scholarly journals Bandicoots return to Booderee: initial survival, dispersal, home range and habitat preferences of reintroduced southern brown bandicoots (eastern sub species; Isoodon obesulus obesulus)

2018 ◽  
Vol 45 (2) ◽  
pp. 132 ◽  
Author(s):  
N. M. Robinson ◽  
C. I. MacGregor ◽  
B. A. Hradsky ◽  
N. Dexter ◽  
D. B. Lindenmayer
Keyword(s):  
Home Range ◽  
Body Mass ◽  
National Park ◽  
Effective Means ◽  
Habitat Preferences ◽  
Home Range Size ◽  
Suitable Habitat ◽  
Home Ranges ◽  
Vegetation Types ◽  
Eastern Australia

Context Reintroductions can be an effective means of re-establishing locally extinct or declining faunal populations. However, incomplete knowledge of variables influencing survival and establishment can limit successful outcomes. Aim We aimed to examine the factors (e.g. sex, body mass, release order) influencing the survival, dispersal, home range and habitat selection of reintroduced southern brown bandicoots (eastern subspecies; Isoodon obesulus obesulus) into an unfenced, predator-managed environment in south-eastern Australia (Booderee National Park). Methods Over 2 weeks in May 2016, six female and five male bandicoots were wild-caught in state forest and hard released into the park. Release locations were approximately evenly distributed between three primary vegetation types assessed as suitable habitat: heath, woodland and forest. Bandicoots were radio-tracked day and night for 4 weeks from the initial release date. Key results No mortality was detected. Males dispersed more than twice as far as females (male 704 m, female 332 m), but there was no significant sex bias in home range size. At the landscape scale, bandicoots preferentially selected home ranges that contained heath and avoided forest. Within home ranges, heath and woodland were both favoured over forest. Conclusions Post-release dispersal is sex-biased, but more data are required to determine the influence of other predictors such as body mass and release order. Within the release area, bandicoots favoured non-forest vegetation types. Implications Our study outlines factors influencing the establishment of reintroduced bandicoots. We recommend that future bandicoot reintroductions to Booderee National Park occur within areas of heath and woodland, and that subsequent releases consider the potentially larger spatial requirements and conspecific avoidance among male bandicoots. Our findings contribute new knowledge for improving translocation methods of a nationally endangered medium-sized mammal.

Ecology and social biology of the southern three-banded armadillo (Tolypeutes matacus; Cingulata: Chlamyphoridae)

2020 ◽  
Author(s):  
N Attias ◽  
E Gurarie ◽  
W F Fagan ◽  
G Mourão
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Conservation Status ◽  
Species Conservation ◽  
Home Range Size ◽  
Range Size ◽  
Basic Knowledge ◽  
Movement Behavior ◽  
Home Ranges ◽  
Social Biology

Abstract Basic knowledge of species biology and ecology is essential for the assessment of species conservation status and planning for efficient conservation strategies; however, this information is not always readily available. Here we use movement behavior to understand the ecology and social biology of the poorly known southern three-banded armadillo (Tolypeutes matacus). We used VHF and GPS telemetry to monitor 26 individuals from two sites in the Pantanal wetlands of Brazil. We characterized armadillo activity patterns, evaluated the relationship between sex and body mass with home range size and mean daily distance traveled, and examined home and core range overlap. Three-banded armadillos were active on average for 5.5 ± 2.8 h/day, with most of their activity concentrated in the first half of the night. Adult males were heavier and had larger home ranges than adult females. Home range size scaled positively with body mass for males, but not for females. Core ranges for females overlapped little (< 1%) regardless of age, but home ranges for males overlapped both with other males (12%) and females (18%). Our data suggest that three-banded armadillos are mainly a nocturnal species. Home range and spacing patterns point to a generally asocial behavior and a polygynous or promiscuous mating system. We hope that the data generated as a result of this project will contribute to this species’ conservation in Brazil and elsewhere by guiding future management and research efforts.

Movements and Home Ranges of Feral Pigs (Sus Scrofa) in Kosciusko National Park, New South Wales.

1996 ◽  
Vol 23 (6) ◽  
pp. 711 ◽  
Author(s):  
G Saunders ◽  
B Kay
Keyword(s):  
Home Range ◽  
National Park ◽  
New South ◽  
New South Wales ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Minimum Convex Polygon ◽  
Feral Pigs ◽  
South Wales

The movements of a subalpine population of feral pigs were examined at Kosciusko National Park in southeastern New South Wales. Sufficient data were collected to estimate the home-range area of 20 pigs on the basis of 782 telemetry and trap locations. Mean (+/- s.d.) home-range size (minimum convex polygon method) for males (35.0 t 22.2 km*2) was significantly greater than that for females (1 1.1 +/- 5.2 km*2). Use of capture-recapture distances to estimate home-range size was considered inappropriate. A test for nomadism suggests that, although home ranges of pigs in this environment were larger than those reported for other pigs in Australia, the pigs were essentially sedentary. Management implications for this population are discussed.

scholarly journals Home range sizes of Cape Mountain Zebras Equus Zebra Zebra in the Mountain Zebra National Park

Koedoe ◽  
1982 ◽  
Vol 25 (1) ◽  
Author(s):  
B. L Penzhorn
Keyword(s):  
Home Range ◽  
National Park ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
The Mean

The mean home range size of Cape mountain zebra breeding herds was 9,4 km2 (range 3,1 @ 16,0 km2). In two herds which split up, the home ranges of the resultant herds included the original home ranges, but were larger.

