Lecture 21 Flashcards
population: a group of individuals of a single species
inhabiting a specific area
tasmania is home to a unique set of species, many of which are .., due to long periods of … and …
endemic; geographic; genetic isolation
primary threat to tasmanian devils is …, there has been no evidence of a reduction of … as the population declines
DFTD; DFTD prevalence
community: the group of species that … and … in a particular place and time
co-exist; interact
face mites: adapted to live in … and … of humans
pores; follicles
to understand organisms, their characteristics and traits, we must understand their …: … (non-living, physical) and … (living, other …)
environments; abiotic; biotic; species
community interactions: ... ... ... ... and ...
predation; competition; parasitism; herbivory; mutualism
community interactions are categorized accorded to the effects on each species’ …
population size
(competition)
intraspecific: … a species
interspecific: … or … species
expoitation: … of a shared …
interference: direct … prevents access to …
within; between; among; depletion; resourced; interaction; resources
(competition) intraspecific competition can limit: …
…-dependent growth, … growth
population growth; density; logistic
the growth of a population with limited resources will eventually slow to … growth as the population nears its … (population size that can be supported by the …)
zero; carrying capacity; environment
gause’s law: no two species may occupy the same … at the same time, relates to idea of
niche; competitive exclusion
if two competing species coexist in a stable environment, they do so as a result of …: …
niche differentiation; coexistence
… and … are possible outcomes of interspecific competition
competitive exclusion; coexistence
ecological niche: the fundamental … of a species in the …; defined by the … and … variables within which a given species can … and …
role; community; physical; environmental; survive; reproduce
