Population Properties
What is the measure of individuals per unit of available or habitable area? _________ density
ecological
Is accredited for first identifying the phenomenon of natural selection based primarily on their observations of bird speciation while voyaging on the Beagle.
Charles Darwin
These organisms produce a large batch of eggs but most of them die within a short period of time, however those that survive survive to a relatively old age, their population can be general defined as ________ ___ _________
Type III Survivorship
The measure used to describe the free energy of water at any point along the soil-plant-atmosphere continuum is called its ______________ potential.
Water
Organisms that save energy by not producing eggs early in life then become females
Sequential Hermaphrodites
A group of local subpopulations linked through immigration and emigration is called a
Metapopulation
Selection pressure on subpopulations resulting in different allele frequencies via migration is an example of _____ _____
Gene flow
A population that is increasing in size has an intrinsic rate of population growth (r) that is greater than ___
>0
What strategy type has a restricted to narrow range of environmental conditions; reduced physical efficiency when external conditions are outside their ideal range.
Individuals reproduce numerous times throughout their lifetime
Iteroparous
What are the three ecologically important age classes that are important for understanding and predicting patterns of population growth.
pre-reproductive, reproductive, post-reproductive
A founder effect event that occurs by random chance is an example of ______ _______
Genetic drift
Is the name of a table that only records births.
Fecundity Table
An organism whose internal body temperature varies significantly, often matching the temperature of its external environment.
Poikilotherm
Are young are born developed; more energy put into gestational development than after birth care
Precocial
_______ _______, describe a pattern where individuals within a population are not spread evenly or randomly across their habitat, but rather are concentrated in discrete groups
clumped/patchy distributions
_______ _______ is the term used to
describe environmentally induced changes
to physiological and/or morphological traits
Phenotypic plasticity
_________ processes are random, unpredictable events that influence the characteristics and trajectory of an ecological system, particularly a population.
Stochastic
The enzyme that catalyzes carbon fixation during photosynthesis, and can also interact with oxygen, is called
These plants colonize disturbed sites (early successional species)
Ruderals
Sponges and corals require a different interpretation of population when measuring population dynamics because they are ________ _________
Modular Organisms
Phenotypic plasticity in a white-tailed deer changing gradually in size from large in the north to small in the south, is referred to as a ________
Cline
The maximum difference between births and deaths a population can achieve under ideal environmental conditions.
Intrinsic Growth Rate
To conserve heat in a cold environment and to cool vital parts of the body under heat stress, some animals have a __________ _____ ________ system.
countercurrent heat exchange
Are young that born helpless; more energy put into care after birth than gestational development.
Altricial