Banca de QUALIFICAÇÃO: CLARISSE CAROLINE DE OLIVEIRA E SILVA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : CLARISSE CAROLINE DE OLIVEIRA E SILVA
DATE: 31/01/2020
TIME: 14:00
LOCAL: Sala de Reuniões - DECOL
TITLE:

Apparent Survival of Neotropical Birds and Factors Related to Their Variation

KEY WORDS:

Capture-mark-recapture; Apparent survival; Demography; Cormack-Jolly-Seber; Tropical dry forests; Neotropics; Tropical birds; Bird Populations;

PAGES: 48
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

Effective bird conservation requires knowledge of a relationship between environmental conditions and demographic rates. A widespread generalization about the life history of this taxon is that birds in tropical regions have higher longevity and slow life rhythm, while temperate regions birds have low survival and fast life rhythm. This happens because demographic rates are related to the latitudinal gradient of environmental conditions such as temperature and food availability. Despite the growing number of studies regarding neotropical birds survival, only a small species percentage has been evaluated. Moreover, most studies are conducted in rainforests, resulting in a geographically restricted database. The large territorial extension, as well as environments diversity and climate turn this area conducive to evaluate hypotheses about changes in bird life history. The thesis is divided into three chapters and aims to identify spatio -temporal trends of neotropical birds survival based on changing environmental conditions. We performed the analysis with our own data, obtained through capture-mark-recapture and data acquired from bibliographic survey. Taking into account the low number of studies about birds survival in tropical dry forests and its climate peculiarities, in the first chapter, we characterized birds apparent survival in tropical dry forests located in the neotropics and we analyzed its relationship with seasonality intensity. In the second chapter, since neotropical birds survival data are spatially and taxonomically restricted, we estimated apparent survival for 145 populations, from nine locations, up to 64º latitude, to assess the relationship between survival and climate variables. The areas studied in this chapter include both rainforest and seasonal environments. The third chapter, still under construction, aims to understand how survival varies in populations of the same species.

BANKING MEMBERS:
Externo à Instituição - GUILHERME SANTOS TOLEDO DE LIMA - UFRPE
Externa à Instituição - Luciana Vieira de Paiva - UFERSA
Presidente - 1439088 - MAURO PICHORIM