First evidence for a massive extinction event affecting bees close to the K-T boundary.

Bees and eudicot plants both arose in the mid-late Cretaceous, and their co-evolutionary relationships have often been assumed as an important element in the rise of flowering plants. Given the near-complete dependence of bees on eudicots we would expect that major extinction events affecting the la...

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Autores principales:	Sandra M Rehan, Remko Leys, Michael P Schwarz
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/960a8d93892b4653a911113f99634d1d
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spelling	oai:doaj.org-article:960a8d93892b4653a911113f99634d1d2021-11-18T08:49:52ZFirst evidence for a massive extinction event affecting bees close to the K-T boundary.1932-620310.1371/journal.pone.0076683https://doaj.org/article/960a8d93892b4653a911113f99634d1d2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24194843/?tool=EBIhttps://doaj.org/toc/1932-6203Bees and eudicot plants both arose in the mid-late Cretaceous, and their co-evolutionary relationships have often been assumed as an important element in the rise of flowering plants. Given the near-complete dependence of bees on eudicots we would expect that major extinction events affecting the latter would have also impacted bees. However, given the very patchy distribution of bees in the fossil record, identifying any such extinctions using fossils is very problematic. Here we use molecular phylogenetic analyses to show that one bee group, the Xylocopinae, originated in the mid-Cretaceous, coinciding with the early radiation of the eudicots. Lineage through time analyses for this bee subfamily show very early diversification, followed by a long period of seemingly no radiation and then followed by rapid diversification in each of the four constituent tribes. These patterns are consistent with both a long-fuse model of radiation and a massive extinction event close to the K-T boundary. We argue that massive extinction is much more plausible than a long fuse, given the historical biogeography of these bees and the diversity of ecological niches that they occupy. Our results suggest that events near the K-T boundary would have disrupted many plant-bee relationships, with major consequences for the subsequent evolution of eudicots and their pollinators.Sandra M RehanRemko LeysMichael P SchwarzPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e76683 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sandra M Rehan Remko Leys Michael P Schwarz First evidence for a massive extinction event affecting bees close to the K-T boundary.
description	Bees and eudicot plants both arose in the mid-late Cretaceous, and their co-evolutionary relationships have often been assumed as an important element in the rise of flowering plants. Given the near-complete dependence of bees on eudicots we would expect that major extinction events affecting the latter would have also impacted bees. However, given the very patchy distribution of bees in the fossil record, identifying any such extinctions using fossils is very problematic. Here we use molecular phylogenetic analyses to show that one bee group, the Xylocopinae, originated in the mid-Cretaceous, coinciding with the early radiation of the eudicots. Lineage through time analyses for this bee subfamily show very early diversification, followed by a long period of seemingly no radiation and then followed by rapid diversification in each of the four constituent tribes. These patterns are consistent with both a long-fuse model of radiation and a massive extinction event close to the K-T boundary. We argue that massive extinction is much more plausible than a long fuse, given the historical biogeography of these bees and the diversity of ecological niches that they occupy. Our results suggest that events near the K-T boundary would have disrupted many plant-bee relationships, with major consequences for the subsequent evolution of eudicots and their pollinators.
format	article
author	Sandra M Rehan Remko Leys Michael P Schwarz
author_facet	Sandra M Rehan Remko Leys Michael P Schwarz
author_sort	Sandra M Rehan
title	First evidence for a massive extinction event affecting bees close to the K-T boundary.
title_short	First evidence for a massive extinction event affecting bees close to the K-T boundary.
title_full	First evidence for a massive extinction event affecting bees close to the K-T boundary.
title_fullStr	First evidence for a massive extinction event affecting bees close to the K-T boundary.
title_full_unstemmed	First evidence for a massive extinction event affecting bees close to the K-T boundary.
title_sort	first evidence for a massive extinction event affecting bees close to the k-t boundary.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/960a8d93892b4653a911113f99634d1d
work_keys_str_mv	AT sandramrehan firstevidenceforamassiveextinctioneventaffectingbeesclosetothektboundary AT remkoleys firstevidenceforamassiveextinctioneventaffectingbeesclosetothektboundary AT michaelpschwarz firstevidenceforamassiveextinctioneventaffectingbeesclosetothektboundary
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First evidence for a massive extinction event affecting bees close to the K-T boundary.

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