Posts Tagged: yellowstone

Tall willow thickets return to northern Yellowstone

Posted on 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

Posted on 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

Posted on 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

Posted on 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

Posted on 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

Yellowstone Wolf Project Annual Report for 2017

Posted on December 29, 2018

“There were at least 97 wolves in 11 packs (three breeding pairs) living primarily in Yellowstone National Park at the end of December 2017,” the report reads. The report states that packs varied in size and could have anywhere from … read more

Posted in News, Northern Rockies, Regional Wolves | Tagged annual, project, report, yellowstone

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Maned Wolves

Maned wolves are more closely related to the forest fox and the bush dog. (Chrysocyon brachyurus.)
A maned wolf is really not a wolf or a fox – in fact they unique in the animal world, and the only species left in their genus.
Maned Wolf is Sometimes Called
Guara wolf or “lobo-guara” in Brazil. Their other nicknames include “fox-on-stilts” for their long legs, and for "fruit wolf" their penchant for fruit. Some people call them: “skunk fox” because of the very strong distinctive odor of the urine they use to mark territory.
How Many Maned Wolves Are Left in the Wild?
According to the World Wildlife Fund (WWF), there is an estimated 26,000 maned wolves left in the wild and a few hundred in captive breeding programs in zoos. See: "Encouraging News" below for more information. Maned wolves are found in the grasslands of Brazil, Paraguay, Bolivia, Peru, and northern Argentina. They are extinct in Uruguay.
Maned Wolf Conservation Notes
Habitat loss from encroaching human populations, including deforestation and the burning of their grassland habitat for farm use, plus the diseases introduced by domesticated animals, including dogs, have all taken a heavy toll on the maned wolf. Along with more humans came hunting encouraged by myth and erroneous beliefs: the first was the idea that maned wolves’ organs were medicinal (the teeth) or lucky (the right eye ball); the second is that maned wolves killed livestock and chickens. In truth, this animal’s organs are only useful to the individual maned wolf to which they are connected. As for killing livestock, aside from small rodents, fish, and some birds, these animals are mostly vegetarian. Physically, although the manned wolf is large enough, his small teeth and jaws make it highly improbable, if not impossible, for him to kill any livestock other than the occasional newborn lamb, pig, or free range chicken. See below "On the Menu" for more information. Aside from being hunted, another human born threat is the motor vehicle. Farms, ranches, and mineral mines are fast breaking up huge expanses of the Cerrado. New roads follow human settlement, and traffic follows the new roads. Vehicles on the Trans-Chaco highway are responsible for killing numerous maned wolves every year.

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