Chapter 2: Animal Ecology Flashcards
The relation of the animal to its organic and inorganic environment is _____.
Ecology
An animal’s ___ comprises all conditions that directly affect its chances for survival and reproduction.
environment
The role of an organism, population, or species in an ecological community is its _____.
niche
What are the 2 types of niches?
Fundamental and Realized
What is the differences between fundamental and realized niches?
Fundamental is the POTENTIAL roles an organism could perform. Realized are the roles ACTUALLY performed.
What is a deme?
Geographically and genetically cohesive populations that is are separated from other populations
___ is the study of a population’s properties and factors that influence them
Demography
The proportion of a population that persists from one point in their life to another is called _____.
survivorship
What are the two types of forms of reproduction seen in species?
Semelparity and Iteroparity
What is semelparity?
Organism only reproduces once in its lifetime
What is iteroparity?
Organism is able to have more than one reproductive cycle in lifetime
What is the outcome of competition in communities? Who benefits?
negative, negative (-,-)
Neither benefit
What is the outcome of predation in a community? Who benefits?
positive, negative (+,-)
Predator benefits
What is the outcome of parasitism in a community? Who benefits?
negative, positive (-,+)
Prey benefits
What is commensalism?
Interaction where one species benefits, while the other is unaffected