CBSE 2025 · Region 4 · Set 1 · Q27 · 3 marks
According to a recent wildlife report, the biggest threat to the tiger's survival in Mudumalai Tiger Reserve (MTR) was found to be a small, beautiful flower, Lantana camara, a tropical American shrub, that invaded $\displaystyle 40$% of India's tiger range. Tamil Nadu department's Lantana weed eradication drive helped to restore the dying MTR thereby also reducing human-wildlife conflicts. MTR is home to $\displaystyle 25$ species of grasses and legumes. Answer the given questions based on the information given above.(a)Explain how did the removal of Lantana help in restoring the dying Mudumalai Tiger Reserve.(b)Why is the invasion of Lantana camara a cause of concern in MTR.
According to a recent wildlife report, the biggest threat to the tiger's survival in Mudumalai Tiger Reserve (MTR) was found to be a small, beautiful flower, Lantana camara, a tropical American shrub, that invaded $\displaystyle 40$% of India's tiger range. Tamil Nadu department's Lantana weed eradication drive helped to restore the dying MTR thereby also reducing human-wildlife conflicts. MTR is home to $\displaystyle 25$ species of grasses and legumes. Answer the given questions based on the information given above.
(a)
Explain how did the removal of Lantana help in restoring the dying Mudumalai Tiger Reserve.
(b)
Why is the invasion of Lantana camara a cause of concern in MTR.
Marking-scheme solution
(a)
Removal of Lantana allows other plants to grow, due to which
herbivores population increases and that helps to restore the tiger population
(b)
Lantana being invasive does not allow other plants to grow in its
surroundings, this will decrease in herbivore population which can in turn cause decline in the tiger population.
Biodiversity and ConservationBiodiversity ConservationUnderstandshort_answermedium
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.