Spatial occupancy models for data collected on stream networks

Olivier Gimenez

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arXiv · 2409.10017

Spatial occupancy models for data collected on stream networks

Olivier Gimenez

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Abstract

To effectively monitor biodiversity in streams and rivers, we need to quantify species distribution accurately. Occupancy models are useful for distinguishing between the non-detection of a species and its actual absence. While these models can account for spatial autocorrelation, they are not suited for streams and rivers due to their unique network spatial structure. Here, I propose spatial occupancy models specifically designed for data collected on stream and river networks. I present the statistical developments and illustrate their application using data on a semi-aquatic mammal. Overall, spatial stream network occupancy models offer a robust method for assessing biodiversity in freshwater ecosystems.

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Olivier Gimenez. 2024-09-16. Spatial occupancy models for data collected on stream networks. https://arxiv.org/abs/2409.10017

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