Beavers
Ecological isolation occurs when species live in the same territories but never meet. They occupy the same territory, but different habitats.
No two species can occupy the same ecological niche at the same time.
Why do autotrophs always occupy the lowest level of ecological pyramids?
population :D
Sympatric speciation refers to the formation of two or more descendant species from a single ancestral species all occupying the same geographic location. Often cited examples of sympatric speciation are found in insects that become dependent on different host plants in the same area.
Ecological isolation occurs when species live in the same territories but never meet. They occupy the same territory, but different habitats.
biogeography
If there are 2 species that have evolved from one specie, the they very well can occupy the same ecological niche, and since evolution take a long time, there is a possibility of a large distance gap between these two specie, thus creating ecological equivalence! If this still doesn't make sense look up the term "ecological equivalent" in the dictionary!
We call this a population.
No two species can occupy the same ecological niche at the same time.
Why do autotrophs always occupy the lowest level of ecological pyramids?
population :D
Members of a single species that occupy a particular area and are able to interbreed are a population. Today, there are 16,938 threatened species on the planet.
I do not believe that humans are considered to be on the ecological pyramid.
The number of organisms of one species that occupy an area is known as that area's population. It is often referred to as local population specific to the species and area.
No. Because the hawk and owl hunt similar prey but occupy different ecological niches. Yes. The hawks hunt in daylight, and are replaced by owls species at night, but there are owls that hunt in the same areas as the hawks, so they do occupy the same ecological niche.
A population is a group of individual of a single species that simulataneously occupy the same general area. Population may increase or decrease.