Movements and refugia of Lakeland Downs short-tailed mice, Leggadina lakedownensis, and house mice, Mus domesticus, on Thevenard Island, Western Australia

2000 ◽  
Vol 27 (1) ◽  
pp. 11 ◽  
Author(s):  
Dorian Moro ◽  
Keith Morris
Keyword(s):  
Home Range ◽  
Breeding Season ◽  
Radio Telemetry ◽  
House Mice ◽  
Mus Domesticus ◽  
Water Metabolism ◽  
Air Temperatures ◽  
Core Areas ◽  
Western Australian ◽  
Burrow Morphology

Radio-telemetry was used to identify the home range and refuge sites of two species of mouse inhabiting a semi-arid island off the Western Australian coast, in an effort to understand differences in their water metabolism. The native short-tailed mouse, Leggadina lakedownensis, had a median home range of 4.8 ha. This area increased during the non-breeding season (5.3 ha) compared with the breeding season (3.0 ha), but this difference was not significant. In contrast, the median home range for the house mouse, Mus domesticus, was smaller (2.8 ha), although this was variable. Core areas were best represented by the 75% and 60% isopleths for M. domesticus and L. lakedownensis, respectively. Core areas were greater in L. lakedownensis (1.0 ha) than in M. domesticus (0.8 ha). Furthermore, the degree of overlap in core areas was low for L. lakedownensis, but absent for M. domesticus. There was no evidence that M. domesticus used burrows as refuges. Instead, they sheltered in dense bushes above ground during the day where air temperatures were ameliorated by the cover. L. lakedownensis rested in burrows during the day where high air temperatures were mainatined at a constant 28°C, and a relative humidity of between 72–97%. Burrow morphology was simple and comprised two types: burrows with a single chamber, and those without a chamber, indicative of a solitary habit. These results suggest that a fossorial behaviour in L. lakedownensis may lower its water economy compared with M. domesticus, which shelters above ground.

Home range, movement and habitat utilisation of the Carpentarian rock-rat (Zyzomys palatalis) in an isolated habitat patch

2004 ◽  
Vol 31 (3) ◽  
pp. 327 ◽  
Author(s):  
Helen Puckey ◽  
Milton Lewis ◽  
David Hooper ◽  
Carrie Michell
Keyword(s):  
Home Range ◽  
Radio Telemetry ◽  
Central Area ◽  
Limited Resource ◽  
Home Ranges ◽  
Habitat Patch ◽  
Minimum Convex Polygon ◽  
Significant Difference ◽  
Core Areas ◽  
The Mean

Radio-telemetry was used to examine the home range, movement and habitat utilisation of the critically endangered Carpentarian rock-rat (Zyzomys palatalis) in an isolated habitat patch in the Gulf of Carpentaria hinterland over a 13-month period. Two home-range estimators were used in the study, (i) minimum convex polygon (MCP) and (ii) fixed Kernel (KL), the latter also being used to estimate core areas of activity. Based on a total sample size of 21 individuals, the mean MCP home range was 11 165 m2, similar to the mean KL home range of 10 687 m2. Core areas were, on average, 11.9% of the KL home-range estimate. There was no significant difference in the size of home range or core area of males and females. Juveniles had a significantly smaller home range than adults. Home ranges and, to a lesser degree, core areas were non-exclusive, with multiple areas of overlap (averaging 41% and 38% respectively) within and between all age and gender categories, but especially between males and between juveniles. Movement frequencies showed that animals made many short forays in a central area close to the arithmetic home-range mean and far fewer long forays of distances greater than 100 m from the central area. The spatial and temporal activity of Z. palatalis was concentrated in, but not confined to, the 'valley' and 'slope' habitats, with fewer movements of rats onto the surrounding 'plateau'. Resource selection analyses showed that Z. palatalis tended to prefer valley and slope habitats over the plateau and that the proportion of point locations was significantly higher for adults in the slope habitat and for juveniles in the valley habitat. Most home ranges were centred on the ecotone between these two habitat types. Although isolated and spatially limited, these habitat patches provide high-quality resources for dense populations of Z. palatalis. This study exemplifies a species' attempt to make efficient use of a limited resource in an otherwise hostile environment. Even small declines in habitat area or quality due to their vulnerability to fire would impact upon many animals.

scholarly journals Size of home range of Tengmalm’s owl (Aegolius funereus) males during breeding season assessed by radio-telemetry in the Jizera Mountains, Czechia

2018 ◽  
Vol 12 (1) ◽  
pp. 1-7
Author(s):  
Marek Kouba ◽  
Václav Tomášek
Keyword(s):  
Home Range ◽  
Breeding Season ◽  
Radio Telemetry ◽  
Home Range Size ◽  
Range Size ◽  
Time Interval ◽  
Home Ranges ◽  
Aegolius Funereus ◽  
The Mean ◽  
Tengmalm's Owl

