Designing an optimal connected nature reserve

Optimal Selection of a Connected Reserve Network

Spatial considerations are important in conservation reserve design. A particularly important spatial requirement is the connectivity of selected sites. Direct connections between reserve sites increase the likelihood of species persistence by allowing dispersal and colonization of other areas within the network without species having to leave the reserve. The conventional set-covering and maxi...

Sustainability of an Urban Forest: Bukit Timah Nature Reserve, Singapore

The pandas' habitat at Wolong Nature Reserve.

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Designing effective reserve networks for nonequilibrium metacommunities.

The proliferation of efficient fishing practices has promoted the depletion of commercial stocks around the world and caused significant collateral damage to marine habitats. Recent empirical studies have shown that marine reserves can play an important role in reversing these effects. Equilibrium metapopulation models predict that networks of marine reserves can provide similar benefits so lon...

Revisiting Connected Dominating Sets: An Optimal Local Algorithm?

In this paper we consider the classical Connected Dominating Set (CDS) problem. Twenty years ago, Guha and Khuller developed two algorithms for this problem a centralized greedy approach with an approximation guarantee ofH(∆)+2, and a local greedy approach with an approximation guarantee of 2(H(∆) + 1) (where H() is the harmonic function, and ∆ is the maximum degree in the graph). A local greed...