Pregled bibliografske jedinice broj: 1038759
Enlightening the dark: A phylogenetic framework for Dinaric cave-dwelling dysderid spiders
Enlightening the dark: A phylogenetic framework for Dinaric cave-dwelling dysderid spiders // Abstract book 21st International Congress of Arachnology
Canterbury, 2019. str. 66-66 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1038759 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Enlightening the dark: A phylogenetic framework for Dinaric cave-dwelling dysderid spiders
Autori
Pavlek, Martina ; Adrian, Silvia ; Gasparo, Fulvio ; Arnedo, Miquel
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Abstract book 21st International Congress of Arachnology
/ - Canterbury, 2019, 66-66
Skup
21st International Congress of Arachnology
Mjesto i datum
Canterbury, Novi Zeland, 10.02.2019. - 15.02.2019
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
cave Dysderidae ; Dinarids ; phylogeny ; biogeography
Sažetak
Caves are one of the last uncharted territories on Earth. The Dinaric karst in the Balkan peninsula is home to many of them, but despite of darkness and harsh conditions, life thrives there. Spiders of the family Dysderidae are among their most abundant and conspicuous inhabitants. Yet, we know very little about their biology, ecology, and evolutionary history. As a first step towards improving our knowledge on cave dysderids, we here present an explicit phylogenetic hypothesis of the group based on an extensive biotic survey of the region. Seven Dysderidae genera with 21 species are known in the Dinaric caves: Stalagtia and Folkia in the Harpacteinae subfamily, and Rhode, Stalita, Mesostalita, Parastalita and Stalitella in the Rhodinae. Almost all species show high level of cave adaptation and are narrow endemics. We used a target multi-locus approach based on 4 concatenated genes to infer a phylogeny, delimit species boundaries and estimate divergence time combining fossil and biogeographic node calibrations. We uncovered major overlooked diversity at both species and genera levels. Quantitative species delimitation methods confirmed the existence of many new species, and revealed high levels of cryptic diversity within Harpacteinae. All cave lineages showed a common pattern of long stem branches, which may hint at high levels of extinction during the history of these groups. We hypothesise that Miocene climatic changes may have played a crucial role in shaping the extant diversity of these cave-dwelling spiders. Finally, we reconstructed the biogeographic scenario for the diversification of the Dinaric dysderid fauna.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
