The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)

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Oceanic archipelagoes, by their young origin and isolation, provide privileged settings to study the origin and diversification of species. Here, we study the anyphaenid spider genus Philisca, endemic to the Valdivian temperate rainforest, which includes species living both on the mainland as well a...

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Autores principales: Soto, E.M., Labarque, F.M., Ceccarelli, F.S., Arnedo, M.A., Pizarro-Araya, J., Ramírez, M.J.
Formato: JOUR
Materias:
Biogeography
Phylogenetic
Rapid diversification
Robinson Crusoe Island
Spiders
animal
classification
ecosystem
geography
island (geological)
phylogeny
spider
statistical model
Animals
Ecosystem
Geography
Islands
Likelihood Functions
Phylogeny
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10557903_v107_n_p132_Soto
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_10557903_v107_n_p132_Soto2023-10-03T16:00:47Z The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae) Soto, E.M. Labarque, F.M. Ceccarelli, F.S. Arnedo, M.A. Pizarro-Araya, J. Ramírez, M.J. Biogeography Phylogenetic Rapid diversification Robinson Crusoe Island Spiders animal classification ecosystem geography island (geological) phylogeny spider statistical model Animals Ecosystem Geography Islands Likelihood Functions Phylogeny Spiders Oceanic archipelagoes, by their young origin and isolation, provide privileged settings to study the origin and diversification of species. Here, we study the anyphaenid spider genus Philisca, endemic to the Valdivian temperate rainforest, which includes species living both on the mainland as well as on the Robison Crusoe Island in the Juan Fernández archipelago. Anyphaenids, as many spiders, are potentially good colonizers due their ability for ballooning, an airborne dispersal mediated by strands of silk that are caught in the wind. We use a molecular approach to estimate both the phylogenetic relationships and the timeframe of species diversification of Philisca, with the aim to infer its evolutionary history. We further estimate the rates of speciation on both the insular and continental Philisca species and score the microhabitat used by each species and their sizes as a proxy to evaluate ecological niche diversification within the island. Most analyses support the monophyly of Philisca, with the exclusion of Philisca tripunctata. Our results reveal colonization from a single lineage that postdated the origin of the island, followed by rapid (∼2 Ma) diversification. The ancestral microhabitat was most likely leaf-dwelling but we identify two independent microhabitat shifts. Our data provides evidence that Philisca has undergone an adaptive radiation on the Robison Crusoe Island. © 2016 Elsevier Inc. Fil:Soto, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Labarque, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ramírez, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10557903_v107_n_p132_Soto
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Biogeography
Phylogenetic
Rapid diversification
Robinson Crusoe Island
Spiders
animal
classification
ecosystem
geography
island (geological)
phylogeny
spider
statistical model
Animals
Ecosystem
Geography
Islands
Likelihood Functions
Phylogeny
Spiders
spellingShingle Biogeography
Phylogenetic
Rapid diversification
Robinson Crusoe Island
Spiders
animal
classification
ecosystem
geography
island (geological)
phylogeny
spider
statistical model
Animals
Ecosystem
Geography
Islands
Likelihood Functions
Phylogeny
Spiders
Soto, E.M.
Labarque, F.M.
Ceccarelli, F.S.
Arnedo, M.A.
Pizarro-Araya, J.
Ramírez, M.J.
The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
topic_facet Biogeography
Phylogenetic
Rapid diversification
Robinson Crusoe Island
Spiders
animal
classification
ecosystem
geography
island (geological)
phylogeny
spider
statistical model
Animals
Ecosystem
Geography
Islands
Likelihood Functions
Phylogeny
Spiders
description Oceanic archipelagoes, by their young origin and isolation, provide privileged settings to study the origin and diversification of species. Here, we study the anyphaenid spider genus Philisca, endemic to the Valdivian temperate rainforest, which includes species living both on the mainland as well as on the Robison Crusoe Island in the Juan Fernández archipelago. Anyphaenids, as many spiders, are potentially good colonizers due their ability for ballooning, an airborne dispersal mediated by strands of silk that are caught in the wind. We use a molecular approach to estimate both the phylogenetic relationships and the timeframe of species diversification of Philisca, with the aim to infer its evolutionary history. We further estimate the rates of speciation on both the insular and continental Philisca species and score the microhabitat used by each species and their sizes as a proxy to evaluate ecological niche diversification within the island. Most analyses support the monophyly of Philisca, with the exclusion of Philisca tripunctata. Our results reveal colonization from a single lineage that postdated the origin of the island, followed by rapid (∼2 Ma) diversification. The ancestral microhabitat was most likely leaf-dwelling but we identify two independent microhabitat shifts. Our data provides evidence that Philisca has undergone an adaptive radiation on the Robison Crusoe Island. © 2016 Elsevier Inc.
format JOUR
author Soto, E.M.
Labarque, F.M.
Ceccarelli, F.S.
Arnedo, M.A.
Pizarro-Araya, J.
Ramírez, M.J.
author_facet Soto, E.M.
Labarque, F.M.
Ceccarelli, F.S.
Arnedo, M.A.
Pizarro-Araya, J.
Ramírez, M.J.
author_sort Soto, E.M.
title The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
title_short The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
title_full The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
title_fullStr The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
title_full_unstemmed The life and adventures of an eight-legged castaway: Colonization and diversification of Philisca ghost spiders on Robinson Crusoe Island (Araneae, Anyphaenidae)
title_sort life and adventures of an eight-legged castaway: colonization and diversification of philisca ghost spiders on robinson crusoe island (araneae, anyphaenidae)
url http://hdl.handle.net/20.500.12110/paper_10557903_v107_n_p132_Soto
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