Pollinators of tropical dioecious angiosperms
نویسندگان
چکیده
منابع مشابه
Incidences and ecological correlates of dioecious angiosperms in Taiwan and its outlying Orchid Island
Sexual systems, particularly dioecy, and the habit correlations were examined for 3052 native angiosperms in Taiwan and 689 species from its outlying Orchid Island, and compared among different vegetation types. The majority of angiosperms in Taiwan are hermaphrodites (74.4%, N = 2272), followed by monoecious taxa (11.2%, N = 341), and then dioecious taxa (7.9%, N = 240) and polygamous taxa (6....
متن کاملDispersal of fig pollinators in Asian tropical rain forests
Fig pollinators (Agaonidae, Chalcioidea) lay their eggs in fig inflorescences (Ficus, Moraceae). Reproductive success for both partners is thus largely dependent on the dispersal of these tiny wasps. Some are known to cover substantial distances (> 10 km) using wind above the canopy. However, fig ecology is extremely varied, and hence one might also expect a diversity of pollinator dispersal st...
متن کاملBeta diversity of angiosperms in the tropical forests of Nilgiri Biosphere Reserve, India
The paper aims to evaluate the beta diversity in homogeneous and heterogeneous habitats in tropical forests. Also, the relationship between beta diversity and richness in the rain forests and monsoon forests is elucidated. The study was conducted in a forest landscape of Nilgiri Biosphere Reserve in the Western Ghats of India. The Wilson and Shmida index was used to assess the beta diversity of...
متن کاملSeed Set and Wasp Predation in Dioecious Ficus variegata from an Australian Wet Tropical Forest
A RECENT REVIEW (Bronstein 1992) of the interaction between figs (Ficus species, Moraceae) and their pollinators (Agaonidae: Hymenoptera) evaluated some potential conflicts of interest hat might constrain the evolution of the mutualism. One apparent conflict ensues when female wasps pollinate flowers while depositing their eggs in a fraction of fig ovaries. Some developing seeds are totally con...
متن کاملThe Stability of the Symbiosis between Dioecious Figs and Their Pollinators: a Study of Ficus Carica L. and Blastophaga Psenes L.
Each Ficus species depends on a specific mutualistic wasp for pollination. The wasp breeds on the fig, each larva destroying a female flower. It is, however, not known why the wasps have not evolved the ability to use all female flowers. In "dioecious" figs, the wasp can only breed in the female flowers of the "male" trees, so that pollination of a female tree is always lethal. The wasps should...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1993
ISSN: 0002-9122
DOI: 10.1002/j.1537-2197.1993.tb15337.x