🌱 Environment & EcologyUPSC 2017Sustainable Development

Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences?1. Pollination of some plants could be adversely affected.2. There could be a drastic increase in the fungal infections of some cultivated plants.3. It could lead to a fall in the population of some species of wasps, spiders and birds. Select the correct using the code given below:

a1 only
b2 and 3 only
c1 and 3 only
d1, 2 and 3
✓ Correct answer: c) 1 and 3 only
ExplanationTransfer of pollen grains (shed from the anther) to the stigma of a pistil is termed pollination.Flowering plants have evolved an amazing array of adaptations to achieve pollination.Depending on the source of pollen, pollination is divided into three types, i. e. Autogamy, Geitonogamy and Xenogamy.Statement 1 is correct: Butterflies are important pollinators for many flowering plants.Plant species particularly those that produce brightly colored, scented flowers with deep nectar tubes are adapted to butterfly pollination.A drastic fall in butterfly populations would result in reduced pollination, affecting plant reproduction and possibly leading to a decline in the popula- tion of such plant species.Statement 2 is incorrect: There is no direct link between butterfly populations and fungal infections in cultivated plants.Fungal infections are influenced by factors like humidity, temperature, plant health, and soil conditions rather than by the presence or absence of butterflies.Statement 3 is correct: Butterflies form a crucial part of the food chain, serving as prey for birds

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