About: Lack of floral nectar reduces self-pollination in a fly-pollinated orchid

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About: Lack of floral nectar reduces self-pollination in a fly-pollinated orchid Goto Sponge NotDistinct Permalink

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	One explanation for the widespread absence of floral nectar in many orchids is that it causes pollinators to visit fewer flowers on a plant, and thus reduces selfpollination. This, in turn, could increase fitness by reducing inbreeding depression in progeny and promoting pollen export. The few previous investigations of this hypothesis have all involved bee-pollinated orchids and some have given contradictory results. We studied the effects of adding artificial nectar (sucrose solution) to the spurs of a non-rewarding long-proboscid fly-pollinated orchid, Disa pulchra. Addition of nectar signifi- cantly increased the number of flowers probed by flies (2.6-fold), the time spent on a flower (5.4-fold), the number of pollinia removed per inflorescence (4.8-fold) and the proportion of removed pollen involved in selfpollination (3.5-fold). The level of self-pollination increased dramatically with the number of flowers probed by flies. One explanation for the widespread absence of floral nectar in many orchids is that it causes pollinators to visit fewer flowers on a plant, and thus reduces selfpollination. This, in turn, could increase fitness by reducing inbreeding depression in progeny and promoting pollen export. The few previous investigations of this hypothesis have all involved bee-pollinated orchids and some have given contradictory results. We studied the effects of adding artificial nectar (sucrose solution) to the spurs of a non-rewarding long-proboscid fly-pollinated orchid, Disa pulchra. Addition of nectar signifi- cantly increased the number of flowers probed by flies (2.6-fold), the time spent on a flower (5.4-fold), the number of pollinia removed per inflorescence (4.8-fold) and the proportion of removed pollen involved in selfpollination (3.5-fold). The level of self-pollination increased dramatically with the number of flowers probed by flies. (en)
Title	Lack of floral nectar reduces self-pollination in a fly-pollinated orchid Lack of floral nectar reduces self-pollination in a fly-pollinated orchid (en)
skos:prefLabel	Lack of floral nectar reduces self-pollination in a fly-pollinated orchid Lack of floral nectar reduces self-pollination in a fly-pollinated orchid (en)
skos:notation	RIV/67179843:_____/06:00338686!RIV10-AV0-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB6141302), Z(AV0Z60870520)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Jersáková, Jana
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	482835
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/06:00338686
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	geitonogamy; inbreeding depression; pollen dispersal (en)
http://linked.open.../riv/klicoveSlovo	inbreeding depression geitonogamy pollen dispersal
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[FAE056A6F300]
http://linked.open...i/riv/nazevZdroje	Oecologia
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Adaptive significance of nectar reward in orchids
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	147
http://linked.open...iv/tvurceVysledku	Jersáková, Jana Johnson, S. D.
http://linked.open...ain/vavai/riv/wos	000234601000008
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
issn	0029-8549
number of pages	9 (xsd:int)

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