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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4830

Title: Coloniality of birds in the Kalahari – spatial distribution of trees and nests of the Sociable Weaver (Philetairus socius)
Authors: Rösner, S
Giesselmann, UC
Meyer, J
Schwager, M
Wiegand, T
Lück-Vogel, M
Brandl, R
Keywords: Sociable weaver
Philetairus socius
Nesting trees
Nests
Biodiversity
Birds
Biota
Weaverbirds
Kalahari
Spatial analysis
Modeling
Issue Date: 2010
Publisher: Klaus Hess Publishers, Göttingen & Windhoek
Citation: Rösner, S, Giesselmann, UC, Meyer, J et al. 2010. Coloniality of birds in the Kalahari – spatial distribution of trees and nests of the Sociable Weaver (Philetairus socius). Schmiedel, U and Jürgens, N. [Eds.]. Biodiversity in southern Africa. Volume 2: Patterns and processes at regional scale: pp 179-183, Klaus Hess Publishers, Göttingen & Windhoek
Series/Report no.: Chapter in a Book;
Abstract: The spatial distribution of suitable nest sites is a limiting resource for many colonial breeding animals. Therefore, we investigated and mapped the spatial distribution of nests of Sociable Weaver (Philetairus socius) to evaluate whether the size and distribution of suitable nesting trees influences the variability of colony size and spatial distribution of colonies in two study sites in the Kalahari, South Africa. We used spatial statistics to describe characteristics of point patterns. Nests of communal weavers were clustered at distances up to 300 m, whereas nests were distributed regularly at distances greater than 1,000 m. We therefore suggest that functional colonies of the social weaver consist of several nests on adjacent trees. From our analyses the question arises why sociable weavers establish sub-colonies instead of adding more chambers to the natal nest.
Description: Rösner, S, Giesselmann, UC, Meyer, J et al. 2010. Coloniality of birds in the Kalahari – spatial distribution of trees and nests of the Sociable Weaver (Philetairus socius). Schmiedel, U and Jürgens, N. [Eds.]. Biodiversity in southern Africa. Volume 2: Patterns and processes at regional scale: pp 179-183, Klaus Hess Publishers, Göttingen & Windhoek
URI: 978-3-933117-46-5
http://hdl.handle.net/10204/4830
Appears in Collections:Environmental management
Climate change
Earth observation
Ecosystems processes & dynamics
General science, engineering & technology

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