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  • Here, we present our research about local trophic specialization in a cosmopolitan spider species Oecobius navus. This species was considered a myrmecophagous specialist but we found out that two distinct populations of this species feed on different prey types. We analysed the actual prey of populations from Portugal and Uruguay and found that the Portuguese population feeds mainly on dipterans, while the Uruguayan population feeds mainly on ants. Dipterans in Portugal and ants in Uruguay were the most abundant potential prey. We found predatory behavioural adaptations that increase capture efficacy of the locally abundant prey. We conclude that O. navus is an euryphagous predator locally specialised on a profitable prey possessing versatile behavioural adaptations. This is an entirely new view to trophic niche of this species.
  • Here, we present our research about local trophic specialization in a cosmopolitan spider species Oecobius navus. This species was considered a myrmecophagous specialist but we found out that two distinct populations of this species feed on different prey types. We analysed the actual prey of populations from Portugal and Uruguay and found that the Portuguese population feeds mainly on dipterans, while the Uruguayan population feeds mainly on ants. Dipterans in Portugal and ants in Uruguay were the most abundant potential prey. We found predatory behavioural adaptations that increase capture efficacy of the locally abundant prey. We conclude that O. navus is an euryphagous predator locally specialised on a profitable prey possessing versatile behavioural adaptations. This is an entirely new view to trophic niche of this species. (en)
Title
  • Local trophic specialisation in a cosmopolitan spider (Araneae)
  • Local trophic specialisation in a cosmopolitan spider (Araneae) (en)
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  • Local trophic specialisation in a cosmopolitan spider (Araneae)
  • Local trophic specialisation in a cosmopolitan spider (Araneae) (en)
skos:notation
  • RIV/00216224:14310/13:00072535!RIV14-MSM-14310___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • S
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 85264
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/13:00072535
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Oecobius navus; Stenophagy; Myrmecophagy; Feeding strategy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [5E1291A2DA2F]
http://linked.open...i/riv/nazevZdroje
  • Zoology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 116
http://linked.open...iv/tvurceVysledku
  • Pekár, Stanislav
  • Líznarová, Eva
  • Sentenská, Lenka
  • Garcia, Fernando Luis
  • Viera, Carmen
http://linked.open...ain/vavai/riv/wos
  • 000317455900003
issn
  • 0944-2006
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.zool.2012.06.002
http://localhost/t...ganizacniJednotka
  • 14310
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