Banca de DEFESA: VICTORIA MARIA REIS DE SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VICTORIA MARIA REIS DE SOUZA
DATE: 26/03/2024
TIME: 09:00
LOCAL: Virtual/ Google meet
TITLE:

The influence of environmental and anthropogenic factors on the presence of resident shorebirds in the Banco dos Cajuais Western Hemisphere Shorebird Reserve Network (WHSRN) Site, coastal of northeast Brazil.

KEY WORDS:

Shorebirds, habitat use, coastal breeding areas, occupancy, northeast Brazil, conservation.

PAGES: 67
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

Providing accurate information on population status and habitat preferences is
essential for developing conservation strategies for shorebirds. Using key
species to understand patterns of habitat use can contribute and extend
conservation benefits to other shorebird species that share the same habitat.
The aim of this study was to analyze the habitat preferences of the endangered
Wilson’s Plover (Charadrius wilsonia) and the American Oystercatcher
(Haematopus palliatus), breeding shorebirds residing strictly along the coast.
We analyzed the presence of the species with environmental and anthropic
variables, to understand which variables influence the occupancy (Ѱ) and
detectability (p) probabilities of the species in the Western Hemisphere
Shorebird Reserve Network site Banco dos Cajuais, in the semi-arid central
portion of the coastal zone of Brazil. Data were collected from July 2022 to June
2023. We found that Haematopus palliatus was more present (Ѱ = 0.99) than
Charadrius wilsonia (Ѱ = 0.87), but both species had a high probability of
occupancy. We found that the occupancy of Charadrius wilsonia and
Haematopus palliatus is influenced by variation in the structure of the
environment and by natural and anthropogenic disturbances. Among the most
important explanatory variables for species occupancy, a negative influence
stands out for Charadrius wilsonia between occupancy and the distance from
river channels and for Haematopus palliatus a positive influence between
occupancy and the availability of exposed sandy beach soil. The results of this
work can contribute to the management of areas recognized as priorities for the
conservation of Charadrius wilsonia and Haematopus palliatus, in addition to helping to identify new areas which have determining factors for the occurrence of the species.

COMMITTEE MEMBERS:
Presidente - 1439088 - MAURO PICHORIM
Externo à Instituição - FERNANDO AZEVEDO FARIA - FURG
Externo à Instituição - ANDERSON GUZZI - UFDPar