alkaloid sequestration
The uptake and concentration of toxic alkaloid compounds by parasitic plants from their hosts
alkaloid toxicity
Toxic effects of alkaloid compounds on herbivorous insects and livestock
allele frequency change
Geometric mean of the ratio of allele frequency between consecutive generations (pt/pt-1)
allelic richness
Number of alleles present in a population, standardized for sample size
allocation patterns
allocation schedule
allometric growth
Growth pattern where fish tend to become relatively more slender as they grow longer, indicated by exponent b in weight-length relationship
allometric relationship
The existence of a relationship between body size and syrinx size, which determines the range of fundamental frequencies that an organism can produce
alpha ejection correction
Correction factor accounting for loss of helium due to alpha particles being ejected from mineral grains during radioactive decay
altriciality
Developmental condition where nestlings lack down, sufficient mobility, and ability to feed themselves, characterizing species like Mountain White-crowned sparrows
amino acid requirements
Essential and nonessential amino acid needs for bee development, particularly focusing on requirements outlined for honeybees
amphibian conservation
Conservation strategies for protecting declining amphibian populations globally
anaerobic protection
Protection of organic carbon upon burial under anaerobic conditions through kinetic and thermodynamic constraints on microbial activity that can limit depolymerization and respiration of organic compo...
anaerobic protection
analytical facilities
anesthesia
Artificially produced unconsciousness used during procedures to block sensations of pain
animal personality
Consistent individual differences in behaviour across time and contexts, concept known as animal personality, behavioural types, temperament or coping styles
animal personality
anisotropy of magnetic susceptibility
The directional dependence of magnetic susceptibility in rocks that results from depositional, diagenetic, syn- and post-sedimentary processes affecting magnetic grains
annual ET
annual species life cycle
Life history where only present year queens overwinter while all males, workers, and old queens die by first snow cover
ant recruitment
Process by which ants discover and begin tending aphid colonies
antagonism
When multiple cues indicate decreased likelihood of an event, resulting in diminished response to composite stimulus
antagonistic coevolution
Evolutionary interaction where male traits evolve to overcome female resistance to mating
antagonistic pleiotropy
Alternate alleles are favoured in distinct habitats, and polymorphism is maintained by selection
anthesis
anti-parasitism strategy
Evolved adaptations that reduce vulnerability to parasites through various mechanisms including resource specialization
apical dominance
Plant growth pattern where terminal bud suppresses lateral growth, which can be disrupted by herbivory
approximate Bayesian computation
A computational method for model fitting that contrasts the influence of different mechanisms by simulating data under different parameter sets
arboreal behavior
Use of trees by terrestrial mammals for foraging, resting, or other activities
area of occupancy
The area within a species' extent of occurrence that is actually occupied by the species, calculated using grid-based methods
arkose
art-science collaboration
Interdisciplinary partnerships between artists and scientists that create new works and approaches that would not be possible without the collaboration
ash content
Percentage of inorganic material remaining after high-temperature combustion
aspect effects
Influence of slope orientation on temperature due to differential solar heating throughout the day
aspen succession
Process by which aspen acts as climax forest in the Upper East River Valley and expands into adjacent habitats through vegetative reproduction
assisted migration
The introduction of a species to previously inhabited areas or to new suitable regions
associational defenses
Protection gained by an organism from living in association with another species
atmospheric acidification
atmospheric correction
Processing procedure to remove atmospheric effects from hyperspectral radiance data to estimate surface reflectance
atmospheric profiling
Vertical measurement of atmospheric properties including temperature, humidity, wind, and aerosol concentrations
atmospheric radiation measurement
DOE's user facility providing comprehensive atmospheric measurements across diverse climatic regions
atmospheric soot emissions
Ten percent of all annual atmospheric soot emissions in Northern Hemisphere are from boreal wildfires
autonomous selfing
avalanche disturbance
Natural disturbance event that can affect small mammal populations by crushing animals, destroying burrows, eliminating food sources, or preventing emergence after hibernation
avalanche runout distance
The horizontal distance an avalanche travels from the starting zone to where it stops
avian malaria
axial filling
back-trajectory analysis
Computational method to trace the path of air masses backwards in time to determine source regions
