cort-fitness hypothesis
Hypothesis predicting that baseline glucocorticoid levels should be negatively associated with long-term survival and/or reproductive success
developmental time constraints
Limited time available for larval development before habitat drying selects for aggressive behavior
dominance-impoverishment rule
The rule predicts that species diversity should decrease linearly as the number or abundance of dominant species increases.
double benefit hypothesis
The hypothesis that caddisflies gain nutritional benefits both from consuming conditioned detritus and from consuming algae that grows from nutrients released during detritus processing
dust aversion hypothesis
hypothesis that animals will avoid feeding in areas with high dust deposition
earlier-larger hypothesis
Hypothesis that increased food availability should lead to earlier emergence of larger adults
enemy release hypothesis
Exotic species benefit from the loss of a subset of their natural enemies during immigration
enemy release hypothesis
enemy-free space hypothesis
habitat saturation
Condition where all suitable habitat patches are occupied, forcing individuals to remain in natal territories
hibernation-ageing hypothesis
The hypothesis that ageing is suspended during hibernation, whereby species engaging in torpor periodically suspend ageing and thus live longer than predicted based on body size alone
incipient fasting
The hypothesis that observed declines in excretion rates over time are due to cessation of feeding rather than other factors
invasive species hypothesis
The hypothesis that recent D. geminata blooms are caused by introductions of the species to new geographic areas
iron hypothesis
The proposal that ferric-ferrous iron redox shifts sequester additional phosphorus needed to stimulate nuisance D. geminata blooms in oligotrophic streams
large male advantage
The hypothesis that larger male body size confers fitness advantages in mating success, commonly observed in insects where large size increases competitive ability
main effects hypothesis
Hypothesis that social relationships provide direct emotional and behavioral aid that encourages healthy lifestyle changes
misdirected parental care hypothesis
Individuals kill unrelated young to avoid wasting energy on parental care that does not benefit their own offspring
mother-knows-best hypothesis
The hypothesis that parent-offspring conflicts can arise when host plants that maximize larval performance differ from plants that increase adult longevity and egg production
mother-knows-best hypothesis
mountain passes are higher in the tropics
niche packing theory
Predicts functional and phylogenetic overdispersion in communities where closely related species will compete more strongly than distantly related species, leading to traits being more widely disperse...
optimal cluster size hypothesis
The hypothesis that there is an optimal egg cluster size that maximizes fitness by balancing benefits and costs of aggregation
pace-of-life hypothesis
Hypothesis proposing that individuals vary in life-history strategies covarying with suites of morphological, physiological and behavioural characteristics, where fast-growing individuals should be mo...
parallel trends assumption
persistence of protected eggs
Relationships between egg and juvenile densities are strongest for species where eggs are protected from predation, parasitism, or physical factors that cause mortality or by female or male behavior t...
personality-dependent dispersal
The tendency to disperse is associated with boldness, sociability, and/or aggressiveness behavioral traits
physiological-efficiency hypothesis
relationship strength vs quantity
The concept that quality of social relationships may be more important than number of relationships for stress reduction
reproductive stage vulnerability
Different stages of reproduction (gestation, lactation, post-reproduction) may predispose females to different levels of roadkill risk due to varying energy demands and foraging behavior
safe haven hypothesis
Hypothesis that human activity displaces predators creating areas with reduced predation risk for prey species
seasonality hypothesis
Early flowering plant species will display greater resistance to frost than species that flower later
seasonality hypothesis
Janzen's hypothesis that tropical mountain ranges act as more effective physiological barriers to dispersal than temperate ones due to reduced seasonal temperature variation in the tropics
social fence hypothesis
high density population reduces dispersal because immigration of new individuals will increase negative encounters
social subordination hypothesis
Hypothesis that dominant individuals can force subordinates to leave natal territory through aggression or control over resources
state-dependent safety
state-dependent safety hypothesis
Hypothesis stating that differences in body condition, size or energy reserves cause and maintain variation in personality, where individuals in better condition take more risks and those in poorer co...
stigma lobe-ovule relationship
The hypothesis that there is a 1:1 anatomical relationship between stigma lobe and ovule in Geranium richardsonii
surface area hypothesis
The hypothesis that habitats with larger surface area provide more niches for arthropods, resulting in greater species richness
taxon invariance
The principle that macroecological patterns should be independent of the taxonomic choices used to define assemblages
terminal allocation
Changes in trait allocation that occur specifically in the last year or period before death
thermal mismatch hypothesis
Theory that host susceptibility to pathogens increases as environmental conditions become less favorable for the host
windows of opportunity
Periods during which plant defenses are relatively reduced, allowing specialized herbivores to exploit host plants behaviorally
