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Full-Text Articles in Life Sciences

Habitat Segregation Between Brown Bears And Gray Wolves In A Human-Dominated Landscape, Cyril Milleret, Andrés Ordiz, Guillaume Chapron, Harry Peter Andreassen, Jonas Kindberg, Johan Månsson, Aimee Tallian, Petter Wabakken, Camilla Wikenros, Barbara Zimmermann, Jon E. Swenson, Håkan Sand Nov 2018

Habitat Segregation Between Brown Bears And Gray Wolves In A Human-Dominated Landscape, Cyril Milleret, Andrés Ordiz, Guillaume Chapron, Harry Peter Andreassen, Jonas Kindberg, Johan Månsson, Aimee Tallian, Petter Wabakken, Camilla Wikenros, Barbara Zimmermann, Jon E. Swenson, Håkan Sand

Ecology Center Publications

Identifying how sympatric species belonging to the same guild coexist is a major question of community ecology and conservation. Habitat segregation between two species might help reduce the effects of interspecific competition and apex predators are of special interest in this context, because their interactions can have consequences for lower trophic levels. However, habitat segregation between sympatric large carnivores has seldom been studied. Based on monitoring of 53 brown bears (Ursus arctos) and seven sympatric adult gray wolves (Canis lupus) equipped with GPS collars in Sweden, we analyzed the degree of interspecific segregation in habitat selection …


Competition Among Three Forensically Important Blow Fly Species (Diptera: Calliphoridae): Phormia Regina, Lucilia Sericata, And Chrysomya Rufifacies, Amber Macinnis Jul 2018

Competition Among Three Forensically Important Blow Fly Species (Diptera: Calliphoridae): Phormia Regina, Lucilia Sericata, And Chrysomya Rufifacies, Amber Macinnis

School of Natural Resources: Dissertations, Theses, and Student Research

The aim of this study was to use interspecific competition between three species of blow flies (Diptera: Calliphoridae) to determine if interspecific competition might explain the successional patterns. A replacement series model was used for three species of blowflies: Phormia regina, Lucilia sericata, and Chrysomya rufifacies. A total of 20 maggots were used for each treatment and the proportion of each species was varied. The graphic evidence and the relative crowding coefficient of P. regina versus L. sericata indicated a significant competitive advantage of P. regina. One of the life history traits of L. sericata is that it oviposits on …