PhD thesis defense by Débora Rother: “ Débora defended her thesis at UNESP (Rio Claro, Brazil) the 30th Nov. The thesis is entitled: ‘Dispersão de sementes e processos de limitação demográfica de plantas em ambientes com e sem bambus na floresta pluvial Atlântica’. She addressed the patterns of regeneration in the Atlantic rainforest of SE Brazil by combining observational studies of seed rain and seedling emergence and experimental seed addition. She studied Euterpe edulis, Sloanea guianensis, and Virola bicuhyba. The dispersal patterns of these species and their regeneration are deeply influenced in this forest by the presence of bamboo (Guadua tagoara) stands. This heterogeneity causes variation in the composition of the frugivorous avifauna and the density of seeds and established seedlings. She addressed the specific demographic transitions from dispersed seed to established saplings that can limit the natural regeneration of these forests. Bamboo stands influenced seed rain patterns in the complex mosaics of Atlantic rainforest areas, with a variable importance across seasons on the abundance of recruits and species richness of the seed rain. Besides, the hotspots of recruitment were shown as extremely dynamic and related to the spread and decline of G. tagoara stands. Bamboos promote the forest heterogeneity, but the characteristics of rapid colonization of G. tagoara and its invasive behavior can be one additional factor for limiting the growth of plant community and thus its management is important.
The defense went very well and she has already in press or submitted manuscripts of several chapters. Congratulations Dé for an excellent work!”
(Via Weblog de Pedro.)