Other causes of human-related manatee mortalities include being crushed and/or drowned in canal locks and flood control structures; ingestion of fish hooks, litter and monofilament line; entanglement in crab trap lines; and vandalism.
Ultimately, however, loss of habitat is the most serious threat facing manatees today.
Pollution is anything harmful that is put into the air.
Sometimes you can actually see the smog, or mix of pollutants in the air, around large cities.
As you see, some plants and animals are in serious trouble. Some of the factors causing animals to become endangered or extinct are natural causes which are out of human control. Severe weather can cause prolonged periods of climates that are cooler or warmer than what a species is adapted for.
Warmer climates can allow diseases and epidemics to grow rampant.There are approximately 3,000 West Indian manatees left in the United States .Adding to the problems associated with fostering the manatee population, investigators have reported that despite the fact that the manatee is protected as an endangered species, in 2002 alone a record number of 95 manatees were killed by boaters in the Florida region. Make your own flashcards that can be shared with others.Learn with extra-efficient algorithm, developed by our team, to save your time.This lesson is going to discuss some of the major factors that are leading animals to become endangered, with one of the main ones being humans.In 1978, approximately 1,000 Sumatran tigers lived in Sumatra, Indonesia. This puts the Sumatran tiger on the critically endangered species list because of its risk of becoming extinct.Take a look at the image that illustrates examples of what people have done that put plant and animal lives at risk.The burning of fossil fuels, which supplies much of our electricity, causes pollutants like sulfur dioxide and nitrogen oxide to go into the air where they join water droplets in the clouds.Of all the animal species currently listed as endangered, the manatee has garnered a large amount of public attention.Non-violent aquatic animals, manatees often reside in “shallow, slow-moving rivers, estuaries, saltwater bays, canals and coastal areas”.