Conservation organisations struggle to directly assist all threatened species, so deciding where to spend limited resources is a common problem. In a new paper, Oppel and colleagues show that, for long-lived species, a population may decrease long before this trend becomes evident in the part of the population that can be counted. Albatrosses are among the largest flying birds in the world, and they can … Continue reading Apparently stable albatross population is actually decreasing due to mouse predation