Tagged: prey

Food webs: Who eats who, and what does that tell us? - Waiology

Waiology Dec 02, 2014

By Elizabeth Graham Food webs are maps of “who eats who” within an ecosystem (Figure 1a). Each node, or point, in the web represents a species or group of organisms; nodes are connected by a link if there is a known feeding relationship between the two groups. Though they are built on simple predator-prey relationships, food webs integrate complex information … Read More

Cats can’t kill it, if it is not there - Politecol

- Wayne Linklater Dec 13, 2013

For cats to be a “beneficial urban predator” they must largely kill the exotic predators and competitors of native animals. Dr. John Flux believes his 17-year record of the prey one cat brought to him [1] proves that cats are good for native wildlife in cities. His belief featured prominently in the media to … Read More

Presence of native species, not evidence all is hunky-dory - Politecol

- Wayne Linklater Nov 26, 2013

Just because native species persist in our backyards despite being hunted by predators, like cats, it does not mean their populations are healthy. Our backyard can be a sink-hole for native species. Each killed is replaced by recolonisers who are themsleves be killed (photo source: inhabitat.com) Cats might be a “beneficial urban predator” according to Dr. John Flux. Read More

Dr. Flux’s cat misleads us - Politecol

- Wayne Linklater Nov 18, 2013

Our cats bring us only a fraction, less than half, of their prey and we are less likely to see the small, more palatable prey, like small reptiles and nestlings (Source: www.kittycat.co.za). Cats are a “beneficial urban predator” according to Dr. John Flux and his conclusion featured prominently in the media to have a … Read More