ECOLOGY
HUMANS AND THE BIOSPHERE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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habitat fragmentation
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introducing invasive species
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releasing pollution into food webs
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planting native species
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over harvesting and hunting
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Detailed explanation-1: -Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming.
Detailed explanation-2: -The main direct cause of biodiversity loss is land use change (primarily for large-scale food production) which drives an estimated 30% of biodiversity decline globally. Second is overexploitation (overfishing, overhunting and overharvesting) for things like food, medicines and timber which drives around 20%.
Detailed explanation-3: -Biodiversity, or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change.
Detailed explanation-4: -Indiscriminate hunting of large numbers of wildlife will have a negative impact on species populations, particularly if reproductive females or young males are targeted. Social behaviour is widely observed in larger mammals and will be altered if the population and gender profile in herds are changed.