Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...

Biological Clocks and Seasonal Responses

Biological Clocks and Seasonal Responses

The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...

Predator-Prey Interactions

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Understanding mammal avoidance of human settlements.

The Journal of animal ecology·2026

Same author

Co-development of a genetic care pathway for ALS: real-world perspectives from the North of England.

Orphanet journal of rare diseases·2026

Same author

Metabarcoding reveals striking dietary variation in a reintroduced mesocarnivore.

Journal of mammalogy·2026

Same author

Detection of Echinococcus multilocularis in coyotes in Washington State, USA highlights need for increased wildlife surveillance.

PLoS neglected tropical diseases·2026

Same author

Direct single dose mass delabelling of antibiotic allergy in pediatrics.

Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology·2026

Same author

Large-scale experimental assessment of coyote behavior across urban and rural landscapes.

Scientific reports·2025

Search research articles

Related Experiment Video

Updated: Aug 23, 2025

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Published on: August 8, 2017

Permanent daylight saving time would reduce deer-vehicle collisions.

Calum X Cunningham¹, Tristan A Nuñez¹, Yasmine Hentati¹

¹School of Environmental and Forest Sciences, College of the Environment, University of Washington, Seattle, WA 98195-2100, USA.

Current Biology : CB

|November 3, 2022

Summary

Changing clock time impacts deer-vehicle collisions. Shifting to year-round daylight saving time could prevent thousands of deer and human deaths annually by reducing dark-hour traffic.

Keywords:

animal-vehicle collisions anthropogenic effects daylight saving time deer deer-vehicle collisions human-wildlife conflict road ecology temporal activity wildlife-vehicle collisions

More Related Videos

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

Published on: February 2, 2022

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

Related Experiment Videos

Last Updated: Aug 23, 2025

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid

Published on: August 8, 2017

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

Published on: February 2, 2022

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

Area of Science:

Ecology and Conservation Biology
Transportation Science
Chronobiology

Background:

Wildlife-vehicle collisions are a major cause of wildlife mortality globally.
Seasonal clock time shifts alter human activity patterns, potentially affecting human-wildlife conflict.

Purpose of the Study:

To investigate the impact of daylight saving time transitions on deer-vehicle collisions.
To quantify the effect of traffic timing relative to sunset on collision risk.

Main Methods:

Analysis of over one million deer-vehicle collisions and 96 million hourly traffic observations in the US.
Utilizing the biannual clock time shift as a natural experiment.

Main Results:

Deer-vehicle collisions are 14 times more frequent in the two hours after sunset compared to before.
The autumn shift to standard time increases collisions by 16% due to increased post-sunset traffic.
Year-round daylight saving time could prevent significant numbers of deer and human fatalities and injuries.

Conclusions:

Reducing post-sunset traffic through year-round daylight saving time offers substantial conservation benefits.
Permanent standard time is predicted to increase collision frequency and associated costs.
Temporal strategies targeting wildlife-vehicle collision risk are effective and economically beneficial.