Browsing by Author "Sfenthourakis, Spyros"

Article

The Aegean archipelago: A natural laboratory of evolution, ecology and civilisations

Sfenthourakis, Spyros; Triantis, Kostas A. (2017)

The Aegean archipelago, comprising numerous islands and islets with great heterogeneity in topographic, geological, historical and environmental properties, offers an ideal natural laboratory for ecological and evolutionary ...

Article

Altitudinal effect on species richness of Oniscidea (Crustacea

Sfenthourakis, Spyros (1992)

Species richness decreases with altitude, and at the same rate on all three mountains. The faunal similarity among altitudinal zones is inversely related to species density (total number of species present at each mountain), ...

Article

Altitudinal terrestrial isopod diversity

Sfenthourakis, Spyros; Anastasiou, Ioannis P.; Strutenschi, T. (2005)

We have assessed the diversity of terrestrial isopods across an elevational and habitat gradient on Mt. Panachaiko (NW Peloponnisos, Greece). Previous knowledge on the biodiversity of this mountain was restricted to very ...

Article

Between-island compositional dissimilarity of avian communities

Pitta, Eva; Kassara, Christina; Tzanatos, Evangelos; Giokas, Sinos; Sfenthourakis, Spyros (2014)

Compositional dissimilarity patterns of biotic communities can vary among different types of insular systems and among taxa with different dispersal abilities. In this work we examined compositional dissimilarity patterns ...

Article

Biodiversity patterns of terrestrial isopods from two island groups in the Aegean Sea (Greece): Species-area relationship, small island effect, and nestedness

Triantis, Kostas A.; Sfenthourakis, Spyros; Mylonas, Moisis (2008)

Although almost one third of Aegean islands have an area smaller than 1 km2, very few studies have concentrated on this spatial Scale. We investigate biodiversity patterns of terrestrial isopods in 2 island groups (Kalymnos ...

Article

A biogeographical analysis of Greek Oniscidean endemism

Sfenthourakis, Spyros; Giokas, Sinos (1998)

Despite our incomplete knowledge of Greek Oniscidea, a great number of species have already been described, of which 69% are endemic. This unusually high percentage of endemics is a result of intense speciation triggered ...

Article

A biogeographical analysis of terrestrial isopods (Isopoda, Oniscidea) from the central Aegean islands (Greece)

Sfenthourakis, Spyros (1996)

Terrestrial isopods (Isopoda, Oniscidea) of forty-three central Aegean islands and islets are analysed from a biogeographical point of view. The oniscid fauna consists of sixty-nine species, thirty-two genera anti fourteen ...

Article

Biogeography of body size in terrestrial isopods (Crustacea: Oniscidea)

Karagkouni, Maria; Sfenthourakis, Spyros; Feldman, Anat; Meiri, Shai (2016)

Article

Biogeography of body size in terrestrial isopods (Crustacea: Oniscidea)

Karagkouni, Maria; Sfenthourakis, Spyros; Feldman, A.; Meiri, S. (2016)

This study tries to unveil the contribution of climatic shift in shaping the extreme body size diversity in terrestrial isopods (Oniscidea). Trying to explain size variation at an interspecific level, we test five hypotheses: ...

Article

Community variation of spiders, beetles and isopods in three small island groups of the Aegean Sea: the interplay between history and ecology

Pitta, Eva; Kassara, Christina; Trichas, Apostolos; Sfenthourakis, Spyros; Chatzaki, Maria (2017)

Aim: To study the variation in the species turnover and nestedness components of compositional dissimilarity in a multi-taxa and multi-island-group system. In addition, to examine the influence of several biogeographical ...

Article

A comparison of terrestrial isopod communities among different habitat types on Mt. Chelmos (Peloponnisos, Greece)

Sfenthourakis, Spyros; Skouras, D.; Anastasiou, Yiannis (2012)

The mountainous communities of terrestrial isopods (Crustacea, Oniscidea) have not been ex-tensively studied so far, even though they can offer important insights to the structuring of iso-pod diversity, to the role of ...

