The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)

Populations of the ground beetle Scaphinotus petersi are isolated in subalpine conifer forest habitats on mountain ranges or Sky Islands in southeastern Arizona. Previous work on this species has suggested these populations have been isolated since the last post-glacial maximum times as warming caus...

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Main Authors: Karen Ober, Brian Matthews, Abigail Ferrieri, Sonia Kuhn
Format: Article
Language:English
Published: Pensoft Publishers 2011-11-01
Series:ZooKeys
Online Access:http://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=2967
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author Karen Ober
Brian Matthews
Abigail Ferrieri
Sonia Kuhn
author_facet Karen Ober
Brian Matthews
Abigail Ferrieri
Sonia Kuhn
author_sort Karen Ober
collection DOAJ
description Populations of the ground beetle Scaphinotus petersi are isolated in subalpine conifer forest habitats on mountain ranges or Sky Islands in southeastern Arizona. Previous work on this species has suggested these populations have been isolated since the last post-glacial maximum times as warming caused this cool adapted species to retreat to high elevations. To test this hypothesis, we inferred the phylogeny from mitochondrial DNA sequence data from several Arizona Sky Island populations of S. petersi and estimated the divergence time of the currently isolated populations. We found two major clades of S. petersi, an eastern clade and a western group. Our results indicated most mountain ranges form clades except the Huachucas, which are polyphyletic and the Santa Catalinas, which are paraphyletic. We estimated the Pinaleño population is much older than the last glacial maximum, but the Huachuca and Pinal populations may have been fragmented from the Santa Catalina population since the post-glacial maximum times.
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spelling doaj.art-07b184e3734d4d31bafa53409af33b202022-12-21T23:34:38ZengPensoft PublishersZooKeys1313-29891313-29702011-11-01147018319710.3897/zookeys.147.20242967The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)Karen OberBrian MatthewsAbigail FerrieriSonia KuhnPopulations of the ground beetle Scaphinotus petersi are isolated in subalpine conifer forest habitats on mountain ranges or Sky Islands in southeastern Arizona. Previous work on this species has suggested these populations have been isolated since the last post-glacial maximum times as warming caused this cool adapted species to retreat to high elevations. To test this hypothesis, we inferred the phylogeny from mitochondrial DNA sequence data from several Arizona Sky Island populations of S. petersi and estimated the divergence time of the currently isolated populations. We found two major clades of S. petersi, an eastern clade and a western group. Our results indicated most mountain ranges form clades except the Huachucas, which are polyphyletic and the Santa Catalinas, which are paraphyletic. We estimated the Pinaleño population is much older than the last glacial maximum, but the Huachuca and Pinal populations may have been fragmented from the Santa Catalina population since the post-glacial maximum times.http://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=2967
spellingShingle Karen Ober
Brian Matthews
Abigail Ferrieri
Sonia Kuhn
The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
ZooKeys
title The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
title_full The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
title_fullStr The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
title_full_unstemmed The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
title_short The evolution and age of populations of Scaphinotus petersi Roeschke on Arizona Sky Islands (Coleoptera, Carabidae, Cychrini)
title_sort evolution and age of populations of scaphinotus petersi roeschke on arizona sky islands coleoptera carabidae cychrini
url http://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=2967
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