“Less biodiversity means that plants and animals are more vulnerable to pests and diseases. Compounded by our reliance on fewer and fewer species to feed ourselves, the increasing loss of biodiversity for food and agriculture puts food security and nutrition at risk.”
How does biodiversity contribute to food security?
Agricultural biodiversity is essential to satisfy basic human needs for food and livelihood security. … It contributes directly to food security, nutrition and well-being by providing a variety of plant and animals from domesticated and wild sources.
How does loss of biodiversity affect food?
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.
How does impact on the environment affect food security?
Climate change affects food production and availability, access, quality, utilization, and stability of food systems. In short, it impacts all aspects of the food system. Extreme weather-related disasters are increasing and reduce the yields of major crops. Higher levels of CO2 reduce the nutritional value of crops.
What are the effects of biodiversity loss?
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.
How does biodiversity loss affect farmers?
We have seen what happens when biodiversity is reduced. The consequences are most apparent with increased pest problems as crop monocultures expand, replacing the diversity of natural vegetation. The natural predators of these pests decline as local habitats decrease.
What affects food security?
Physical factors (such as climate, soil quality and gradient) and human factors (such as technology) have historically controlled the quantity and type of food produced in any location. … When they suffer drought there is less food available globally and global food prices increase, leaving the poor most vulnerable.
What are the factors affecting food security?
Several factors can affect food security including population increase; climate change; urbanization and globalization; land use shifts and water availability; income growth and nutritional trends; and tendencies in global energy supply and food trading (Von Braun, 2007; Premanandh, 2011) .
What are two ways that pollution impacts food security?
Soil pollution has bad consequences: It impacts food security both by impairing plant metabolism and thus reducing crop yields, as well as by making crops unsafe for consumption by animals and humans.
How does biodiversity affect ecosystem services?
Many key ecosystem services provided by biodiversity, such as nutrient cycling, carbon sequestration, pest regulation and pollination, sustain agricultural productivity. Promoting the healthy functioning of ecosystems ensures the resilience of agriculture as it intensifies to meet growing demands for food production.
Why is biodiversity a problem?
Biodiversity includes diversity within species (genetic diversity), between species (species diversity), and between ecosystems (ecosystem diversity). … Biodiversity loss disrupts the functioning of ecosystems, making them more vulnerable to perturbations and less able to supply humans with needed services.
What are the causes and effects 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.