Patrick T. Rex
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View article: eDNA metabarcoding detection of nearshore juvenile white sharks (Carcharodon carcharias) and prey fish communities
eDNA metabarcoding detection of nearshore juvenile white sharks (Carcharodon carcharias) and prey fish communities Open
View article: The Effects of Depth and Altitude on Image-Based Shark Size Measurements Using UAV Surveillance
The Effects of Depth and Altitude on Image-Based Shark Size Measurements Using UAV Surveillance Open
Drones are an ecological tool used increasingly in shark research over the past decade. Due to their high-resolution camera and GPS systems, they have been used to estimate the sizes of animals using drone-based photogrammetry. Previous st…
View article: Long‐term tracking captures the timing of ontogenetic niche shifts in northeast <scp>Pacific</scp> white sharks
Long‐term tracking captures the timing of ontogenetic niche shifts in northeast <span>Pacific</span> white sharks Open
Ontogenetic changes in area use, habitat use, and trophic interactions play an important role in the ecology, demography, and ultimately population dynamics of many species. Assumed to be driven by shifting life‐history requirements, troph…
View article: The influence of micro-scale thermal habitat on the movements of juvenile white sharks in their Southern California aggregation sites
The influence of micro-scale thermal habitat on the movements of juvenile white sharks in their Southern California aggregation sites Open
While juvenile white sharks (JWS) can display regional endothermy, the need to maintain internal temperatures within an energetically favorable range likely drives thermoregulatory movements to maximize growth and foraging efficiency. Many…
View article: Patterns of overlapping habitat use of juvenile white shark and human recreational water users along southern California beaches
Patterns of overlapping habitat use of juvenile white shark and human recreational water users along southern California beaches Open
Juvenile white sharks (JWS) of the Northeastern Pacific population are present in nearshore southern California waters and form mixed size class (~1.5–3 m) aggregations for weeks to months, often within 500 m of shore. These nearshore beac…
View article: High resolution acoustic telemetry reveals swim speeds and inferred field metabolic rates in juvenile white sharks (Carcharodon carcharias)
High resolution acoustic telemetry reveals swim speeds and inferred field metabolic rates in juvenile white sharks (Carcharodon carcharias) Open
White sharks ( Carcharodon carcharias ) are the largest shark species to display regional endothermy. This capability likely facilitates exploitation of resources beyond thermal tolerance thresholds of potential sympatric competitors as we…
View article: Observations of a species‐record deep dive by a central Pacific female scalloped hammerhead shark (<scp><i>Sphyrna lewini</i></scp>)
Observations of a species‐record deep dive by a central Pacific female scalloped hammerhead shark (<span><i>Sphyrna lewini</i></span>) Open
A female scalloped hammerhead shark ( Sphyrna lewini ) conducted a species record deep dive to 1240 m in coastal‐pelagic waters off Hawaii Island. This extends the deepest known depth range of the species by over 200 m (650 ft) and highlig…
View article: Non-random Co-occurrence of Juvenile White Sharks (Carcharodon carcharias) at Seasonal Aggregation Sites in Southern California
Non-random Co-occurrence of Juvenile White Sharks (Carcharodon carcharias) at Seasonal Aggregation Sites in Southern California Open
Many terrestrial and aquatic taxa are known to form periodic aggregations, whether across life history or solely during specific life stages, that are generally governed by the availability and distribution of resources. Associations betwe…