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Related Experiment Videos

Advances in methods for estimating stopover duration for migratory species using capture-recapture data.

S Guérin1,2,3, D Picard2, R Choquet1

  • 1Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175, Campus CNRS, 1919 route de Mende, 34293, Montpellier Cedex 5, France.

Ecological Applications : a Publication of the Ecological Society of America
|April 5, 2017
PubMed
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Estimating migratory species' habitat use is key for ecology and conservation. New capture-recapture models reveal female marbled newts spend longer in breeding ponds than males, aiding evolutionary insights.

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Conservation Biology

Background:

  • Migratory species exhibit life cycles divided into distinct stages across varied habitats.
  • Accurate estimation of time spent in each habitat is vital for understanding individual behavior and informing conservation strategies.
  • Capture-recapture sampling offers methods to estimate stopover duration and site-specific arrival/departure probabilities.

Purpose of the Study:

  • To review existing models for estimating migratory species' stopover duration.
  • To demonstrate the application of advanced modeling techniques using a novel dataset of marbled newts (Triturus marmoratus).
  • To provide a practical guide for implementing these methods in E-SURGE software.

Main Methods:

  • Utilized capture-recapture data from marbled newts.
Keywords:
Triturus marmoratusE-SURGEmarbled newtmultievent modelsrecruitmentrentention probabilityreproductive trade-offsemi-Markov modelstime-elapsed-since-arrival models

Related Experiment Videos

  • Employed time-dependent and time-elapsed-since-arrival effects, incorporating Markovian and semi-Markov processes.
  • Modeled stopover duration, arrival, and departure probabilities, comparing model performance.

    • Main Results:

    • Identified a significant sex-based difference in stopover duration: females averaged 5.63 weeks, males 3.03 weeks.
    • Retention probability in breeding ponds was primarily influenced by the duration of stay.
    • Individuals of the same sex exhibited similar durations in ponds, arriving sequentially rather than simultaneously.

    Conclusions:

    • The applied methods are flexible and valuable for evolutionary ecology and conservation biology.
    • Understanding sex-specific habitat use patterns is crucial for effective conservation of migratory species.
    • The study highlights the utility of advanced statistical models for ecological research.