Simulated datasets.

• Main Authors: Nathan J. Crum (10892256), Lisa C. Neyman (10892259), Timothy A. Gowan (10892262)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Ecology; Cancer; Inorganic Chemistry; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Mathematical Sciences not elsewhere classified; line transect surveys; abundance estimation; line transects; North Atlantic right whales; distance sampling; capture-recapture abundance estimators; line transect data; North Atlantic right whale abundanc.; line transect sampling; search encounter; line transect survey data; distance sampling estimators; distance sampling estimates; Spatial capture-recapture abundance.; distance sampling models; North Atlantic; North Atlantic right whale
• Online Access: https://doi.org/10.1371/journal.pone.0252231.g001

Examples of simulated datasets following a spatial capture-recapture model where density was uniform across the state space (top row) or a function of a spatial covariate in the state space (bottom row). Each individual was associated with an activity center, depicted by the points in the left column. Individuals were located around their respective activity centers on each sampling occasion, represented for one individual by the open circles in the middle column. The probability of an individual moving to a particular location during an occasion was a function of the distance from its activity center, with the individual being more likely to be located close to rather than far from the activity center. These locations were also distributed as a function of the spatial covariate in the spatial covariate scenario (bottom row). Line transect surveys, represented by the horizontal lines, were conducted during each sampling occasion. The probability that an individual was detected on an occasion was a function of the distance between its location on that occasion and the closest point on a transect line, with the probability being higher the closer an individual was to a line (right column). The locations of detections are depicted by the crossed-out circles in the right column.