Avian community response to pine flatwoods management

• Published in: Forest ecology and management Vol. 261; no. 11; pp. 1928 - 1935
• Main Authors: Willcox, Emma V., Giuliano, William M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.06.2011; Elsevier
• Subjects: Abundance; Animal and plant ecology; Animal, plant and microbial ecology; Avian; Biological and medical sciences; Burning; Combustion; Communities; Cutting; Forestry; Fundamental and applied biological sciences. Psychology; Grazing; Management; Pine; Roller chopping; Rollers; Seasons; Species richness; Synecology; Terrestrial ecosystems; USA, Southeast; Abundance; Roller chopping; Avian; Grazing; Species richness; Burning; Forest ecology; Physical environment; Response; Vertebrata; Open woodland; Forestry; Aves; Lowland; Community
• ISSN: 0378-1127; 1872-7042
• DOI: 10.1016/j.foreco.2011.02.017

► Effects of prescribed burning and roller chopping on pine flatwoods avian communities examined. ► Non-breeding avian community negatively affected by dormant season burning. ► Beneficial effects of growing season burning on non-breeding and breeding avian communities. ► Breeding avian community benefited by growing season roller chopping and treatment combination. Across the southeastern United States, changing disturbance regimes threaten the integrity of pine flatwoods, reducing their suitability as habitat for a variety of avian species, many of which are considered of conservation priority. Prescribed burning and roller chopping are management practices widely used in pine flatwoods to control shrubs and increase the growth of herbaceous vegetation. However, the impacts these treatments have on this system and its associated avian communities are largely unknown. We examined the effects of prescribed burning and roller chopping on pine flatwoods avian communities using a paired sample approach. Avian communities were compared between treated (e.g., burned) and untreated areas. We considered abundance and richness of all birds, but also groups of conservation concern, and those likely impacted by seasonal management practices (e.g., breeding and non-breeding categories, and woodland, successional-scrub, and grassland guilds). Dormant season burning resulted in decreases in avian species richness and abundance within the non-breeding, overwintering community. In situations where the maintenance or enhancement of this avian group is desired, growing season burning appears beneficial and should be used in preference to dormant season burning. Growing season burning benefited breeding avian communities, resulting in increases in species richness and abundance within this group. Dormant season roller chopping had no effect on species richness or abundance of any avian category or guild. Increases in abundance within breeding avian communities were observed following growing season roller chopping and a roller chopping/burning combination. Grazing, did not mediate the effects of prescribed burning or roller chopping on avian species richness or abundance. The use of dormant season burning is likely inappropriate in situations where conservation and management of non-breeding, overwintering species is a priority. The use of growing season roller chopping appears to provide a potential treatment alternative in situations where positive effects on breeding species are desired. Overall, maintenance of avian abundance and richness may be best achieved through the diverse application of prescribed burning and roller chopping based on season, frequency, and space.