The control of risk hypothesis: Reactive vs. proactive antipredator responses and stress‐mediated vs. food‐mediated costs of response
S Creel - Ecology letters, 2018 - Wiley Online Library
Inducible defences against predators evolve because they reduce the rate of direct
predation, but this benefit is offset by the cost (if any) of defence. If antipredator responses …
predation, but this benefit is offset by the cost (if any) of defence. If antipredator responses …
Global shark attack hotspots: Identifying underlying factors behind increased unprovoked shark bite incidence
BK Chapman, D McPhee - Ocean & Coastal Management, 2016 - Elsevier
Unprovoked shark bite remains a rare, unlikely occurrence; however, shark bite incidence is
increasing world-wide. In an effort to understand why shark bite incidence is increasing, we …
increasing world-wide. In an effort to understand why shark bite incidence is increasing, we …
Fear at the top: killer whale predation drives white shark absence at South Africa's largest aggregation site
Risk-induced fear effects exerted by top predators are pervasive in terrestrial and marine
systems, with lasting impacts on ecosystem structure and function. The loss of top predators …
systems, with lasting impacts on ecosystem structure and function. The loss of top predators …
Sex‐specific and individual preferences for hunting strategies in white sharks
Fine‐scale predator movements may be driven by many factors including sex, habitat and
distribution of resources. There may also be individual preferences for certain movement …
distribution of resources. There may also be individual preferences for certain movement …
Behavioural drivers of the ecological roles and importance of marine mammals
Marine mammals feed at a variety of trophic levels, occur from freshwater to open-ocean
ecosystems and are found across virtually all latitudes. Due to their high historical, and …
ecosystems and are found across virtually all latitudes. Due to their high historical, and …
Dramatic increase in sea otter mortality from white sharks in California
MT Tinker, BB Hatfield, MD Harris… - Marine Mammal …, 2016 - Wiley Online Library
Although southern sea otters (Enhydra lutris nereis) are not considered prey for white sharks
(Carcharodon carcharias), sharks do nonetheless bite sea otters. We analyzed spatial and …
(Carcharodon carcharias), sharks do nonetheless bite sea otters. We analyzed spatial and …
Disappearance of white sharks leads to the novel emergence of an allopatric apex predator, the sevengill shark
N Hammerschlag, L Williams, M Fallows, C Fallows - Scientific reports, 2019 - nature.com
Despite global declines of apex predatory sharks, evidence for ecosystem consequences
remains limited and debated. This is likely a result of both the logistical difficulties of …
remains limited and debated. This is likely a result of both the logistical difficulties of …
Loss of an apex predator in the wild induces physiological and behavioural changes in prey
N Hammerschlag, C Fallows, M Meÿer… - Biology …, 2022 - royalsocietypublishing.org
Predators can impact prey via predation or risk effects, which can initiate trophic cascades.
Given widespread population declines of apex predators, understanding and predicting the …
Given widespread population declines of apex predators, understanding and predicting the …
An integrated mark-recapture and genetic approach to estimate the population size of white sharks in South Africa
The loss of apex marine predators has been reported to have a cascade of detrimental
effects on marine ecosystems; however, the general lack of empirical data can severely limit …
effects on marine ecosystems; however, the general lack of empirical data can severely limit …
Blood plasma levels of heavy metals and trace elements in white sharks (Carcharodon carcharias) and potential health consequences
L Merly, L Lange, M Meÿer, AM Hewitt, P Koen… - Marine pollution …, 2019 - Elsevier
Heavy metals may adversely affect health in marine organisms. As top predators, sharks
may be especially vulnerable to exposure over long lifespans. Here we evaluate plasma …
may be especially vulnerable to exposure over long lifespans. Here we evaluate plasma …