Influence of field technique, density, and sex on home range and overlap of the southern red-backed vole (Myodes gapperi)

Home range is shaped by an individual’s interactions with the environment and conspecifics, and both size and placement may vary in response to population fluctuations. The method used to collect locational data may also affect home-range estimates. We examined the effect of density, sex, and field method on home range of southern red-backed voles (Myodes gapperi (Vigors, 1830)) inhabiting eastern hemlock (Tsuga canadensis (L.) Carrière) forests. Twelve mark–recapture grids were used to census M. gapperi from 2014 to 2017. In 2017, individuals were radio-collared. Home-range size, core-area size, and shared space were calculated using kernel density estimators from both mark–recapture and radiotelemetry data. Density effects on home range and core area were analyzed and differences between sex and field method were compared. We found (i) density did not affect home-range size, (ii) male home range was larger than female home range, (iii) females shared space more frequently and to a greater extent with males than other females, and (iv) home-range estimates were not significantly different between mark–recapture and radiotelemetry. Male home range, however, was larger under radiotelemetry and may reflect a truncation effect when mark–recapture grid size is smaller than male home range.

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Home-range size of northern flickers (Colaptes auratus) in relation to habitat and parental attributes

Canadian Journal of Zoology ◽

10.1139/z03-077 ◽

2003 ◽

Vol 81 (6) ◽

pp. 954-961 ◽

Cited By ~ 24

Author(s):

C L Elchuk ◽

K L Wiebe

Keyword(s):

Home Range ◽

Vegetation Type ◽

Ground Cover ◽

Spatial Arrangement ◽

Home Range Size ◽

Range Size ◽

Core Area ◽

Nest Density ◽

Home Ranges ◽

Colaptes Auratus

Energetic requirements during the breeding season and environmental factors such as food abundance and habitat quality may influence spatial use of the landscape by adult birds. We determined home-range and core-area sizes for 52 adult northern flickers (Colaptes auratus) during the brood-rearing period in 1999 and 2000 in British Columbia. We examined the relationship between home-range size and correlates of energetic demands (age, sex, body size, brood size, nest density, laying attempt). We also examined the association between vegetation type at the landscape scale and ground-cover characteristics at the foraging scale with home-range size, core-area size, and maximum distance flown from the nest to forage. Mean home-range size was 25 ha, with a mean core area of 7 ha. Home-range size was positively related to laying attempt and nearest neighbour distance. No significant relationships were found at the landscape level between vegetation type and home-range size or between ground-cover characteristics and core-area size. However, flickers flew farther to forage in home ranges with tall vegetation and bare ground. Home-range size of flickers may be related to both energetic demands on the adults and on the spatial arrangement of quality foraging patches around the nest site.

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Home range size and habitat use of the blue-crowned laughingthrush during the breeding season

PeerJ ◽

10.7717/peerj.8785 ◽

2020 ◽

Vol 8 ◽

pp. e8785

Author(s):

Tao Liu ◽

Yongtao Xu ◽

Bai Mo ◽

Jinze Shi ◽

Yachang Cheng ◽

...

Keyword(s):

