Acoustic telemetry data from bull sharks in Reunion Island and associated environnemental data

Animal movements are typically influenced by multiple environmental factors simultaneously and individuals vary in their response to this environmental heterogeneity. Therefore, understanding how environmental aspects, including biotic, abiotic and anthropogenic factors, influence the movements of wild animals is an important focus of wildlife research and conservation. We apply exponential random graph models (ERGMs) to analyse movement networks of a bull shark population in a network of acoustic receivers and identify the effects of environmental, social or other types of covariates on their movements. We found that intra- and interspecific factors often had stronger effects on movements than environmental variables. ERGMs proved to be a potentially useful tool for studying animal movement network data especially in the context of spatial attribute heterogeneity.

Disciplines

Fisheries and aquaculture, Human activities

Keywords

spatial-social interface, acoustic telemetry, Carcharhinus leucas, ERGM, movement networks, Indian Ocean, Reunion Island, shark

Location

-20.718743N, -21.577188S, 56.081876E, 54.963859W

Devices

Acoustic transmitters (Vemco V16, transmission interval 40–80 s, estimated battery life 845 days) were implanted into the peritoneal cavity of the individual bull sharks through a midventral incision.

Data

FileSizeFormatProcessingAccess
Data and R codes
849 Ko.ZIPProcessed data
How to cite
Mourier Johann, Soria Marc, Silk Matthew, Demichelis Angelique, Dagorn Laurent, Hattab Tarek (2024). Acoustic telemetry data from bull sharks in Reunion Island and associated environnemental data. SEANOE. https://doi.org/10.17882/99080
In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication :
Mourier Johann, Soria Marc, Silk Matthew, Demichelis Angelique, Dagorn Laurent, Hattab Tarek (2024). Both environmental conditions and intra- and interspecific interactions influence the movements of a marine predator. BioRxiv.

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