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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F13%3A00072535%21RIV14-MSM-14310___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
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.
dcterms:title
Local trophic specialisation in a cosmopolitan spider (Araneae) Local trophic specialisation in a cosmopolitan spider (Araneae)
skos:prefLabel
Local trophic specialisation in a cosmopolitan spider (Araneae) Local trophic specialisation in a cosmopolitan spider (Araneae)
skos:notation
RIV/00216224:14310/13:00072535!RIV14-MSM-14310___
n3:predkladatel
n16:orjk%3A14310
n4:aktivita
n17:S
n4:aktivity
S
n4:cisloPeriodika
1
n4:dodaniDat
n14:2014
n4:domaciTvurceVysledku
n9:5422019 n9:8958297 n9:3581675
n4:druhVysledku
n19:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n10:predkladatel
n4:idSjednocenehoVysledku
85264
n4:idVysledku
RIV/00216224:14310/13:00072535
n4:jazykVysledku
n15:eng
n4:klicovaSlova
Oecobius navus; Stenophagy; Myrmecophagy; Feeding strategy
n4:klicoveSlovo
n7:Myrmecophagy n7:Feeding%20strategy n7:Oecobius%20navus n7:Stenophagy
n4:kodStatuVydavatele
DE - Spolková republika Německo
n4:kontrolniKodProRIV
[5E1291A2DA2F]
n4:nazevZdroje
Zoology
n4:obor
n8:EG
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n14:2013
n4:svazekPeriodika
116
n4:tvurceVysledku
Líznarová, Eva Sentenská, Lenka Viera, Carmen Garcia, Fernando Luis Pekár, Stanislav
n4:wos
000317455900003
s:issn
0944-2006
s:numberOfPages
7
n13:doi
10.1016/j.zool.2012.06.002
n18:organizacniJednotka
14310