Ecology of the koala (Phascolarctos cinereus) in rural south-east Queensland, Australia

1999 ◽  
Vol 26 (6) ◽  
pp. 731 ◽  
Author(s):  
Neil A. White
Keyword(s):  
Home Range ◽  
Rural Areas ◽  
Kernel Estimator ◽  
Home Range Size ◽  
Range Size ◽  
Agricultural Activity ◽  
Phascolarctos Cinereus ◽  
Nest Sites ◽  
Arboreal Marsupials ◽  
Males And Females

This study investigated home-range size, utilisation of tree species and patches, and the influence of spacing behaviour by females on social organisation. It was undertaken in south-east Queensland in an area dominated by agricultural activity (beef and dairy cattle and cropping). Extensive clearing in the study area resulted in patches of vegetation that varied in size from less that 1 ha to blocks of 50–100 ha. Eucalyptus tereticornis and E. crebra were the dominant species in these patches and koalas used both species. The average home-range size (delineated by the 95% probability polygon from a kernel estimator) was 34.4 ha and 15.0 ha for males and females respectively; that delineated by the 70% probability polygon was 12.5 ha and 5.0 ha for males and females respectively. Koalas were not reliant on corridor systems and sometimes moved further than 5 km in a season. Koalas have few non-food-related requirements, i.e. they do not need den sites, nest sites, display areas, etc. Furthermore, they do not utilise the understorey and their mobility between patches does not appear to be compromised by the absence of corridors of trees. It is suggested that, in comparison with other arboreal marsupials, it should be relatively easy to provide habitat for koalas within rural areas.

Mating strategies of Pampean mouse males

2012 ◽  
Vol 62 (4) ◽  
pp. 381-396 ◽  
Author(s):  
Florencia Bonatto ◽  
Daniela Gomez ◽  
Andrea Steinmann ◽  
José Priotto
Keyword(s):  
Body Size ◽  
Sexual Dimorphism ◽  
Home Range ◽  
Space Use ◽  
Home Range Size ◽  
Mating Strategies ◽  
Range Size ◽  
Home Ranges ◽  
Males And Females ◽  
Akodon Azarae

Patterns of space use and sexual dimorphism are frequently used to infer mating systems. We examined body size and home range size and intra- and intersexual overlap degree in order to elucidate mating strategy of Akodon azarae males. We studied spacing patterns using 113 and 129 home ranges established by males and females, respectively, in four 0.25 ha enclosures during the breeding season. Significant differences between sexes in home range size and overlap degree were found. Male home ranges were always larger than those of females. We observed exclusive space use among males and among females. Considering only those males that shared their home ranges with females, average intersexual overlap value was about 50%. Males mainly overlap their home ranges with home ranges of two or three females. Significant differences in body size were found between males and females, with males being larger. We concluded that space use and sexual dimorphism in this species is consistent with patterns characteristic of polygynous rodents, and we propose a polygynous system in A. azarae.

Differences in the foraging behaviour of male and female Egyptian fruit bats (Rousettus aegyptiacus)

2011 ◽  
Vol 89 (6) ◽  
pp. 466-473 ◽  
Author(s):  
R.M.R. Barclay ◽  
D.S. Jacobs
Keyword(s):  
Home Range ◽  
Foraging Behaviour ◽  
Home Range Size ◽  
Small Population ◽  
Range Size ◽  
Native Forest ◽  
Fruit Bats ◽  
Male And Female ◽  
Pregnancy And Lactation ◽  
Males And Females

Male and female animals frequently have different foraging behaviours owing to differences in body size or nutritional demand, or to intraspecific competition. We studied foraging by Egyptian fruit bats ( Rousettus aegyptiacus (E. Geoffroy, 1810)) in Cape Town, South Africa, to test predictions based on differences in nutritional demand during reproduction. Using radiotelemetry, we compared emergence, return, and foraging times of males and females during pregnancy and lactation. We also determined home-range size, habitat use, and use of figs (genus Ficus L.), which are a potential source of calcium for lactating females. During the pregnancy period, males left their roost later than females and were away from the roost for shorter periods. There were no differences in timing of foraging during lactation. Females foraged in native forest more than males did, but home-range size did not differ. There was no evidence that females fed on figs more than males did. Differences in foraging behaviour were not as predicted based on nutritional and energetic differences. The small population may have meant that there was little competition for food, and figs may have provided a profitable source of energy for both males and females. Differences in the timing of foraging are best explained by the need for males to defend roosting sites.

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

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

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

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.

Resource availability drives variation in a marsupial glider’s home‐range size

2021 ◽  
Author(s):  
A. M. Stobo‐Wilson ◽  
T. Cremona ◽  
B. P. Murphy ◽  
S. M. Carthew
Keyword(s):  
Home Range ◽  
Resource Availability ◽  
Home Range Size ◽  
Range Size

Personality and behavioral syndromes in two Peromyscus species: presence, lack of state dependence, and lack of association with home range size

2021 ◽  
Vol 75 (1) ◽  
Author(s):  
Victoria Underhill ◽  
Gregory G. Pandelis ◽  
Jeremy Papuga ◽  
Anne C. Sabol ◽  
Austin Rife ◽  
...  
Keyword(s):  
Home Range ◽  
State Dependence ◽  
Home Range Size ◽  
Range Size ◽  
Behavioral Syndromes

scholarly journals Free-Ranging Farm Cats: Home Range Size and Predation on a Livestock Unit In Northwest Georgia

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0120513 ◽  
Author(s):  
Susanna E. Kitts-Morgan ◽  
Kyle C. Caires ◽  
Lisa A. Bohannon ◽  
Elizabeth I. Parsons ◽  
Katharine A. Hilburn
Keyword(s):  
Home Range ◽  
Home Range Size ◽  
Range Size ◽  
Free Ranging
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