2009
DOI: 10.1051/limn/2009012
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Chironomidae (Diptera: Insecta) in oceanic islands: New records for the Azores and biogeographic notes

Abstract: -Oceanic islands freshwater systems are unique due to their volcanic origin, oceanic situation, catchment morphology and the presence of distinct freshwater communities when compared with continental systems. This study provides an update of Azorean chironomid fauna records, distribution data and includes biogeographical comments, based on collections covering a range of freshwater habitats on several islands over 2005 to 2008. Island species area-relationships or ISAR was performed as a descriptive model for … Show more

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Cited by 12 publications
(7 citation statements)
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“…The enhanced hydrodynamic water currents, especially in Transect 3, suggested by the coarser sedimentary particles presence, would favour the occurrence of higher flow conditions. These hydrodynamic conditions were confirmed by the presence of several taxa associated to lotic systems and well represented in Azorean streams (Gonçalves et al 2015;Raposeiro et al 2011;Raposeiro et al 2009;Raposeiro et al 2013), such as Cocconeis euglypta, Eunotia exigua, Fragilaria capucina and Eolimna uthermoehlii, for the diatom assemblages, and Orthocladius sp. and Pseudosmitthia sp.…”
Section: Sedimentation and Taphonomic Processes Affects The Spatial Dmentioning
confidence: 61%
“…The enhanced hydrodynamic water currents, especially in Transect 3, suggested by the coarser sedimentary particles presence, would favour the occurrence of higher flow conditions. These hydrodynamic conditions were confirmed by the presence of several taxa associated to lotic systems and well represented in Azorean streams (Gonçalves et al 2015;Raposeiro et al 2011;Raposeiro et al 2009;Raposeiro et al 2013), such as Cocconeis euglypta, Eunotia exigua, Fragilaria capucina and Eolimna uthermoehlii, for the diatom assemblages, and Orthocladius sp. and Pseudosmitthia sp.…”
Section: Sedimentation and Taphonomic Processes Affects The Spatial Dmentioning
confidence: 61%
“…The low contribution of stream macroinvertebrates to litter decomposition in oceanic islands has been reported before, and is attributed to the low abundance and richness of shredders in these isolated systems (Larned, 2000;Benstead et al, 2009;MacKenzie et al, 2013;Raposeiro et al, 2014). Age, area and distance to the mainland are key factors ruling the colonisation of oceanic islands by organisms (Raposeiro, Hughes & Costa, 2009, and explain why remote islands have low diversity and abundance of shredders (Benstead et al, 2009;MacKenzie et al, 2013;Raposeiro et al, 2013). In Azorean streams, in particular, only a few shredder taxa have been identified: the iso- Fig.…”
Section: Discussionmentioning
confidence: 87%
“…Fish preferentially prey on large insects (Pope and Hannelly, 2013), such as Ephemeroptera, Trichoptera and Odonata, which are poorly represented in the Azores archipelago (Raposeiro et al, 2012(Raposeiro et al, , 2016. Chironomids, however, being the most abundant and diverse family of freshwater macroinvertebrates in the Azores archipelago (Raposeiro et al, 2009(Raposeiro et al, , 2012, are the available prey for introduced predators.…”
Section: Discussionmentioning
confidence: 99%
“…However, the ecological requirements of chironomid taxa have universal validity because even though the species might not be the same from one region to another, genera display comparable ecological requirements (Brundin, 1956;Mousavi et al, 2002;Oliver, 1971;Saether, 1975). Many of the chironomid genera present in Lake Azul have a Holarctic distribution (Raposeiro et al, 2009) and their ecology is well studied, and so we can infer tentative conclusions about their response to predator introductions in Azorean lakes.…”
Section: Discussionmentioning
confidence: 99%
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