The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist

@article{Studd2020ThePC,
  title={The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist},
  author={Emily K. Studd and Rachael E. Derbyshire and Allyson K. Menzies and John F. Simms and Murray M. Humphries and Dennis L Murray and Stan Boutin},
  journal={Methods in Ecology and Evolution},
  year={2020},
  volume={12},
  pages={1277 - 1287}
}
Characterizing variation in predator behaviour and, specifically, quantifying kill rates is fundamental for parameterizing predator–prey and food web models. Yet, current methods for recording kill rates of free‐ranging predators, particularly those that consume small‐bodied (<2 kg) prey, present a number of associated challenges. In this paper, we deployed custom‐adapted acoustic recorders and tri‐axial accelerometers on free‐ranging Canada lynx Lynx canadensis to assess the capacity of… 

Digging into the behaviour of an active hunting predator: arctic fox prey caching events revealed by accelerometry

Background Biologging now allows detailed recording of animal movement, thus informing behavioural ecology in ways unthinkable just a few years ago. In particular, combining GPS and accelerometry

Large trees and forest heterogeneity facilitate prey capture by California Spotted Owls

ABSTRACT Predators are among the most threatened animal groups globally, with prey declines contributing to their endangerment. However, assessments of the habitat conditions that influence the

Functional Responses Shape Node and Network Level Properties of a Simplified Boreal Food Web

Ecological communities are fundamentally connected through a network of trophic interactions that are often complex and difficult to model. Substantial variation exists in the nature and magnitude of

Hiding in plain sight: risk mitigation by a cryptic carnivore foraging at the urban edge

As natural habitat is progressively transformed, effective wildlife conservation relies on understanding the phenotypic traits that allow select species to persist outside of protected areas. Through

What's In That Scat: An Analysis of Canada Lynx Diet and Distribution in the North Cascades Ecosystem

  • 2022

Fire as a driver and mediator of predator–prey interactions

Both fire and predators have strong influences on the population dynamics and behaviour of animals, and the effects of predators may either be strengthened or weakened by fire. However, knowledge of

References

SHOWING 1-10 OF 61 REFERENCES

Use of Acceleration and Acoustics to Classify Behavior, Generate Time Budgets, and Evaluate Responses to Moonlight in Free-Ranging Snowshoe Hares

TLDR
Snowshoe hare behavior was classified into four categories using low frequency accelerometry, with an overall model accuracy of 88%, and acoustic recordings to three categories (silence, hopping, and chewing) with an accuracy of 94%.

Identification of carnivore kill sites is improved by verified accelerometer data

TLDR
Collar-mounted accelerometers can improve identification of predation sites for some carnivores as compared to use of GPS and landscape informed covariates alone and increase the understanding of predator–prey relations.

The use of on-animal acoustical recording devices for studying animal behavior

TLDR
It is demonstrated that acoustical monitoring is a viable and accurate method for characterizing individual time budgets and behaviors of ungulates, and may provide new insight into the ways external forces affect wildlife behavior.

Spying on small wildlife sounds using affordable collar-mounted miniature microphones: an innovative method to record individual daylong vocalisations in chipmunks

TLDR
It is shown here how to continuously track the daily natural emissions of individuals in the wild using an operational tiny audio recorder that can easily be fitted as an on-board acoustic data-logger on small free-ranging animals.

Listening to Lions: Animal-Borne Acoustic Sensors Improve Bio-logger Calibration and Behaviour Classification Performance

TLDR
On-animal audio recordings are able to provide a valuable source of ground-truth for calibrating bio-loggers while also offering additional predictive features for increasing the accuracy of behaviour classification.

Suitability of GPS telemetry for studying the predation of Eurasian lynx on small- and medium-sized prey animals in the Northwestern Swiss Alps

TLDR
GLC analysis is a promising tool for exploring predation on new-born ungulates, mesopredators, and other smaller prey animals weighing between 2 and 10 kg, however, substantial field effort is mandatory to sufficiently detect prey remains in short-lasting GLCs.

Less is more: On‐board lossy compression of accelerometer data increases biologging capacity

TLDR
It is argued that this type of lossy data compression can be a well‐considered choice in study situations where limitations in energy and storage space of the device pose a problem.

Do GPS clusters really work? carnivore diet from scat analysis and GPS telemetry methods

Global Positioning System (GPS) data collected using radiocollars have allowed researchers to identify sites where predators have killed prey, but this method has yet to be compared with scat

Building a mechanistic understanding of predation with GPS-based movement data

  • E. MerrillH. Sand J. Frair
  • Environmental Science
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2010
TLDR
It is shown how statistical models can be used to investigate the influence of factors such as animal characteristics and landscape features on either handling time or killing efficiency and problems remain in incorporating the behavioural complexity derived from GPS movement paths into functional response models, particularly in multi-prey systems.
...