Home Range and Habitat Selection of Female Mountain Nyalas (Tragelaphus Buxtoni) in the Human-Dominated Landscape of the Ethiopian Highlands

2020 ◽  
Author(s):  
Anagaw Atickem ◽  
Matthias Klapproth ◽  
Martha Fischer ◽  
Dietmar Zinner ◽  
Leif Egil Loe
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
National Park ◽  
Resource Selection ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Human Settlement ◽  
Night Time ◽  
Selection Of

Abstract Background: Human settlement and agricultural activities restrict increasingly the range of large mammals in many cases contributing to declining numbers of ungulates. Here, we studied home range size and habitat selection of female mountain nyalas in the northern end of the Bale Mountains National Park (BMNP) (31 km2) surrounded by human settlement. We collected data on space use of seven adult female mountain nyalas equipped with Global Positioning System (GPS) collars. Home range size was estimated using fixed kernel density and habitat selection was determined by resource selection functions.Results: We found that female mountain nyalas have much smaller (5.7 km2) home ranges than the 19 km2 home range size predicted for a 170 kg, group-living species living in mixed habitats. Home ranges were 30% larger in night time than daytime. We suggest that the night time extension beyond the park boundaries were caused by both push and pull effects. The presumably high livestock and other ungulates grazing pressure within the protected area may cause forage-driven excursions out of the park, in particular during agricultural crop seasons. In addition, mountain nyalas are probably attracted by humans as shields against hyena predation. Resource selection index indicates bush land and forest habitat are the most preferred habitat types while agriculture and human settlements are least preferred habitats.Conclusions: Given that mountain nyalas are found in high density (24 individuals/km2) and the size of the northern part of the Bale Mountain National Park, which is currently under protection by the park authorities for the mountain nyala conservation, is too small for the predicted home range size of large ungulates, we suggest protecting additional area may be needed for the long-term conservation of the endangered mountain nyala.

Home-range studies in a reintroduced brush-tailed rock-wallaby (Petrogale penicillata) population in the Grampians National Park, Victoria

2011 ◽  
Vol 33 (2) ◽  
pp. 128 ◽  
Author(s):  
Jenny Molyneux ◽  
David A. Taggart ◽  
Anthony Corrigan ◽  
Sean Frey
Keyword(s):  
Home Range ◽  
National Park ◽  
Site Fidelity ◽  
Home Range Size ◽  
Range Size ◽  
Local Extinction ◽  
Home Ranges ◽  
Radio Tracking ◽  
Western Victoria ◽  
Species Ecology

In 2008, after 9 years of presumed local extinction, brush-tailed rock-wallabies (Petrogale penicillata) were reintroduced at Moora Moora Creek in the Grampians National Park, western Victoria. Since little is known about this species in Victoria, the reintroduction presented an important opportunity to gain information on the species’ ecology. Radio-tracking was undertaken and home range determined for three individuals released 11 months before this study and a further five individuals that were released at the commencement of the study in October 2009. Home-range size showed little variation amongst individuals, with a mean overall home range of 26 ha (±1.69, s.e.) and a mean core home range of 2.5 ha (±0.24, s.e.). Newly reintroduced individuals showed higher levels of association with wallabies from the same release and greater site fidelity when known conspecifics were close. Within 5 months of release, newly reintroduced animals showed home ranges similar in both size and distribution to those of animals released 11 months prior.

scholarly journals Space use of wintering waterbirds in India: Influence of trophic ecology on home-range size

2014 ◽  
Vol 60 (5) ◽  
pp. 616-621
Author(s):  
Tsewang Namgail ◽  
John Y. Takekawa ◽  
Sivananinthaperumal Bala-Chandran ◽  
Ponnusamy Sathiyaselvam ◽  
Taej Mundkur ◽  
...  
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Feeding Habits ◽  
Satellite Telemetry ◽  
Space Use ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Biological Traits ◽  
Indian States

Abstract Relationship between species’ home range and their other biological traits remains poorly understood, especially in migratory birds due to the difficulty associated with tracking them. Advances in satellite telemetry and remote sensing techniques have proved instrumental in overcoming such challenges. We studied the space use of migratory ducks through satellite telemetry with an objective of understanding the influence of body mass and feeding habits on their home-range sizes. We marked 26 individuals, representing five species of migratory ducks, with satellite transmitters during two consecutive winters in three Indian states. We used kernel methods to estimate home ranges and core use areas of these waterfowl, and assessed the influence of body mass and feeding habits on home-range size. Feeding habits influenced the home-range size of the migratory ducks. Carnivorous ducks had the largest home ranges, herbivorous ducks the smallest, while omnivorous species had intermediate home-ranges. Body mass did not explain variation in home-range size. To our knowledge, this is the first study of its kind on migratory ducks, and it has important implications for their conservation and management.

