Factors influencing the occurrence of mammals in retained linear strips (wildlife corridors) and contiguous stands of montane ash forest in the Central Highlands of Victoria, southeastern Australia

Lindenmayer, David B.; Cunningham, Ross B.; Donnelly, Christine; Triggs, Barbara; Belvedere, M

doi:10.1016/0378-1127(94)90011-6

Cited by 47 publications

(25 citation statements)

References 59 publications

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“…For spiders, beetles and other invertebrates, gaps of the order of 20m can pose an almost total barrier (Mader 1984(Mader , 1988Klein 1989). In Canada, grassy gaps in wooded fencerows had a negative influence on the use of the fencerow network by woodland mammals such as the Eastern Chipmunk (Bennett et al 1994); while a similar negative effect on the occurrence of the Brown Antechinus (a small terrestrial marsupial) in retained forest strips in Australia was attributed to roads and tracks creating gaps in the forest strip (Lindenmayer et al 1994b). Birds are generally more mobile than non-flying animals but behavioural avoidance, rather than a physical inability to traverse distances, is probably the reason that many forest-interior birds are inhibited by forest gaps.…”

Section: Structural Connectivitymentioning

confidence: 99%

“…Consequently, the availability and reliability of resources such as food, shelter, refuge from predators and nest sites are critical if animals are to be able to live in linkages and use them as pathways for movement. A variety of studies have shown relationships between the occurrence and abundance of animals in connecting habitats and the availability of certain habitat components (Pollard et al 1974;Yahner 1983a, b;Arnold 1983;Osborne 1984;Recher et al 1987;Lindenmayer et al , 1994bBennett et al 1994). The provision of high quality habitat raises several important issues in the design and management of linkages.…”

Section: Quality Of Habitatmentioning

confidence: 99%

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Linkages in the landscape : the role of corridors and connectivity in wildlife conservation

Bennett¹

2003

567

469

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Linkages in the Landscape IUCN'S FOREST CONSERVATION PROGRAMMEIUCN's Forest Conservation Programme coordinates and supports the activities of the IUCN Secretariat and members working with forest ecosystems. The goal of forest conservation is achieved through promoting protection, restoration and sustainable use of forest resources, so that forests provide the full potential range of goods and services.The programme makes contributions to policy at various levels and uses field projects to derive lessons to feed into the policy debate. The principles of Caring for the Earth, published jointly by IUCN, WWF and UNEP in 1991, are applied to these projects, which combine the needs of conservation and those of local communities. One major activity is to develop coherent and informed policies on forest conservation in order to advocate the translation of policies into effective actions. IUCN frequently advises major development institutions on forest issues, to ensure that conservation priorities are adequately addressed in their projects and programmes. The Forest Conservation Programme receives generous financial support from the Government of the Netherlands. The IUCN Forest Conservation Programme Linkages in the Landscape The Role of Corridors and Connectivity in Wildlife Conservation Andrew F. BennettSchool of Ecology and Environment Deakin University -Melbourne Campus, Burwood, Victoria 3125, Australia IUCN -The World Conservation Union 2003The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of IUCN or Environment Australia concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The views expressed in this publication do not necessarily reflect those of IUCN or Environment Australia. This publication has been made possible in part by funding from Environment Australia. Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged.Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission of the copyright holder.Citation: Bennett, A.F. (1998Bennett, A.F. ( , 2003 When this volume was produced four years ago the title was prescient indeed -as the Vth World Parks Congress has selected more or less the same title for its first workshop stream ("more or less" because the workshop title is "Linkages in the landscape/seascape)". In fact, we are better thinking of the term "earthscape", which can be defined as a group of interconnected ecological systems. Earthscape also avoids the linguistic complications of trying to translate landscape into the common parlance of European, let alone global languages.The Secretariat of the linkages stream for the Vth World Parks Congress, together with the IUCN Commission on Ecosystem Management,...

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Section: Structural Connectivitymentioning

confidence: 99%

Section: Quality Of Habitatmentioning

confidence: 99%

Linkages in the landscape : the role of corridors and connectivity in wildlife conservation

Bennett¹

2003

567

469

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“…Bush rat movements may therefore be restricted to watercourses and drainage lines (Lindenmayer and Peakall 2000). Bush rat distribution may be less dependant on proximity to watercourses in other forest types such as rainforest or wet sclerophyll forests, although even in these habitats, bush rats display a marked preference for habitat associated with moist sites (Lindenmayer et al 1994, Lindenmayer andPeakall 2000).…”

Section: Processes Accounting For the Observed Spatial Genetic Structmentioning

confidence: 99%

“…At larger scales, heterogeneity of bush rat distribution has been attributed to the structural complexity of the habitat (Lindenmayer et al 1994) and the availability of a suitable substrate for burrowing (Warneke 1971). In our study, we restricted trapping to the creek gullies that are known to represent the preferred habitat of bush rats, and more or less represented homogeneous habitat across the scale of sampling of 800-1000 m. Clearly, at the finer scale of trapping intervals (10 m), microhabitat heterogeneity was apparent but we have not attempted to correlate microscale heterogeneity with capture success.…”

