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The Macaronesian province: patterns of species richness and endemism of arthropods
Triantis, Kostas A.; Borges, Paulo A. V.; Hortal, Joaquín; Whittaker, Robert J."[…]. The Macaronesian arthropod fauna displays a number of characteristics typical of oceanic islands, including a high degree of endemism, ranging from 19% for the Azores (Borges et al., 2005a), to 28% for Madeira (Borges et al., 2008a), 30% for Cape Verde (Arechavaleta etal., 2005) and 45% for the Canary Islands (Izquierdo et al., 2004; see Table I). The preponderance of endemic species has made the Macarone...
The effects of land-use change on arthropod richness and abundance on Santa Mar...
Meijer, Seline S.; Whittaker, Robert J.; Borges, Paulo A. V.Copyright © Springer Science+Business Media B.V. 2010. ; We study how endemic, native and introduced arthropod species richness, abundance, diversity and community composition vary between four different habitat types (native forest, exotic forest of Cryptomeria japonica, semi-natural pasture and intensive pasture) and how arthropod richness and abundance change with increasing distance from the native forest ...
Are species-area relationships from entire archipelagos congruent with those of...
Santos, Ana C.; Whittaker, Robert J.; Triantis, Kostas A.; Borges, Paulo A. V.; Jones, Owen R.; Quicke, Donald L. J.; Hortal, JoaquínCopyright © 2010 Blackwell Publishing Ltd. ; AIM To establish the extent to which archipelagos follow the same species–area relationship as their constituent islands and to explore the factors that may explain departures from the relationship. LOCATION Thirty-eight archipelagos distributed worldwide. METHODS We used ninety-seven published datasets to create island species–area relationships (ISARs) using the A...
Extinction debt on oceanic islands
Triantis, Kostas A.; Borges, Paulo A. V.; Ladle, Richard J.; Hortal, Joaquín; Cardoso, Pedro; Gaspar, Clara; Dinis, Francisco; Mendonça, EnésimaCopyright © 2010 The Authors. Journal compilation © 2010 Ecography. ; Habitat destruction is the leading cause of species extinctions. However, there is typically a time-lag between the reduction in habitat area and the eventual disappearance of the remnant populations. These “surviving but ultimately doomed” species represent an extinction debt. Calculating the magnitude of such future extinction events has b...
Measurements of area and the (island) species-area relationship: new directions...
Triantis, Kostas A.; Nogués-Bravo, David; Hortal, Joaquín; Borges, Paulo A. V.; Adsersen, Henning; Fernández-Palacios, José María; Araújo, Miguel B.Copyright © 2008 The Authors. Journal compilation. ; Copyright © 2008 Oikos. ; The species-area relationship is one of the strongest empirical generalizations in geographical ecology, yet controversy persists about some important questions concerning its causality and application. Here, using more accurate measures of island surface size for five different island systems, we show that increasing the accuracy ...
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