Posts Tagged: yellowstone
Wolves without borders: Transboundary survival of wolves in Banff National Park over three decades
October 27, 2020
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
Posted in Hunting Wolves | Tagged carnivore, Exploitation, hunting, mortality, Protected area, trapping, yellowstone
Tall willow thickets return to northern Yellowstone
May 31, 2020
Northern Yellowstone National Park provides an example of passive restoration, as wetlands and riparian areas there lost most tall willows in the 20th century, due to intensive herbivory by elk (Cervus canadensis). Following large carnivore restoration in the late 1990s, … read more
Posted in Trophic Cascade | Tagged bison, browsing, Cervus canadensis, passive restoration, Salix, sandbar willow, tall willows, trophic cascade, ungulate herbivory, yellowstone
Wolves for Yellowstone: Dynamics in Time and Space
July 6, 2019
The reintroduction of gray wolves (Canis lupus) to Yellowstone National Park is the most celebrated ecological experiment in history. As predicted by population models, the rapid recovery of a wolf population caused both temporal and spatial variability in wolf–ungulate interactions … read more
Posted in Trophic Cascade | Tagged dynamics, space, wolves, yellowstone
Aspen is Making a Comeback in and Around Yellowstone National Park, Because of Predators
July 6, 2019
Quaking aspen (Populus tremuloides) recruitment during the 1980s–90s was suppressed by Rocky Mountain elk (Cervus canadensis) herbivory on winter ranges in the Yellowstone region, and saplings (young aspen taller than 2 m) were rare. Following the 1995–96 reintroduction of gray … read more
Posted in Trophic Cascade | Tagged around, aspen, because, comeback, making, national, yellowstone
Yellowstone Science – The Challenge of Understanding Northern Yellowstone Elk Dynamics after Wolf Reintroduction
July 4, 2019
The status and trend of the northern Yellowstone elk herd has been an enduring conservation issue throughout the history of Yellowstone National Park. It is the largest of about seven migratory elk herds that graze the park’s high-elevation meadows during … read more
Posted in General | Tagged challenge, dynamics, northern, science, understanding, yellowstone
Yellowstone Science – Motherhood
June 15, 2019
For many of Yellowstone’s species, spring’s arrival not only brings relief from winter’s challenges, but also resets the biological calendar that governs individuals’ lives. As April’s temperatures rise and its expanding daylight weakens the veneer of snow and ice, many … read more
Posted in Biology | Tagged motherhood, science, yellowstone
