KILLER APPETITES: ASSESSING THE ROLE OF PREDATORS IN ECOLOGICAL COMMUNITIES

By T. Williams, J. Estes, D. Doak, A. Springer. 2004

320 citations recorded by the source corpus.

Subfields: Ecology, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/aec502b120eefb54fd956ff4c9b36b90a22408a7

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Citations in the corpus

Using stable isotope biogeochemistry to study marine mammal ecology (2010, background): “It is unlikely that SIA of killer whales could detect a switch from a pinniped diet to one that included but was not entirely based on sea otters, as might have occurred 1980s and 1990s (Williams et al. 2004).”
GLOBAL MARINE BIODIVERSITY TRENDS (2006, background): “The decimation of the great whales in the northeast Pacific by post-World War II industrial whaling may have caused their natural predators, killer whales (Orcinus orca), to begin feeding successively on seals, sea lions, and finally on sea otters (145, 146).”
KILLER WHALES AND MARINE MAMMAL TRENDS IN THE NORTH PACIFIC—A RE-EXAMINATION OF EVIDENCE FOR SEQUENTIAL MEGAFAUNA COLLAPSE AND THE PREY-SWITCHING HYPOTHESIS (2007, background): “…face of it, estimates of killer whale energetic requirements relative to biomass in the four declining populations concerned (Springer et al. 2003, Williams et al. 2004) present a plausible argument that killer whales could have caused population declines, particularly for sea otters (Estes et…”
Cascading top-down effects of changing oceanic predator abundances. (2009, background): “Here, good knowledge of species' natural histories and diets is critical (Dayton 2003); bioenergetics and demographic models can also play a role in evaluating the plausibility of hypothesized trophic interactions (Williams et al. 2004).”
The sequential megafaunal collapse hypothesis: Testing with existing data (2006, unknown): “The data that exist on diets and blood chemistries indicate that the nutritional challenges faced by sea lions in the 1980s may have continued for another decade (Zenteno-Savin et al., 1997; Sinclair and Zeppelin, 2002; Merrick et al., 1997; Winship and Trites, 2003).”
The effects of puma prey selection and specialization on less abundant prey in Patagonia (2013, background): “Further, they calculated that if just 4.4% of the estimated orca population surrounding the Aleutian archipelago (170 individuals) specialized on sea otters, then orcas could drive the entire Aleutian Islands population of sea otters to extinction in 3–4 months (Williams et al. 2004).”
Quantifying the sensitivity of Arctic marine mammals to climate-induced habitat change. (2008, background): “Killer whales were the likely cause of a severe reduction in sea otters (Enhydra lutris) in the Aleutian Islands (Estes et al. 1998), and energy calculations show that they are capable of having a large predatory impact on marine mammal prey (Williams et al. 2004).”
Estimating abundance of killer whales in the nearshore waters of the Gulf of Alaska and Aleutian Islands using line-transect sampling (2007, methodology): “The number of transient-type killer whales used by Williams et al. (2004) is coincidentally similar to this study’s estimate of 251 whales for nearshore waters from the Kenai Peninsula to the central Aleutian Islands.”
Whale killers: Prevalence and ecological implications of killer whale predation on humpback whale calves off Western Australia (2015, background): “…Pacific, killer whales targeted and serially depleted populations of other, increasingly less-profitable species of marine mammals—a trophic cascade that they referred to as the “sequential megafaunal collapse” hypothesis (SMC; Springer et al. 2003, 2008; Williams et al. 2004, Estes et al. 2009).”
Swimming speed, respiration rate, and estimated cost of transport in adult killer whales (2009, background): “…whale predation has been implicated in changes in the dynamics of marine mammal populations in the northeast Pacific (e.g., Springer et al. 2003, Williams et al. 2004), although the role of killer whales in the collapse of marine mammal populations is controversial (e.g., DeMaster et al. 2006).”
Strongly Interacting Species: Conservation Policy, Management, and Ethics (2005, background): “Interaction strength has been modeled on the basis of demographic and energetic parameters ( Williams et al. 2004 ), even where data are limited.”
Cooperative hunting behavior, prey selectivity and prey handling by pack ice killer whales (Orcinus orca), type B, in Antarctic Peninsula waters (2012, background): “…al. 2007, Wade et al. 2007, Barbraud and Cotté 2008, Wade et al. 2009), and the only consensus that has emerged to date is that too little is known about killer whale feeding habits to gauge the degree to which they may be structuring marine communities (Williams et al. 2004, Ainley et al. 2010).”
Apparent Resource Partitioning and Trophic Structure of Large-Bodied Marine Predators in a Relatively Pristine Seagrass Ecosystem (2013, background): “Large-bodied marine predators, especially sharks and odontocete cetaceans (toothed whales), can play important roles in coastal marine communities through both consumptive and non-consumptive effects on their prey (e.g. Williams et al. 2004, Heit haus et al. 2008, 2010, Wirsing et al. 2008).”
Whales, Whaling, and Ocean Ecosystems (2007, methodology): “The resulting increase in predation then initiated a sequential decline in populations of harbor seals (Phoca vitulina), northern fur seals (Callhorinus ursinus), Steller sea lions (Eumetopias jubata), and sea otters (Enhydra lutris) in the area (Estes et al. 1998; Springer et al. 2003; Williams et ”
Predicting ecological consequences of marine top predator declines. (2008, methodology): “Using this framework, the effects of predation could be fully quantified based on the diets, metabolic rates and abundances of predators and data on prey population dynamics [ 18 ].”
Estimated field metabolic rates and prey requirements of resident killer whales (2011, methodology): “…51–61 kcal/kg/d) and female (FMRs: 46–55 kcal/kg/d, DPERs: 54–65 kcal/kg/d) killer whales from the present study are similar to those reported previously for other adult killer whales (Kriete 1995, Baird and Dill 1996, Osborne 1999, Williams 1999, Williams et al. 2004, Williams and Noren 2009).”
Ecosystem models show combined effects of fishing, predation, competition, and ocean productivity on Steller sea lions (Eumetopias jubatus) in Alaska (2006, background): “The third hypothesis is that the large-scale fisheries in the GOA modified the ecosystem structure and function to the detriment of sea lions (Alverson 1992; Hansen 1996; Trites and Donnelly Can.”