Altitudinal gradients in Magellanic sub-Antarctic lagoons: the effect of elevation on freshwater macroinvertebrate diversity and distribution

In this article, freshwater macroinvertebrate diversity associated with lakes and ponds along the altitudinal gradient of a Magellanic sub-Antarctic watershed are assessed. A monotonic decline in species richness was observed with increasing elevation, with simpler and more even community compositio...

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Bibliographic Details
Published in:PeerJ
Main Authors: Rendoll Cárcamo, Javier, Contador, Tamara, Gañán, Melisa, Pérez Troncoso, Carolina, Maldonado Márquez, Alan, Convey, Peter, Kennedy, James H., Rozzi, Ricardo
Format: Article in Journal/Newspaper
Language:English
Published: PeerJ 2019
Subjects:
elevation gradients
sub-Antarctic
littoral invertebrates
southern Chile
Antarctic
Antarc*
Online Access:https://doi.org/10.7717/peerj.7128
https://digital.library.unt.edu/ark:/67531/metadc1705548/
Description
Summary:In this article, freshwater macroinvertebrate diversity associated with lakes and ponds along the altitudinal gradient of a Magellanic sub-Antarctic watershed are assessed. A monotonic decline in species richness was observed with increasing elevation, with simpler and more even community composition at higher altitude. This pattern differs from the mid-peak trend found in streams of the same watershed. Functional feeding group structure also diminished with increasing elevation.

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