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A comprehensive trait dataset for Terrestrial Arthropods of the Azores: insight...

Oyarzabal da Silva, Guilherme; Rigal, François; Cardoso, Pedro; Amorim do Rosário, Isabel; Costa, Ricardo; Lhoumeau, Sébastien Georges André

ABSTRACT: Species functional traits provide critical insights into how organisms interact with and respond to their environment. Key characteristics, such as body size, dispersal ability and trophic specialisation influence species' survival, reproduction and adaptability. Island ecosystems, particularly oceanic archipelagos like the Azores, serve as ideal natural laboratories for studying these traits due to t...


Cryptic diversity in Azorean beetle genus Tarphius Erichson, 1845 (Coleoptera: ...

Borges, Paulo A. V.; Amorim, Isabel R.; Terzopoulou, Sofia; Rigal, François; Emerson, Brent C.; Serrano, Artur R. M.

Recent findings based on molecular data support the occurrence in the Azores of several independently evolving lineages of the beetle genus Tarphius Erichson, 1845 (Coleoptera: Zopheridae Solier, 1834) and higher species richness masked by cryptic diversity, needing formal taxonomic description. All Tarphius from the Azores are revised using an integrative taxonomic approach, using evidence from morphology, mor...


Drivers of extinction : the case of Azorean beetles

Terzopoulou, Sofia; Rigal, François; Whittaker, Robert J.; Borges, Paulo A. V.; Triantis, Kostas A.

Oceanic islands host a disproportionately high fraction of endangered or recently extinct endemic species. We report on species extinctions among endemic Azorean beetles following 97% habitat loss since AD 1440. We infer extinctions from historical and contemporary records and examine the influence of three predictors: geographical range, habitat specialization and body size. Of 55 endemic beetle species invest...


Comparative phylogeography of endemic Azorean arthropods

Parmakelis, Aristeidis; Rigal, François; Mourikis, Thanos; Balanika, Katerina; Terzopoulou, Sofia; Rego, Carla; Amorim, Isabel R.; Crespo, Luís C.

BACKGROUND: For a remote oceanic archipelago of up to 8 Myr age, the Azores have a comparatively low level of endemism. We present an analysis of phylogeographic patterns of endemic Azorean island arthropods aimed at testing patterns of diversification in relation to the ontogeny of the archipelago, in order to distinguish between alternative models of evolutionary dynamics on islands. We collected individuals ...


Functional biogeography of oceanic islands and the scaling of functional divers...

Whittaker, Robert J.; Rigal, François; Borges, Paulo A. V.; Cardoso, Pedro; Terzopoulou, Sofia; Casanoves, Fernando; Pla, Laura; Guilhaumon, François

Analyses of species-diversity patterns of remote islands have been crucial to the development of biogeographic theory, yet little is known about corresponding patterns in functional traits on islands and how, for example, they may be affected by the introduction of exotic species. We collated trait data for spiders and beetles and used a functional diversity index (FRic) to test for nonrandomness in the contrib...


Integrating Landscape Disturbance and Indicator Species in Conservation Studies

Cardoso, Pedro; Rigal, François; Fattorini, Simone; Terzopoulou, Sofia; Borges, Paulo A. V.

Successful conservation plans are conditioned by our ability to detect anthropogenic change in space and time and various statistical analyses have been developed to handle this critical issue. The main objective of this paper is to illustrate a new approach for spatial analysis in conservation biology. Here, we propose a two-step protocol. First, we introduce a new disturbance metric which provides a continuou...


Development of 28 polymorphic microsatellite markers for the endemic Azorean sp...

Parmakelis, Aristeidis; Balanika, Katerina; Terzopoulou, Sofia; Rigal, François; Beasley, Rochelle R.; Jones, Kenneth L.; Lance, Stacey L.

"We isolated and characterized a total of 28 microsatellite loci from Sancus acoreensis. Loci were screened in 26 individuals originating from seven (Flores, Faial, Pico, São Jorge, Terceira, São Miguel, and Santa Maria) out of the nine islands of the Azores. The number of alleles per locus ranged from 2 to 14, observed heterozygosity ranged from 0.040 to 0.708, and the probability of identity values ranged fro...


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