Threats faced by Humboldtia bourdillonii Prain (Magnoliopsida: Fabales: Fabaceae), an endangered tree endemic to the southern Western Ghats, India
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Abstract
Humboldtia bourdillonii is a threatened tree species, endemic to the Western Ghats. Recently, `the species has been facing serious ecological and man-made threats in its natural habitat. The tree is highly infested with insects—jumping thrips and weevils. H. bourdilloni has also an interaction with the Malabar Giant Squirrel Ratufa indica. Even though the fruits of this tree species are a food source for the squirrel, the animal spoils the fruits & seeds. Reduced visiting intensity of pollinators and irregularities in flowering & fruiting have affected the species. Conversion of forest areas into plantations, recent abnormal monsoon flooding in Kerala, and human activities have also negatively affected this species.
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