ◽  
Author(s):  
Earl E. Werner ◽  
Gary G. Mittelbach ◽  
Donald J. Hall
Keyword(s):  
Habitat Use ◽  
Bluegill Sunfish

Winter habitat use by female caribou in relation to wildland fires in interior Alaska

2003 ◽  
Vol 81 (7) ◽  
pp. 1192-1201 ◽  
Author(s):  
Kyle Joly ◽  
Bruce W Dale ◽  
William B Collins ◽  
Layne G Adams
Keyword(s):  
Habitat Use ◽  
Rangifer Tarandus ◽  
Wildland Fire ◽  
Very High Frequency ◽  
Winter Habitat ◽  
Spatial And Temporal Scales ◽  
Burned Areas ◽  
Winter Range ◽  
Core Areas

The role of wildland fire in the winter habitat use of caribou (Rangifer tarandus) has long been debated. Fire has been viewed as detrimental to caribou because it destroys the slow-growing climax forage lichens that caribou utilize in winter. Other researchers argued that caribou were not reliant on lichens and that fire may be beneficial, even in the short term. We evaluated the distribution of caribou relative to recent fires (<50 years old) within the current winter range of the Nelchina caribou herd in east-central Alaska. To address issues concerning independence and spatial and temporal scales, we used both conventional very high frequency and global positioning system telemetry to estimate caribou use relative to recent, known-aged burns. In addition, we used two methods to estimate availability of different habitat classes. Caribou used recently burned areas much less than expected, regardless of methodologies used. Moreover, within burns, caribou were more likely to use habitat within 500 m of the burn perimeter than core areas. Methods for determining use and availability did not have large influences on our measures of habitat selectivity.

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