Incorporating non-stationary spatial variability into dynamic species distribution models

نویسندگان

چکیده

Abstract Ecologists and fisheries scientists are faced with forecasting the ecological responses of non-stationary processes resulting from climate change other drivers. While much is known about temporal change, vis-à-vis species distributional shifts, less how spatial variability in population structure changes through time response to trends A experiencing decreasing would be expected more evenly spatially distributed over time, an increasing trend correspond greater extremes or patchiness. We implement a new approach for modelling this spatiotemporal R package sdmTMB. As real-world application, we focus on long-term groundfish monitoring dataset, west coast USA. Focusing 36 highest densities, compare our model dynamic variance constant variance. Of examined, 13 had evidence support patchiness, including darkblotched rockfish, lingcod, petrale sole. Species appearing uniformly included: Dover sole, Pacific ocean perch, Dungeness crab. Letting variation generally results small differences estimates, but larger estimated precision.

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ژورنال

عنوان ژورنال: Ices Journal of Marine Science

سال: 2022

ISSN: ['1095-9289', '1054-3139']

DOI: https://doi.org/10.1093/icesjms/fsac179