Categories of species that feed on no other species in the food web are referred to as ____.
Ecologists usually consider a subset of species when they define and study communities. When both hummingbirds and bumble bees feed on nectar in flowers they can be grouped as a/an _______.
Holoparasitic plants are nonphotosynthetic whereas hemiparsitic plants are photosynthesic.
In the Lotka-Voerra competition equations, a and ß refers to?
per capita growth rates
The Shannon index is the one most commonly used quantitative species diversity indices which considers both number of species and evenness.