J
James A. Estes
Researcher at University of California, Santa Cruz
Publications - 199
Citations - 33812
James A. Estes is an academic researcher from University of California, Santa Cruz. The author has contributed to research in topics: Otter & Population. The author has an hindex of 70, co-authored 194 publications receiving 30528 citations. Previous affiliations of James A. Estes include Brigham Young University & United States Geological Survey.
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Journal ArticleDOI
Historical overfishing and the recent collapse of coastal ecosystems.
Jeremy B. C. Jackson,Jeremy B. C. Jackson,Michael Xavier Kirby,Wolfgang H Berger,Karen A. Bjorndal,Louis W. Botsford,Bruce J. Bourque,Roger Bradbury,Richard G. Cooke,Jon M. Erlandson,James A. Estes,Terry P. Hughes,Susan M. Kidwell,Carina B. Lange,Hunter S. Lenihan,John M. Pandolfi,Charles H. Peterson,Robert S. Steneck,Mia J. Tegner,Robert R. Warner +19 more
TL;DR: Paleoecological, archaeological, and historical data show that time lags of decades to centuries occurred between the onset of overfishing and consequent changes in ecological communities, because unfished species of similar trophic level assumed the ecological roles of over-fished species until they too were overfished or died of epidemic diseases related to overcrowding as mentioned in this paper.
Journal ArticleDOI
Trophic Downgrading of Planet Earth
James A. Estes,John Terborgh,Justin S. Brashares,Mary E. Power,Joel Berger,William J. Bond,Stephen R. Carpenter,Timothy E. Essington,Robert D. Holt,Jeremy B. C. Jackson,Robert J. Marquis,Lauri Oksanen,Tarja Oksanen,Robert T. Paine,Ellen K. Pikitch,William J. Ripple,Stuart A. Sandin,Marten Scheffer,Thomas W. Schoener,Jonathan B. Shurin,Anthony R. E. Sinclair,Michael E. Soulé,Risto Virtanen,David A. Wardle +23 more
TL;DR: This empirical work supports long-standing theory about the role of top-down forcing in ecosystems but also highlights the unanticipated impacts of trophic cascades on processes as diverse as the dynamics of disease, wildfire, carbon sequestration, invasive species, and biogeochemical cycles.
Journal ArticleDOI
Status and ecological effects of the world's largest carnivores.
William J. Ripple,James A. Estes,Robert L. Beschta,Christopher C. Wilmers,Euan G. Ritchie,Mark Hebblewhite,Joel Berger,Bodil Elmhagen,Mike Letnic,Michael Paul Nelson,Oswald J. Schmitz,Douglas W. Smith,Arian D. Wallach,Aaron J. Wirsing +13 more
TL;DR: The status, threats, and ecological importance of the 31 largest mammalian carnivores globally are reviewed and a Global Large Carnivore Initiative is proposed to coordinate local, national, and international research, conservation, and policy.
Journal ArticleDOI
Challenges in the Quest for Keystones
Mary E. Power,David Tilman,James A. Estes,Bruce A. Menge,William J. Bond,L. Scott Mills,Gretchen C. Daily,Juan Carlos Castilla,Jane Lubchenco,Robert T. Paine +9 more
TL;DR: This list of scientists and lecturers from the United States and Canada who have contributed to the scientific literature over the past 25 years has been compiled.
Journal ArticleDOI
Kelp forest ecosystems: biodiversity, stability, resilience and future
Robert S. Steneck,Michael H. Graham,Bruce J. Bourque,Debbie Corbett,Jon M. Erlandson,James A. Estes,Mia J. Tegner +6 more
TL;DR: The conditions in which kelp forests develop globally and where, why and at what rate they become deforested are reviewed and overfishing appears to be the greatest manageable threat to kelp forest ecosystems over the 2025 time horizon.