Section: Relationships Between Spatial Distribution and Genetic Strucmentioning

confidence: 99%

Spatial Autocorrelation Analysis Offers New Insights Into Gene Flow in the Australian Bush Rat, Rattus Fuscipes

2003

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Abstract. Dispersal is a fundamental process that influences the response of species to landscape change and habitat fragmentation. In an attempt to better understand dispersal in the Australian bush rat, Rattus fuscipes, we have combined a new multilocus autocorrelation method with hypervariable microsatellite genetic markers to investigate fine-scale (Յ1 km) patterns of spatial distribution and spatial genetic structure. The study was conducted across eight trapping transects at four sites, with a total of 270 animals sampled. Spatial autocorrelation analysis of bush rat distribution revealed that, in general, animals occurred in groups or clusters of higher density (Յ200 m across), with intervening gaps or lower density areas. Spatial genetic autocorrelation analysis, based on seven hypervariable microsatellite loci (He ϭ 0.8) with a total of 80 alleles, revealed a consistent pattern of significant positive local genetic structure. This genetic pattern was consistent for all transects, and for adults and sub-adults, males and females. By testing for autocorrelation at multiple scales from 10 to 800 m we found that the extent of detectable positive spatial genetic structure exceeded 500 m. Further analyses detected significantly weaker spatial genetic structure in males compared with females, but no significant differences were detected between adults and sub adults. Results from Mantel tests and hierarchical AMOVA further support the conclusion that the distribution of bush rat genotypes is not random at the scale of our study. Instead, proximate bush rats are more genetically alike than more distant animals. We conclude that in bush rats, gene flow per generation is sufficiently restricted to generate the strong positive signal of local spatial genetic structure. Although our results are consistent with field data on animal movement, including the reported tendency for males to move further than females, we provide the first evidence for restricted gene flow in bush rats. Our study appears to be the first microsatellite-based study of fine-scale genetic variation in small mammals and the first to report consistent positive local genetic structure across sites, age-classes, and sexes. The combination of new forms of autocorrelation analyses, hypervariable genetic markers and fine-scale analysis (Ͻ1 km) may thus offer new evolutionary insights that are overlooked by more traditional larger scaled (Ͼ10 km) population genetic studies.

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“…Suckling (1978) used hair tubes to detect arboreal mammals; later Scotts and Craig (1988) modified the design to facilitate the detection of rare terrestrial animals. Since then, a number of studies have used hair tubes either as the principal survey method or in combination with other techniques (Laidlaw and Wilson 1989;Scotts and Seebeck 1989;Lindenmayer et al 1994Lindenmayer et al , 1999a. One of the reasons for the rise in popularity of hair tubes is their low cost and the ability to deploy them over larger areas without the concerns that are typically associated with live trapping.…”

Section: Hair Tubesmentioning

confidence: 97%

A technique for using hair tubes beneath the snowpack to detect winter-active small mammals in the subnivean space

Sanecki

Green

2004

Eur J Wildl Res

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The study of winter-active small mammals beneath the snowpack has proved challenging for researchers because of the relative inaccessibility. We present a technique using hair tubes that permits the detection of small mammals active in the subnivean space. Hair tubes are cylindrical or funnel-shaped structures containing suitable bait and an adhesive surface that harvests hairs from small mammals as they attempt to reach the bait. Hair tubes eliminate many of the difficulties often associated with live trapping and permit the expansion of systematic sampling to larger scales than allowed by conventional live-trapping methods. The technique was used successfully to detect five small mammal species in the subnivean space in Kosciuszko National Park (KNP) in southeastern Australia. These included the common bush-rat, Rattus fuscipes; the dusky and agile antechinus, Antechinus swainsonii and A. agilis; the broad-toothed rat, Mastacomys fuscus; and the mountain pygmy possum, Burramys parvus. Although hair tubes have a number of limitations, such as not providing a measure of abundance or allowing the identification of individual animals, we believe that these limitations are balanced by the fact that the technique can be used at any spatial scale. Hair tubes are particularly suited to studies of animal distribution at the landscape-scale, because many hair tubes can be deployed and dispersed over large areas, and monitored on a regular basis by a small team of researchers. The technique also makes use of readily available, low-cost materials and could be easily adapted to a range of conditions and different target species.

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Factors influencing the occurrence of mammals in retained linear strips (wildlife corridors) and contiguous stands of montane ash forest in the Central Highlands of Victoria, southeastern Australia

Cited by 47 publications

References 59 publications

Linkages in the landscape : the role of corridors and connectivity in wildlife conservation

Linkages in the landscape : the role of corridors and connectivity in wildlife conservation

Spatial Autocorrelation Analysis Offers New Insights Into Gene Flow in the Australian Bush Rat, Rattus Fuscipes

A technique for using hair tubes beneath the snowpack to detect winter-active small mammals in the subnivean space

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