Did you ever notice that the sightings of large carnivores have increased in recent years in recent years? If so, then get used to it, as the number of sightings of large animals in human territories will increase sharply in the coming years, new study reveals. Some claim that these animals were in search of food or a new habitat as their population grew, which is why they entered human territories.
However, the new study has something else to say. According to the study by the authors of Duke University, large predators such as alligators, sea otters, gray wolves, mountain lions, and other animals do not share common places in search of food or to expand their colony, but they are fighting people to take their ecosystem back to them People have slowly snatched off in the past.
"We can no longer cling to a large alligator on a beach or coral reef as an aberrant sighting," said Brian Silliman, Rachel Carson's Associate Professor of Marine Conservation Biology at Duke's Nicholas School of the Environment. "It's not an outlier or short-term blip. It's the old norm as it was before we pushed these species into hard-to-reach shelters on their last legs, and now they're coming back."
Scientists found that effect was the same for both marine and terrestrial species. Both species colonize their ecosystem, which was once their hunting ground.
"The assumption, which is widespread in both the scientific and popular media, is that these animals live where they live, because they are habitat specialists, alligators love swamps, sea otters are best in saltwater forests, orang Forests need undisturbed forests, marine mammals prefer polar waters, but this is based on studies and observations made during the sharp decline of these populations and now, when they recover, they surprise us by showing how adaptable and cosmopolitan they really are are, "said Silliman.
The study author explained that 90 percent of alligator diets are from marine animals, including stingrays, sharks, shrimp, horseshoe crab and manatee. All these species live in seagrass and mangrove ecosystems, which is why alligators live very well in salt water. The researchers are now surprised to see an unexpected adaptability of these returning species, which also spawn several new species of conservation.
"It tells us that these species can thrive in a much wider variety of habitats, such as sea-otters adapting and thriving when we introduce them into estuaries that do not have kelp forests." Even if kelp forests disappear due to climate change, the otters will not do that, "he said. "Maybe they can even live in rivers, we'll find out soon."
The study also found that there are several benefits to top predators returning to the lost ecosystem. For example, the return of sea otters to seabed beds can greatly help to protect the beds from the wrath of epiphytic algae, as otters eat dungeness crabs, which otherwise eat too many algae nests that form the bed's front defensive line.
"It would cost tens of millions of dollars to protect these beds by reconstructing upstream watersheds with appropriate nutrient buffers," said Silliman, "but Sea Otters achieve a similar result alone, with little or no taxpayer cost."