The Pantanal is the world's largest freshwater wetland, located in the geographical centre of
South America. It is relatively well conserved, and features unique landscapes, ecosystems …

The lack of long-term monitoring data for many wildlife populations is a limiting factor in
establishing meaningful and achievable conservation goals. Even for well-monitored …

Human activities have doubled the pre-industrial supply of reactive nitrogen on Earth, and
future rates of increase are expected to accelerate. Yet little is known about the capacity of …

We compared the effects of water resource development on migratory fish in two North
American rivers using a descriptive approach based on four high-level indicators:(1) trends …

Understanding climate change and its potential impact on species, populations and
communities is one of the most pressing questions of twenty-first-century conservation …

Generalist predators can contribute to extinction risk of imperiled prey populations even
through incidental predation. Quantifying predation on small populations is important to …

Many streams and rivers in the Pacific Northwest of the US are inherently oligotrophic, and
primary production in these ecosystems is assumed to be nutrient-limited. In many of these …

ABSTRACT In November 1991, the US National Marine Fisheries Service listed Snake River
Sockeye Salmon (Oncorhynchus nerka) as endangered under the US Endangered Species …

Seabirds are major vertebrates in the coastal ecosystems of the Canadian High Arctic,
where they transport substantial amounts of marine-derived nutrients and pollutants from …

Understanding how animals respond to large-scale environmental changes is difficult to
achieve because monitoring data are rarely available for more than the past few decades, if …