Incorporating spatial constraints in different periods of the annual cycle improves species distribution model performance for a highly mobile bird species

Despite its theoretical relationship, the effect of body size on the performance of species distribution models (SDM) has only been assessed in a few studies of terrestrial taxa. We aim to assess the effect of body size on the performance of SDM in river fish. We study seven Chilean freshwater fish, using models trained with three different sets of predictor variables: ecological (Eco), anthropogenic (Antr) and both (Eco+Antr). Our results indicate that the performance of the Eco+Antr models improves with fish size. These results highlight the importance of two novel predictive layers: the source of river flow and the overproduction of biotopes by anthropogenic activities. We compare our work with previous studies that modeled river fish, and observe a similar relationship in most cases. We discuss the current challenges of the modeling of riverine species, and how our work helps suggest possible solutions.

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Creating individual accessible area hypotheses improves stacked species distribution model performance

Global Ecology and Biogeography ◽

10.1111/geb.12678 ◽

2017 ◽

Vol 27 (1) ◽

pp. 156-165 ◽

Cited By ~ 26

Author(s):

Jacob C. Cooper ◽

Jorge Soberón

Keyword(s):

Species Distribution ◽

Species Distribution Model ◽

Model Performance ◽

Distribution Model ◽

Accessible Area

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Assessing the effect of fish size on species distribution model performance in southern Chilean rivers

10.7287/peerj.preprints.26874v1 ◽

2018 ◽

Author(s):

Daniel Zamorano ◽

Fabio Labra ◽

Marcelo Villarroel ◽

Luca Mao ◽

Shaw Lucy ◽

...

Keyword(s):

Body Size ◽

Species Distribution ◽

River Flow ◽

Species Distribution Model ◽

Anthropogenic Activities ◽

Model Performance ◽

Distribution Model ◽

Distribution Models ◽

Fish Size ◽

River Fish

Despite its theoretical relationship, the effect of body size on the performance of species distribution models (SDM) has only been assessed in a few studies of terrestrial taxa. We aim to assess the effect of body size on the performance of SDM in river fish. We study seven Chilean freshwater fish, using models trained with three different sets of predictor variables: ecological (Eco), anthropogenic (Antr) and both (Eco+Antr). Our results indicate that the performance of the Eco+Antr models improves with fish size. These results highlight the importance of two novel predictive layers: the source of river flow and the overproduction of biotopes by anthropogenic activities. We compare our work with previous studies that modeled river fish, and observe a similar relationship in most cases. We discuss the current challenges of the modeling of riverine species, and how our work helps suggest possible solutions.

Download Full-text