Group Formation Stabilizes Predator-Prey Dynamics  

Oleh:

Fryxell, John M. ; Mosser, Anna ; Sinclair, Anthony R.E. ; Packer, Craig

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: NATURE (keterangan: ada di Proquest) vol. 449 no. 7165 (Oct. 2007), page 1041.

Ketersediaan

Perpustakaan FK Nomor Panggil: N01.K.2007.09 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Theoretical ecology is largely founded on the principle of mass action, in which uncoodinated populations of predators and prey move in a random and well-mixed fashion across a featureless landscape. The conseptual core of this body of theory is the functional response, predicting the rate of prey consumption by individual predators as a function of predator and/or prey densities. This assumption is seriously violated in many ecosystems in which predators and/or prey from social groups. Here we develop a new set of group-dependent functional responses to consider the ecological implications sociality and apply the model to the Serengeti ecosystem. All of the prey species typically captured by Serengeti lions (Panthera leo) are gregarious,......

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