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Regional breeding and migration strategies based on intensive volunteer census and demographic monitoring

Ralph, C. J., Szabo, Judith and Salas, L. (2010). Regional breeding and migration strategies based on intensive volunteer census and demographic monitoring. In: 25th International Ornithological Congress, Campos do Jordao, SP, Brazil, 22-28 August 2010.

Document type: Conference Paper
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IRMA ID 81704288xPUB556
Author Ralph, C. J.
Szabo, Judith
Salas, L.
Title Regional breeding and migration strategies based on intensive volunteer census and demographic monitoring
Conference Name 25th International Ornithological Congress
Conference Location Campos do Jordao, SP, Brazil
Conference Dates 22-28 August 2010
Conference Publication Title Abstracts of the 25th International Ornithological Congress
Place of Publication Brazil
Publisher International Ornithological Congress
Publication Year 2010
ISSN 9788591161805   (check CDU catalogue open catalogue search in new window)
Start Page 344
End Page 344
Total Pages 1
HERDC Category E3 - Conference Publication - Extract of paper (internal)
Abstract Effective conservation requires in-depth knowledge of the life history strategies of migratory and resident birds which we have blended into a unique combination of census and demographic data. Recently new analytical tools have appeared on the scene, that can provide critical information on the interactions between demographics, habitat and climatic dynamics,
interactions with other species, and the timing of bird movements and physiological events. In our region we likely have the densest concentration of monitoring stations in the world: about 120 mist-netting stations and over 20,000 census stations in an area of about 500 kilometres on a side. Operating these stations regularly from early spring through late autumn, and applying new statistical visualization and analytical tools, gives us reliable information for many species and their conservation. We demonstrate though power analyses how these answers would be impossible without the availability of this large complex of data sets generated by a multitude of observers. Coupled with the demonstration of web-based data, it provides several powerful tools to the investigator and to the analyst. We have discovered that within a species, regional differences can be as profound as those between species, and as critical to their survival. For example we have found plasticity in migration and dispersal strategies can show that species have a surprising amount of ability to adapt to different climatic conditions between years, an ability hitherto thought to be the provenance of birds in much more stochastic environments
 
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Created: Fri, 17 Jan 2014, 00:13:16 CST