Home Range ◽

Habitat Use ◽

Breeding Season ◽

Bird Species ◽

Home Range Size ◽

Range Size ◽

Core Area ◽

Breeding Period ◽

Density Estimator ◽

Breeding Sites

The home range size and habitat use of the blue-crowned laughingthrush (Garrulax courtoisi, hereafter BCLT), a critically endangered, subtropical, cooperative-breeding bird species in southeast China, were studied during its breeding period using radio telemetry at different sites during 3 consecutive years (2016–18, from May to June of each year). A total of 17 birds (12 males, four females, and one of unknown sex) were tagged, and a total 1515 locations (mean ± se = 89.12 ± 11.42) were obtained over 54 days of tracking. The average 100% minimum convex polygon (MCP) home range size was 10.05 ± 1.17 ha, and the estimated KDE core area (fiexed kernel density estimator, KDE) size was 7.84 ± 1.18 ha. According to the Wilcoxon rank sum tests, both the 100% MCP and KDE core area size of males did not significantly differ from those of females. There were no significant differences in the 100% MCP or KDE core area sizes of the three breeding sites. The available habitats in the breeding sites included water areas, shrubs, grass plots, woodland, residential areas, vegetable field, farmland, and sandy beaches; among them, only woodland was significantly preferred by BCLTs. Woodland (average use ratio was 45.86 ± 1.74%) was strongly preferred by BCLTs for nesting, foraging and roosting. Shrubs/grass plots (24.72 ± 3.39%) and vegetable plots (11.80 ± 1.83%) were used relatively more often than the other habitats, except woodland, since shrubs were always used as perches, and vegetable plots were rich in food resources. Vertically, the canopy layer was used most often from April to June, but it was used most in May when the birds were hatching and brooding. This result indicates that BCLT is predominantly active in the upper strata during the breeding season. In addition, broadleaved trees within or adjacent to villages were important activity areas for the breeding birds; protection and management measures should be increased in these areas.

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Home range size, utilization and spatial organization of Pine Martens in Bial'owieza National Park, Poland

Mammal Review ◽

10.1046/j.1365-2907.2000.0075l.x ◽

2000 ◽

Vol 30 (3-4) ◽

pp. 232-232

Author(s):

A. Zalewski ◽

W. Jedrzejewski

Keyword(s):

Home Range ◽

National Park ◽

Spatial Organization ◽

Home Range Size ◽

Range Size ◽

Pine Martens

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Foraging Habitat, Home-Range Size and Diet of a Mediterranean Bat Species, Savi's Pipistrelle

Acta Chiropterologica ◽

10.3161/15081109acc2018.20.2.007 ◽

2019 ◽

Vol 20 (2) ◽

pp. 351

Author(s):

Marina Kipson ◽

Martin Šálek ◽

Radek Lučan ◽

Marcel Uhrin ◽

Edita Maxinová ◽

...

Keyword(s):

Home Range ◽

Home Range Size ◽

Range Size ◽

Foraging Habitat

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Green morays (Gymnothorax funebris) have sedentary ways in mangrove bays, but also ontogenetic forays to reef enclaves

Environmental Biology of Fishes ◽

10.1007/s10641-021-01137-0 ◽

2021 ◽

Author(s):

Matthew S. Kendall ◽

Laughlin Siceloff ◽

Ashley Ruffo ◽

Arliss Winship ◽

Mark E. Monaco

Keyword(s):

Home Range ◽

Site Fidelity ◽

Home Range Size ◽

Range Size ◽

Caribbean Region ◽

History Of ◽

High Site ◽

Single Night ◽

Exploratory Movements ◽

Moray Eel

AbstractSurprisingly, little is known about basic life history of the largest moray eel species in the Caribbean region, the green moray eel (Gymnothorax funebris). Sixteen eels were captured from the mangrove fringe in multiple bays on St. Croix, USVI, implanted with coded acoustic transmitters, and their movements were tracked for up to 11 months using an array of 37 stationary acoustic receivers. They exhibited high site fidelity in the bays during their residence, using the same general parts of individual bays and did not switch bays except for one individual. There was no relationship between eel size (mean TL = 83 cm, range = 54–126 cm) and home range size (mean area of 95% KUD = 5.8 ha ± 0.7 SE). Most individuals were more frequently detected at night than during the day suggesting greater nocturnal activity. Several of the larger eels (mean TL = 93 cm ± 5.9 SE) showed clear and permanent emigration tracks out of the mangrove estuary to coral reef habitats offshore. For some individuals, these habitat shifts were preceded by exploratory movements away from the eel’s typical home range the night before emigration. All final emigration events took place nocturnally, happened during a single night, and occurred during months from December to May. Mean emigration speed was 3.4 km/h. This study is the first documentation of an ontogenetic habitat shift in moray eels, as well as the first determination of home range size for this species and their site fidelity in mangrove habitats.

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