Banca de DEFESA: BRUNA LAYZ CARVALHO DE MELLO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : BRUNA LAYZ CARVALHO DE MELLO
DATA : 30/04/2019
HORA: 08:30
LOCAL: Sala de videoconferência do centro de convivência
TÍTULO:

THE ROLE OF HERBIVORY AND CLIMBING PLANTS ON THE RESTORATION SUCCESS OF CAATINGA PLANT COMMUNITIES

PALAVRAS-CHAVES:

Caatinga restoration; recovery of degraded areas; adapted species; climbing plants; insect herbivores.

PÁGINAS: 44
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
RESUMO:

Semi-arid ecosystems are highly susceptible to landscape degradation. Among them, Caatinga is one of the most vulnerable regions. Caatinga restoration could reverse habitat loss and protect important ecosystem services for local people. Methods to advance Caatinga restoration have successful with the use of nurse plants and new planting techniques. However, some post-planting problems can interfere on the restoration success of Caatinga, such as the pressure of climbing herbaceous plants and insect herbivores. Restoration programs should then focus on restoring plant assemblages or particular species that are resistant to climbers and herbivores. The aim of this study was to test how insect herbivory, plant climbers, plant community diversity and species identity can affect survival and growth of transplants during the first years of Caatinga restoration. Sixteen native Caatinga species were planted in 147 plots with 5 diversity levels: 1, 2, 4, 8, 16. Seedlings were monitored over two years. For all plant species we obtained data on survival, growth, herbivory rate and incidence of plant climbers. Survival differed among plant species and the incidence of vines influenced their survival. The incidence of herbivory had no effect on seedling survival in general. Growth differed between species and was significantly related to both the incidence of plant climbers and herbivory. Plant diversity did not influence survival and seedling growth, or was related to incidence of plant climbers and herbivory. Thus, we can conclude that plant climbers and insect herbivory are important in determining the initial success of a restoration projects.  We identified species that maintained survival rates and even grew under the influence of plant climbers and herbivores. These species are C. leptophloeos, M. tenuiflora, A. pyrifolium, P. stinulacea, A. columbrina and C. vitifolium. There is an advantage in using these species in future restoration projects because they do not need constant care with vines and insects.

MEMBROS DA BANCA:
Externa à Instituição - ADRIANA PELLEGRINI MANHÃES - UFRN
Presidente - 1677189 - GISLENE MARIA DA SILVA GANADE
Externa à Instituição - MARINA ANTONGIOVANNI DA FONSECA