Ecology Section Bio 1B

Front 1

unitary organism

Back 1

develop from zygote to adult with determinant form

Front 2

modular organism

Back 2

grow by repeated interactions of its parts (modules) into an adult of indeterminate form

Front 3

genet

Back 3

genetic indvidual, all the biomass that derived from single embryo

Front 4

ramet

Back 4

subunit of genet that is physiologically viable as an autonomous fragment

Front 5

demography

Back 5

study of how the vital rate of indivuduals (birth, death, growth) affect stucture and dynamics of populations

Front 6

poupulation

Back 6

group of potentially interbreeding individuals (some species, co-occur in time and space)

Front 7

dispersion

Back 7

pattern of distribution of individuals in space (clumped, even, or random = every site has an equal probabliity of being occupied by an indivudual, indpenedent of locations of other individuals)

Front 8

interspecific interactions

Back 8

Effect of individuals (or populations) on other individuals (or populations) of different species

Front 9

exploitative

Back 9

two species compete for a resource that is limiting; in short supply relative to their needs (indirect)

Front 10

interference

Back 10

two species directly harm each other by toxic allelochemicals, injury, or wasting time, increasing rissk, etc. (direct)

Front 11

apparent

Back 11

two species decrease in each other's presence because they support the increased abundance or virgor of a common predator (indirect)

Front 12

community

Back 12

a group of species that co-occur in time and space

Front 13

system

Back 13

group of entities united by interaction or interdependece to form or act as an entire unit

Front 14

trophic level

Back 14

functional grouping organisms according to their primary food source

Front 15

disturbance

Back 15

a discrete event that frees resources and opens up habitat by killling or removing organisms