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How does nest box temperature affect nestling growth rate and breeding success in a parrot?

Larson, Eliza R., Eastwood,JR, Buchanan,KL, Bennett,ATD and Berg,ML 2015, How does nest box temperature affect nestling growth rate and breeding success in a parrot?, Emu, vol. 115, no. 3, pp. 247-255, doi: 10.1071/MU14081.

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Title How does nest box temperature affect nestling growth rate and breeding success in a parrot?
Author(s) Larson, Eliza R.
Eastwood,JR
Buchanan,KL
Bennett,ATDORCID iD for Bennett,ATD orcid.org/0000-0001-8512-2805
Berg,MLORCID iD for Berg,ML orcid.org/0000-0002-5774-3089
Journal name Emu
Volume number 115
Issue number 3
Start page 247
End page 255
Total pages 9
Publisher CSIRO
Place of publication Melbourne, Vic.
Publication date 2015-05-19
ISSN 0158-4197
1448-5540
Keyword(s) Nest box temperature
Nesting growth rate
Parrot
Climate change
Breeding success
Science & Technology
Life Sciences & Biomedicine
Ornithology
Zoology
ROSELLAS PLATYCERCUS-ELEGANS
SWALLOWS TACHYCINETA-BICOLOR
CLIMATE-CHANGE
TREE SWALLOWS
REPRODUCTIVE SUCCESS
CRIMSON ROSELLAS
SITE SELECTION
SEASONAL DECLINE
NATURAL CAVITIES
MATERNITY ROOSTS
Summary Climate change is predicted to affect many species by reducing range, habitat suitability and breeding success. Cavity-nesting species, already threatened by deforestation and declining natural hollows, may be particularly at risk because they are limited in nest-site location, and climatic alterations may further reduce usability of natural cavities. It is therefore essential to determine how cavity-users may be affected. We recorded internal nest box temperatures and modelled the relationships of four temperature parameters (relating to mean temperature, variability in temperature, low temperature extremes and high temperature extremes) with breeding success and nestling growth in an Australian cavity-nesting parrot, the Crimson Rosella (Platycercus elegans). We found that less extreme low temperatures resulted in heavier nestlings; however, higher mean temperatures tended to result in lighter nestlings. Greater temperature variability tended to reduce fledging success; however, no temperature variables had a clear effect on clutch size or hatching success. Our findings indicate that there may be a complex relationship between nestling growth and temperature, and although less extreme cold temperatures may benefit nestlings, continued increases in mean temperature and variability may have negative consequences.
Language eng
DOI 10.1071/MU14081
Field of Research 060801 Animal Behaviour
060603 Animal Physiology - Systems
0502 Environmental Science And Management
0602 Ecology
0608 Zoology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, CSIRO
Persistent URL http://hdl.handle.net/10536/DRO/DU:30079508

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