Northern-gulf-coast
Guides
Arctosa sanctaerosae
Santa Rosa Wolf Spider
Arctosa sanctaerosae is a wolf spider endemic to the secondary dunes of white sandy beaches along the Northern Gulf Coast of the United States. The species is nocturnal and burrow-dwelling, with discrete generations. It has experienced significant habitat degradation and fragmentation due to coastal development and tourism over the last century, resulting in reduced gene flow and smaller effective population sizes across five identified population clusters. Hurricanes pose additional natural disturbance, with population recovery influenced by dune height and vegetation density.