Final answer:
Changes in environmental conditions can result in new ecosystems and loss of biodiversity, but human activities are the primary cause of biodiversity loss. The loss of biodiversity is a significant concern as it can disrupt ecosystem functioning and impact human well-being.
Step-by-step explanation:
The statement that changes in environmental conditions always result in new ecosystems and loss of biodiversity is partially correct. While environmental changes can lead to the formation of new ecosystems and an increase in the number of some species and evolution of new species, they also lead to the extinction of some species. This loss of biodiversity is a significant concern because it can disrupt ecosystem functioning and impact human well-being.
It is important to note that the loss of biodiversity is primarily caused by human activities such as habitat destruction, introduction of exotic species, and unsustainable resource use. These activities can lead to the displacement or extinction of species, loss of interactions between species, and loss of ecosystem productivity.
There are various measures of biodiversity, including the number of species, genetic diversity, chemical diversity, and ecosystem diversity. Loss of biodiversity can result in the loss of ecosystem services like pollination, nutrient cycling, and pest control, which are essential for human agriculture.