Banca de DEFESA: IZABEL AMORIM DE SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : IZABEL AMORIM DE SOUZA
DATA : 27/03/2020
HORA: 08:00
LOCAL: Sala de Video conferência da Reitoria - Cáceres
TÍTULO:
PALAVRAS-CHAVES:

VEGETABLE COVER, ABUNDANCE, BODY CONDITION, FUNCTIONAL TRAITS, LANDSCAPE.

PÁGINAS: 38
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia de Ecossistemas
RESUMO:

Changes in landscape attributes lead to habitat loss, which is the reduction in the amount of native vegetation area available for species to survive and persist in the landscape. These landscape changes, such as habitat degradation, have been a serious problem for small mammals. Thus, the objective of this work is to investigate the effect of habitat loss on the abundance, extinction, body condition and functional traits of small mammals along a gradient of fragmented landscapes. Our results show that habitat loss can affect populations of small mammals, leading to population decline, until they reach an extinction threshold. This effect was more evident for Thrichomys pachyurus, who is a habitat specialist, who had both its abundance and occurrence affected as well as his body condition. Rhipidomys macrurus (specialists) showed no significant differences between the landscapes. Gracilinanus agilis (generalist) had a significantly greater abundance in areas with less than 50% vegetation, but its body condition was not affected as well as the other species. Generalists such as Didelphis albiventris and Thylamys macrurus did not show significant effects of habitat loss on any of the variables evaluated. These conclusions will be useful for future decisions on landscape management in this region.

Changes in landscape attributes lead to habitat loss, which is the reduction in the amount of native vegetation area available for species to survive and persist in the landscape. These landscape changes, such as habitat degradation, have been a serious problem for small mammals. Thus, the objective of this work is to investigate the effect of habitat loss on the abundance, extinction, body condition and functional traits of small mammals along a gradient of fragmented landscapes. Our results show that habitat loss can affect populations of small mammals, leading to population decline, until they reach an extinction threshold. This effect was more evident for Thrichomys pachyurus, who is a habitat specialist, who had both its abundance and occurrence affected as well as his body condition. Rhipidomys macrurus (specialists) showed no significant differences between the landscapes. Gracilinanus agilis (generalist) had a significantly greater abundance in areas with less than 50% vegetation, but its body condition was not affected as well as the other species. Generalists such as Didelphis albiventris and Thylamys macrurus did not show significant effects of habitat loss on any of the variables evaluated. These conclusions will be useful for future decisions on landscape management in this region.

 

MEMBROS DA BANCA:
Presidente - 80970002 - DIONEI JOSE DA SILVA
Interno - 71440008 - MANOEL DOS S. FILHO
Interno - 132029001 - EDDIE LENZA DE OLIVEIRA
Externo à Instituição - PAULO CÉSAR VÊNERE - UFMT
Externo à Instituição - GUSTAVO RODRIGUES CANALE - UFMT