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Habitat Terminology Quiz 1
Habitat terminology
52
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Undergraduate 4
01/28/2014

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Term
abundance
Definition
the number of individuals
Term
accuracy
Definition
the nearness of a measurement to the actual value of the variable being measured; not synonymous with precision
Term
assemblage
Definition
a group of species under study
Term
census
Definition
a complete enumeration of an entity
Term
community
Definition
the co-occurrence of individuals of several species during a specified time and space that are interacting and show some degree of inter-dependencies
Term
complexity
Definition
relative comparisons of grains separated by distance
Term
density
Definition
the number of individual per unit area
Term
distribution
Definition
the spread or scatter of an entity within its range
Term
ecosystem
Definition
the specific functions and interactions under study or potentially influencing the study (within an explicitly defined area
Term
extent
Definition
the area over which observations are made and the duration of those observations
Term
grain
Definition
the spatial and temporal resolution of observations, the smallest resolvable unit of study
Term
guild
Definition
a group of species that exploit the same class of environmental resources in a similar way
Term
habitat (Morrison and Hall)
Definition
the physical space within which the animal lives, and the abiotic and biotic entities
Term
habitat availability (Hall 97)
Definition
the accessibility and procurability of physical and biological components in a habitat
Term
habitat avoidance (Morrison and Hall)
Definition
an oxymoron that should not be used; wherever an animal occurs defines its habitat.
Term
microhabitat (mesohabitat)(Morrison and Hall)
Definition
relative terms that refer to the grain size of the area over which habitat is being measured
Term
habitat preference (Morrison and Hall)
Definition
used to describe the relative use of different locations (habitats) by an individual or species
Term
habitat quality (Morrison and Hall)
Definition
the ability of an area to provide conditions appropriate for individual and population persistance
Term
habitat selection (Hall 1997)
Definition
a hierarchical process involving a series of innate and learned (imprinting-Harrison) behavioral decisions made by an animal about what habitat it would use at different scales (spatial and temporal) of the environment. Quantified as use compared to availibility.
Term
habitat use (Hall 1997)
Definition
the way an animal uses (or "consumes", in a generic sense) a collection of physical and biological entities in a habitat
Term
home range
Definition
the area traversed by an animal during its activities during a specified period of time
Term
landscape
Definition
a spatially heterogeneous area used to describe features (stand type, soil, site etc.) of interest
Term
landscape features
Definition
widespread or characteristic features within a landscape
Term
level
Definition
the level of organization revealed by observation at the scale under study
Term
metapopulation
Definition
strictly, a system of populations of a given species in a landscape linked by balanced rates of extinction and colonization. More loosely, the term is used for groups of populations of species, some of which go extinct while others are established, bu the entire system may not be in equilibrium
Term
model
Definition
any formal representation of the real world. A model may be conceptual, diagrammatic, mathematical, or computational.
Term
model calibration
Definition
the estimation of model parameters from data
Term
model parameterization
Definition
the process of specifying a model structure
Term
model validation
Definition
comparison of a model's predictions to some user-chosen standard to assess if the model is suitable for its intended purpose.
Term
model verification
Definition
the demonstration that the model is formally correct
Term
niche
Definition
the strength and frequency of interactions between individuals and entities (resources, other animals) in its habitat
Term
patch
Definition
a recognizable area on the surface of the earth that contrasts with adjacent areas and has definable boundaries
Term
population
Definition
a collection of individuals
Term
precision
Definition
the closeness to each other of repeated measurements of the some quantity
Term
range
Definition
the limits within which an entity operates or can be found
Term
resolution
Definition
the smallest spatial scale at which we portray discontinuities in biotic and abiotic factors in map form
Term
resource
Definition
any biotic or abiotic factor directly used by an organism
Term
resource abundance
Definition
the absolute amount (or size or volume) of an item in an explicitly defined area
Term
resource availability
Definition
a measure of the amount of a resource actually available to the animal (amount exploitable)
Term
resource preference
Definition
the liklehood that a resource will be used if offered on an equal basis with others
Term
resource selection
Definition
the process by which an animal chooses an resource
Term
resource use
Definition
a measure of the amount of resource taken directly (consumed, removed etc.) from an explicitly defined area
Term
scale
Definition
the resolution at which patterns are measured, percieved, or represented. Scale can be broken into several components, including grain and extent
Term
scale of observation
Definition
the spatial and temporal scales at which observations are made.
Term
sensitivity analysis
Definition
a process in which model parameters or other factors are varied in a controlled fashion
Term
sink population
Definition
in a landscape, a population or site that attracts colonists, while not supplying migrants to other sites or populations
Term
site
Definition
an area of uniform physical and biological properties and management status
Term
source population
Definition
in a landscape, a population or a site that supplies colonists to other patches
Term
study area
Definition
an arbitrary spatial extent chosen by the investigator within which to conduct a survey
Term
territory
Definition
the spatial area defended (actively or passively) by an animal or group of animals
Term
viability
Definition
strictly, the ability to live or grow. In conservation biology, the probability of survival of a population for an extended period of time
Term
habitat (Harrison 2010)
Definition
the combination of all abiotic and biotic factors which determine the distribution and density of a self-sustaining population of organisms within a specified area, over a specified interval, and at a specified spatial-scale.
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