Banca de QUALIFICAÇÃO: MARIANE MELO PEREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MARIANE MELO PEREIRA
DATE: 31/10/2024
TIME: 14:00
LOCAL: Google Meet
TITLE:

ECOLOGY OF EPIEDAPHIC ENTOMOBRYOMORPHA (COLLEMBOLA, HEXAPODA) IN AN URBAN REMNANT OF ATLANTIC FOREST IN THE NORTHEAST OF BRAZIL

KEY WORDS:

Arthropods; Biodiversity; Springtails; Soil fauna; Population fluctuation.

PAGES: 24
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia de Ecossistemas
SUMMARY:

Springtails are microarthropods considered as a basal group of Hexapoda, and are one of the most populous terrestrial taxa on the planet. These organisms are closely related to the soil environment, and feed on organic matter, being part of the cycle chain of nutrients in the soil. Because they are very sensitive to environmental changes, they are also considered efficient bioindicators. The Northeast region of Brazil is home to urban remnants of Atlantic Forest with high potential for soil biological diversity, but these organisms still remain undersampled in this biome. These urban remnants suffer a great anthropogenic influence, and the recognition of diversity and ecological dynamics that they shelter is fundamental for the management and maintenance of these areas. Thus, this work aims to inventory the fauna of Entomobryomorpha of the Parque Estadual Dunas do Natal in rainy and dry periods along a vegetational gradient with the use of pitfall traps, seeking to analyze the population fluctuation of species between the studied stations and their microhabitat preferences. For this, in addition to the collection of specimens, environmental parameters such as phytophysiognomy, temperature and relative humidity of the air, soil pH, leaf height and canopy cover were measured. A total of 2.335 specimens of Entomobryomorpha were collected, distributed in two families, six subfamilies, nine genera, 11 morphospecies and eight nominal species in the two collection periods, where a clear predominance of the Entomobryidae family can be observed. The results of α diversity, as well as the richness and abundance of species, were significantly higher in the rainy period compared to the dry period. The similarity between species composition was greater during the dry period, with a predominance of species more adapted to water scarcity, while the rainfall regime favored the heterogeneity of communities. Finally, the β diversity highlighted that dissimilarity between periods is mainly due to species substitution, especially in the middle and low forest phytophsionomies, with the high forest being the most stable.

COMMITTEE MEMBERS:
Interna - 3152261 - ANAMARIA DAL MOLIN
Presidente - 1879211 - BRUNO CAVALCANTE BELLINI
Externo à Instituição - NIKOLAS GIOIA CIPOLA