Upgrade to remove ads
Terms in this set (37)
High and low
________________ levels of disturbance
_______________ levels of disturbance
Discrete, punctuated killing, displacement, or damaging of one or more individuals that directly or indirectly creates an opportunity for new individuals to be established.
Study of the interactions between species in communities on many spatial & temporal scales, including the distribution, structure, abundance, demography, and interactions between coexisting populations.
The number of different species in a community.
The number and relative abundance of species in a biological community.
Relative abundance of each species.
A species with low biomass but large effects on community structure; a species whose influence on a community is disproportionate to its biomass.
Keystone species ________ the likelihood of competitive exclusion.
The true population that is occurring
What do the confidence intervals of the means of two samples tell us?
A system of interlocking and interdependent food chains.
Temperature and moisture
________________ usually limit primary production in a terrestrial environment.
The open ocean tends to be nutrient-_______.
Influences of physical and chemical factors of an ecosystem
Influences of consumers on ecosystems
Fixation of energy by autotrophs in an ecosystem
the movement and exchange of organic and inorganic matter back into the production of living matter
Tests for significant differences in populations
Little temp variation , 2000-4000 mm rainfall annually; mycorrhizae gather nutrients; Harbor stable foods and medicines; warm and wet year round;soil low inorganic matter; soil nutrient poor and acidic; 10 degree lat; example: malaysia
Tropical dry forest
richer in nutrients; shares many species w/ TRF; extensive clearing for agriculture; dry season last 6-7 months; migratory birds: 10-25 degree; example: Mexico
Wildfires; soils have low water permeability; increasing pressure to produce livestock; fire is important in maintaining; migratory animals 10- 20 degree; example: Australia
soil low in organic matter; no plant; animals abundance is low; soil is high in salt; 30 degrees north and south. LARGEST
Mediterranean Woodland and Shrubland
fragile soil; evergreens; fire-resistant plants; high biological richness; high human population densities; all continents except Antarctica
650-3000mm rainfall; fertile soils; long growing season; 40 and 50 degrees lat
11% of earth; thin and acidic soil; low in fertility; evergreens and conifers; nutrients in floor; migratory birds; only NA; Example: Canada
low decomposition rates; permafrost; Alaska
Latitude and location
What determines geographic distribution of terrestrial biomes?
Leads to change in phenotypes by favoring extreme phenotype over other phenotypes in the population
Creates bimodal distribution by favoring two or more extreme phenotypes
Acts to impede changes in an environment by acting against the extremes and favoring the average
individuals of one sex consistently choose mates among members of the opposite sex based on a particular trait
individuals of one sex compete among themselves for a mate
What type of survivorship curve has the majority of mortality occurring among older individuals?
What type of survivorship curve has a constant rate of survival throughout the year?
What type of survivorship curve has a high mortality among the young, followed by high survivorship?
growth of a population when generations don't overlap; population growth in annual pulses
continuous growth in an unlimited environment; appropriate for populations with overlapping generations; as population size increases, rate of population increase lasts longer
You might also like...
ch 52 ecology vocabulary
APES Chapter 6 Review
biology 102 exam 3
Other sets by this creator
Exam 2 Review
Exam 1 Review
Eco Lecture Final
Other Quizlet sets
Business Law Quiz 4
Ch. 5 skeletal system
2011 District Junior R3 R4
Macroeconomics Module 11