Author Archives: Nathan Lyle

If applied generally to other species, the 2019 rule’s approach to ESA implementation would represent a significant scaling back of recovery efforts for widely distributed species that would increase both short term vulnerability and long-term loss of adaptive potential. Recent … read more

Thanks to your support, the National Wolfwatcher Coalition awarded two mini grants. The recipients are The Voyageurs Wolf Project and Tundra Speaks. The Voyageurs wolf project is a collaborative effort between the University of Minnesota and Voyageurs National Park. They … read more

Large carnivores are important ecological drivers of ecosystem dynamics when they occur at ecologically effective densities. They are also challenging to conserve, especially in transboundary settings such as along borders of parks and protected areas. Here, we tested for effects … read more

Caribou and reindeer Rangifer tarandus are declining across North America and Scandinavia in part from wolf Canis lupus-mediated apparent competition with more abundant ungulate prey species. While caribou generally persist in areas with low wolf density, wolf packs that overlap … read more

Wolves’ attacks on hunting dogs are a major conflict between wolves and hunters in Northern Europe. The reasons affecting the risk of wolves’ (Canis lupus) attacks on hunting dogs are poorly known. We examined whether the number of wolves in … read more

Investigation of tree growth in Isle Royale National Park in Michigan revealed the influence of herbivores and carnivores on plants in an intimately linked food chain. Plant growth rates were regulated by cycles in animal density and responded to annual … read more