Search Results - "Heithaus, Michael"
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Dangerous prey and daring predators: a review
Published in Biological reviews of the Cambridge Philosophical Society (01-08-2013)“…ABSTRACT How foragers balance risks during foraging is a central focus of optimal foraging studies. While diverse theoretical and empirical work has revealed…”
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Patterns and ecosystem consequences of shark declines in the ocean
Published in Ecology letters (01-08-2010)“…Ecology Letters (2010) 13: 1055–1071 Whereas many land predators disappeared before their ecological roles were studied, the decline of marine apex predators…”
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Buried in the sand: Uncovering the ecological roles and importance of rays
Published in Fish and fisheries (Oxford, England) (01-01-2021)“…Rays (superorder Batoidea) are the most diverse group of elasmobranchs, and many are threatened with extinction. However, there remain areas where research on…”
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Individual variation in ontogenetic niche shifts in habitat use and movement patterns of a large estuarine predator (Carcharhinus leucas)
Published in Oecologia (01-06-2015)“…Ontogenetic niche shifts are common among animals, yet most studies only investigate niche shifts at the population level, which may overlook considerable…”
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Multi-tissue stable isotope analysis and acoustic telemetry reveal seasonal variability in the trophic interactions of juvenile bull sharks in a coastal estuary
Published in The Journal of animal ecology (01-01-2014)“…1. Understanding how natural and anthropogenic drivers affect extant food webs is critical to predicting the impacts of climate change and habitat alterations…”
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Contrasting patterns of individual specialization and trophic coupling in two marine apex predators
Published in The Journal of animal ecology (01-01-2011)“…1. Apex predators are often assumed to be dietary generalists and, by feeding on prey from multiple basal nutrient sources, serve to couple discrete food webs…”
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The context dependence of non‐consumptive predator effects
Published in Ecology letters (01-01-2021)“…Non‐consumptive predator effects (NCEs) are now widely recognised for their capacity to shape ecosystem structure and function. Yet, forecasting the…”
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Extreme temperatures, foundation species, and abrupt ecosystem change: an example from an iconic seagrass ecosystem
Published in Global change biology (01-04-2015)“…Extreme climatic events can trigger abrupt and often lasting change in ecosystems via the reduction or elimination of foundation (i.e., habitat‐forming)…”
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Too hot to handle: Unprecedented seagrass death driven by marine heatwave in a World Heritage Area
Published in Global change biology (01-06-2020)“…The increased occurrence of extreme climate events, such as marine heatwaves (MHWs), has resulted in substantial ecological impacts worldwide. To date, metrics…”
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Predicting ecological consequences of marine top predator declines
Published in Trends in ecology & evolution (Amsterdam) (01-04-2008)“…Recent studies document unprecedented declines in marine top predators that can initiate trophic cascades. Predicting the wider ecological consequences of…”
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Key Questions in Marine Megafauna Movement Ecology
Published in Trends in ecology & evolution (Amsterdam) (01-06-2016)“…It is a golden age for animal movement studies and so an opportune time to assess priorities for future work. We assembled 40 experts to identify key questions…”
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Using unmanned aerial vehicles (UAVs) to investigate shark and ray densities in a shallow coral lagoon
Published in Marine ecology. Progress series (Halstenbek) (24-11-2016)“…Unmanned aerial vehicles (UAVs) are being increasingly used in studies of marine fauna. Here, we tested the use of a UAV (DJI Phantom II®) to assess fine-scale…”
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Effect of body length, trophic position and habitat use on mercury concentrations of sharks from contrasted ecosystems in the southwestern Indian Ocean
Published in Environmental research (01-02-2019)“…The non-essential metal mercury (Hg) can have deleterious effects on health of organisms, and tends to bioaccumulate with age in long-lived organisms and to…”
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Predators help protect carbon stocks in blue carbon ecosystems
Published in Nature climate change (01-12-2015)“…This Perspective considers the influence of marine predators on carbon cycling in salt marshes, seagrass meadows, and mangroves, and the potential role that…”
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Microhabitat selection by marine mesoconsumers in a thermally heterogeneous habitat: behavioral thermoregulation or avoiding predation risk?
Published in PloS one (12-04-2013)“…Habitat selection decisions by consumers has the potential to shape ecosystems. Understanding the factors that influence habitat selection is therefore…”
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Does variation in movement tactics and trophic interactions among American alligators create habitat linkages?
Published in The Journal of animal ecology (01-07-2011)“…1. Highly mobile top predators are hypothesized to spatially and/or temporally link disparate habitats through the combination of their movement and feeding…”
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Patterns of top‐down control in a seagrass ecosystem: could a roving apex predator induce a behaviour‐mediated trophic cascade?
Published in The Journal of animal ecology (01-11-2013)“…The loss of large‐bodied herbivores and/or top predators has been associated with large‐scale changes in ecosystems around the world, but there remain…”
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Dynamic energy landscapes of predators and the implications for modifying prey risk
Published in Functional ecology (01-02-2024)“…Landscapes of fear describe a spatial representation of an animal's perceived risk of predation and the associated foraging costs, while energy landscapes…”
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Loss of predation risk from apex predators can exacerbate marine tropicalization caused by extreme climatic events
Published in The Journal of animal ecology (01-09-2021)“…Extreme climatic events (ECEs) and predator removal represent some of the most widespread stressors to ecosystems. Though species interactions can alter…”
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Does tiger shark predation risk influence foraging habitat use by bottlenose dolphins at multiple spatial scales?
Published in Oikos (01-08-2006)“…Prey availability and predation risk are important determinants of habitat use, but their importance may vary across spatial scales. In many marine systems,…”
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