Pollinator visitation, stigmatic pollen loads and among-population variation in seed set in Lythrum salicaria
نویسندگان
چکیده
منابع مشابه
Linking pollinator visitation rate and pollen receipt.
The majority of flowering plants require animals for pollination, a critical ecosystem service in natural and agricultural systems. However, quantifying useful estimates of pollinator visitation rates can be nearly impossible when pollinator visitation is infrequent. We examined the utility of an indirect measure of pollinator visitation, namely pollen receipt by flowers, using the hummingbird-...
متن کاملHeterospecific pollen deposition in Delphinium barbeyi: linking stigmatic pollen loads to reproductive output in the field.
BACKGROUND AND AIMS Most pollinators are generalists and therefore are likely to transfer heterospecific pollen among co-flowering plants. Most work on the impacts of heterospecific pollen deposition on plant fecundity has utilized hand-pollination experiments in greenhouse settings, and we continue to know very little about the reproductive effects of heterospecific pollen in field settings. ...
متن کاملRe-establishment of clinal variation in flowering time among introduced populations of purple loosestrife (Lythrum salicaria, Lythraceae).
Range expansion during biological invasion requires that invaders adapt to geographical variation in climate, which should yield latitudinal clines in reproductive phenology. We investigated geographic variation in life history among 25 introduced populations of Lythrum salicaria, a widespread European invader of North American wetlands. We detected a strong latitudinal cline in initiation of f...
متن کاملErratum: Biological activity and microscopic characterization of Lythrum salicaria L
Author details Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. Traditional Iranian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran. Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. Department of Pharmacology and Toxicology, Faculty of Pharm...
متن کاملStigmatic exudate in the Annonaceae: Pollinator reward, pollen germination medium or extragynoecial compitum?
Although "dry-type" stigmas are widely regarded as ancestral in angiosperms, the early-divergent family Annonaceae has copious stigmatic exudate. We evaluate three putative functions for this exudate: as a nutritive reward for pollinators; as a pollen germination medium; and as an extragynoecial compitum that enables pollen tube growth between carpels. Stigmatic exudate is fructose dominated (7...
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ژورنال
عنوان ژورنال: Journal of Ecology
سال: 2004
ISSN: 0022-0477
DOI: 10.1111/j.0022-0477.2004.00893.x