Long-term tracking captures the timing of ontogenetic niche shifts in Northeast Pacific white sharks

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, trophic niche shifts in white sharks (Carcharodon carcharias) are well documented, but the timing of the spatial niche shift that is hypothesized to occur with the trophic niche shift remains poorly understood. To document how fine-scale area use varies as sharks age and the timing of the ontogenetic spatial shift of this top predator, we tracked individual white sharks tagged as young-of-the-year or young juveniles over multiple years. Using data from juvenile white sharks detected over multiple years in a nursery habitat with a high-density receiver array, we found no difference in area use with age. However, using a coast-wide receiver array including nursery and adult habitat, we found the probability of detecting a juvenile white shark in nursery habit..., , , # Data from: Long-term tracking captures the timing of ontogenetic niche shifts in Northeast Pacific white sharks

## Description of the data and file structure

In \"Logan et al_JWS_PresenceAbsence_df.csv\"
Date - Date (mm/dd/YYYY)
Shark - Unique identifier for each shark of the dataset, unique for each individual
Dect - binary variable for if a the shark was detected on a given day. 0 = not detected, 1 = detected. Can be detected anywhere on the array.
NumDect - Number of detections recorded during that day for that individual. If detected over multiple regions in a day, the region where the most detections occur is reported (mode of detection regions).
Age - Estimated age of the individual (years). Calculated from the total length of the shark at tagging (to assign age at tagging using von Bertallanffy growth curve parameters) plus the number of days passed since tagging. See text for additional detail.
Sex - Sex of the shark determined at time of tagging.
TagMethod - The method used f...