Banca de DEFESA: ELAINE DOS REIS SILVA FERREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ELAINE DOS REIS SILVA FERREIRA
DATE: 04/12/2023
TIME: 14:00
LOCAL: Universidade Federal de São João del-Rei - Campus Dom Bosco
TITLE:

Invasion of exotic species around trails in the Libélulas da Serra de São José State Wildlife Refuge - MG

KEY WORDS:

Invasive alien species; trails; phytophysiognomy of cerrado stritu sensu and campo rupestre.

PAGES: 36
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia Aplicada
SUMMARY:

This study aimed to identify and evaluate the frequency and percentage of cover occupied by
native and invasive exotic species (EEI) around 13 trails with cerrado physiognomies in the
Libélulas da Serra de São José Wildlife Refuge - MG. 66 Sample Units were allocated to the
investigated trails, each sampling unit is composed of 3 plots of 1.00 x 2.5 m, perpendicular to
the edges. The number of Sampling Units per trail was proportional to the length of the trail
within the Refuge, where individuals from the woody and herbaceous components were
evaluated. The percentage of coverage for invasive and native alien species per trail was
calculated by comparing the invaded coverage area in the edge, transition (6 m from the edge)
and interior (12 m from the edge) sectors. There was no statistical difference in invasion between
the sectors, finding invasion in 48.5% of the border plots, 50% of the transition plots and 48.5%
of the interior plots. The percentage of coverage by EEI is affecting the richness of native species
in the three sectors (F=0.0487, p= 0.9525), the higher the percentage of coverage by EEI the
lower the average richness of native species. 2143 individuals distributed across 486 species
were sampled, with EEI of 6 genera being identified: Agave, Eucalyptus, Melinis, Pinus,
Psidium and Urochloa. Invasion by M. minutiflora occurred in 10.70% and Uruchloa spp. 5.93%
of the investigated area, both species were detected in 10 trails.

BANKING MEMBERS:
Externa à Instituição - LUCIANA BOTEZELLI - UNIFAL-MG
Presidente - 1672415 - GISLENE CARVALHO DE CASTRO
Interno - 1398240 - JOSÉ ELVINO DO NASCIMENTO JUNIOR