inertial instability
infanticide
The killing of infants by conspecifics other than the parents
infiltration capacity
The maximum rate at which water can enter soil under specified conditions
information entropy
Probabilistic approach to measure spatial and temporal variability using Shannon entropy framework
innovation success
successful manipulation of puzzle box to obtain food reward by opening either lid or door
insect biomass
Total dry weight of insects captured, used as proxy for abundance and population size
instantaneous mortality rate
A measure of per-capita mortality rate calculated as the natural logarithm of survival over time
instream flow protection
instrumental learning
Learning motor routines that mediate nectar extraction through robbing holes
insulin/insulin-like growth factor signaling
A conserved nutrient-sensing signaling pathway that regulates cellular metabolism, survival, proliferation, and growth as well as reproduction
integrated pest management
An integrated approach which considers multiple strategies and tactics to manage pests efficiently while incorporating economic, social and ecological components
integrating natural gradients
integrative taxonomy
Approach that combines multiple criteria and character sets to discover and delimit species
integumentary tapetum
The innermost layer of the integument adjacent to the embryo sac in ovules, characterized by hypertrophied cells in some species
inter-cohort cannibalism
Cannibalism occurring between different age cohorts, where older individuals consume younger individuals of the same species
inter-seasonal storage
Water storage transfer between seasons, particularly winter snow storage contributing to summer flows
interactive functional complementarity
interception rates
intercomparison
interferometric synthetic aperture radar (InSAR)
Radar interferometry technique using phase differences between satellite acquisitions to detect ground surface deformation
interflow
Lateral movement of snowmelt downgradient through soil zone toward topographic convergent zones to form streams
internal consistency
internal production
internal state
Properties of an organism's internal status including disease status, age, sex, body condition, and hormone levels that influence metabolic demands
interspecific interactions
Behavioral interactions between marmots and other species sharing their habitat
intertegular distance
Distance measurement used as proxy for body size in bees
intertonguing relationship
intraspecific signals
invasion success
invasive species hypothesis
The hypothesis that recent D. geminata blooms are caused by introductions of the species to new geographic areas
inverse storage effect
More young water released from storage during wet periods than during dry periods
invisible fraction
Individuals that die before trait expression, creating missing data that can bias selection estimates
iridescent coloration
Structural coloration that changes appearance based on viewing angle due to optical interference in plumage or other surfaces
iron hypothesis
The proposal that ferric-ferrous iron redox shifts sequester additional phosphorus needed to stimulate nuisance D. geminata blooms in oligotrophic streams
island biogeography
Pikas as island species restricted to talus habitat and high alpine mountain tops
isolated decomposition
Decomposition of litter isolated from tree canopy and root network influences to study selective pressures from litter chemistry alone
isothermal snowpack
Snowpack condition when snow temperature is uniform at 0°C and entering net seasonal melting cycle
jurisdiction boundary
k-component
A maximal subset of nodes in which all nodes are mutually reachable by at least k node-independent paths using only nodes in the subset.
keriotheca
kinematic wave equation
kinetic constraints
kinetic fractionation
krummholz
Stunted, mat-like growth form of trees at treeline characterized by prostrate branches due to harsh environmental conditions
kurtosis
lability
labor force participation rate
lagged correlation
Correlation between canopy growth in one year and stem growth in the following year rather than the same year
lambda
landscape contrast
Visual contrast between puddling sites and surrounding areas measured using polarized light photography and gray scale analysis
