Yannis P. Papastamatiou
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View article: Density-dependent network structuring within and across wild animal systems
Density-dependent network structuring within and across wild animal systems Open
View article: Reviewing seas of data: Integrating image‐based bio‐logging and artificial intelligence to enhance marine conservation
Reviewing seas of data: Integrating image‐based bio‐logging and artificial intelligence to enhance marine conservation Open
Conservation of marine ecosystems can be improved through a better understanding of ecosystem functioning, particularly the cryptic underwater behaviours and interactions of marine predators. Image‐based bio‐logging devices (including imag…
View article: Dynamics of foraging interactions between cookiecutter sharks (Isistius spp.) and short-finned pilot whales (Globicephala macrorhynchus) in Hawaiʻi
Dynamics of foraging interactions between cookiecutter sharks (Isistius spp.) and short-finned pilot whales (Globicephala macrorhynchus) in Hawaiʻi Open
Cookiecutter sharks ( Isistius spp. ) are small pelagic squaloid sharks found throughout tropical and sub-tropical waters that are known to feed opportunistically on a range of prey, including animals much larger than themselves. Short-fin…
View article: Dynamics of foraging interactions between cookiecutter sharks (Isistius spp.) and short-finned pilot whales (Globicephala macrorhynchus) in Hawaiʻi
Dynamics of foraging interactions between cookiecutter sharks (Isistius spp.) and short-finned pilot whales (Globicephala macrorhynchus) in Hawaiʻi Open
Cookiecutter sharks (Isistius spp.) are small pelagic squaloid sharks found throughout tropical and sub-tropical waters that are known to feed opportunistically on a range of prey, including animals much larger than themselves. Short-finne…
View article: Age is not just a number: How incorrect ageing impacts close‐kin mark‐recapture estimates of population size
Age is not just a number: How incorrect ageing impacts close‐kin mark‐recapture estimates of population size Open
Population size is a key parameter for the conservation of animal species. Close‐kin mark‐recapture (CKMR) relies on the observed frequency and type of kinship among individuals sampled from the population to estimate population size. Know…
View article: Abiotic drivers of the space use and activity of gray reef sharks <i>Carcharhinus amblyrhynchos</i> in a dynamic tidal environment
Abiotic drivers of the space use and activity of gray reef sharks <i>Carcharhinus amblyrhynchos</i> in a dynamic tidal environment Open
Predators display rhythms in behavior and habitat use, often with the goal of maximizing foraging success. The underlying mechanisms behind these rhythms are generally linked to abiotic conditions related to diel, lunar, or seasonal cycles…
View article: Intraguild processes drive space‐use patterns in a large‐bodied marine predator community
Intraguild processes drive space‐use patterns in a large‐bodied marine predator community Open
Interspecific interactions, including predator–prey, intraguild predation (IGP) and competition, may drive distribution and habitat use of predator communities. However, elucidating the relative importance of these interactions in shaping …
View article: Directed conservation of the world’s reef sharks and rays
Directed conservation of the world’s reef sharks and rays Open
View article: Age is not just a number: how incorrect ageing impacts close-kin mark-recapture estimates of population size
Age is not just a number: how incorrect ageing impacts close-kin mark-recapture estimates of population size Open
Population size is a key parameter for the conservation of animal species. Close-kin mark-recapture (CKMR) relies on the observed frequency and type of kinship among individuals sampled from the population to estimate population size. This…
View article: Insights into the Relative Abundance, Life History, and Ecology of Oceanic Sharks in the Eastern Bahamas
Insights into the Relative Abundance, Life History, and Ecology of Oceanic Sharks in the Eastern Bahamas Open
Fisheries-independent data on the diversity, relative abundance, and demographic structure of poorly studied, threatened oceanic sharks are absent from much of the western North Atlantic Ocean, where multiple oceanic shark species have exp…
View article: Dynamic energy landscapes of predators and the implications for modifying prey risk
Dynamic energy landscapes of predators and the implications for modifying prey risk Open
Landscapes of fear describe a spatial representation of an animal's perceived risk of predation and the associated foraging costs, while energy landscapes describe the spatial representation of their energetic cost of moving and foraging. …
View article: First insights into the population characteristics and seasonal occurrence of the great hammerhead shark, Sphyrna mokarran (Rüppell, 1837) in the Western Tuamotu archipelago, French Polynesia
First insights into the population characteristics and seasonal occurrence of the great hammerhead shark, Sphyrna mokarran (Rüppell, 1837) in the Western Tuamotu archipelago, French Polynesia Open
The occurrence and seasonality of the Critically Endangered great hammerhead shark, Sphyrna mokarran , is data deficient in the Central Pacific region. Using photo-identification and laser-photogrammetry, we describe the seasonal populatio…
View article: Biologging and Biotelemetry: Tools for Understanding the Lives and Environments of Marine Animals
Biologging and Biotelemetry: Tools for Understanding the Lives and Environments of Marine Animals Open
Addressing important questions in animal ecology, physiology, and environmental science often requires in situ information from wild animals. This difficulty is being overcome by biologging and biotelemetry, or the use of miniaturized anim…
View article: A general swimming response in exhausted obligate swimming fish
A general swimming response in exhausted obligate swimming fish Open
Marine organisms normally swim at elevated speeds relative to cruising speeds only during strenuous activity, such as predation or escape. We measured swimming speeds of 29 ram ventilating sharks from 10 species and of three Atlantic bluef…
View article: An Updated Greek National Checklist of Chondrichthyans
An Updated Greek National Checklist of Chondrichthyans Open
Accurate checklists of species are essential for evaluating their conservation status and for understanding more about their distribution, biology and ecology and, therefore, the first step in order to effectively protect them. According t…
