An apex predator is at the top of a food chain. It has no predators of its own. In 1872 when Yellowstone National Park was established, the gray wolf was a critical apex predator in the park’s ecosystem. But wildlife in the new park had no legal protections. Gray wolves were especially at risk. From the time colonists began arriving in North America, wolves were objects of fear and hatred. With
Nutrient pollution is one of America’s most widespread, costly and challenging environmental problems, and is caused by excess nitrogen and phosphorus in the air and water (epa.gov/nutrientpollution/problem.). Nitrogen occurs naturally in the environment, it plays a crucial role in the nitrogen cycle, as well as being the most abundant element in air. Together, nitrogen and phosphorus support the aquatic ecosystem, providing food and habitat for the organisms that live there. The
Introduction Mammal inventories serve many purposes: they can help evaluate human impact on mammal activities, show diversity in a survey area of interest, allow for comparisons among different areas, and help layout distribution maps for species as well as individuals. A thorough knowledge of the presence as well as distribution of animals in a given area is particularly important when considering conservation strategies for a region. Methods commonly used to detect
How would the world react to a certain kind of animal dying out or going extinct? Would the world be better off without them or have a drastic change to the environment? Animals have an important role to the part of the life works. Many of the species produce things that are essential to the people live. In fact, one of the reasons the endangered species are depleting is because the
Survival of different species depends on their potential to adapt to their changing environment. However, it is not always possible for species to adapt to their changing surroundings which eventually leads to their extinction. To everyone’s dismay, in the past century, several animal and plant species have been disappearing at a very rapid rate. We, humans, are considered to be the cause of the biggest extinction on the earth. Due to
There are endangered species found all around the world, in every sort of habitat. Every day, many different creatures are affected, some even going into extinction! This is usually because of human interference. It is a topic of a great importance to us in our day, because these endangered species are important to our planet. Endangered species come in all different shapes and sizes and are a plant or an animal.