Biodiversity underpins the health of the planet and has a direct impact on all our lives. Put simply, reduced biodiversity means millions of people face a future where food supplies are more vulnerable to pests and disease, and where fresh water is in irregular or short supply. For humans that is worrying.
Why is the loss of biodiversity a problem?
Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.
Why should we worry about loss of biodiversity?
Biodiversity is the variety of life and fundamental to the survival of humans. Biodiversity loss affects the whole of nature because by allowing the species to go extinct unnaturally or forests to disappear upsets the balance that is required for the support system on Earth.
How bad is biodiversity loss?
The Report finds that around 1 million animal and plant species are now threatened with extinction, many within decades, more than ever before in human history. The average abundance of native species in most major land-based habitats has fallen by at least 20%, mostly since 1900.
How does loss of biodiversity affect the environment?
Declining biodiversity lowers an ecosystem’s productivity (the amount of food energy that is converted into the biomass) and lowers the quality of the ecosystem’s services (which often include maintaining the soil, purifying water that runs through it, and supplying food and shade, etc.).
What is the disadvantages of low biodiversity in economics?
Disadvantages of low diversity are as follows: Diseases are more likely to spread. Ecosystem with low diversity is less productive. … There is a lot of pressure for food and energy on the ecosystem.
What are the cause and effect of loss of biodiversity?
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. In each case, human beings and their activities play direct roles.
What would happen if there was no biodiversity?
There will be no sign of life in the ocean without biodiversity because biodiversity insures life in anywhere by providing food and air. If the ocean lost it’s biodiversity the animals would have nothing to eat and the fish’s water that turns into the fish’s air will be very unclean.
How does biodiversity loss affect the economy?
Food production relies on biodiversity for a variety of food plants, pollination, pest control, nutrient provision, genetic diversity, and disease prevention and control. … Decreased biodiversity can lead to increased transmission of diseases to humans and increased healthcare costs.
Why biodiversity loss hurts humans as much as climate change?
Without bees pollinating crops and trees turning carbon dioxide into oxygen, even basic human tasks such as eating and breathing become harder. But quieter losses hurt people too, such as the decline of medicinal plants and mangroves that protect coastlines.
What are the effects of biodiversity?
These ecological effects of biodiversity in turn are affected by both climate change through enhanced greenhouse gases, aerosols and loss of land cover, and biological diversity, causing a rapid loss of biodiversity and extinctions of species and local populations.
How does the loss of species affect humans?
2.1 Biodiversity loss has negative effects on several aspects of human well-being, such as food security, vulnerability to natural disasters, energy security, and access to clean water and raw materials. … For example, actions to increase food production can lead to reduced water availability for other uses.