10.5061/DRYAD.9B4G92K
Ponchon, Aurore
French National Centre for Scientific Research
Choquet, Rémi
French National Centre for Scientific Research
Tornos, Jérémy
French National Centre for Scientific Research
McCoy, Karen D.
French National Centre for Scientific Research
Tveraa, Torkild
Norwegian Institute for Nature Research
Boulinier, Thierry
French National Centre for Scientific Research
Data from: Survival estimates strongly depend on capture-recapture designs
in a disturbed environment inducing dispersal
Dryad
dataset
2018
environmental disturbance
Individual behaviour
Rissa tridactyla
2018-04-09T03:21:19Z
2018-04-09T03:21:19Z
en
https://doi.org/10.1111/ecog.03334
11932842 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Capture‐Recapture (CR) approaches are extensively used to estimate
demographic parameters. Their robustness relies on the selection of
suitable statistical models, but also on the sampling design and effort
deployed in the field. In colonial or territorial species showing breeding
site fidelity, recurrent local perturbations, such as predation‐induced
breeding failure, may lead individuals to disperse locally or regionally.
This might induce heterogeneity in individual CR histories and biases in
demographic parameter estimates. Here, we assessed the effect of buffer
areas and multi‐site designs on annual survival estimate accuracy and
precision. First, using simulated data with and without a multi‐site
design, we compared survival estimates for different scenarios involving
contrasted local and regional dispersal. Then, using data from a local
multi‐site long‐term monitoring survey carried out in a colony of
black‐legged kittiwakes, we tested the homogeneity of individual CR
histories and compared survival estimates from three datasets including
one or several breeding cliffs with or without buffer areas. Results from
simulations highlighted that a single‐site design consistently led to
underestimated or less precise survival values compared to a multi‐site
design. Similarly, a multi‐site design allowed detecting significant
temporal trends while a single‐site one did not. In the field‐based study,
adding buffer areas reduced individual heterogeneity, but all three
datasets suffered from strong trap‐dependence possibly due to individual
breeding success affecting nest‐site fidelity. Implementing a multi‐site
design significantly improved the accuracy and precision of annual
survival estimates, regardless of CR models applied. Adapting the spatial
scale of sampling design to the local environment and species behaviour is
essential to provide robust parameters of key relevance for population
monitoring and management. We show that implementing buffer areas and/or
multi‐site designs may be especially beneficial for long‐lived species
facing regular local perturbation events leading to local dispersal.
Field-based and simulated datasetsThese are all the datasets used in the
simulated and field-based studies. The simulated data were obtained from
M-Surge software. The field-based data have been collected from a
long-term monitoring survey carried out in the black-legged kittiwake
colony of Hornøya, Norway.Field-based ans simulated datasets.zip
Norway
Eastern Finnmark
Hornøya