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Within-river genetic connectivity patterns reflect contrasting geomorphology

Citation

Waters, JM and Craw, D and Burridge, CP and Kennedy, M and King, TM and Wallis, GP, Within-river genetic connectivity patterns reflect contrasting geomorphology, Journal of Biogeography, 42, (12) pp. 2452-2460. ISSN 0305-0270 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 John Wiley & Sons Ltd.

DOI: doi:10.1111/jbi.12608

Abstract

Aim

To test the hypothesis that geomorphological features, shaped by underlying geology, can influence within-river connectivity patterns in freshwater-limited fishes.

Location

Rivers draining the eastern flanks of the Southern Alps in South Island, New Zealand.

Methods

We analyse up to 1624 bp of mtDNA from 499 ‘flathead’ Galaxias specimens from 145 localities across 14 different river systems. Variation among sampling sites within systems is characterized using ϕ statistics.

Results

Although similar levels of DNA sequence variation were detected in all rivers sampled, spatial partitioning of this variation was significantly greater within schist (n = 5; mean ϕST = 0.696) than within greywacke (n = 10; mean ϕST = 0.268) rivers.

Main conclusions

Population connectivity can be strongly influenced by underlying geology, leading to profound differences in the connectivity, phylogeography and diversity of riverine species.

Item Details

Item Type:Refereed Article
Keywords:biogeography, braided rivers, diversity, galaxiid, genetics, geology, mtDNA, New Zealand, phylogeography, population genetics
Research Division:Biological Sciences
Research Group:Evolutionary Biology
Research Field:Biogeography and Phylogeography
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Burridge, CP (Dr Christopher Burridge)
ID Code:105365
Year Published:2015
Web of Science® Times Cited:3
Deposited By:Zoology
Deposited On:2015-12-21
Last Modified:2016-09-20
Downloads:0

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