Spatial organization of Molina’s hog-nosed skunk (Conepatus chinga) in two landscapes of the Pampas grassland of Argentina

2011 ◽  
Vol 89 (3) ◽  
pp. 229-238 ◽  
Author(s):  
D. F. Castillo ◽  
M. Lucherini ◽  
E. M. Luengos Vidal ◽  
C. Manfredi ◽  
E. B. Casanave
Keyword(s):  
Home Range ◽  
Protected Area ◽  
Spatial Organization ◽  
Home Range Size ◽  
Range Size ◽  
Cropland Area ◽  
Movement Rates ◽  
Resting Sites ◽  
Range Dynamics ◽  
Ecosystem State

We radio-tracked 16 individuals (6 males, 10 females) of the little known Molina’s hog-nosed skunk ( Conepatus chinga (Molina, 1782)) and compared home-range dynamics, movement rates, and densities between a protected area and a landscape fragmented by agriculture. The mean home-range size (95% fixed kernel) was 166.7 ha (SD = 107.5 ha), without significant differences between areas. Home-range size varied significantly between males (mean = 243.7 ha, SD = 76.5 ha) and females (mean = 120.4 ha, SD =77.6 ha). Overlap between home range and core area was extensive between and within sexes in the protected area and more limited in the cropland area. Mean distance traveled between two consecutive resting sites was 269.5 m (SD = 365 m) and did not differ between areas, although movements were greater for males than females. Distance moved was influenced by seasons, being greater during the cold period. Finally, density estimates were consistently greater at the protected area. We argue that home-range size in Molina’s hog-nosed skunks is an inherent species property, whereas population density and territoriality are more flexible parameters that could reflect how the ecosystem state was affected. In our study, the greater dispersion of food patches in the cropland area than in the protected area may be the major factor influencing these parameters.

scholarly journals White-lipped peccary home-range size in a protected area and farmland in the central Brazilian grasslands

2013 ◽  
Vol 94 (1) ◽  
pp. 137-145 ◽  
Author(s):  
Anah Tereza de Almeida Jácomo ◽  
Mariana Malzoni Furtado ◽  
Cyntia Kayo Kashivakura ◽  
Jader Marinho-Filho ◽  
Rahel Sollmann ◽  
...  
Keyword(s):  
Home Range ◽  
Protected Area ◽  
Home Range Size ◽  
Range Size

scholarly journals Home-range size and spatial organization of black-footed ferrets Mustela nigripes in South Dakota, USA

2010 ◽  
Vol 16 (1) ◽  
pp. 66-76 ◽  
Author(s):  
David S. Jachowski ◽  
Joshua J. Millspaugh ◽  
Dean E. Biggins ◽  
Travis M. Livieri ◽  
Marc R. Matchett
Keyword(s):  
Home Range ◽  
South Dakota ◽  
Spatial Organization ◽  
Home Range Size ◽  
Range Size ◽  
Mustela Nigripes

Home range size adjustments by the eastern chipmunk, Tamias striatus, in response to natural and manipulated water availability

1990 ◽  
Vol 68 (9) ◽  
pp. 2016-2020 ◽  
Author(s):  
Michael A. Bowers ◽  
David N. Welch ◽  
Timothy G. Carr
Keyword(s):  
Home Range ◽  
Water Availability ◽  
Spatial Organization ◽  
Free Water ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Drought Period ◽  
Tamias Striatus ◽  
Early Fall

Capture–recapture techniques were used to study the spatial organization of a population of eastern chipmunks, Tamias striatus, over 16 weeks of an uncharacteristically dry summer and early fall. The objective was to examine the role of free water as a factor influencing home range size. Home range size was estimated for time periods of 1, 3, and 5 weeks. For animals captured more than two times, home range size estimates were not significantly correlated with the number of captures or body weight, nor did home ranges differ between males and females. Home ranges were relatively large in early summer, small in mid- to late-summer, and large again in the early fall. Home ranges were significantly smaller during the 8 weeks of greater-than-median precipitation than during weeks of less-than-median precipitation. Home ranges of 8 individuals out of 12 increased in size during a 3-week drought period relative to their pre- and post-drought home ranges. Differences in home range size between drought and nondrought periods were more pronounced for males than females. Comparison of home range size before and after the provision of supplemental drinking water showed that where water was added, chipmunks reduced the size of their home ranges significantly more than control (unwatered) chipmunks. These results identity water availability during certain years and seasons as a factor influencing home range size.

scholarly journals Factors Affecting Home Ranges of Red Foxes in Ikh Nart Nature Reserve, Mongolia

2012 ◽  
Vol 10 (1-2) ◽  
pp. 51-58
Author(s):  
Tserendorj Munkhzul ◽  
◽  
Bayarbaatar Buuveibaatar ◽  
James D. Murdoch ◽  
Richard P. Reading ◽  
...  
Keyword(s):  
Home Range ◽  
Nature Reserve ◽  
Radio Telemetry ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Red Foxes ◽  
Factors Affecting ◽  
Intrinsic Factors ◽  
Range Dynamics

Changes in red fox home range size in relation to environmental and intrinsic factors were studied using radio-telemetry during 2006–2008 in Ikh Nart Nature Reserve, southeastern Mongolia. We captured a total of 12 red foxes (8 females and 4 males) and fi tted them with VHF radio-collars. Marked animals were tracked up to fi ve times a week to estimate home ranges. We also trapped small mammal and insects in different biotopes for 3 years to estimate relative abundance of prey. Our results showed that mean individual home range sizes varied widely and differed among years. There was variation in home ranges between adults versus juveniles, but no signifi cant difference was found between males versus females. In addition, mean home range size did not differ seasonally for pooled years. Variation in home ranges was best explained by a model that included covariates of year and age. We suggest that spatiotemporal changes in resource availability across years infl uenced home range dynamics of red foxes in our study.

