Climate warming and reproduction in Chinese alligators

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dc.contributor.author Zhang, Feng en_US
dc.contributor.author Li, Yuefeng en_US
dc.contributor.author Guo, Zai en_US
dc.contributor.author Murray, Bradley en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:43:56Z
dc.date.available 2010-05-28T09:43:56Z
dc.date.issued 2009 en_US
dc.identifier 2008007873 en_US
dc.identifier.citation Zhang Feng et al. 2009, 'Climate warming and reproduction in Chinese alligators', Wiley-Blackwell Publishing, Inc, vol. 12, no. 2, pp. 128-137. en_US
dc.identifier.issn 1367-9430 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/8546
dc.description.abstract The Chinese alligator Alligator sinensis is a critically endangered species endemic to China, and one of the most endangered crocodilian species in the world. Like many other reptiles, important aspects of alligator biology such as foraging, timing of hibernation, breeding and the sex ratio of offspring are all affected by temperature variation. We examined the effects of long-term temperature change on oviposition dates and clutch sizes of the Chinese alligator in a semi-natural facility in southern China. Our study focused on two captive generations including an old breeding generation captured from the wild and a generation composed of their F1 offspring. Median oviposition date shifted to earlier in the year and mean clutch size was larger for both generations as the monthly mean air temperature in April increased over the 19 years of data collection. We observed a mean advance in oviposition date of 10 days for the old breeding generation from 1987 to 2005 and 8 days for both generations from 1991 to 2005. Correspondingly, clutch sizes for the two generations also increased during this period. There were no differences in median oviposition dates and clutch sizes between the two generations from 1991 to 2005. Our results suggest that Chinese alligators have responded to increasing global temperatures. Our findings also suggest that recent increasing global temperatures have the potential to have a substantial effect on Chinese alligator populations in the wild, thus prompting an urgent need for field monitoring of the effects of global warming on this endangered alligator species. en_US
dc.language en_US
dc.publisher Wiley-Blackwell Publishing, Inc en_US
dc.relation.isbasedon http://dx.doi.org/10.1111/j.1469-1795.2009.00232.x en_US
dc.title Climate warming and reproduction in Chinese alligators en_US
dc.parent Animal Conservation en_US
dc.journal.volume 12 en_US
dc.journal.number 2 en_US
dc.publocation Malden en_US
dc.identifier.startpage 128 en_US
dc.identifier.endpage 137 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060800 en_US
dc.personcode 0000052156 en_US
dc.personcode 0000020160 en_US
dc.personcode 0000027703 en_US
dc.personcode 010046 en_US
dc.percentage 100 en_US
dc.classification.name Zoology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISI:000264378600008 en_US
dc.description.keywords climate warming; oviposition date; clutch size; phenology; Chinese alligators; conservation en_US
dc.staffid 010046 en_US


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