Scientists have developed a new method to map and monitor alien species in the polar regions.
This study signals the need for fisheries management to account for ecosystem constraints when setting catch limits in periods of low forage fish biomass.
Reduced availability of key prey forces adult puffins to fly further from their colonies to find food. Meanwhile, their chicks starve at the nests.
The Scandinavian and Finnish brown bear populations are among the largest in Europe but were until recently separated. A new study by Norwegian, Swedish, and Finnish researchers demonstrates that connectivity has been restored with decent exchange of individuals and genes between countries.
Using data from five different marine ecosystems, researchers have tested the hypothesis of predator‐pit dynamics for forage fish. By examining the consumption of fish by seabirds and the effect of such predation on fish population dynamics, they found that seabird-induced mortality of forage fish varies with fish abundance.
More than a quarter of the individual auks in which mercury levels were measured outside the breeding season exceeded the toxicity threshold.
It is no longer sufficient to protect nature – there is also a need to restore what has been degraded. Ecological restorations are actions to improve the ecological condition and values of an ecosystem that has been degraded, damaged, or destroyed. Mitigation and compensating measures can also be part of restoration.