The subterranean environment, a dead end or an opportunity?

The subterranean environment, a dead end or an opportunity?

Trabajo presentado en la CALPE Conference (Caves as Archives. Gibraltar, a case study), celebrada en Gibraltar del 14 al 17 de septiembre de 2013.

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Main Authors: Ribera, Ignacio, Abellán, Pedro
Format: comunicación de congreso biblioteca
Published: 2013-09
Online Access:http://hdl.handle.net/10261/107846
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spelling dig-ibe-es-10261-1078462017-10-10T12:15:17Z The subterranean environment, a dead end or an opportunity? Ribera, Ignacio Abellán, Pedro Trabajo presentado en la CALPE Conference (Caves as Archives. Gibraltar, a case study), celebrada en Gibraltar del 14 al 17 de septiembre de 2013. The high degree of specialization of cave organisms, with extreme morphological and physiological modifications, has attracted the attention of naturalists and evolutionary biologist for more than two centuries. The common assumption is that the lack eyes and wings (in insects), and the general loss of regulatory mechanisms to avoid dehydration typical of cave organisms confine them to the deep subterranean environment, in an evolutionary dead end with extinction as the only possible outcome. Recent work on two Pyrenean groups of subterranean beetles (Trechini and Leptodirini) suggests that, far from being a dead end, the colonization of the subterranean environment may represent an opportunity for diversification. In this talk I will illustrate this with two examples from work in which I have participated. In the first, a genus deeply nested within a clade of exclusively subterranean species is shown to have expanded its range from the Pyrenees to colonize some karstic areas of the Catalonian coast, and subsequently radiate in them. In the second, we found that one of the most extreme adaptations of subterranean insects, the shortening of the life cycle with the development of a large, single instar non-feeding larva had a unique origin. This implies that diversification occurred after the development of this specialization, and, actually, we found that it did happen at a higher rate that that of the non-modified lineages that retained the ancestral state of an active, three instar larvae or a less modified stage of a still active, two instar larvae. Peer Reviewed 2014-11-20T13:09:37Z 2014-11-20T13:09:37Z 2013-09 2014-11-20T13:09:37Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 CALPE Conference (2013) http://hdl.handle.net/10261/107846 none
institution IBE ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ibe-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IBE España
description Trabajo presentado en la CALPE Conference (Caves as Archives. Gibraltar, a case study), celebrada en Gibraltar del 14 al 17 de septiembre de 2013.
format comunicación de congreso
author Ribera, Ignacio
Abellán, Pedro
spellingShingle Ribera, Ignacio
Abellán, Pedro
The subterranean environment, a dead end or an opportunity?
author_facet Ribera, Ignacio
Abellán, Pedro
author_sort Ribera, Ignacio
title The subterranean environment, a dead end or an opportunity?
title_short The subterranean environment, a dead end or an opportunity?
title_full The subterranean environment, a dead end or an opportunity?
title_fullStr The subterranean environment, a dead end or an opportunity?
title_full_unstemmed The subterranean environment, a dead end or an opportunity?
title_sort subterranean environment, a dead end or an opportunity?
publishDate 2013-09
url http://hdl.handle.net/10261/107846
work_keys_str_mv AT riberaignacio thesubterraneanenvironmentadeadendoranopportunity
AT abellanpedro thesubterraneanenvironmentadeadendoranopportunity
AT riberaignacio subterraneanenvironmentadeadendoranopportunity
AT abellanpedro subterraneanenvironmentadeadendoranopportunity
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