Results 171 to 180 of about 1,468 (192)
Some of the next articles are maybe not open access.
American Journal of Botany, 1993
Cephalanthus occidentalis L. is protandrous and presents pollen secondarily on the stigma surface. Because self‐pollen is present on the stigma, the degree of selling vs. outcrossing in this species will depend on 1) the phenology of pollen presentation and stigma receptivity; 2) whether the species is self‐incompatible; and 3) the rates of self vs ...
Fiona M. Imbert, Jennifer H. Richards
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Cephalanthus occidentalis L. is protandrous and presents pollen secondarily on the stigma surface. Because self‐pollen is present on the stigma, the degree of selling vs. outcrossing in this species will depend on 1) the phenology of pollen presentation and stigma receptivity; 2) whether the species is self‐incompatible; and 3) the rates of self vs ...
Fiona M. Imbert, Jennifer H. Richards
openaire +1 more source
Plant Size, Sexual Selection, and the Evolution of Protandry in Dioecious Plants
The American Naturalist, 2014It is frequently observed that males of dioecious plant species flower earlier in the season than females, although the generality of this pattern has not been quantified. One hypothesis for earlier male flowering is that females require more time for resource acquisition before reproduction; another is that selection for access to unfertilized ovules ...
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Protogyny, protandry, and bimodal emergence patterns in necrophagous Diptera
The Canadian Entomologist, 2001AbstractThe emergence patterns of Diptera breeding in small-sized and buried carrion were studied in rearing experiments with field-exposed baits. Development times are reported for 52 species in the families Phoridae, Sphaeroceridae, Sepsidae, Heleomyzidae, Anthomyiidae, Fanniidae, Muscidae, Sarcophagidae, Psychodidae, and Sciaridae.
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Protandry, pollination, and self‐incompatibility in Discaria toumatou
New Zealand Journal of Botany, 1985Abstract Discaria toumatou (Rhamnaceae) is a spiny shrub endemic to New Zealand. The small white flowers are protandrous. Pollen is presented first and removed by wasps, flies, and bees which visit the flowers; after one to three days the three stylar branches unfold and an exudate is produced ...
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Covariation between protandry and sexual size dimorphism is age specific in songbirds
Journal of Ornithology, 2023Christopher G Guglielmo +2 more
exaly
HERITABILITY OF DEVELOPMENT TIME AND PROTANDRY IN THE PITCHER-PLANT MOSQUITO, WYEOMYIA SMITHII
Ecology, 1997Christina Holzapfel +2 more
exaly