About: Reproductive success and sex variation in nectarless and rewarding orchids

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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	In hermaphroditic plants, the number of flowers in the inflorescence and the presence of a reward may have a differential effect on male and female reproductive success and thus on the evolution of floral features. Two rewarding and one nectarless orchid species were used here to test the hypothesis that a large inflorescence serves primarily to increase male reproductive success. We have found that both in rewarding and in nectarless species, the rate of increase of male reproductive success with the number of flowers is not significantly different from that of female reproductive success, which does not support the male function hypothesis. Since the lack of reward causes lower reproductive success in nectarless orchids, we hypothesized that in nectarless species, the average time interval between flower opening and its first visit by a pollinator is longer compared with rewarding ones. Our data confirmed this hypothesis. In hermaphroditic plants, the number of flowers in the inflorescence and the presence of a reward may have a differential effect on male and female reproductive success and thus on the evolution of floral features. Two rewarding and one nectarless orchid species were used here to test the hypothesis that a large inflorescence serves primarily to increase male reproductive success. We have found that both in rewarding and in nectarless species, the rate of increase of male reproductive success with the number of flowers is not significantly different from that of female reproductive success, which does not support the male function hypothesis. Since the lack of reward causes lower reproductive success in nectarless orchids, we hypothesized that in nectarless species, the average time interval between flower opening and its first visit by a pollinator is longer compared with rewarding ones. Our data confirmed this hypothesis. (en) Reprodukční úspěch a variace genderu u orchidejí (cs)
Title	Reproductive success and sex variation in nectarless and rewarding orchids Reprodukční úspěch a variace genderu u orchidejí (cs) Reproductive success and sex variation in nectarless and rewarding orchids (en)
skos:prefLabel	Reproductive success and sex variation in nectarless and rewarding orchids Reprodukční úspěch a variace genderu u orchidejí (cs) Reproductive success and sex variation in nectarless and rewarding orchids (en)
skos:notation	RIV/67179843:_____/04:00029136!RIV06-AV0-67179843
http://linked.open.../vavai/riv/strany	779;785
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/00/1124), P(IAA6087301), Z(AV0Z6087904)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Kindlmann, Pavel 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	584370
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/04:00029136
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	orchids (en)
http://linked.open.../riv/klicoveSlovo	orchids
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[28ECB429B8FE]
http://linked.open...i/riv/nazevZdroje	International Journal of Plant Sciences
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Evolutionarily stable strategies of pollination Community dynamics of aphidophagous predators
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	165
http://linked.open...iv/tvurceVysledku	Jersáková, Jana Kindlmann, Pavel
http://linked.open...n/vavai/riv/zamer	Ecology of the man's influencd landscape
issn	1058-5893
number of pages	7 (xsd:int)

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