Context:
Climate change is leading to a significant mismatch in plant cycles and pollinators behaviour, which has multiple impacts on the phenology and other traits of plants.
Impact of Climate Change on Plants & Pollinators
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Impact due to Rise in Temperature:
- Rapid Evolution of Plant: Warmer weather has resulted Significant changes
- Early flowering,
- low fruit production
- Low quality.
- Low Nectar production: Reduced nectar production can diminish food sources for pollinators, accelerating their population decline.
- Due to UV-radiation: Colour of flower changes which makes less favourable conditions for pollinators to pollinate on plants.
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Impact due to Selfing Syndrome:
- Due to reduction in pollinators which helps in cross pollination resulting in them to perform self pollination, further leads to reduction in diversity .
- Shift in Flowering Plants’ Reproduction: Reproductive evolution may stem from environmental changes such as habitat destruction.
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Ecosystem Impact of Decline of Pollinators:
- It could disproportionately affect certain plant species.
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Impact due to Spread of Invasive Species:
- Shifts Pollinators away from traditional species.
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Biodiversity Effects :
- The effects of climate change on species fitness and persistence are increasing & its diverse impacts on biodiversity and ecological interactions.
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Impact due to rise in Carbon Dioxide:
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- Which alters the nutritional quality of plant products due to change in pollinators incidence.
Pollination: The process of transfer of pollen grains, from anther to the stigma of the same flower or of different flower.
Self pollination :
- It involves the transfer of pollen grains from the anthers to the stigma of the same flower or of another flower borne by the same plant.
- It can induce inbreeding in species, reduce diversity.
Cross Pollination :
- It involves the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant. It is also called xenogamy.
- It allows plant to mix genes & add new traits.
Also Read: Sexual Reproduction In Plants |
Also Read: Self Pollination In Parisian Pansies Flowering Plant
News Source : DTE
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