Publication Repository

The effect of incubation temperatures on nest success of flatback sea turtles (Natator depressus)

Show simple item record

dc.contributor Australian Institute Of Marine Science
dc.contributor Indian Ocean Marine Res Ctr
dc.contributor University Of Western Australia
dc.contributor Univ Western Australia
dc.contributor Rio Tinto Pilbara Ports
dc.contributor Rio Tinto
dc.contributor Australian Inst Marine Sci
dc.contributor Uwa Oceans Inst M096
dc.contributor Sch Anim Biol
dc.contributor Uwa Oceans Inst
dc.contributor.author THUMS, MICHELE
dc.contributor.author VAN LOHUIZEN, STEPHANIE
dc.contributor.author ROSSENDELL, JASON
dc.contributor.author MITCHELL, NICOLA J.
dc.date.accessioned 2017-03-21T00:44:50Z
dc.date.accessioned 2016-07-05T04:49:10Z
dc.date.accessioned 2016-07-05T04:49:10Z
dc.date.accessioned 2019-05-09T01:05:34Z
dc.date.available 2017-03-21T00:44:50Z
dc.date.available 2017-03-21T00:44:50Z
dc.date.available 2016-07-05T04:49:10Z
dc.date.available 2019-05-09T01:05:34Z
dc.date.issued 2016-07-01
dc.identifier.citation van Lohuizen S, Rossendell J, Mitchell NJ, Thums M (2016) The effect of incubation temperatures on nest success of flatback sea turtles (Natator depressus). Marine Biology 163(7): 150 en_US
dc.identifier.issn 0025-3162
dc.identifier.uri http://epubs.aims.gov.au/11068/12818
dc.description.abstract Oviparous species are threatened in a warming world if their nesting distribution does not change or if they cannot adapt to changing environmental conditions. Consequently, documenting the thermal characteristics of nests and nesting habitats is an important area of research for threatened species, as is the identification of temperatures that embryos are unable to tolerate. Here we used generalised additive mixed models to examine the relationship between nest success (hatching success, emergence success and late-stage mortality) and nest temperature, nest depth and clutch size of flatback sea turtles (Natator depressus) collected over three breeding seasons (2012/2013-2014/2015) at an island rookery (Delambre Island, 20 degrees 26'56.38 '' S, 117 degrees 4'42.29 degrees E) and on a nearby mainland rookery (Bells Beach, 20 degrees 36'51.77 '' S, 117 degrees 9'7.55 '' E) in north-western Australia. We also examined seasonal and rookery differences in nest success with data collected over six breeding seasons (2009/2010-2014/2015). Mean nest temperature over the entire incubation period was the best predictor of hatching success and emergence success (explaining 37.15 and 39.15 % deviance in results, respectively), with both variables declining beyond about 32.5 degrees C. Mean temperature in the final third of incubation was the best predictor of late-stage mortality, explaining 73.91 % deviance with mortality increasing when nest temperatures exceeded 34 degrees C. Our results provide important data for identifying the optimum conditions for embryonic survival in this species, thereby aiding the assessment of the vulnerability of this Data Deficient species to global warming.
dc.description.sponsorship This research was funded by Rio Tinto and the School of Animal Biology at the University of Western Australia. Animal ethics approval was obtained from the University of Western Australia Animal Ethics Committee (RA/3/100/1288) and was conducted in compliance with the Australian Code of Practise for the Use of Animals for Scientific Research (DPaW Reg 17: permit numbers SF009999 and SF010000). We thank Rebecca Fisher for assistance in implementing generalised additive models.
dc.description.sponsorship This research was funded by Rio Tinto and the School of Animal Biology at the University of Western Australia. Animal ethics approval was obtained from the University of Western Australia Animal Ethics Committee (RA/3/100/1288) and was conducted in compliance with the Australian Code of Practise for the Use of Animals for Scientific Research (DPaW Reg 17: permit numbers SF009999 and SF010000). en_US
dc.description.uri http://link.springer.com/article/10.1007/s00227-016-2917-8 en_US
dc.language English
dc.language.iso en en_US
dc.publisher Springer Link en_US
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Rookery
dc.subject Embryos
dc.subject Marine Turtles
dc.subject Climate-change
dc.subject Caretta-caretta Nests
dc.subject Western-australia
dc.subject Population
dc.subject Marine & Freshwater Biology
dc.subject Chelonia-mydas
dc.subject Heron Island
dc.title The effect of incubation temperatures on nest success of flatback sea turtles (Natator depressus)
dc.type journal article en_US
dc.identifier.doi 10.1007/s00227-016-2917-8
dc.identifier.wos WOS:000379528900005


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Publication


Browse

My Account