Arid
DOI10.1890/09-0801.1
Assessing spatial and temporal population dynamics of cryptic species: an example with the European pond turtle
Olivier, Anthony2,3; Barbraud, Christophe1; Rosecchi, Elisabeth2; Germain, Christophe2; Cheylan, Marc3
通讯作者Barbraud, Christophe
来源期刊ECOLOGICAL APPLICATIONS
ISSN1051-0761
EISSN1939-5582
出版年2010
卷号20期号:4页码:993-1004
英文摘要

Within the current context of biodiversity loss a number of biodiversity indicators have been developed to help measure the state of nature and how it is changing. However, most indicators are derived from bird populations. Reptiles and amphibians could be useful ecosystem indicators, but this requires obtaining precise and unbiased population parameters. This is a particularly challenging task for these two groups of species, because individuals are extremely difficult to detect for various reasons. We illustrate the use of a sampling and analytical method that explicitly takes into account imperfect detection to assess the population dynamics of a reptile species and its temporal and spatial variation. European pond turtles (Emys orbicularis) were sampled at two different locations during a 10-year study. The two sites differed by their water management regimes and number of livestock. At each site and for each sex, the data were modeled using a robust design capture-mark-recapture framework to obtain and compare estimates of survival, temporary emigration, time-specific abundance, density, and population growth rate, while taking into account effects of individual heterogeneity, trap-response, and time on capture probabilities. Temporary emigration was higher in males (0.344 +/- 0.046) (mean +/- SE) than in females (0.228 +/- 0.071), did not differ between sites for each sex, and was mainly Markovian. Apparent adult survival was higher in females (0.966 +/- 0.031) than in males (0.864 +/- 0.024), and was negatively related to the proportion of individuals with repaired shell fractures in the population. Average density was 63.7 +/- 6.6 turtles/km(2) but was higher for females (39.2 +/- 14.0 females/km(2)) than for males (23.5 +/- 5.7 males/km(2)). The population sizes of males and females decreased where long periods of artificial drought and the highest density of livestock occurred. This research highlights differences in demographic parameters according to sex and site in a turtle species, and it provides evidence that significant human-induced disturbance represents a potential risk to European pond turtle populations. The sampling and analytical approaches illustrated in this study are applicable to many other species of reptiles and amphibians, and estimated population parameters could be combined to produce population indicators useful for conservation and management.


英文关键词Camargue capture-recapture cattle grazing demographic parameters Emys orbicularis European pond turtle population dynamics robust design survival probability temporary emigration
类型Article
语种英语
国家France
收录类别SCI-E
WOS记录号WOS:000278865200008
WOS关键词CAPTURE-RECAPTURE DATA ; FEMALE DESERT TORTOISES ; EMYS-ORBICULARIS ; ROBUST DESIGN ; BIOLOGICAL DIVERSITY ; REPRODUCTIVE EFFORT ; HERMANNS TORTOISE ; ADULT SURVIVAL ; MARKED ANIMALS ; EMIGRATION
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构French National Research Institute for Sustainable Development
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/163879
作者单位1.CNRS, UPR 1934, Ctr Etud Biol Chize, F-79360 Villiers En Bois, France;
2.Stn Biol Tour Valat, F-13200 Arles, France;
3.CEFE CNRS, UMR 5175, Ecole Prat Hautes Etud, F-34293 Montpellier, France
推荐引用方式
GB/T 7714
Olivier, Anthony,Barbraud, Christophe,Rosecchi, Elisabeth,et al. Assessing spatial and temporal population dynamics of cryptic species: an example with the European pond turtle[J]. French National Research Institute for Sustainable Development,2010,20(4):993-1004.
APA Olivier, Anthony,Barbraud, Christophe,Rosecchi, Elisabeth,Germain, Christophe,&Cheylan, Marc.(2010).Assessing spatial and temporal population dynamics of cryptic species: an example with the European pond turtle.ECOLOGICAL APPLICATIONS,20(4),993-1004.
MLA Olivier, Anthony,et al."Assessing spatial and temporal population dynamics of cryptic species: an example with the European pond turtle".ECOLOGICAL APPLICATIONS 20.4(2010):993-1004.
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