The construction of the canal could also lead to increased agricultural activity and habitat changes.
There is little long-term data on habitat changes, so the extent of human impact is unclear.
Other possible threats include habitat change through population growth in the surrounding area.
In Alaska, beaver are moving further north as habitat changes and access to woody plants increase.
Regardless, numbers are dwindling throughout its range due to further habitat changes.
The habitat changes dramatically up here with the warm, damp air and feels completely different to anything you've experienced on the walk so far.
The elevation at which one habitat changes to another varies across the globe, particularly by latitude.
Presumably the population is declining because of habitat change.
River sharks are thought to be particularly vulnerable to habitat changes.
If the habitat changes, it may no longer be suitable for the animals and plants that live there.