Abstract Animal home ranges are typically characterized by their size, shape and a given time interval and can be affected by many different biotic and abiotic factors. Understanding of animal movements and assessing the size of their home ranges are essential topics in ecology and necessary for effective species protection, especially concerning birds of prey. Using radio-telemetry (VHF; 2.1 g tail-mounted tags) we studied the movements of two Tengmalm’s owl (Aegolius funereus) males during the breeding season 2008 in a mountain area of Central Europe (the Czech Republic, the Jizera Mountains: 50˚ 50’ N, 15˚ 16’ E). We determined their average nocturnal hunting and diurnal roosting home range sizes. The mean hunting home range size calculated according to the 90% fixed kernel density estimator was 251.1 ± 43.2 ha (± SD). The mean roosting home range size calculated according to the 100% minimum convex polygon method was 57.9 ± 15.8 ha (± SD). The sizes of hunting home ranges during breeding in this study coincide with those previously reported by other studies focusing on Tengmalm’s owl males. However, we found the roosting home ranges were smaller in size compared to those previously reported. This result was most probably connected with different habitat structure in our study area, which was severally damaged by air-pollution in the past, thus probably offering fewer suitable hiding-places, for instance from predators. We found the roosting locations were concentrated in the oldest and densest Norway spruce forest patches. We emphasize that these parts of forest stands require the highest possible protection in our study area.

Seasonal-Variation in the Ranging Behavior of the Platypus (Ornithorhynchus-Anatinus) on the Goulburn River, Victoria

1995 ◽  
Vol 43 (2) ◽  
pp. 193 ◽  
Author(s):  
N Gust ◽  
K Handasyde
Keyword(s):  
Home Range ◽  
Breeding Season ◽  
Radio Telemetry ◽  
Activity Patterns ◽  
Water Levels ◽  
The Body ◽  
Breeding Period ◽  
Ranging Behavior ◽  
Adult Males ◽  
Temporal Separation

Radio-telemetry was used to study the effects of changing reproductive condition and water levels on the ranging behaviour and activity patterns of adult male platypuses in the Goulburn River, Victoria. Home-range size varied greatly between individuals, from 2 . 45 to 15 . 45 ha, but differences in the body weight of individuals did not account for this variability. There was no correlation between the number of burrows used by males and their body size or home-range length. Changing river levels or the animal's breeding condition did not appear to affect the duration of activity periods, which remained constant throughout the study. All radio-tracked animals foraged in a submerged backwater area during high-water conditions, suggesting that platypuses are opportunistic in their habitat usage and may avoid fast-flowing water if calmer areas are available. Although the home ranges of adult males overlapped extensively during the non-breeding period, there was evidence of spatial separation during the breeding season, when animals occupied separate core areas. In addition there appeared to be some temporal separation between adult males during the breeding season. During this period there was greater variation in the times at which animals emerged from their burrows, and some animals became diurnal.

The effect of habitat on the breeding season survival of Mallards (Anas platyrhynchos) in the Great Lakes region

2018 ◽  
Vol 96 (7) ◽  
pp. 700-706
Author(s):  
Ryan A. Boyer ◽  
John M. Coluccy ◽  
Robert A. Montgomery ◽  
Kyle M. Redilla ◽  
Scott R. Winterstein
Keyword(s):  
Home Range ◽  
Great Lakes ◽  
Breeding Season ◽  
Anas Platyrhynchos ◽  
Habitat Associations ◽  
Home Ranges ◽  
Great Lakes Region ◽  
Habitat Types ◽  
Risk Of Predation ◽  
Core Areas

Modeling the effect of habitat on animal survival is critical for understanding population dynamics and developing effective habitat management strategies. Despite the importance of this information, knowledge of survival–habitat associations are often lacking, particularly for waterfowl species. Here we evaluated female Mallard (Anas platyrhynchos Linnaeus, 1758) survival during the breeding season in relation to habitat conditions within each individual’s home range. We implanted telemetry transmitters and tracked 283 female Mallards across nine study sites in the Great Lakes region. For each Mallard, we quantified core breeding season home ranges via the creation of utilization distributions (UDs). We then fit known-fate models in the program MARK to predict breeding season survival as a function of the proximity of core home ranges to various habitat types, the proportion of habitat types within the core areas, number of core areas, and home range size. We found that breeding season survival decreased as the proportion of forestland habitat within core home ranges increased (β = −1.740, SE = 0.787). No additional upland or wetland habitat types significantly affected breeding season survival. Managers striving to increase breeding season survival for Mallards should focus their efforts on restoring habitats in areas with low proportions of forestland habitat to mitigate the risk of predation.