View article: First descriptions of the seasonal habitat use and residency of scalloped hammerhead (Sphyrna lewini) and Galapagos sharks (Carcharhinus galapagensis) at a coastal seamount off Japan
First descriptions of the seasonal habitat use and residency of scalloped hammerhead (Sphyrna lewini) and Galapagos sharks (Carcharhinus galapagensis) at a coastal seamount off Japan Open
Background The Northwestern Pacific is a data-poor region for studies into the movements and habitat use of open ocean and pelagic sharks. However, this region experiences considerable pressure from commercial fishing. Therefore, shark mov…
View article: Great white sharks occasionally hunt in pairs – new research sheds light on social behavior of these mysterious predators
Great white sharks occasionally hunt in pairs – new research sheds light on social behavior of these mysterious predators Open
View article: Fear at the top: killer whale predation drives white shark absence at South Africa’s largest aggregation site
Fear at the top: killer whale predation drives white shark absence at South Africa’s largest aggregation site Open
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 can disrupt ecosystems and trigger trophic cascades, bu…
View article: Social dynamics and individual hunting tactics of white sharks revealed by biologging
Social dynamics and individual hunting tactics of white sharks revealed by biologging Open
Social foraging, where animals forage in groups, takes many forms but is less studied in marine predators as measuring social associations in the wild is challenging. We used biologging (activity, cameras and telemetry receivers) sensors t…
View article: Coupled atmosphere-wave-ocean simulation of Hurricane Dorian (2019)
Coupled atmosphere-wave-ocean simulation of Hurricane Dorian (2019) Open
Description This dataset provides the output of the coupled atmosphere-wave-ocean simulation of Hurricane Dorian from August 29 to September 7, 2019. The simulation is a composite of two separate simulations: From 00 UTC A…
View article: Coupled atmosphere-wave-ocean simulation of Hurricane Dorian (2019)
Coupled atmosphere-wave-ocean simulation of Hurricane Dorian (2019) Open
Description This dataset provides the output of the coupled atmosphere-wave-ocean simulation of Hurricane Dorian from August 29 to September 7, 2019. The simulation is a composite of two separate simulations: From 00 UTC …
View article: Conservation implications of forage base requirements of a marine predator population at carrying capacity
Conservation implications of forage base requirements of a marine predator population at carrying capacity Open
View article: Incorporating thermodynamics in predator–prey games predicts the diel foraging patterns of poikilothermic predators
Incorporating thermodynamics in predator–prey games predicts the diel foraging patterns of poikilothermic predators Open
Models of foraging behaviour typically assume that prey do not adapt to temporal variation in predation risk, such as by avoiding foraging at certain times of the day. When this behavioural plasticity is considered—such as in predator–prey…
View article: The Functional and Ecological Significance of Deep Diving by Large Marine Predators
The Functional and Ecological Significance of Deep Diving by Large Marine Predators Open
Many large marine predators make excursions from surface waters to the deep ocean below 200 m. Moreover, the ability to access meso- and bathypelagic habitats has evolved independently across marine mammals, reptiles, birds, teleost fishes…
View article: Endothermy makes fishes faster but does not expand their thermal niche
Endothermy makes fishes faster but does not expand their thermal niche Open
Regional endothermy has evolved several times in marine fishes, and two competing hypotheses are generally proposed to explain the evolutionary drivers behind this trait: thermal niche expansion and elevated cruising speeds. Evidence to su…
View article: Sharks surf the slope: Current updrafts reduce energy expenditure for aggregating marine predators
Sharks surf the slope: Current updrafts reduce energy expenditure for aggregating marine predators Open
An animal's energy landscape considers the power requirements associated with residing in or moving through habitats. Within marine environments, these landscapes can be dynamic as water currents will influence animal power requirements an…
View article: Spatial Connectivity and Drivers of Shark Habitat Use Within a Large Marine Protected Area in the Caribbean, The Bahamas Shark Sanctuary
Spatial Connectivity and Drivers of Shark Habitat Use Within a Large Marine Protected Area in the Caribbean, The Bahamas Shark Sanctuary Open
Marine protected areas (MPAs) have emerged as potentially important conservation tools for the conservation of biodiversity and mitigation of climate impacts. Among MPAs, a large percentage has been created with the implicit goal of protec…
View article: A scalable, satellite-transmitted data product for monitoring high-activity events in mobile aquatic animals
A scalable, satellite-transmitted data product for monitoring high-activity events in mobile aquatic animals Open
A growing number of studies are using accelerometers to examine activity level patterns in aquatic animals. However, given the amount of data generated from accelerometers, most of these studies use loggers that archive acceleration data, …
View article: Multi year social stability and social information use in reef sharks with diel fission-fusion dynamics: Raw acoustic detection
Multi year social stability and social information use in reef sharks with diel fission-fusion dynamics: Raw acoustic detection Open
Animals across vertebrate taxa form social communities and often exist as fission-fusion societies. Central place foragers (CPF) may form social groups, from which they will predictably disperse to forage, either individually or in smaller…
View article: Heterospecific Foraging Associations Between Reef‐Associated Sharks: First Evidence of Kleptoparasitism in Sharks
Heterospecific Foraging Associations Between Reef‐Associated Sharks: First Evidence of Kleptoparasitism in Sharks Open
Social predation allows groups of predators to search for, pursue, and capture prey with greater efficiency than using solitary hunting. During ~3,000 hours of underwater observations of nocturnal shark foraging activity, we report for the…