Detailed Information on Publication Record

LÍZNAROVÁ, Eva, Lenka SENTENSKÁ, Fernando Luis GARCIA, Stanislav PEKÁR and Carmen VIERA. Local trophic specialisation in a cosmopolitan spider (Araneae). Zoology. 2013, vol. 116, No 1, p. 20-26. ISSN 0944-2006. Available from: https://dx.doi.org/10.1016/j.zool.2012.06.002.

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Basic information
Original name	Local trophic specialisation in a cosmopolitan spider (Araneae)
Authors	LÍZNAROVÁ, Eva (203 Czech Republic, guarantor, belonging to the institution), Lenka SENTENSKÁ (203 Czech Republic, belonging to the institution), Fernando Luis GARCIA (170 Colombia), Stanislav PEKÁR (703 Slovakia, belonging to the institution) and Carmen VIERA (858 Uruguay).
Edition	Zoology, 2013, 0944-2006.

Other information
Original language	English
Type of outcome	Article in a journal
Field of Study	10600 1.6 Biological sciences
Country of publisher	Germany
Confidentiality degree	is not subject to a state or trade secret
Impact factor	Impact factor: 1.596
RIV identification code	RIV/00216224:14310/13:00072535
Organization unit	Faculty of Science
Doi	http://dx.doi.org/10.1016/j.zool.2012.06.002
UT WoS	000317455900003
Keywords in English	Oecobius navus; Stenophagy; Myrmecophagy; Feeding strategy
Tags	AKR, rivok
Changed by	Changed by: Mgr. Lucie Jarošová, DiS., učo 205746. Changed: 9/3/2018 09:34.

Abstract
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.

Abstract

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.