Article

Competition for shelter occupancy between a native freshwater crab and an invasive crayfish

Savvides, P.; Louca, V.; Sfenthourakis, Spyros (2015)

Potamon potamios populations have decreased significantly due to the degradation of its habitat caused by human activities, mainly the use of insecticides. Today, P. potamios is protected by Cypriot law, but not much ...

Article

Complementing the puzzle of Eleonora's Falcon (Falco eleonorae) migration: New evidence from an eastern colony in the Aegean Sea

Kassara, Christina; Fric, Jakob; Gschweng, M.; Sfenthourakis, Spyros (2012)

Eleonora's Falcon (Falco eleonorae) is an endemic breeder of the Mediterranean Sea and the Canary Islands that overwinters in Madagascar and surrounding areas. Recent telemetry studies have revealed the migratory journey ...

Article

Compositional dissimilarity patterns of reptiles and amphibians in insular systems around the world

Pitta, Eva; Kassara, Christina; Giokas, Sinos; Sfenthourakis, Spyros (2013)

Several studies have shown that taxa with poor dispersal ability have a higher level of compositional dissimilarity than good dispersers. However, compositional dissimilarity patterns between islands with respect to dispersal ...

Article

Distribution modelling of Eleonora's Falcon Falco eleonorae Géné, 1839 occurrence in its wintering grounds: A niche-based approach with satellite telemetry data

Kassara, Christina; Fric, Jakob; Sfenthourakis, Spyros (2014)

Summary Eleonora's Falcon is a long-distance migrant of the Palearctic region. In recent years, the advent of satellite telemetry has enabled a more detailed investigation of the species's migratory and wintering periods. ...

Article

DNA barcoding of bird species in Cyprus: a tool for conservation purposes

Dimitriou, Andreas C.; Forcina, Giovanni; Papazoglou, Clairie; Panayides, Panicos; Guerrini, Monica; Crabtree, Alan; Barbanera, Filippo; Sfenthourakis, Spyros (2017)

DNA barcoding has become a widely used and valuable tool in taxonomic research during the past three decades and its application is expanding to fields such as wildlife forensics (e.g. anti-poaching actions). One of the ...

Article

Does by-catch pose a threat for the conservation of seabird populations in the southern ionian sea (eastern Mediterranean)? A questionnaire-based survey of local fisheries

Karris, Georgios; Fric, Jakob; Kitsou, Z.; Kalfopoulou, J.; Giokas, Sinos; Sfenthourakis, Spyros; Poirazidis, K. (2013)

A significant number of studies worldwide have shown that incidental catches (by-catch) of seabirds in fishing gear might pose a considerable risk for the conservation of their populations. Nevertheless, reliable data on ...

Article

Environment shapes the digestive performance in a Mediterranean lizard

Karameta, E.; Gourgouliani, N.; Kouvari-Gaglia, D.; Litsi-Mizan, V.; Halle, S.; Meiri, S.; Sfenthourakis, Spyros; Pafilis, P. (2017)

An efficient digestive system is of pivotal importance for survival as it governs the energy flow from the environment to organisms. Reptiles require relatively little energy, and their digestive system can readily respond ...

Article

Estimating the population size of Scopoli's Shearwaters (Calonectris diomedea) frequenting the Strofades islands (Ionian Sea, western Greece) by raft counts and surveys of breeding pairs

Karris, Georgios; Xirouchakis, Stavros M.; Grivas, C.; Voulgaris, M. -D; Sfenthourakis, Spyros; Giokas, Sinos (2017)

The Strofades Island complex in the Ionian Sea comprises two small islands, i.e. Stamfani and Arpyia, and several rocks. The islands host a significant Scopoli's Shearwater (Calonectris diomedea) colony, which is regarded ...

Article

Factors affecting plant species richness and endemism on land-bridge islands - An example from the East Aegean archipelago

Panitsa, M.; Trigas, P.; Iatrou, G.; Sfenthourakis, Spyros (2010)

The native flora and a number of environmental factors were recorded for twenty islands in the eastern Aegean archipelago (Greece) in order to study the patterns of native and endemic plant species diversity as well as the ...