Search results for "Xysticus"

showing 3 items of 3 documents

Exposing the structure of an Arctic food web

2015

15 pages; International audience; How food webs are structured has major implications for their stability and dynamics. While poorly studied to date, arctic food webs are commonly assumed to be simple in structure, with few links per species. If this is the case, then different parts of the web may be weakly connected to each other, with populations and species united by only a low number of links. We provide the first highly resolved description of trophic link structure for a large part of a high-arctic food web. For this purpose, we apply a combination of recent techniques to describing the links between three predator guilds (insectivorous birds, spiders, and lepidopteran parasitoids) a…

MUTUALISTIC NETWORKSPlectrophenaxTrophic speciesPopulationGreenlandPOLLINATION NETWORKSDIVERSITYBiologyspecialismPredation[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/EcosystemsgeneralismDNA barcodingeducationPredatorEcology Evolution Behavior and SystematicsBEAR ISLANDNature and Landscape ConservationTrophic levelPardosaOriginal Researcheducation.field_of_study[ SDE.BE ] Environmental Sciences/Biodiversity and EcologyMOLECULAR-DETECTIONGLOBAL PATTERNSCalidrisEcologyEcology15. Life on landHOST-SPECIFICITYbiology.organism_classificationHymenopteraFood web[ SDV.EE.ECO ] Life Sciences [q-bio]/Ecology environment/EcosystemsPardosaArctic1181 Ecology evolutionary biologymolecular diet analysisAPPARENT COMPETITIONta1181XysticusHERBIVOROUS INSECTS[SDE.BE]Environmental Sciences/Biodiversity and EcologyTROPICAL FORESTEcology and Evolution
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Crab spiders of the families Thomisidae and Philodromidae (Arachnida: Araneae) from Iran

2004

Spiders of the families Thomisidae and Philodromidae (Arachnida, Araneae) mainly collected in the mountainous areas of Iran in 1978 are taxonomically studied and classified into 21 species of 10 genera. Most species are illustrated and described on the basis of the present specimens. Except for only two species, Xysticus kulczynskii Wierzbicki 1902 and Synaema globosum (Fabricius 1775), already known from this country, 19 species are new records to the Iranian fauna. Of these, 14 species, Tmarus stellio Simon 1875, Xysticus ninnii Thorell 1872 (subsp. fusciventris Crome 1965), X. cristatus (Clerck 1758), X. kochi Thorell 1872, X. gallicus Simon 1875, Oxyptila nigrita Thorell 1875, Heriaeus …

food.ingredientbiologyZoologybiology.organism_classificationPhilodromidaefoodRunciniaCrab spidersXysticusThomisidaeTmarusPhilodromusThomisusEcology Evolution Behavior and SystematicsActa Arachnologica
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Data from: Exposing the structure of an Arctic food web

2016

How food webs are structured has major implications for their stability and dynamics. While poorly studied to date, arctic food webs are commonly assumed to be simple in structure, with few links per species. If this is the case, then different parts of the web may be weakly connected to each other, with populations and species united by only a low number of links. We provide the first highly resolved description of trophic link structure for a large part of a high-arctic food web. For this purpose, we apply a combination of recent techniques to describing the links between three predator guilds (insectivorous birds, spiders, and lepidopteran parasitoids) and their two dominant prey orders …

HolocenePlectrophenax nivalisLife SciencesXysticus deichmannispecialismErigone arcticaIchneumonidaeEmblyna borealismedicine and health careBraconidaegeneralismTachinidaePardosa glacialismolecular diet analysisMedicineXysticus labradorensisEulophidaeCalidris alpinaCalidris alba
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