About: Assessment of patch quality by aphidophagous ladybirds: Laboratory study on the minimum density of aphids required for oviposition

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Many studies indicate that there is a density of aphids below which ladybirds are unlikely to lay eggs. This is adaptive as theory indicates that a certain minimum population density of aphids is required if hatchling larvae are to survive. The responses of gravid females of the two spot ladybird, Adalia bipunctata (L.) (Coleoptera: Coccinellidae), recorded over a period of an hour, to colonies of 5 and 50 pea aphids on bean plants and similar plants each previously infested with the same number of aphids for 48 hours were determined. Proportionally more of the ladybirds on plants with 50 aphids or that were previously infested with the same number of aphids for 48 hours laid eggs and larger clusters of eggs, and were less active than those on plants that were infested with or had previously been infested with five aphids. That is, gravid females showed similar oviposition and activity responses to aphid abundance and different levels of honeydew contamination. This indicates that honeydew contamination may be an important cue used by ladybirds when locating and assessing the abundance of prey in aphid colonies. Many studies indicate that there is a density of aphids below which ladybirds are unlikely to lay eggs. This is adaptive as theory indicates that a certain minimum population density of aphids is required if hatchling larvae are to survive. The responses of gravid females of the two spot ladybird, Adalia bipunctata (L.) (Coleoptera: Coccinellidae), recorded over a period of an hour, to colonies of 5 and 50 pea aphids on bean plants and similar plants each previously infested with the same number of aphids for 48 hours were determined. Proportionally more of the ladybirds on plants with 50 aphids or that were previously infested with the same number of aphids for 48 hours laid eggs and larger clusters of eggs, and were less active than those on plants that were infested with or had previously been infested with five aphids. That is, gravid females showed similar oviposition and activity responses to aphid abundance and different levels of honeydew contamination. This indicates that honeydew contamination may be an important cue used by ladybirds when locating and assessing the abundance of prey in aphid colonies. (en)
Title	Assessment of patch quality by aphidophagous ladybirds: Laboratory study on the minimum density of aphids required for oviposition Assessment of patch quality by aphidophagous ladybirds: Laboratory study on the minimum density of aphids required for oviposition (en)
skos:prefLabel	Assessment of patch quality by aphidophagous ladybirds: Laboratory study on the minimum density of aphids required for oviposition Assessment of patch quality by aphidophagous ladybirds: Laboratory study on the minimum density of aphids required for oviposition (en)
skos:notation	RIV/67179843:_____/11:00371949!RIV12-AV0-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0073), P(LC06073), Z(AV0Z60870520)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Dixon, Anthony F. G.
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	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	187277
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/11:00371949
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Adalia bipunctata; Aphididae; arrestant; Coccinellidae; cues for oviposition; honeydew; minimum aphid density; patch quality; predator (en)
http://linked.open.../riv/klicoveSlovo	Adalia bipunctata Aphididae arrestant cues for oviposition honeydew minimum aphid density patch quality Coccinellidae predator
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[3BB083BAE681]
http://linked.open...i/riv/nazevZdroje	European Journal of Environmental Sciences
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	CzechGlobe - Center for Global Climate Change Impacts Studies Biodiversity Research Center
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	1
http://linked.open...iv/tvurceVysledku	Das, B. C. Dixon, Anthony F. G.
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
issn	1805-0174
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/978-94-007-1802-9

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