Concepts

All (117)Explore Concept Graph

117 concepts

phenomenon

pollen limitation

Reduced seed set resulting from insufficient pollen receipt, particularly affecting females when hermaphrodite density and frequency increases

population ecology45 papers
phenomenon

intraspecific variation

Raw material on which ecological and evolutionary processes act - variation of traits within species that can mediate responses to biotic and abiotic factors

population ecology37 papers
phenomenon

stand density effects

How tree growth and biomass allocation patterns change based on local neighborhood tree density and competition

population ecology26 papers
phenomenon

nesting preferences

The selective choices made by organisms regarding where to construct nests, influenced by environmental factors that affect offspring survival and reproductive success.

population ecology17 papers
phenomenon

facultative sociality

Social systems where individuals have flexibility in their social behaviors and group membership rather than being obligately social

population ecology14 papers
phenomenon

philopatry

tendency of an organism to stay in or habitually return to a particular area

population ecology14 papers
phenomenon

vocal individuality

The degree to which individuals can be discriminated from one another based on their vocalizations, quantified using information theory

population ecology12 papers
phenomenon

antisocial behavior

Directed aggression toward conspecifics, increasing spatial distancing from or decreasing huddling with unfamiliar conspecifics

population ecology11 papers
phenomenon

polygamous mating system

Mating system where males compete with one another over access to matelines consisting of groups of related females

population ecology10 papers
phenomenon

population stage structure

The distribution of individuals across different size or age classes within a population

population ecology10 papers
phenomenon

cline

A gradual change in a trait across an environmental gradient, where width is expected to be proportional to dispersal distance divided by square root of difference in selection between ends of the cli...

population ecology9 papers
phenomenon

territoriality

Territorial behavior including alarm and warning calls to protect midden from squirrels and other mammals, with territories ranging from 0.5 to 1 hectares defended through vocalizations and chasing

population ecology9 papers
phenomenon

matrilineal society

Social organization where related females remain together and males typically disperse

population ecology8 papers
phenomenon

plasticity

population ecology8 papers
phenomenon

population extermination

Complete or near-complete elimination of local populations due to environmental catastrophe

population ecology8 papers
phenomenon

sudden aspen decline

Rapid, synchronous mortality of aspen across large areas characterized by gradual sudden aspen decline associated with recent drought and temperature stress

population ecology8 papers
phenomenon

tree mortality

population ecology8 papers
phenomenon

extinctions

population ecology6 papers
phenomenon

kinship

population ecology6 papers
phenomenon

population genomic divergence

Genetic differentiation between populations across the genome, measured by allele frequency differences and population genetic statistics like FST

population ecology6 papers
phenomenon

reproductive status effects

Differential behavioral responses based on whether female marmots are reproductive or non-reproductive

population ecology6 papers
phenomenon

age at first reproduction

The age at which females first reproduce, an important component of vertebrate life histories with effects on individual fitness and population dynamics

population ecology5 papers
phenomenon

maternal care

population ecology5 papers
phenomenon

population decline

Reduction in population growth rates, size, or occurrence across species ranges

population ecology5 papers
phenomenon

larval food stress

Nutritional limitation during larval development that affects adult phenotype

population ecology4 papers
phenomenon

bloom formation

population ecology3 papers
phenomenon

defence polymorphism

Genetic variation in defensive traits maintained within populations

population ecology3 papers
phenomenon

group size effects

Changes in social behavior and group dynamics that result from variation in the number of individuals in a social group

population ecology3 papers
phenomenon

heterozygote deficiency

Lower than expected frequency of heterozygous genotypes in a population

population ecology3 papers
phenomenon

litter sex composition

The proportion of male versus female offspring in a litter affecting prenatal hormone exposure

population ecology3 papers
phenomenon

male-biased dispersal

Pattern where male mammals tend to travel farther than females in exploratory excursions and disperse more than females

population ecology3 papers
phenomenon

seasonal reproductive cycles

Precisely-timed seasonal cycles of reproduction fundamental to animal populations adapting to northern and montane environments

population ecology3 papers
phenomenon

vehicular collision mortality

Mortality from roadkill events where animals are struck and killed by vehicles

population ecology3 papers
phenomenon

Range shifts

population ecology2 papers
phenomenon

abundance-occupancy relationships

population ecology2 papers
phenomenon

diel periodicity

Daily patterns in organism behavior, with some mayfly species showing increased drift activity at night to minimize exposure to visual predators

population ecology2 papers
phenomenon

group living

Social organization where individuals aggregate in groups, potentially providing antipredator benefits through collective vigilance and dilution effects

population ecology2 papers
phenomenon

haemoparasites

Blood parasites including Haematazoa subclass with four main genera: Leucocytozoon, Haemoproteus, Plasmodium, and Trypanosoma, vectored by dipterans

population ecology2 papers
phenomenon

individual heterogeneity

High diversity of life-history traits among individuals within populations, potentially masking life-history trade-offs

population ecology2 papers
phenomenon

iteroparous

Reproductive strategy where organisms reproduce multiple times throughout their lifetime

population ecology2 papers
phenomenon

litter relocation behavior

Behavior in which a female moves her litter to a new location

population ecology2 papers
phenomenon

local endemism

Species that are restricted to small geographic areas and found nowhere else

population ecology2 papers
phenomenon

monocarpic perennial life history

Plants that live for multiple years but flower only once before dying

population ecology2 papers
phenomenon

multiple paternity

Litters where offspring are sired by more than one male

population ecology2 papers
phenomenon

nesting aggregation

Multiple individuals of solitary nesting species choosing to nest in close proximity to one another

population ecology2 papers
phenomenon

parasitic infection

population ecology2 papers
phenomenon

population dialect

Geographic variation in chemical profiles that may reflect phylogeographic drift in odor profiles between populations

population ecology2 papers
phenomenon

reproductive skew

Unequal distribution of reproduction among group members, with some individuals having much higher reproductive success than others

population ecology2 papers
phenomenon

seed dormancy

A state where viable seeds do not germinate immediately even under favorable conditions

population ecology2 papers
phenomenon

small mammal activity patterns

Temporal and spatial patterns of small mammal behavior and presence

population ecology2 papers