Marsh fiddler crabs (Uca pugnax) have diverse foraging habits which are dependent on the personality of each crab. The formation of droves or preference to scavenge alone may correspond to factors such as: Location within a herd, herd size, size of males, and feeding rate. Previous research suggests that 1) a central location in a herd corresponds to an increase in feeding rate 2) herd size doesn't affect feeding rates and 3) location within a herd often is related to an individual's size. A multi-year observational study was conducted to determine the validity of these claims and found that while some of these assertions were supported, others lacked any sort of statistical support.
"Fiddler Crabs and Selfish Herds: High School Cliques or More Diverse?,"
Bridges: A Journal of Student Research: Vol. 13
, Article 6.
Available at: https://digitalcommons.coastal.edu/bridges/vol13/iss13/6