Banca de DEFESA: MARIA CAROLINA RODELLA MANZANO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MARIA CAROLINA RODELLA MANZANO
DATA : 03/12/2020
HORA: 14:00
LOCAL: meet.google.com/off-xyja-swt
TÍTULO:

Environmental and biotic influences: understanding the acoustic diversity in communities of anuran amphibians in the Atlantic Forest

PÁGINAS: 120
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Teórica
RESUMO:

Anuran amphibians are an ideal model for studies on acoustic communication since they vocalize together, forming multi-species choruses during reproductive periods. Many aspects seem to affect the acoustic signals in this group, including body size, climatic conditions, vegetation structure, and biotic interactions. Understanding how the advertisement calls for anurans varies across communities is relevant, especially in threatened environments as the Atlantic Forest. In this way, the general objective of this work was to investigate the acoustic diversity in different communities of anurans along the Atlantic Forest of southeastern Brazil, from five specific questions in two chapters. Data collection was carried out in ten communities, between September 2018 and March 2019, and comprised information about species, phylogenetic, functional and acoustic diversities in each location, besides variables related to vegetation and climatic conditions. In the first chapter, we described the advertisement calls of 18 anuran species and fill gaps of information in the literature. From regression analysis, we provide information on the relationship between body size and dominant frequency, and between air temperature and call duration for all species. We did not observe any pattern in relationships between such parameters, with a few species showing significant relationships, although always negative. In the second chapter, we investigated patterns in the use of acoustic space through a null models approach, including species composition and intraspecific variation. We observed that both individuals and species contribute to non-random patterns of acoustic space. We also observed that the acoustic diversity of anuran communities seems to be positively related to the functional diversity and the surrounding vegetation density. In general, we provide new information at species and community levels. We investigated and described the intraspecific variation of the advertisement calls and explored the patterns of acoustic space use in ecological communities. Finally, our results reinforce the value soundscapes as ecosystem resources, where sound signatures would not be found anywhere else with the same pattern.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1804548 - RICARDO JANNINI SAWAYA
Membro Titular - Examinador(a) Interno ao Programa - 1768895 - GUSTAVO MUNIZ DIAS
Membro Titular - Examinador(a) Externo à Instituição - DENISE DE CERQUEIRA ROSSA-FERES - UNESP
Membro Suplente - Examinador(a) Interno ao Programa - 1763457 - VANESSA KRUTH VERDADE
Membro Suplente - Examinador(a) Externo à Instituição - FERNANDO RODRIGUES DA SILVA - UFSCAR