Banca de QUALIFICAÇÃO: THAYNA SILVA BATISTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : THAYNA SILVA BATISTA
DATE: 22/03/2022
TIME: 10:30
LOCAL: On line
TITLE:

Estimativas de ocupação, detecção e densidade de onças-pardas no Parque Estadual do Rio Doce, Minas Gerais

Occupancy and detection probabilities and density estimates of pumas in the Rio Doce State Park, Minas Gerais.

KEY WORDS:

habitat use and density

PAGES: 11
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUBÁREA: Ecologia Teórica
SUMMARY:

Information on habitat use and density estimates are extremely important for species conservation, but for pumas that have large home ranges and are difficult to detect such data are difficult to obtain. Thus, the present study aims to estimate the probabilities of occupancy, detection and density of pumas in the Rio Doce State Park, one of the last refuges for species in the Atlantic Forest. Photographic records of pumas obtained by a random survey conducted between 2016 and 2017 will be used. In order to investigate how the effects of environmental variables and anthropic interference may affect habitat use by the species, models of occupancy and detection will be used. For the modeling of these parameters, the detection history will be constructed, formed by data of presence and absence of the species and predictor variables. Next, stepdown approaches and all possible combinations of covariates for occupancy and detection will be used in order to verify the influence of each covariate and obtain the estimates of occupation and detection. To estimate abundance, three researchers will use obvious and subtle marks to individualize pumas in the records and build detection history will be constructed for each individual. These data will be analyzed using recent markup-review modeling techniques. Then, the size of the area searched will be determined by estimates of the average maximum distance moved (1/2 MMDM) and the application of buffers around each sampling point. Finally, the estimate of abundance of pumas will be divided by the estimate of the total area surveyed to obtain density estimates.

BANKING MEMBERS:
Presidente - 1804372 - FERNANDO CESAR CASCELLI DE AZEVEDO
Interno - 032.396.116-94 - CRISTIANO SCHETINI DE AZEVEDO - UFOP
Externa à Instituição - CARLA GHELER COSTA - USP