Sökning: id:"swepub:oai:DiVA.org:uu-448207" >
Mechanisms of Male-...
Mechanisms of Male-Male Interference during Dispersal of Orchid Pollen
-
- Harder, Lawrence D. (författare)
- Univ Calgary, Dept Biol Sci, Calgary, AB T2N 1N4, Canada
-
- Richards, Shane A. (författare)
- Univ Tasmania, Sch Nat Sci, Sandy Bay, Tas 7001, Australia
-
- Ågren, Jon (författare)
- Uppsala universitet,Växtekologi och evolution
-
visa fler...
-
- Johnson, Steven D. (författare)
- Univ KwaZulu Natal Pietermaritzburg, Sch Life Sci, Ctr Funct Biodivers, Private Bag X01, ZA-3209 Scottsville, South Africa
-
visa färre...
-
(creator_code:org_t)
- University of Chicago Press, 2021
- 2021
- Engelska.
-
Ingår i: American Naturalist. - : University of Chicago Press. - 0003-0147 .- 1537-5323. ; 197:2, s. 250-265
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://uu.diva-port... (primary) (Raw object)
-
https://www.journals...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Siring success of flowering plants depends on the fates of male gametophytes, which compete for access to stigmas, stylar resources, and ovules. Although rarely considered, pollen may often compete during dispersal, affecting the processes required for export to stigmas: pollen pickup, transport, and deposition. We quantified dispersal interference by tracking bee-mediated dispersal of stained Anacamptis morio (Orchidaceae) pollen from individual donor flowers and inferred the affected dispersal mechanisms on the basis of the fit of a process-based model. During individual trials, all recipient flowers were either emasculated, precluding interference with donor pollen, or intact, adding potentially interfering pollen to the pollinator. The presence of competing pollinaria on bees reduced pickup of additional pollinaria, doubled the overall proportion of lost donor pollen, and reduced total pollen export by 27%. Interference specifically increased loss of donor pollen between successive flower visits and variation in deposition among trials, and it likely also reduced pollen contact with stigmas and pollen deposition when contact occurred. Thus, by altering pollen removal, transport, and deposition, male-male interference during pollen dispersal can significantly—and perhaps commonly—limit plant-siring success.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Nyckelord
- interference competition
- male-male interference
- orchid
- pollen dispersal
- pollination
- sexual selection
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas