Comparison of Some Statistical Techniques for Analysis of Resource Selection

Alldredge, J. Richard; Ratti, John T.

doi:10.2307/3801507

Cited by 259 publications

(117 citation statements)

References 36 publications

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“…Data were pooled to maintain sufficient sample size, unless otherwise noted (Alldredge and Ratti 1986;Thomas and Taylor 1990). Home range sizes were compared between years using the Mann-Whitney Utest.…”

Section: Statistical Analysesmentioning

confidence: 99%

Wild Turkey, <em>Meleagris gallopavo silvestris</em>, Behavior in Central Ontario During Winter

2004

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Home range size, food habits, and roost site selection are described for the Eastern Wild Turkey (Meleagris gallopavo silvestris) introduced on the Precambrian Shield in central Ontario during the winters 1999 and 2000. Monthly home range size was correlated primarily to snow depth, although it was also likely associated to other factors, including food availability and/or roost site availability. Ferns and allies were used more than available, whereas monocots were used less than expected. Roost site-selection was primarily influenced by tree height. If the Eastern Wild Turkey is to expand its northern range in Ontario, winter food and roost site availability may be the primary determinants for successful introductions.

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Section: Statistical Analysesmentioning

confidence: 99%

Wild Turkey, <em>Meleagris gallopavo silvestris</em>, Behavior in Central Ontario During Winter

2004

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“…Neu's test (similar to Friedman's test) examines non-independent variables such as preferences and avoidances, and gives the lowest Type II error rates based on our experimental design (Alldredge & Ratti 1986, 1992. To examine differences in preference or avoidance of an alga among locations, we calculated and compared proportional selectivity indices (see next subsection).…”

Section: Methodsmentioning

confidence: 99%

Geographic variation in decoration selectivity of Micippa platipes and Tiarinia cornigera in Japan

Hultgren

Thanh²,

Sato³

2006

Mar. Ecol. Prog. Ser.

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Relatively few studies have compared behavioral variation of more than one species among different locations; yet examining geographic variation in behavior in a comparative context is crucial to help elucidate the generality of geographic patterns. We studied geographic variation in decoration preferences for 2 spider crabs (Brachyura: Majoidea), Micippa platipes and Tiarinia cornigera, which co-occur in intertidal areas along the coast of Japan. Both M. platipes and T. cornigera primarily feed on algae and use them for 'decoration' (i.e. attach them to hooked setae on their carapace). We tested whether individuals from 3 locations along the east coast of Japan differed in their decoration and consumption selectivity for certain algae in the field, and also tested decoration and consumption preferences of M. platipes in laboratory assays. At the 2 more northern locations, both species showed little selectivity among algae, primarily using them for decoration in proportion to their abundance. Conversely, at the southern location, M. platipes exhibited strong preferences for the alga Hypnea pannosa in both field and laboratory assays, and both crab species strongly avoided the alga Corallina pilulifera. Using both an overall selectivity index (SE o ) and a proportional selectivity index (PSE) calculated for each alga, we compared algal use by the crabs vs. algal availability at the 3 locations. Both indices indicated that both species were more selective (had stronger preferences or avoidances of available algae) at the southern location than at the 2 more northern locations. Potential factors driving this latitudinal gradient in selectivity include seasonal and geographic variability in both decoration availability and crab decoration preferences.

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“…In this analysis, the use of the river and streams was considered simultaneously, to avoid the problem of dependence when the proportional use of a habitat type is treated separately (Aebischer and Robertson 1992). Chi-square analysis was used to test for goodness-of-fit (Neu et al 1974, Alldredge andRatti 1986).…”

Section: Radio-trackingmentioning

confidence: 99%

Individual differences in spatial utilization of a river-system by otters Lutra lutra

Durbin¹

1996

Acta Theriol.

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L. S. 1996. Individual differences in spatial utilization of a river-system by otters Lutra lutra. Acta Theriologica 41: 137-147.One female and 2 male otters Lutra lutra (Linnaeus, 1758) were radio-tracked in the River Don catchment, Aberdeenshire, Scotland, between April 1988 and June 1990, and their range use patterns were compared. The males had longer total ranges than the female. The range of the larger male almost completely overlapped with that of the female, but the range of the smaller male was mainly separate from that of the female. The ranges of the 2 males only partially overlapped, with the larger male having the greatest total range, nightly range and rate of travel, and the lowest tendency to revisit areas during the night. The smaller male was relatively sedentary, using two separate core areas, whereas the other 2 otters had single core areas and frequently patrolled their total ranges. As the larger male was sexually active, but the smaller one did not appear to be, it was argued that the need to search for mates could explain some of these differences in spatial patterns. All 3 otters used tributaries more than expected based on the areas within their total ranges. This may be because riparian margins were used in greater proportion than central areas of the channel width.

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Comparison of Some Statistical Techniques for Analysis of Resource Selection

Cited by 259 publications

References 36 publications

Wild Turkey, <em>Meleagris gallopavo silvestris</em>, Behavior in Central Ontario During Winter

Wild Turkey, <em>Meleagris gallopavo silvestris</em>, Behavior in Central Ontario During Winter

Geographic variation in decoration selectivity of Micippa platipes and Tiarinia cornigera in Japan

Individual differences in spatial utilization of a river-system by otters Lutra lutra

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