Why is biodiversity decreasing around the world?

Biodiversity faces a wide number of threats, including land-use change, habitat loss and fragmentation (e.g. due to agricultural expansion), over-exploitation of natural resources (e.g. unsustainable logging, hunting and fishing), pollution (e.g. excess fertiliser use and marine litter), invasive alien species and ...

1. Why is biodiversity decreasing worldwide?
2. Why is biodiversity decreasing?
3. What is loss of biodiversity?
4. Where does loss of biodiversity occur?
5. What is the effect of declining biodiversity to the community?
6. How does loss of biodiversity affect the environment?

Why is biodiversity decreasing worldwide?

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.

Why is biodiversity decreasing?

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 is loss of biodiversity?

Biodiversity loss refers to the decline or disappearance of biological diversity, understood as the variety of living things that inhabit the planet, its different levels of biological organisation and their respective genetic variability, as well as the natural patterns present in ecosystems.

Where does loss of biodiversity occur?

Ecologists emphasize that habitat loss (typically from the conversion of forests, wetlands, grasslands, and other natural areas to urban and agricultural uses) and invasive species are the primary drivers of biodiversity loss, but they acknowledge that climate change could become a primary driver as the 21st century ...

What is the effect of declining biodiversity to the community?

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.).

How does loss of biodiversity affect the environment?

Loss of biodiversity undermines the ability of ecosystems to function effectively and efficiently and thus undermines nature's ability to support a healthy environment. This is particularly important in a changing climate in which loss of biodiversity reduces nature's resilience to change.