By Justina Ray, Kent H. Redford, Robert Steneck, Dr. Joel Berger PhD
Huge Carnivores and the Conservation of Biodiversity brings jointly greater than thirty top scientists and conservation practitioners to think about a key query in environmental conservation: Is the conservation of enormous carnivores in ecosystems that developed with their presence resembling the conservation of organic variety inside of these platforms? construction their discussions from empirical, long term info units, participants together with James A. Estes, David S. Maehr, Tim McClanahan, Andr?s J. Novaro, John Terborgh, and Rosie Woodroffe discover quite a few matters surrounding the hyperlink among predation and biodiversity: what's the facts for or opposed to the hyperlink? Is it improved in marine structures? What are the consequences for conservation concepts? huge Carnivores and the Conservation of Biodiversity is the 1st certain, broad-scale exam of the empirical proof in regards to the position of enormous carnivores in biodiversity conservation in either marine and terrestrial ecosystems. It contributes to a way more special and international knowing of whilst, the place, and no matter if retaining and restoring best predators will at once give a contribution to the conservation of biodiversity. each person curious about ecology, biodiversity, or huge carnivores will locate this quantity a special and thought-provoking research and synthesis.
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Extra info for Large Carnivores and the Conservation of Biodiversity
Many species—including large cats, marine mammals, sharks, wolves, grizzly bears (Ursus arctos)—today have a global appeal that can be harnessed as effective sym- Large Carnivorous Animals as Tools for Conserving Biodiversity 41 bols, especially in fundraising (Entwistle et al. 2000). They provide the “focus, rallying point and command centre” of conservation efforts promoted by many conservation organizations (Leader-Williams and Dublin 2000). The distinction between conservation symbols and other tools discussed here is not a clean one; in many situations, researchers and practitioners are drawn to these species for the same reasons as the general public.
2002): (1) biomaterials of canopyforming marine vegetation are more edible and nutritious than their terrestrial counterparts; (2) body size ratios between herbivores and plants are greater in aquatic systems; the largest marine herbivores swim and can graze canopies from the top down (Steneck and Dethier 1995); (3) herbivores consume three times more primary production in lentic than in terrestrial food webs (Cyr and Pace 1993); and (4) higher inherent per area and per mass production potential of 26 Setting the Stage benthic marine versus terrestrial ecosystems (Mann 1973; Wiebe et al.
Extinction rates accelerated after humans arrived on the scene, but declines in abundance continue today. If predators played important functional roles in the past, then theory suggests today’s community structure may be altered at all trophic levels. Thus many ecosystems that had been under strong top-down control may be bottom-up controlled today due to the extirpation of key predators. The ecosystem still functions, but it functions differently than it did in the past. An Ecological Context for the Role of Large Carnivores in Conserving Biodiversity 31 Humans have entered terrestrial and aquatic ecosystems as the ultimate apex predator.
Large Carnivores and the Conservation of Biodiversity by Justina Ray, Kent H. Redford, Robert Steneck, Dr. Joel Berger PhD