Safe Passage: Exploring predator-prey dynamics in wildlife corridors

April Martinig studied how predator and prey species interact inside wildlife corridors and joined Defender Radio to share her insights!

Wildlife corridors are a great idea: they connect habitats and ecosystems, allowing animals of all types to safely get across roads. As over 20,000 animals are killed, 570 motorists injured and $700,000 spent for clean up of animal-vehicle collisions in BC according to, corridors are also a wise investment.

They come in many shapes and sizes, but generally are under or above ground passages that allow for safe passage where humans travelling at high-speeds represent a risk.

Questions about the efficacy of these corridors are being answered with ongoing research; but one that jumped out at me was the question of how a wildlife corridor impacts predator-prey relationships. There’s a logic to the concern: if a predator figures out that their prey are routinely using a narrow, easy-to-ambush tunnel, they may be able to outwit and negatively impact prey populations.

Of course, the best way to find an answer is to ask a question: and that’s what April Martinig did.

Martinig, a PhD candidate at University of Alberta, was the lead author on a study published in the journal Scientific Reports, titled ‘Temporal clustering of prey in wildlife passages provides no evidence of a prey-trap.’ This study adds to the growing list of benefits of wildlife corridors around the world. To explain why wildlife corridors are great, the lengthy process of reviewing tens of thousands of images from trail cameras, and what insights about predators, prey and their relationships she learned, April Martinig joined Defender Radio.


Share your FAVOURITE episode of Defender Radio anywhere on social media; send us a screen grab of the share along with your contact info; one listener will be selected to win a gaiter face mask from The Fur-Bearers! Email your screen grab and info to or to any of our social networking channels!

This episode is sponsored by! A family-owned and operated business based in Toronto, AnimalStone handmakes gorgeous charms of animals – and gives back a portion of proceeds to non-profits working to protect those animals! Even better, the metals used are ethically sourced in Canada and often come from recycled materials. Listeners of Defender Radio can get 10% off their order by using promo code DEFENDERRADIO at Learn more about this great company and their beautiful jewellery at

To listen to this episode click the ‘play’ button below, download the MP3, visit us on Apple PodcastsSpotifyYouTubeGoogle Play MusicStitcheriHeartRadio or at TuneIn. Get the RSS feed here. Make sure you follow @DefenderRadio on TwitterFacebook, and Instagram, too! 

Listen on Google Play Music
Listen on Google Play Music
Listen on Stitcher
Listen on TuneIn
Listen via RSS feed
Listen via RSS feed
Related Links:

Help Make A Difference

Join The Fur-Bearers today and help us protect fur-bearing animals in the wild and confinement. To become a monthly donor (for as little as $10/month – the cost of two lattes) please click here and help us save lives today. Your donation is tax-deductible.


Latest Posts

Defender Radio

Listen To The Latest
  • Listen To The Latest

About Us

Established in 1953, The Fur-Bearers is a charitable, non-partisan organization whose goals are to end the commercial fur trade and promote solutions for wildlife coexistence in communities. Your donation is tax-deductible. Charitable registration number: 130006125RR0002

1% For The Planet Partner

Pin It on Pinterest

Scroll to Top