Habitat Selection by the Texas Tortoise in a Managed Thornscrub Ecosystem

Kazmaier, Richard T.; Hellgren, Eric C.; Ruthven, Donald C.

doi:10.2307/3803016

Cited by 28 publications

(21 citation statements)

References 14 publications

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“…The preference for intermediate successional stages has been noted in other species of tortoises (Auffenberg and Franz 1982;Stubbs 1995;Kazmaier et al 2001). In the distribution area of T. graeca in southeast Spain, the generation and maintenance of intermediate vegetation stages has been historically related to relief, natural fires and the action of wild herbivores.…”

Section: Implications For Habitat Managementmentioning

confidence: 64%

Habitat Selection by the Spur-thighed Tortoise Testudo graeca in a Multisuccessional Landscape: Implications for Habitat Management

et al. 2006

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As a result of human activities, natural Mediterranean landscapes (including agro-ecosystems) are characterised by a mosaic-like structure with habitat-patches at different successional stages. These systems have high biodiversity levels and are home to a large number of species protected by European laws whose habitats should be adequately managed. In the present work, we study habitat use from an applied point of view in the spur-thighed tortoise Testudo graeca, an endangered reptile present in semi-arid Mediterranean agro-ecosystems. Results show that, at a landscape scale, the species selects simplified vegetation structures and includes in its home range re-colonisation shrubland and small non-irrigated fields. Within the home range, habitat selection patterns vary and areas with higher vegetation cover and complexity are selected. Detected patterns are discussed in terms of the ecological requirements of the species and with a hierarchical view of resources and conditions. The implications of our findings for habitat management aimed at the conservation of the species are also discussed.

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Section: Implications For Habitat Managementmentioning

confidence: 64%

Habitat Selection by the Spur-thighed Tortoise Testudo graeca in a Multisuccessional Landscape: Implications for Habitat Management

et al. 2006

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“…Expected usage of a habitat type was defined as the ratio of the area of the particular habitat type to the total area of the study site. The study-site area was defined at the home-range spatial scale using the smallest rectangle that included all 95% fixed-kernel home-ranges (see below for more information about the fixed-kernel home-range method), and at the corearea spatial scale using the smallest rectangle that included all the 50% fixed-kernel home ranges (sensu Kazmaier et al, 2001). This corresponds to a design-2 analysis of habitat selection according to Johnson (1980) because individuals could be identified using radiotelemetry data.…”

Section: Data Collection and Analysismentioning

confidence: 99%

Use of Telemetry Data to Investigate Home Range and Habitat Selection in Mammalian Carnivores

Silva-Opps¹,

Opps²

2011

Modern Telemetry

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“…On the other hand, during the breeding season individuals could be identified using radio-telemetry (i.e., design-2; [25]), and so we defined the study-site area at two different spatial scales. The study-site area was defined at the home-range spatial scale using the smallest rectangle that included all 95% fixed-kernel home-ranges, and at the core-area spatial scale using the smallest rectangle that included all the 50% fixed-kernel home ranges (sensu [26]). ArcView GIS (version 3.3; ESRI) was used to calculate all the study site areas, as well as the availability of the different habitat types comprised within each study site.…”

Section: Data Collection and Analysesmentioning

confidence: 99%

Habitat use and home range size of red foxes in Prince Edward Island (Canada) based on snow-tracking and radio-telemetry data

2009

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There is a lack of information regarding the ecology and behaviour of red foxes that can be used to elaborate effective management programs for this species on Prince Edward Island (Canada). The main goal of this study was to provide baseline information on habitat selection and home range size of red foxes on Prince Edward Island. Data were collected from snow-tracking and radio-telemetry sessions conducted in two study sites (including one site within Prince Edward Island National Park). Our results indicated that red foxes selected for roads and human-use areas during both the breeding and the kit-rearing seasons in the park. Outside the park, however, the data failed to conclusively show that foxes have a unique preference for human-use habitats or roads. Forests were selected against in both study sites. Although roads are frequently visited by foxes during the kit-rearing season in the park, each individual fox typically stays in this habitat only for short periods of time (< 15 min). This finding suggests that foraging efficiency along the roads is very high possibly reflecting the abundance of anthropogenic food sources. Overall, we present the largest amount of data on habitat selection ever collected for red foxes in Prince Edward Island, Canada. Our results show that food sources in human-use areas and roads are altering the selection and/or use of habitats of red foxes in some areas of Prince Edward Island.

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Habitat Selection by the Texas Tortoise in a Managed Thornscrub Ecosystem

Cited by 28 publications

References 14 publications

Habitat Selection by the Spur-thighed Tortoise Testudo graeca in a Multisuccessional Landscape: Implications for Habitat Management

Habitat Selection by the Spur-thighed Tortoise Testudo graeca in a Multisuccessional Landscape: Implications for Habitat Management

Use of Telemetry Data to Investigate Home Range and Habitat Selection in Mammalian Carnivores

Habitat use and home range size of red foxes in Prince Edward Island (Canada) based on snow-tracking and radio-telemetry data

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