Spatial patterning in nocturnal prosimians: A review of methods and relevance to studies of sociality

Sterling, Eleanor J.; Nguyen, Nga; Fashing, Peter J.

doi:10.1002/(sici)1098-2345(200005)51:1<3::aid-ajp2>3.0.co;2-d

Cited by 86 publications

(24 citation statements)

References 52 publications

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“…Moreover, the decision of setting a grid cell size shall be based on the average (or median) distance between consecutive locations (White and Garrott 1990), and -in case of application of GPS -also take into consideration satellite reception and associated It is beyond the scope of this methodological discourse to examine other relatively complex techniques such as Fourier series and fractal estimators in more detail (for more exhaustive reviews see e.g. (Harris et al 1990, White and Garrott 1990, Powell 2000, Sterling et al 2000, Kernohan et al 2001. Recently, Kernel methods have become increasingly widespread in primate/animal ecology and are considered rather powerful (given that some underlying assumption such as independence of locational observations are met), e.g.…”

Section: Discussionmentioning

confidence: 99%

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Choice of analytical method can have dramatic effects on primate home range estimates

et al. 2008

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(2008Here, we propose an adjusted polygon method, whereby unsuitable and never visited areas are clipped out from the polygon, thus producing more accurate results. Compared to the grid cell method, the adjusted MCP is much more robust when the number of group relocations is limited; MCP turned out to be the method of choice for calculation of monthly and seasonal home ranges. The grid cell method on the other hand yielded the most precise estimates for total or annual home ranges. The style of ranging exhibited by a given primate taxon or population determines which analytical procedures should be applied to estimate home range size, and we would stress the need for thorough evaluation of the pros and cons of home range estimators before conducting field work and analysing data. yielded the most precise estimates for total or annual home ranges. The style of ranging a given primate taxon or population exhibits determines which analytical procedures shall be applied to estimate home range size, and we urge for a more thorough evaluation of pros and cons of home range estimators before conducting field work and analyzing data. Choice of an Analytical Method Can Have Dramatic Effects on Primate Home

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Section: Discussionmentioning

confidence: 99%

“…The grid cell method often produces underestimates of range sizes, e.g. (Sterling et al 2000). On the other hand, the grid cell method may also overestimate home range size because it is highly affected by the size of the grid squares employed, e.g.…”

Section: Introductionmentioning

confidence: 99%

Choice of analytical method can have dramatic effects on primate home range estimates

et al. 2008

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“…I triangulated the positions of the individuals later via Ktrail (Kelinski, unpublished computer programme) and analyzed the home ranges via Tracker (Camponotus AB, Solna, Sweden) via the minimum convex polygon technique (Sterling et al 2000) and calculating the monthly home range sizes with ≥30 positions. I located the sleeping sites of the radiocollared Cheirogaleus major on a total of 54 d between 0800 and 1000 h and determined the sleeping group composition via radiotracking and observation, distinguishing between sleeping alone, in a group, or unknown.…”

Section: Telemetry and Observationmentioning

confidence: 99%

Biology of Cheirogaleus major in a Littoral Rain Forest in Southeast Madagascar

Lahann

2007

Int J Primatol

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Greater dwarf lemurs (Cheirogaleus major) are small nocturnal primates from the rain forests of eastern Madagascar. I investigated a population of Cheirogaleus major in a littoral rain forest of Southeast Madagascar during 2 rainy seasons to supplement the sparse information available for the species. I collected data on morphology, group composition, sleeping behavior, home range, and social organization via mark/recapture, radio telemetry, and focal individual observations. I identified 2 presumed family groups, and my data from radiotracking revealed a monogamous social organization. In each group, I found an adult pair and its presumed offspring sharing home ranges and sleeping sites together. I also observed gregarious behavior of group members during their nocturnal activity. I found no difference in body measurements between sexes, but body mass and tail circumference increased significantly from November to February, indicating a fatting period before hibernating.

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“…The methodological divergence might cause problems in the comparison of different studies. A test of many home ranges using different sized grids is needed as it is well established that the GC method often underestimates (Sterling et al 2000;Grueter et al 2009) Only one study estimates the home range size and its seasonal changes using the nationwide equal four seasons . However, the seasonal home range changes found using the four season-model might not represent the real patterns of home range use in R. bieti.…”

Section: Introductionmentioning

confidence: 99%

Home range and seasonality of Yunnan snub‐nosed monkeys

Bao-ping

Long³

et al. 2009

Integrative Zoology

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Home range studies are essential for understanding an animal's behavioral ecology and for making wildlife conservation efficient. The home range of a group of Yunnan snub-nosed monkeys (Rhinopithecus bieti MilneEdwards, 1897) was estimated using a global positioning system collar from December 2003 to October 2004 in northern Yunnan Province, China. To measure the ranging area of the study group 1291 animal locations were fixed. Based on the 100% minimum convex polygon method, the home range size was approximately 32.8 km 2 ; based on the grid-cell method it was approximately 17.8 km 2 using a 250-m grid and 23.3 km 2 using a 500-m grid. We assessed seasonal changes in the home range of this monkey population and found a different ranging pattern of from earlier studies. Daily range size was calculated as 4.80 ± 5.81 ha (mean ± standard deviation), with a range of 45.66 ha (0.01-45.67 ha).

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Spatial patterning in nocturnal prosimians: A review of methods and relevance to studies of sociality

Cited by 86 publications

References 52 publications

Choice of analytical method can have dramatic effects on primate home range estimates

Choice of analytical method can have dramatic effects on primate home range estimates

Biology of Cheirogaleus major in a Littoral Rain Forest in Southeast Madagascar

Home range and seasonality of Yunnan snub‐nosed monkeys

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