Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina

Tangle-veined flies (Nemestrinidae) constitute a primitive and rather widespread family among Diptera. The genus Trichophthalma occurs in Australia and South America and is the only one in the family with a typically Gondwanian, disjoint distribution. The ecology and distribution of most southern So...

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Autores principales:	DEVOTO,MARIANO, MEDAN,DIEGO
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2006
Materias:	Diptera Nemestrinidae Trichophthalma pollination Patagonia
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000100003
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spelling	oai:scielo:S0716-078X20060001000032006-04-25Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, ArgentinaDEVOTO,MARIANOMEDAN,DIEGO Diptera Nemestrinidae Trichophthalma pollination Patagonia Tangle-veined flies (Nemestrinidae) constitute a primitive and rather widespread family among Diptera. The genus Trichophthalma occurs in Australia and South America and is the only one in the family with a typically Gondwanian, disjoint distribution. The ecology and distribution of most southern South American species of this genus remains virtually unknown. We studied the diversity, distribution and flower specificity of flower-visiting species of the genus Trichophthalma in the temperate forests of southern South America in ten sites along an east-west rainfall gradient (37-40°S) on the eastern slope of the Andes. We recorded nine species of Trichophthalma, which showed an overlapped distribution along the gradient and different degrees of floral specificity. Three species are reported for Argentina for the first time and three are first recorded as flower visitors to the local flora. Our results show that while in southern Africa tangle-veined flies are engaged in highly specialized pollination interactions with long-tubed species, the Trichophthalma spp. of Patagonia share their flowers with a diverse and rather unspecialized visitor fauna among which several species of flies, bees and birds are presentinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.79 n.1 20062006-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000100003en10.4067/S0716-078X2006000100003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Diptera Nemestrinidae Trichophthalma pollination Patagonia
spellingShingle	Diptera Nemestrinidae Trichophthalma pollination Patagonia DEVOTO,MARIANO MEDAN,DIEGO Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
description	Tangle-veined flies (Nemestrinidae) constitute a primitive and rather widespread family among Diptera. The genus Trichophthalma occurs in Australia and South America and is the only one in the family with a typically Gondwanian, disjoint distribution. The ecology and distribution of most southern South American species of this genus remains virtually unknown. We studied the diversity, distribution and flower specificity of flower-visiting species of the genus Trichophthalma in the temperate forests of southern South America in ten sites along an east-west rainfall gradient (37-40°S) on the eastern slope of the Andes. We recorded nine species of Trichophthalma, which showed an overlapped distribution along the gradient and different degrees of floral specificity. Three species are reported for Argentina for the first time and three are first recorded as flower visitors to the local flora. Our results show that while in southern Africa tangle-veined flies are engaged in highly specialized pollination interactions with long-tubed species, the Trichophthalma spp. of Patagonia share their flowers with a diverse and rather unspecialized visitor fauna among which several species of flies, bees and birds are present
author	DEVOTO,MARIANO MEDAN,DIEGO
author_facet	DEVOTO,MARIANO MEDAN,DIEGO
author_sort	DEVOTO,MARIANO
title	Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
title_short	Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
title_full	Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
title_fullStr	Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
title_full_unstemmed	Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina
title_sort	diversity, distribution and floral specificity of tangle-veined flies (diptera: nemestrinidae) in north west patagonia, argentina
publisher	Sociedad de Biología de Chile
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000100003
work_keys_str_mv	AT devotomariano diversitydistributionandfloralspecificityoftangleveinedfliesdipteranemestrinidaeinnorthwestpatagoniaargentina AT medandiego diversitydistributionandfloralspecificityoftangleveinedfliesdipteranemestrinidaeinnorthwestpatagoniaargentina
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Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae) in north west Patagonia, Argentina

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