Continent-scale pattern in temporal dynamics of avian assemblages

Apan, Armando and Maron, Martine and Dunn, Peter K. (2007) Continent-scale pattern in temporal dynamics of avian assemblages. In: IALE 2007: 25 Years Landscape Ecology: Scientific Principles in Practice, 8-12 Jul 2007, Wageningen, Netherlands.

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Abstract

A common method of characterizing the bird assemblages of sites in landscape ecological research is to conduct a series of snapshot-type surveys, often over less than one year (Maron et al. 2005). However, highly mobile taxa such as birds show substantial interannual variability in species richness and community composition (e.g. Holmes et al. 1986), and this may have implications for the veracity of snapshot-derived patterns. The environmental correlates of inter-annual variability in bird assemblages are not well known, although it seems likely that more climatically stable regions support less dynamic avian assemblages (Jarvinen 1979). We conducted a continent-scale study to investigate associations between environmental factors and annual bird assemblage turnover rates in Australia. Correlates of inter-annual bird assemblage variability have rarely been investigated at this scale as long-term data from across a broad area are required. However, the availability of long-term, large-scale databases from volunteer-based monitoring initiatives provides opportunities for comparisons across large areas. For example, data from the North American Breeding Bird Survey revealed increased annual turnover in landscapes with smaller forest patches (Boulinier et al. 2001).


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 30 Nov 2007 11:55
Last Modified: 15 Mar 2018 01:43
Uncontrolled Keywords: bird population; avian population; wildlife surveys; migration
Fields of Research : 01 Mathematical Sciences > 0104 Statistics > 010402 Biostatistics
06 Biological Sciences > 0602 Ecology > 060207 Population Ecology
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Socio-Economic Objective: D Environment > 96 Environment > 9608 Flora, Fauna and Biodiversity > 960899 Flora, Fauna and Biodiversity of Environments not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/12167

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