Scientists say Nile crocs may be thriving in Sunshine State swamps
The latest non-native species to invade Florida’s subtropical clime is a man-eater, according to University of Florida researchers who say they’ve genetically identified Nile crocodiles living in the swamps of the Sunshine State.
The aquatic reptiles can grow as long as 18 feet and weigh as much as a small car, and in their native habitat eat everything from hippos and zebras to humans. In Florida, they could eat native birds, fish and mammals, as well as the state’s native crocodile and alligators, said the researchers, have confirmed the capture of multiple Nile crocodiles in the wild, using DNA analysis.
And for now, there is no smoking gun pointing to a single reason for the decline. That means there’s no easy answer, either, the scientists said, explaining that, across the U.S. there are multiple and geographically diverse factors that play role.
Trapping and hunting near parks cuts has big impact
Many Americans travel thousands of miles for a chance to spot wolves in the wild, but a new study shows that their chance of spotting the predators decreases dramatically when hunting and trapping is allowed. In 2013, Public Employees for Environmental Responsibility first raised the alarm that dwindling wolf numbers near Denali National Park are affecting wildlife watching.
The new research, published in the journal PLOS ONE, suggests visitors to national parks were just half as likely to see wolves in their natural habitat when wolf hunting was permitted just outside Denali National Park’s boundaries during a period from 1997- 2013. Other important factors linked to wolf viewing rates include, the proximity of wolf dens to the Park Road and the regional wolf population.
Colorado Parks and Wildlife is looking to add members to its Summit County Wildlife Transport Team, an all volunteer group of citizens devoted to helping the agency respond to wildlife emergencies.
Interested residents can get more information at a May 16 information session, 7 p.m. at the North Branch Library in Silverthorne. During the session, CPW will screen applicants and review requirements and expectations.
“Volunteers help us by responding and assisting with certain types of wildlife calls, usually small mammals and birds that are injured or causing a nuisance,” said District Wildlife Manager Elissa Knox of Summit County. “Our current team has several seasoned volunteers that are an invaluable asset. We encourage people to join them and help us educate the public and help wildlife.” Continue reading “Volunteers needed for Summit County wildlife rescue team”→
Study suggests more protection needed for rare mountain predators
Biologists tracing the elusive Himalayan wolf say that new genetic studies show the species branched off from its relatives so long ago that they are divergent from the whole globally distributed wolf-dog clade. Based on that isolated genetic isolation, the Himalayan wolf should considered a species of particular conservation concern.
Even though I’m not a wildlife photographer, every now and then, a hapless animal cross in front of my lens. If I’m lucky, I manage to snap the shutter at the right moment to capture a halfway decent image. That always makes me happy, until I remember that humanity’s completely unsustainable approach to life is putting many other species at serious risk of extinction. Pesticides threaten many insects, especially pollinators that are so critical to ensuring a sustainable food supply. Reptiles like turtles are also threatened by impacts to water quality and wetlands, and many other species are being lost because of habitat fragmentation and, of course, climate change. If we can’t find ways to sustain the web of life that sustains us, we’re likely to become an endangered species ourselves. Some people would argue that we already are. Visit the online Summit Voice gallery to purchase landscape and nature prints — a great way to support independent journalism.