extinction Flashcards
WHAT IS EXTINCTION?
permanent loss of biodiversity
WHAT IS BIODIVERSITY?
variety of all living things
WHAT IS GENETIC DIVERSITY?
sum of the total genetic information contained in the genes of organisms
WHAT IS SPECIES DIVERSITY?
measure of the number of different species in a specific area
WHAT IS ECOSYSTEM DIVERSITY?
measure of the number of different kinds of ecosystems in an area
WHAT IS SPECIES RICHNESS?
number of different kind of species in a particular area
WHAT IS SPECIES ABUNDANCE?
number of individual members within a particular species
WHAT IS SPECIES EVENNESS?
description of the distribution of abundance across the species in a community
WHAT IS THE IMPORTANCE OF BIODIVERSITY IN ECOLOGICAL?
environment provides different ecological services and each species plays a specific role in the environment and depend on each other for survival
WHAT IS THE IMPORTANCE OF BIODIVERSITY IN ECONOMIC?
environment provides the basic necessities such as food raw materials shelter and clothing
WHAT IS THE IMPORTANCE OF BIODIVERSITY IN MORAL AND ETHICAL?
all forms of life deserve equal treatment and have the right to exist on the planet as much as what human beings deserve
WHAT IS MASS EXTINCTION?
any circumstance that results in the loss of a significant portion of Earth’s Iving species across a wide geographic area within a relatively short period of geologic time