Banca de DEFESA: MAYRA LAYRA DOS SANTOS ALMEIDA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MAYRA LAYRA DOS SANTOS ALMEIDA
DATA : 29/07/2020
HORA: 08:00
LOCAL: Sala de vídeo conferencia do Campus de Tangará da Serra
TÍTULO:

Conservation of natural areas: A potential strategy to increase the ecosystem service of pollination in soybean and sunflower crops

PALAVRAS-CHAVES:

Wild bees, habitat loss, Cerrado, pollinators, agricultural activities.

PÁGINAS: 82
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Aplicada
RESUMO:

Human activities resulting from the intensification of agricultural in the state of Mato Grosso, have caused habitat loss, resulting in fragmented landscapes, formed by remnants of native vegetation, kept as a Legal Reserve (LR), surrounded by extensive monoculture. This change can drastically affect the pollination service provided by bees in native and cultivated areas. To understand the contribution of LR to the preservation of pollinators and consequently to the yield of soybean and sunflower crops this research was structured in three chapters with the following objectives: (1) to evaluate the role of the Cerrado as a natural support habitat for bees that provide sunflower pollination services and the contribution of pollinators to the yield of this crop; (2) to verify the influence of habitat amount and proximity to natural habitats on composition, richness and abundance of bees in adjacent sunflower crop and; (3) to evaluate the contribution of bees from Cerrado to the soybean crop yield. In the first chapter we show that the bees present in the Cerrado visit the sunflower plantation, and increase the crop yield. In chapter II, when evaluating different agricultural landscapes (natural habitat x sunflower), we showed that species richness and abundance of bees showed a positive relationship with the amount of habitat , decreasing with the increase of the distance from the crop to the natural habitat edge. In addition, we also showed that the weight of sunflower seeds varied with the distance from the natural habitat. In chapter III, when evaluating the service provided by bees from Cerrado in the pollination and soybean crop yield, we found that the plants exposed to pollinators showed a 20% increase in the production of pods and seeds. We emphasize that in this study the number of bee species was high, both in natural areas and crops, indicating the importance of preserving areas of Legal Reserve to guarantee both pollinator biodiversity and the pollination services.

MEMBROS DA BANCA:
Presidente - 101366004 - MONICA JOSENE BARBOSA PEREIRA
Interno - 82328001 - BEATRIZ SCHWANTES MARIMON
Externo ao Programa - 80797005 - CARLA GALBIATI
Externo à Instituição - ELDER FERREIRA MORATO - UFAC
Externo à Instituição - MÁRCIA MOTTA MAUÉS - EMBRAPA