About: Comparing growth patterns among field populations of cereal aphids reveals factors limiting their maximum abundance

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Dlouhodobé údaje o populační dynamice tři druhů obilních mšic jdou hodnoceny z pohledu regulace jejich růstu hustotně závislými faktory. Tento přístup umožní zpřesnit modely sloužící k předvídání ekonomických prahů výskytu těchto škůdců. (cs) Cereal stands in central Europe are commonly infested with three species of aphids that may become serious pests. With increasing abundance, the proportion of a particular species in the total aphid population may remain constant, suggesting a density-independent exponential growth, or the proportion can change, suggesting density-dependent constraints on growth. The constraints that affect particular species, and thus their relative abundance, were studied. The proportionality between maximum abundances of the cereal aphids was studied using a 10-year census of the numbers of aphids infesting 268 winter wheat plots. For two species their abundance on leaves and ears was compared. With increasing aphid density the maximum abundance of Rhopalosiphum padi (Linnaeus) remained proportional, but not that of Sitobion avenae (Fabricius), which was constrained by the smaller surface area of ears compared to leaves. There was no evidence of inter-specific competition. Maximum abundance of R. padi and Metop... Cereal stands in central Europe are commonly infested with three species of aphids that may become serious pests. With increasing abundance, the proportion of a particular species in the total aphid population may remain constant, suggesting a density-independent exponential growth, or the proportion can change, suggesting density-dependent constraints on growth. The constraints that affect particular species, and thus their relative abundance, were studied. The proportionality between maximum abundances of the cereal aphids was studied using a 10-year census of the numbers of aphids infesting 268 winter wheat plots. For two species their abundance on leaves and ears was compared. With increasing aphid density the maximum abundance of Rhopalosiphum padi (Linnaeus) remained proportional, but not that of Sitobion avenae (Fabricius), which was constrained by the smaller surface area of ears compared to leaves. There was no evidence of inter-specific competition. Maximum abundance of R. padi and Metop... (en)
Title	Comparing growth patterns among field populations of cereal aphids reveals factors limiting their maximum abundance Faktory limitující růst populací obilních mšic (cs) Comparing growth patterns among field populations of cereal aphids reveals factors limiting their maximum abundance (en)
skos:prefLabel	Comparing growth patterns among field populations of cereal aphids reveals factors limiting their maximum abundance Faktory limitující růst populací obilních mšic (cs) Comparing growth patterns among field populations of cereal aphids reveals factors limiting their maximum abundance (en)
skos:notation	RIV/67985939:_____/06:00048974!RIV07-AV0-67985939
http://linked.open.../vavai/riv/strany	269;277
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA522/05/0765), Z(AV0Z60050516)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Jarošík, Vojtěch
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Botanický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	469207
http://linked.open...ai/riv/idVysledku	RIV/67985939:_____/06:00048974
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	aphids; population dynamics; density-dependence (en)
http://linked.open.../riv/klicoveSlovo	aphids density-dependence population dynamics
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[0101ADF771D8]
http://linked.open...i/riv/nazevZdroje	Bulletin of Entomological Research
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Long-time changes in population of cereal aphids and their predator
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	96
http://linked.open...iv/tvurceVysledku	Jarošík, Vojtěch Dixon, A. F. G. Honěk, J.
http://linked.open...n/vavai/riv/zamer	Struktura, funkce a evoluce biodiversity fotoautotrofních organismů a hub: původ a příčiny jejich proměnlivosti, dynamika populací, společenstev a ekosystémů; využití vybraných výsledků k rozvoji Průhonického parku
issn	0007-4853
number of pages	9 (xsd:int)

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