Home Range and Movement Patterns of Sminthopsis leucopus (Marsupialia: Dasyuridae) In Coastal Dry Heathland, Anglesea, Victoria.

1996 ◽  
Vol 19 (1) ◽  
pp. 1
Author(s):  
S. Laidlaw W ◽  
S. Hutchings ◽  
R. Newell G
Keyword(s):  
Home Range ◽  
Average Distance ◽  
Home Range Size ◽  
Home Ranges ◽  
Eastern Australia ◽  
The Hours ◽  
Males And Females ◽  
The Mean ◽  
High Degree ◽  
Degree Of Overlap

Sminthopsis leucopus is a small dasyurid distributed in south-eastern Australia. Radiotelemetry in conjunction with live capture trapping was used to investigate home range size and habitat utilisation of S. leucopus. The average distance moved showed no significant differences between sexes or between seasons. The observed range length and home range area were similar for both sexes. The mean home range area (95% harmonic mean) for S. leucopus was 0.917 hectares. Home ranges of males and females revealed a high degree of overlap. Activity during the day was low and highest in the hours following dusk.

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.

Patch use by the greater glider (Petauroides volans) in a fragmented forest ecosystem. I. Home range size and movements

2004 ◽  
Vol 31 (6) ◽  
pp. 559 ◽  
Author(s):  
M. L. Pope ◽  
D. B. Lindenmayer ◽  
R. B. Cunningham
Keyword(s):  
Population Density ◽  
Home Range ◽  
Patch Size ◽  
Home Range Size ◽  
Range Size ◽  
Home Ranges ◽  
Home Range Overlap ◽  
Eastern Australia ◽  
Core Areas ◽  
Range Overlap

This paper examines home-range attributes of 40 greater gliders (Petauroides volans) in five patches of remnant eucalypt forest surrounded by stands of radiata pine (Pinus radiata) near Tumut in south-eastern Australia. Fixed-kernel smoothing methods were used to estimate home-range size for P. volans. For males, home-range size varied from 1.38–4.10 ha (mean = 2.6 ± 0.8 ha, n = 12) and was significantly larger (P < 0.05) than for females (1.26–2.97 ha, mean = 2.0 ± 0.6 ha, n = 11). Home-range size increased significantly with increasing patch size and reduced patch population density. Thus, small patches had more animals per unit area with smaller home ranges and greater home-range overlap. Our findings illustrate flexibility in the use of space by P. volans. Such results have not previously been reported for P. volans or any other species of arboreal marsupial. Considerable home-range overlap (at 95th percentile isopleth level) was observed between male and female P. volans. Pairs of females also exhibited home-range overlap. Males tended to maintain home ranges exclusive of other males, although some shared common areas. Contrary to the large variations observed in home-range area, core areas (50th isopleth) remained relatively constant, regardless of patch size, population density or sex. This may indicate that core areas are an essential requirement for individuals and resources they contain cannot be shared with congeners.

scholarly journals The home range of adult Phrynops geoffroanus (Testudines, Chelidae) in relation to sex and body mass

Herpetozoa ◽  
2019 ◽  
Vol 32 ◽  
pp. 259-265
Author(s):  
Márcia Marrie Pinheiro Müller ◽  
Zaida Ortega ◽  
Pâmela Castro Antunes ◽  
Larissa Lopes Seino ◽  
Matheus Justino Hammarstron ◽  
...  
Keyword(s):  
Home Range ◽  
Body Mass ◽  
Home Range Size ◽  
Home Ranges ◽  
Distance Method ◽  
Mato Grosso ◽  
Trophic Resources ◽  
Linear Distance ◽  
Terrestrial Habitats ◽  
Radio Transmitters

Studying how different variables influence the size and shape of animals’ home ranges helps our understanding of the ecology of individuals and populations. This study aims to assess the effects of sex and body mass on home range size and the sexual differences in the use of terrestrial habitats of a population of aquatic turtles Phrynops geoffroanus from an urban area in Mato Grosso do Sul, Brazil. Turtles were captured along a river by active search, occasional encounter and hoop traps. Using individual VHF radio transmitters, 13 individuals (7 females and 6 males) were radio-tracked by homing in on the signal strength of the transmitter. Home ranges were estimated by 95% and 50% core one-dimensional fixed kernel and linear distance method. Home ranges were similar for both sexes (t = -0.50, DF = 12, p = 0.62) and independent of body mass (t = -0.53, DF = 12, p = 0.60). However, females seemed to use terrestrial habitats more than males (females = six recorded locations out of 767 points; males = none), probably to nest. To gain insight on how males and females use their space, it would be useful to focus future studies on the influence of sex in microhabitat selection of Phrynops geoffroanus. Finally, as sex did not influence home range, studying the contribution of other variables – both intrinsic, as age or personality, and extrinsic, as habitat composition or distribution of trophic resources – shaping the home ranges of the species is proposed.

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