Spatial-Organization and Movement Patterns of Adult Male Platypus, Ornithorhynchus-Anatinus (Monotremata, Ornithorhynchidae)

1995 ◽  
Vol 43 (1) ◽  
pp. 91 ◽  
Author(s):  
JL Gardner ◽  
M Serena
Keyword(s):  
Home Range ◽  
Adult Male ◽  
Spatial Organization ◽  
Movement Patterns ◽  
Home Range Size ◽  
Range Size ◽  
Activity Period ◽  
Home Ranges ◽  
Ornithorhynchus Anatinus ◽  
Different Parts

Home-range size and overlap and movement patterns of adult male platypus, Ornithorhynchus anatinus, occupying streams in southern Victoria were investigated near the start of the breeding season using radio-tracking techniques. On the basis of a sample of males monitored for four or more complete activity periods, home-range size varied from 2.9 to 7.0 km, with individuals (n = 4) moving a mean net distance of 2.0 +/- 1.4 km per activity period. Longer-range movements were also observed, with one male travelling at least 15 km from one stream catchment to another via an intervening stretch of river. Some home ranges of males were mutually exclusive whereas others overlapped substantially; in the latter case, males largely avoided each other, spending most of their time in different parts of the shared area. All home ranges of males apparently overlapped those of two or more adult females. Three patterns of travel over complete activity periods were recognised, including unidirectional travel (point A to B), return travel (A to B to A) and multidirectional travel with multiple, relatively short-range backtracking. Males occupying overlapping areas often moved multidirectionally and rarely undertook unidirectional travel, whereas the converse applied to males occupying exclusive areas.

scholarly journals Home Ranges and Spatial Organization of Fishers, Martes pennanti, in Central British Columbia

2009 ◽  
Vol 123 (2) ◽  
pp. 126 ◽  
Author(s):  
Richard D. Weir ◽  
Alton S. Harestad ◽  
Fraser B. Corbould
Keyword(s):  
British Columbia ◽  
Home Range ◽  
Spatial Organization ◽  
Home Range Size ◽  
Range Size ◽  
Suitable Habitat ◽  
Home Ranges ◽  
Martes Pennanti ◽  
Utilization Distribution ◽  
Minimum Convex Polygon

We described the size and spatial arrangement of aggregate and seasonal home ranges for 17 radio-tagged resident Fishers (Martes pennanti) that were >1.5 years old in two areas of central British Columbia during 1990-1993 and 1996-2000. We estimated home range size for each Fisher from the 95% isopleth of the utilization distribution generated using a fixed kernel model with smoothing selected by least-squares cross-validation (95% FK). For comparison to previous studies, we also calculated the minimum convex polygon estimate of home range size (MCP) for each animal. The aggregate home ranges (95% FK) of female Fishers (mean = 37.9 km², SD = 18.5, range = 10.5 – 81.2, n = 11) were significantly smaller than those of males (mean = 161.3 km², SD = 100.0, range = 46.0 – 225.2, n = 3; P = 0.019). We observed minor overlap among 95% FK home ranges of Fishers of the same sex, but considerable overlap among home ranges of males and females. Home ranges (95% FK or MCP) that we observed in central British Columbia were larger than those reported elsewhere in North America, particularly for males. We suggest that the distribution of resources for Fishers may occur at lower gross densitiesin central British Columbia than in other portions of the Fisher’s range and that suitable habitat in which Fishers can establish home ranges is not found uniformly across the landscape.

Socio-spatial organization and spatial ecology

2017 ◽  
Author(s):  
M.G.L. Mills ◽  
M.E.J. Mills
Keyword(s):  
Home Range ◽  
Spatial Ecology ◽  
Spatial Organization ◽  
Scent Marking ◽  
Home Range Size ◽  
Dispersal Distance ◽  
Range Size ◽  
Home Ranges ◽  
Large Home Range ◽  
Core Areas

Home ranges of males (1204 km2) and females (1510 km2) were similar. Female home range size was positively related to the dispersion of prey and generally, but not exclusively, they displayed home range fidelity. Overlap between female home ranges was extensive, although they rarely met up. Male home ranges overlapped extensively and there was no difference in size between coalition and single males. Males overcame the problem of scent marking a large home range by concentrating scent marks in core areas. Generally female cheetah home range size is affected by resource productivity, although where prey are migratory, or in fenced reserves where movements are constricted, and areas where disturbance is severe, this may be different. Southern Kalahari males apparently need large home ranges to increase the likelihood of locating wide-ranging and sporadically receptive females. Mean dispersal distance for subadult males (96 km) was further than for females (39 km).

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