We are studying how foxes and birds feed from feeders aimed at Livestock Protection Dogs in Tierra del Fuego. We want to look at time between visits to assess dependence of visits. Can anybody supply references dealing with this kind of data?

Russ Van Horn

@russvanhorn

San Diego Zoo Global

24 March 2023 6:20pm

Adrían - You might try looking at the methods for analyzing temporal interactions described in these two papers. These will hopefully provide you a starting point into the literature. Best wishes - Russ

Rahel Sollmann. 2018. A gentle introduction to camera-trap data analysis. African Journal of Ecology. https://doi.org/10.1111/aje.12557

Justin P Suraci, et al. 2022. Beyond spatial overlap: harnessing new technologies to resolve the complexities of predator–prey interactions. Oikos. https://doi.org/10.1111/oik.09004

Yvan Satgé

@YvanSG | he/him

Clemson University

Seabird ecologist at Clemson University, South Carolina Cooperative Fish and Wildlife Research Unit. Co-chair of Caribbean Seabird Working Group.

6 April 2023 3:49pm

Hi Adrián,

Are you looking at ways to categorize visits as independent? or the methodology and theory of independence?

If you simply want a way to categorize visits, software managing camera trap images sometimes have this option. For example, Camelot can assess independence based on a time threshold.

https://camelot-project.readthedocs.io/en/latest/reports.html?highlight=independent#independent-observations

Eduardo Zanette

@edmizac

MSc. in Ecology, Evolution and Biodiversity. Biologist, cyclist, tech/prog metal fan

6 April 2023 6:24pm

Hi Adrián,

Bracis et al. {recurse} package in R allow those time between visits comparisons. I had problems running the package with my data, though.

Revisitation analysis uncovers spatio‐temporal patterns in animal movement data

Analyze difference in time events in camera trap data

Adrián Schiavini

Groups