Pollination ecology and fruiting behavior of Pavetta indica L. (Rubiaceae), a keystone shrub species in the southern Eastern Ghats forest, Andhra Pradesh, India
| Autor: | M. Mallikarjuna Rao, C. Prasada Rao, K. Venkata Ramana, A.J. Solomon Raju, Maddala Sulakshana |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Pavetta indica psychophily Pollination lcsh:QH1-199.5 Seed dispersal ved/biology.organism_classification_rank.species Management Monitoring Policy and Law Biology lcsh:General. Including nature conservation geographical distribution medicine.disease_cause 010603 evolutionary biology 01 natural sciences Shrub Geitonogamy keystone shrub species ornithochory Pollen lcsh:QH540-549.5 Botany medicine Nectar Keystone species Ecology Evolution Behavior and Systematics mixed breeding system Nature and Landscape Conservation Reproductive success Ecology ved/biology Flowering phenology Animal Science and Zoology lcsh:Ecology 010606 plant biology & botany |
| Zdroj: | Journal of Threatened Taxa, Vol 8, Iss 9, Pp 9155-9170 (2016) |
| ISSN: | 0974-7907 0974-7893 |
| Popis: | Pavetta indica is a massive bloomer for a brief period in May. The flowers are hermaphroditic, strikingly protandrous, self and cross-compatible, nectariferous and psychophilous. They possess secondary pollen presentation mechanism as a device to avoid autonomous autogamy but it does not prevent geitonogamy. The fruit set largely occurs through geitonogamy and xenogamy. Butterflies, especially papilionids, pierids, nymphalids, and sphingid hawk moth pollinate the flowers while collecting nectar. Honey bees and blue-banded digger bees feed on pollen and effect only accidental pollination. The nectar is sucrose-rich and contains essential and non-essential amino acids. Birds are seed dispersal agents. Seeds are non-dormant and germinate readily during rainy season but their continued growth and establishment is subject to the availability of soil moisture and nutrients. The plant is not able to populate itself in its natural area. The local uses of different parts of the plant have been found to be affecting its reproductive success and natural regeneration rate. Therefore, regulation of the uses of this plant is recommended for its survival and restoration of its population size in the natural areas due to its role as a keystone species for bees and butterflies during dry season. |
| Databáze: | OpenAIRE |
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