Distribution Patterns of Sciurus niger (Eastern Fox Squirrel) Leaf Nests Within Woodlots Across a Suburban/Urban Landscape

Salsbury, Carmen M.

doi:10.1656/1092-6194-15.4.485

Cited by 2 publications

(3 citation statements)

References 32 publications

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“…Our objective was to investigate factors influencing nest‐site selection and determine at what scale Arizona gray squirrels select nest areas. The scale at which nest‐site selection is analyzed has not been consistent in other tree squirrel studies (Snyder and Linhart 1994, Taulman 1999, Menzel et al 2004, Edelman and Koprowski 2005, Salsbury 2008). Therefore, we examined multiple scales: forest‐type, nest‐site, nest‐tree, and within‐canopy nest placement to determine selection criteria at each scale.…”

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confidence: 95%

Importance of scale in nest‐site selection by Arizona gray squirrels

Cudworth

Koprowski

2011

J Wildl Manag

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Nests provide a place for individuals to rest, raise young, avoid predators, and escape inclement weather; consequently, knowledge of habitat characteristics important to nest placement is critical for managing species of conservation concern. Arizona gray squirrels (Sciurus arizonensis) are endemic to mountains of southwestern United States and northwestern Mexico. We investigated factors influencing nest‐site selection at 4 spatial scales (forest‐type, nest‐site, nest‐tree, and within‐canopy placement) to provide ecological information and management recommendations for this sensitive species. Nest densities were 2.6 times higher in riparian than pine‐oak woodlands. Nest sites had more large trees, snags, logs, and canopy cover and had lower slope. Arizona gray squirrels selected tall trees with more interlocking trees and tended to place nests adjacent to the main trunk. Regardless of scale, Arizona gray squirrels seemed to select nesting areas for their ability to provide protection from predators and the elements as well as access to food. Consequently, maintaining large trees with closed canopies and downed logs should be considered when determining land management plans. © 2011 The Wildlife Society.

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confidence: 95%

Importance of scale in nest‐site selection by Arizona gray squirrels

Cudworth

Koprowski

2011

J Wildl Manag

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“…Salsbury (2008), studying the density and placement of fox squirrel dreys in 20 woodlots in the Indianapolis metropolitan area (USA), found no effect of woodlot size, shape or degree of isolation on drey density. Contrary, the occupancy of nest boxes by red squirrels was much higher in urban park than in rural areas, probably related to the higher density in the park which could result in good nesting sites becoming a limited resource (Gryz et al.…”

Section: Resultsmentioning

confidence: 99%

“…Grey squirrels counted along transects were more abundant in urban parks, forest and neighbourhood areas, but occurred at low densities or were nearly absent in cemeteries and golf courses (Engel et al 2020) increased with man-induced habitat changes (more people, impervious surface cover, roads and high intensity of developed land use) and with lower tree (canopy) cover (Engel et al 2020). Salsbury (2008), studying the density and placement of fox squirrel dreys in 20 woodlots in the Indianapolis metropolitan area (USA), found no effect of woodlot size, shape or degree of isolation on drey density. Contrary, the occupancy of nest boxes by red squirrels was much higher in urban park than in rural areas, probably related to the higher density in the park which could result in good nesting sites becoming a limited resource (Gryz et al 2021).…”

Section: Density and Occupancymentioning

confidence: 99%

The impact of urbanisation on chipmunks, arboreal and flying squirrels: a global systematic review

Tranquillo,

Bisi,

Wauters

et al. 2023

Mammal Review

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The current, rapid urbanisation process impacts global biodiversity and can be a driver for phenotypic changes in mammals that persist in cities. Animals display different response strategies in urban environments compared to natural areas, but patterns may differ among species. To better comprehend this process, we focused on a limited number of species that are present in many urban green spaces around the globe. The aim of this systematic review is to investigate which response strategies chipmunks, arboreal and flying squirrels use to cope with urban environments, exploring whether there are general response patterns, and to reveal potential adaptations to life in urban areas. We included studies that compared trait differences among conspecifics living in different areas along an urbanisation gradient (rural–urban) and studies comparing individuals or populations between urban areas with different environmental characteristics. The effects of urbanisation on chipmunks, arboreal and flying squirrels, at the individual and at the population levels, were identified in nine topics. Included articles explored at least one of these topics and their key findings were described. Effects of urbanisation are evident in all considered topics. However, we found contrasting patterns between species or even among individuals of the same species studied in different geographical areas. Overall, we reported two knowledge gaps: some phenotypic traits were considered in few studies, and many species, especially those living in the Global South, where urban growth rate is higher, have not been studied. This systematic review suggests that urbanisation can be an important driver for adaptation in small mammals, underlining the complexity and differentiation of response patterns. Since target species have important ecological and social roles, additional comparative studies, increasing our understanding of processes that determine their presence in cities, are essential for urban green planning which aims to conserve biodiversity.

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Distribution Patterns of Sciurus niger (Eastern Fox Squirrel) Leaf Nests Within Woodlots Across a Suburban/Urban Landscape

Cited by 2 publications

References 32 publications

Importance of scale in nest‐site selection by Arizona gray squirrels

Importance of scale in nest‐site selection by Arizona gray squirrels

The impact of urbanisation on chipmunks, arboreal and flying squirrels: a global systematic review

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