Concepts

Mutually beneficial herbivore-predator associations where sap-feeding insects provide honeydew food for ants in exchange for protection against predators

Indirect effects of predators on lower trophic levels mediated through changes in intermediate consumer behavior or abundance

Positive species interactions such as nurse plant effects by cushion-forming species that increase reproductive success for neighboring plants

Temporal alignment between consumer energy requirements and food source availability across trophic levels

Effects of human recreational activities on wildlife communities through habitat alteration, disturbance, and behavioral changes

Interactions involving three species or groups, such as soil microbes, plants, and pollinators

Distribution of plant growth and resources between aboveground (shoots) and belowground (roots) structures

Selective feeding behavior of herbivores that favors certain plant traits or genotypes over others

Nectar-secreting organs located on leaf laminae, petioles, rachis, bracts, stipules, pedicels, or fruit that attract arthropods

How male and female plants of dioecious species differ in their interactions with insects

The formation of predictive relationships between contingent stimuli in the environment

Experimental design testing multiple factors simultaneously in all combinations

Sugar composition of plant phloem sap which honeydew is derived from, potentially altered by temperature affecting ant recruitment or tending behavior

Grouping of individuals based on body shape rather than species-level identification due to field identification constraints

Method for quantifying the proportion of overall variance explained by different factors or pathways using R² calculations

Non-living environmental factors such as climate, light, and temperature that influence organism performance

The excretion of sugar-rich liquid waste by herbivorous hemipterans feeding on plant sap

Statistical phenomenon where predictor variables are correlated, potentially masking individual effects in regression analysis

The abundance or availability of resources in a given area

Relative number of small mammals detected through camera trap monitoring expressed as activity indices

The concept that higher trophic levels are more sensitive to environmental change due to their smaller population sizes and greater environmental demands

Harmonic mean of precision and recall used to evaluate classification model performance

Environmental gradient characterized by declining water availability, derived from temperature and precipitation variables

Chemical signals that organisms use to obtain information about their environment

The balance between costs and benefits that determines whether species interactions are mutualistic or antagonistic

The probability of detecting a species given that it is present at a site

Spatial sampling design measuring wildlife responses at increasing distances from disturbance sources

The hypothesis that species that are competitively dominant have reduced ability to discover new resources quickly

Predicts that dominant species may be more specialized on particular resources than subordinates, allowing subordinate species to coexist by better capitalizing on unused resources.

Species that define ecosystems and provide critical habitat structure, where big sagebrush is a foundation species in steppe ecosystems of western North America

The complete sequence of developmental stages from germination through survival, growth, flowering, and reproduction in sessile plants

Sampling methods that do not require capturing or handling animals, such as hair tube traps that collect hair samples

Proportion of flowering individuals that are primarily male-expressing

Behavioral patterns of wasps that parasitize other arthropods, particularly aphids

Sampling method using buried containers with killing solution to capture ground-dwelling invertebrates

Experimental technique to prevent predator access while maintaining other ecological interactions

Aphid colony growth rate calculated as ln(n1)-ln(n0)/t where n1 and n0 are final and initial colony sizes

When plants are found adjacent to one another with less than two finger-widths between them or when one plant surrounds another

When clustered plants experience facilitative interactions that cause leaves to be cooler relative to surrounding soils

The sharing of liquid food resources between nestmates through specialized anatomical and behavioral adaptations

Ecological interactions between hoofed mammals and aspen trees including herbivory effects on tree health and forest composition

Having the greatest foraging success relative to abundance in the environment