Movements of Feral House Mice in Agricultural Landscapes

1995 ◽  
Vol 43 (3) ◽  
pp. 293 ◽  
Author(s):  
CJ Krebs ◽  
AJ Kenney ◽  
GR Singleton
Keyword(s):  
Breeding Season ◽  
Space Use ◽  
Agricultural Landscapes ◽  
Social Organisation ◽  
House Mice ◽  
Agricultural Fields ◽  
Mus Domesticus ◽  
Home Ranges

From September 1992 to May 1993 we radio-collared 155 house mice (Mus domesticus) on agricultural fields in southern Queensland to measure movements and to determine social organisation. During the breeding season most individuals were site-attached and home ranges of both sexes overlapped extensively. There was no sign of exclusive space use for breeding individuals. Breeding males had home ranges that were larger than those of breeding females (0.035 ha v. 0.015 ha), and moved about more. After breeding ended, home ranges increased over tenfold in area, and most mice became nomadic and not site-attached.

The spatial dynamics of White-browed Babbler groups in a fragmented agricultural landscape

2002 ◽  
Vol 8 (4) ◽  
pp. 271 ◽  
Author(s):  
Peter G. Cale
Keyword(s):  
Home Range ◽  
Breeding Season ◽  
Group Dynamics ◽  
Agricultural Landscape ◽  
Local Population ◽  
Breeding Site ◽  
Home Ranges ◽  
Effective Population ◽  
Study Sites ◽  
Group Movements

White-browed Babbler Pomatostomus superciliosus groups occupying linear strips of vegetation had breeding territories that were smaller in area and had longer linear dimensions than those occupying patches. A group's non-breeding home range was larger than its breeding territory. Groups occupying linear/patch home ranges expanded the linear extent and area of their home ranges more than those within other home range configurations. Some groups moved during the non-breeding season and this was more likely to occur if the group occupied a remnant with a low abundance of invertebrates during summer. Some groups that moved returned prior to the next breeding season, but the majority were never seen again. New groups moved into the study sites and established in vacant home ranges. This suggests that those groups that left the study sites may have established new home ranges elsewhere. Breeding site fidelity was lower in groups that had failed in previous breeding attempts. Therefore, group movements were influenced by the feeding and breeding quality of the habitat. However, the configuration of the local population also influenced group movements with those groups on the edge of a local population being more likely to move than those in the interior. New groups were formed by two processes; group dispersal, where groups generally filled a vacant home range, and group budding, which involved the splitting of a large group. Group dispersal maintained group densities while group budding increased the density of groups in a local population. These two processes were common, producing localized fluctuations in the density of groups. Since babbler groups contain only one breeding pair, changes in group density represent changes in effective population size. Therefore, group dynamics may be important to the persistence of local populations of White-browed Babblers, especially in landscapes that have suffered from habitat loss and fragmentation.

Potential impacts of poison baiting for introduced house mice on native animals on islands in Jurien Bay, Western Australia

2016 ◽  
Vol 43 (1) ◽  
pp. 61 ◽  
Author(s):  
Clifford Bennison ◽  
J. Anthony Friend ◽  
Timothy Button ◽  
Harriet Mills ◽  
Cathy Lambert ◽  
...  
Keyword(s):  
Western Australia ◽  
Rhodamine B ◽  
Native Species ◽  
House Mice ◽  
Mus Domesticus ◽  
Target Species ◽  
Island Populations ◽  
Delivery Technique ◽  
Poison Baiting ◽  
Competition For Resources

