Ca. Hess et Fc. James, DIET OF THE RED-COCKADED WOODPECKER IN THE APALACHICOLA-NATIONAL-FOREST, The Journal of wildlife management, 62(2), 1998, pp. 509-517
Most territories of the largest population of red-cockaded woodpeckers
(Picoides borealis; RCWs) in the western district of the Apalachicola
National Forest (ANF) do not meet the current foraging-habitat requir
ements in the recovery plan for this species. We suspect that more inf
ormation about the relation between the diet of the RCW and its habita
t is needed and would permit development of better guidelines for the
ANF and other populations. We studied diets of adult and nestling RCWs
and their relation to variation in habitat. We found that ants were t
he dominant prey item by biomass (58%). Additional major items in stom
achs of adult RCW's were other arthropods, fruits and seeds, and wood.
Of the 4 species of ants present in samples, 74% of the biomass consi
sted of eggs, lan ae, pupae, and adults of the arboreal ant Crematogas
ter ashmeadi. Territories burned more frequently had pine trees (Pinus
spp.) with a higher diversity of ant species and lower proportions of
trees occupied, by C. ashmeadi than did territories burned less frequ
ently. Also, stomach samples from adult male woodpeckers at frequently
burned sites had lower proportions of ants, including C. ashmeadi. Mo
re information is needed about the dynamics of interspecific relations
within arthropod communities of longleaf Dine trees (P. palustris), t
he importance of ants to the ecology of the RCW, and the relevance of
variation in habitat to diets of RCWs.