The Eurasian otter L utra lutra is a top predator that feeds mostly on fish. Yet, studies show
the high plasticity of otter foraging behaviour and the varying importance of alternative food …

Although many wetlands have been lost, the European lowlands still hold a mosaic of
aquatic habitats covering rivers, lakes, ponds, ditches, springs, and swamps. To effectively …

The northern raccoon (Procyon lotor) is an invasive species in Europe and poses a serious
threat to indigenous biodiversity and human health. Raccoons can also cause important …

Long‐lived top predators shape biodiversity structure in their ecosystems and predator–prey
interactions are critical in decoding how communities function. Studies on the foraging …

Variation in predator diet is a critical aspect of food web stability, health, and population
dynamics of predator/prey communities. Quantifying diet, particularly among cryptic species …

Freshwater biodiversity is currently facing critical threats worldwide. As top predators, otters
are indicator species of ecosystem health, and flagship species for conservation in …

In the UK, the native European otter (Lutra lutra) and invasive American mink (Neovison
vison) have experienced parallel declines and expansions. Currently, the otter is recovering …

Eurasian otters are apex predators of freshwater ecosystems and a recovering species
across much of their European range; investigating the dietary variation of this predator over …

Latrines are accumulations of two to several hundred faeces resulting from the repeated use
of the same defecation sites by the same or several individuals. Many carnivores deposit …

In recent decades, the population of European eel Anguilla anguilla has strongly declined
and the stock is outside safe biological limits. Freshwater habitat degradation has been cited …