Context House mice (Mus domesticus) are present on Boullanger and Whitlock islands, Western Australia, and could potentially threaten populations of the dibbler (Parantechinus apicalis) and grey-bellied dunnart (Sminthopsis griseoventer) through competition for resources. A workshop in 2007 recommended a study to assess the feasibility of eradicating house mice from the islands by using poison baits and of the risk posed to non-target native species. Aim We aimed to assess the risk to non-target native species if poison baiting was used to eradicate house mice on Boullanger and Whitlock islands. Methods Non-toxic baits containing the bait marker rhodamine B were distributed on Boullanger Island and on the mouse free Escape Island to determine the potential for primary poisoning. Acceptance of baits by mammals was measured through sampling and analysis of whiskers, and by reptiles through observations of dye in faeces. To determine the potential for secondary exposure to poison, the response of dibblers to mouse carcasses was observed using motion-activated cameras. Bait acceptance was compared using two methods of delivery, namely, scattering in the open and delivery in polyvinyl chloride (PVC) tubes. A cafeteria experiment of bait consumption by dibblers was also undertaken using captive animals held at the Perth Zoo. Ten dibblers were offered non-toxic baits containing rhodamine B in addition to their normal meals; consumption of bait and the presence of dye in whiskers were measured. Key results Bait acceptance on the islands was high for house mice (92% of individuals) and dibblers (48%) and it was independent of bait-delivery technique. There was no evidence of bait acceptance by grey-bellied dunnarts. Dibblers may consume mice carcasses if available; however, no direct consumption of mice carcasses was observed with movement sensor cameras but one dibbler was observed removing a mouse carcass and taking it away. During the cafeteria experiment, 9 of 10 captive dibblers consumed baits. Conclusions This investigation demonstrated that dibblers consume baits readily and island populations would experience high mortality if exposed to poison baits. Poison baiting could effectively eradicate mice from Boullanger and Whitlock islands but not without mortality for dibblers. Implications Toxic baits could be used to eradicate mice from Boullanger and Whitlock islands, provided that non-target species such as dibblers were temporarily removed from the islands before the application of baits.

scholarly journals Altitudinal movements and conservation of Bare-necked Umbrellabird Cephalopterus glabricollis of the Tilarán Mountains, Costa Rica

2003 ◽  
Vol 13 (1) ◽  
pp. 45-58 ◽  
Author(s):  
Johel Chaves-Campos ◽  
J. Edgardo Arévalo ◽  
Mariamalia Araya
Keyword(s):  
Costa Rica ◽  
Breeding Season ◽  
Protected Area ◽  
Radio Telemetry ◽  
Fruit Breeding ◽  
Potential Threat ◽  
Fruit Abundance ◽  
Transect Counts ◽  
Using Data ◽  
High Elevations

Bare-necked Umbrellabird Cephalopterus glabricollis is endemic to Costa Rica and western Panama. It eats fruit, breeding at high elevations (≥ 800 m) and migrating to lower elevations during the non-breeding season. Using data from transect counts and radio-telemetry, we monitored bird movements in a protected area (Monteverde–Arenal–San Ramón reserves) in the Tilarán Mountains, Costa Rica. We also monitored fruit abundance along an altitudinal gradient to explore the potential relationship between bird movements and the abundance of the fruits this species consumed. The presence and abundance of umbrellabirds at high elevations (1,400 m) during the breeding season (March–June) coincided with the highest peak of fruit abundance. The presence of umbrellabirds in the lowlands (400 m) during the non-breeding season overlapped with the period of highest fruit abundance at these elevations. At middle elevations, bird presence and abundance did not correlate with fruit abundance. Radio-tagged birds left the protected area during the non-breeding season and there were no umbrellabirds inside the protected area during this period. Habitats where this species bred were well represented in the protected area but the habitat where they spent the non-breeding season was poorly represented, and was not adequately protected. This represents a potential threat to this species in the Tilarán Mountains.

Urine marking in populations of wild house mice Mus domesticus rutty. I. Communication between males

1990 ◽  
Vol 40 (2) ◽  
pp. 209-222 ◽  
Author(s):  
Jane L. Hurst
Keyword(s):  
House Mice ◽  
Mus Domesticus ◽  
Urine Marking ◽  
Wild House Mice

scholarly journals Investigating Home Range, Movement Pattern, and Habitat Selection of Bar-headed Geese during Breeding Season at Qinghai Lake, China

Animals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 182 ◽  
Author(s):  
Ruobing Zheng ◽  
Lacy Smith ◽  
Diann Prosser ◽  
John Takekawa ◽  
Scott Newman ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
Breeding Season ◽  
Movement Ecology ◽  
Movement Pattern ◽  
Qinghai Lake ◽  
Important Species ◽  
Central Asian ◽  
Anser Indicus ◽  
Selection Of

The Bar-headed Goose is the only true goose species or Anserinae to migrate solely within the Central Asian Flyway, and thus, it is an ideal species for observing the effects of both land use and climate change throughout the flyway. In this paper, we investigate the home range, movement pattern, and habitat selection of Bar-headed Geese (Anser indicus) during the breeding season at Qinghai Lake, which is one of their largest breeding areas and a major migration staging area in the flyway. We identified several areas used by the geese during the breeding season along the shoreline of Qinghai Lake and found that most geese had more than one core use area and daily movements that provided insight into their breeding activity. We also observed the intensive use of specific wetlands and habitats near Qinghai Lake. These data provide interesting insights into the movement ecology of this important species and also provide critical information for managers seeking to understand and respond to conservation concerns threatening Bar-headed Geese, such as landscape and habitat changes.

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