Scale-dependent influence of environmental variables on species distribution: A case study on five coastal benthic species in the Baltic Sea

40Citations
Citations of this article
154Readers
Mendeley users who have this article in their library.

Abstract

Statistical modelling can be used to relate biological survey data to environmental factors, thereby providing a basis for predictive mapping of species or communities. Although environmental variables vary and influence biota at different scales, models are often fitted without discussion of how scale dependency influences the results. In this study, we analysed the relative importance of environmental factors for the distribution of aquatic species as a function of extent, using data on the cover of five common benthic species (four macrophytes and one animal), from 1731 sites along the Swedish Baltic Sea coast. We modelled the cover and distribution of the five species in relation to salinity, depth, slope, wave exposure and substrate in scale steps from 25 to 1500 km, and analysed the relative contribution of the environmental variables to each species model. The average total deviance explained by the models was generally quite high, and decreased with increasing scale for all macrophyte species, while it increased for the animal, the Baltic Sea blue mussel Mytilus edulis. The relative contribution of different environmental variables changed with scale, and responses also differed between species. The average contribution of salinity increased for all species when moving from local to Baltic Sea scale, and for the Baltic Sea blue mussel it was the single most important factor at the Baltic Sea scale. The average contribution of depth decreased with increasing scale for all species. However, regardless of scale, depth was the most important environmental factor to explain the distribution of all but one of the investigated macrophyte species. This shows that fine scale predictor variables can be of major importance also for species distribution models covering large areas. © 2012 The Authors.

References Powered by Scopus

Generalized Additive Models: An Introduction with R

6536Citations
N/AReaders
Get full text

Predictive habitat distribution models in ecology

5976Citations
N/AReaders
Get full text

The problem of pattern and scale in ecology

5435Citations
N/AReaders
Get full text

Cited by Powered by Scopus

Metacommunity organisation, spatial extent and dispersal in aquatic systems: Patterns, processes and prospects

778Citations
N/AReaders
Get full text

A quantitative synthesis of the importance of variables used in MaxEnt species distribution models

293Citations
N/AReaders
Get full text

Benthos distribution modelling and its relevance for marine ecosystem management

125Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Nyström Sandman, A., Wikström, S. A., Blomqvist, M., Kautsky, H., & Isaeus, M. (2013). Scale-dependent influence of environmental variables on species distribution: A case study on five coastal benthic species in the Baltic Sea. Ecography, 36(3), 354–363. https://doi.org/10.1111/j.1600-0587.2012.07053.x

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 47

57%

Researcher 25

30%

Professor / Associate Prof. 6

7%

Lecturer / Post doc 4

5%

Readers' Discipline

Tooltip

Agricultural and Biological Sciences 48

51%

Environmental Science 35

37%

Earth and Planetary Sciences 8

9%

Engineering 3

3%

Save time finding and organizing research with Mendeley

Sign up for free