27 July 2016 | Wildlife Conservation Society News Release
New York – A team of conservation biologists is calling for a worldwide strategy to prevent the unthinkable: the extinction of the world’s largest mammal species.
In a public declaration published in today’s edition of the journal BioScience, a group of more than 40 conservation scientists and other experts are calling for a coordinated global plan to prevent the world’s “megafauna” from sliding into oblivion.
Among the threats cited by the group as drivers of this mass extinction are illegal hunting, deforestation and habitat loss, the expansion of agriculture and livestock into wildlife areas, and the growth of human populations.
“The more I look at the trends facing the world’s largest terrestrial mammals, the more concerned I am we could lose these animals just as science is discovering how important they are to ecosystems and to the services they provide for people,” said Dr. William Ripple, professor of ecology at Oregon State University and lead author of the study.
Ripple worked with other authors on the study to examine population trends of many species, including many of the most well-known, charismatic species such as elephants, rhinos, gorillas, and big cats that are now threatened with extinction.
Approximately 59 percent of the world’s biggest mammalian carnivore species—including the tiger— and 60 percent of the largest herbivores are now listed on the International Union for Conservation of Nature’s Red List of Threatened Species as threatened with extinction.
“Perhaps the biggest threat for many species is direct hunting driven by a demand for meat, pets, and body parts for traditional medicines and ornaments,” Dr. Elizabeth Bennett, WCS’s Vice President of Species Conservation and a co-author on the study. “Only a massive commitment from the international community will stop this rampant destruction of so many animal populations.”
All of these large species play critical roles in their ecosystems. Species at risk include elephants, that provide a suite of vital ecosystem services as ecological engineers, dispersing seeds and nutrients across vast areas. “The loss of elephants in the forests of Central Africa is increasingly damaging the function of the region’s most important ecosystems,” said WCS Conservation Scientist Dr. Fiona Maisels, one of the study’s co-authors. “We’re only beginning to understand how vital these keystone species are to the health of rainforests and other species that inhabit them.”
Human–wildlife conflict is a serious concurrent threat for many species. “With simultaneous loss of wildlife habitat and expansion of human populations and agriculture, negative interactions between people and wildlife are bound to rise,” said WCS India Scientist Dr. Varun R. Goswami, also a co-author on the study. “For wide-ranging megafauna like elephants and tigers, we need landscape-scale conservation strategies, taking into account the increasing interface between wildlife and people.”
Some megafauna face the threat of obscurity. The loss of elephants worldwide to poachers in pursuit of ivory is well-known and is the focus of extensive efforts to shut down this trade, but the study authors point out that many species are at risk from many similar threats but are so poorly known that effective conservation efforts to save them are difficult.
The paper includes a 13-part declaration that highlights the need to acknowledge the threatened status of many large mammals and the vital ecological roles they play. The declaration also cites the importance of integrating the efforts of scientists and funding agencies in developing countries where many species occur; the need for a new global framework to conserve megafauna; and the moral obligation of saving the world’s biggest mammal species.
The study titled “Saving the World’s Terrestrial Megafauna” appears in the latest edition of BioScience. The authors are: William J. Ripple of Oregon State University; Guillaume Chapron of the Swedish University of Agricultural Sciences; José Vicente López-Bao of Oviedo University; Sarah M. Durant of the Zoological Society of London and the Wildlife Conservation Society; David W. Macdonald of the University of Oxford; Peter A. Lindsey of Panthera and the University of Pretoria; Elizabeth L. Bennett of the Wildlife Conservation Society; Robert L Beschta of Oregon State University; Jeremy T. Bruskotter of Ohio State University; Ahimsa Campos-Arceiz of the University of Nottingham; Richard T. Corlett of the Chinese Academy of Sciences; Chris T. Darimont of the University of Victoria; Amy J. Dickman of the University of Oxford; Rodolfo Dirzo of Stanford University; Holly T. Dublin of the Wildlife Conservation Society and the IUCN Species Survival Commission; James A Estes of the University of California; Kristoffer T. Everatt of the Nelson Mandela Metropolitan University; Mauro Galetti of the Universidade Estadual Paulista; Varun R. Goswami of the Wildlife Conservation Society; Matt W. Hayward of Nelson Mandela Metropolitan University; Simon Hedges of the Wildlife Conservation Society; Michael Hoffman of the IUCN Species Survival Commission; Luke T.B. Hunter of Panthera; Graham I.H. Kerley of Nelson Mandela Metropolitan University; Mike Letnic of University of New South Wales; Taal Levi of Oregon State University; Fiona Maisels of the Wildlife Conservation Society and Stirling University; John C. Morrison of the World Wildlife Fund; Michael Paul Nelson of Oregon State University; Thomas M. Newsome of Oregon State University; Luke Painter of Oregon State University; Robert M. Pringle of Princeton University; Christopher J. Sandom of University of Sussex; John Terborgh of Duke University; Adrian Treves of University of Wisconsin-Madison; Blaire Van Valkenburgh of University of California; John A. Vucetich of Michigan Technological University; Aaron J. Wirsing of University of Washington; Arian D. Wallach of University of Technology-Sydney; Christopher Wolf of Oregon State University; Rosie Woodroffe of the Zoological Society of London; Hillary Young of the University of California; and Li Zhang of Beijing Normal University.
WCS (Wildlife Conservation Society) MISSION: WCS saves wildlife and wild places worldwide through science, conservation action, education, and inspiring people to value nature. To achieve our mission, WCS, based at the Bronx Zoo, harnesses the power of its Global Conservation Program in nearly 60 nations and in all the world’s oceans and its five wildlife parks in New York City, visited by 4 million people annually. WCS combines its expertise in the field, zoos, and aquarium to achieve its conservation mission. Visit: newsroom.wcs.org Follow: @WCSNewsroom. For more information: 347-840-1242.
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