ESTIMATION OF SEX-AND AGE-RELATED SURVIVAL RATES IN A MICROTINE POPULATION

Abstract : Little is known about the sex-and age-related survival rates of microtine rodents. Thus, we used probabilistic models and recent software developments to estimate survival rates in a Mediterranean pine vole (Microtus duodecimcostatus) population studied by capture-recapture. Goodness-of-fit tests revealed that erratics (voles caught only once) were captured during every trapping-session. Removal of the erratics from the data was necessary for application of the Jolly-Seber model. The model selected according to parsimony criteria, which assumes higher survival rate for juvenile males than juvenile females. Survival rates were higher among adults of both sexes than among juveniles, but there was no influence of sex on adult survival rate. These variations of survival rates can be related to demographic traits of Mediterranean pine vole (relative abundance in different habitats, local population dynamics). Our data also suggest that the regional abundance of the Mediterranean pine vole is determined by "source-sink dynamics".
Complete list of metadatas

Cited literature [43 references]  Display  Hide  Download

https://hal.ird.fr/ird-02062359
Contributor : Emmanuel Paradis <>
Submitted on : Friday, March 8, 2019 - 5:54:17 PM
Last modification on : Monday, November 18, 2019 - 3:25:58 PM
Long-term archiving on : Monday, June 10, 2019 - 4:21:02 PM

File

Paradis_1993_JWM.pdf
Files produced by the author(s)

Identifiers

Citation

Emmanuel Paradis, Gérald Guedon, Roger Pradel. ESTIMATION OF SEX-AND AGE-RELATED SURVIVAL RATES IN A MICROTINE POPULATION. The Journal of Wildlife Management, 1993, 57 (1), pp.158. ⟨10.2307/3809012⟩. ⟨ird-02062359⟩

Share

Metrics

Record views

86

Files downloads

197