Activity Patterns and Habitat Utilization in Mammalian Carnivores

Mammalian carnivores display a remarkable diversity of activity schedules and habitat‐use strategies that reflect adaptations to physiological constraints, prey dynamics and environmental pressures. Activity rhythms are commonly classified as diurnal, nocturnal, crepuscular or cathemeral, yet recent work reveals fluidity between these categories under varying climatic, seasonal and anthropogenic influences. Habitat utilisation spans a spectrum from strict territoriality to extensive movements across heterogeneous landscapes, with prey availability, interspecific competition and human disturbance driving spatial and temporal niche partitioning. Advances in remote sensing, camera trapping, radiotelemetry and molecular techniques have refined our understanding of fine‐scale activity curves and habitat occupancy, enabling quantification of overlap among sympatric species and identification of critical habitats. Insights into diel and seasonal shifts in predator–prey interactions inform ecosystem management and conservation planning, guiding the design of protected areas, corridors and mitigation strategies for human–carnivore coexistence. Recognising the interplay between temporal and spatial niches is essential for forecasting responses to climate change, habitat fragmentation and emerging anthropogenic pressures on carnivore guilds worldwide.

Research from Nature Portfolio

Integrative ecological modelling and biogeographic analyses of the tiger‐cat species complex have revealed multiple hyperdimensional niches within what was formerly treated as a single taxon. By combining species distribution models with detailed morphological and genetic data, researchers delineated three distinct habitat specialists—savanna, cloud‐forest and Atlantic‐forest tiger‐cats—each exhibiting unique spatial distributions and spotting patterns. Alarming contractions of historical ranges by over 50 percent underscore urgent conservation priorities for these cryptic felids.

Methodological comparisons of activity‐curve estimation have refined best practices for quantifying carnivore activity rhythms. By evaluating camera trapping against radiotelemetry across species of varying size and diel modes, investigators demonstrated high correspondence in activity profiles once adequate sample sizes are achieved. They recommend a minimum of 100 independent detections to ensure precision in overlap estimates, while highlighting systematic differences in peak magnitude that must be accounted for in temporal niche studies.

Activity Patterns and Habitat Utilization in Mammalian Carnivores publication trend

The graph below shows the total number of articles in activity patterns and habitat utilization in mammalian carnivores across all publications each year (not limited to Nature Index journals).

Technical terms

Diurnal: Active predominantly during daylight hours.

Nocturnal: Active predominantly during nighttime hours.

Crepuscular: Active during twilight periods at dawn and dusk.

Cathemeral: Exhibiting irregular activity throughout both day and night.

Niche partitioning: Division of resources and activities among species to reduce competition.

Occupancy modelling: Statistical estimation of species presence and habitat use from detection data.

Activity curve: Temporal profile representing timing and intensity of an animal’s activity.

Camera trapping: Use of motion- or heat-activated cameras to record wildlife presence and behaviour.

References

1. Ecological modeling, biogeography, and phenotypic analyses setting the tiger cats’ hyperdimensional niches reveal a new species. Scientific Reports (2024).
2. Estimating wildlife activity curves: comparison of methods and sample size. Scientific Reports (2018).
3. Cathemerality: a key temporal niche. Biological Reviews (2023).
4. Different coexistence patterns between apex carnivores and mesocarnivores based on temporal, spatial, and dietary niche partitioning analysis in Qilian Mountain National Park, China.. eLife (2024).
5. Prey availability and temporal partitioning modulate felid coexistence in Neotropical forests. PLOS ONE (2019).