Navegando por Autor "Silva, Pedro Giovâni da"

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Biodiversity and ecosystem services in the campo rupestre : a road map for the sustainability of the hottest Brazilian biodiversity hotspot.
(2020) Fernandes, Geraldo Wilson Afonso; Garcia, Lucas Arantes; Silva Júnior, Milton Barbosa da; Barbosa, Newton Pimentel de Ulhôa; Batista, Eugênia Kelly Luciano; Silva, Wallace Beiroz Imbrosio da; Resende, Fernando de Moura; Abrahão, Anna; Almada, Emmanuel Duarte; Alves, Elaine; Alves, Natacha Jordania da Silva; Angrisano, Patrícia; Arista, Montserrat; Arroyo, Juan; Arruda, André Jardim; Bahia, Thaíse de Oliveira; Braga, Laura; Brito, Lilian de Almeida; Pereira, Marcos Callisto de Faria; Paiva, Dario Caminha; Carvalho, Marilia; Conceição, Abel Augusto; Costa, Lêda Naiara Pereira; Cruz, Antônio Jorge do Rosário; Blum, Jessica Cunha; Dagevos, John; Dias, Braulio Ferreira de Souza; Pinto, Victor Diniz; Dirzo, Rodolfo; Domingos, Daniel Quedes; Andrade, Livia Echternacht; Fernandes, Stephannie; Figueira, José Eugênio Côrtes; Fiorini, Cecília Fonseca; Giulietti, Ana Maria; Gomes, Augusto; Gomes, Vanessa Matos; Gontijo, Bernardo Machado; Goulart, Fernando Figueiredo; Guerra, Tadeu José de Abreu; Junqueira, Patrícia A.; Santos, Débora Lima; Nascimento, Julia Marques; Meira Neto, João Augusto Alves; Miola, Deise T. B.; Morellato, Leonor Patricia Cerdeira; Negreiros, Daniel; Paula, Elizabeth Neire da Silva Oliveira de; Neves, Ana Carolina; Neves, Frederico de Siqueira; Novais, Samuel Matos Antunes de; Oki, Yumi; Oliveira, Elizabeth; Oliveira, Rafael Silva; Pivari, Marco Otávio Dias; Pontes Junior, Euripedes; Ranieri, Bernardo Dourado; Ribas, Rodrigo Pinheiro; Scariot, Aldicir Osni; Schaefer, Carlos Ernesto Gonçalves Reynaud; Sena, Letícia; Silva, Pedro Giovâni da; Siqueira, Paulo Ricardo; Soares, Natalia Costa; Soares Filho, Britaldo Silveira; Solar, Ricardo Ribeiro de Castro; Tabarelli, Marcelo; Vasconcellos, Rogério Pinto; Vilela, Evaldo Ferreira; Silveira, Fernando Augusto de Oliveira e
Global sustainability rests on a myriad of benefits provided by natural ecosystems that support human livelihoods and well-being, from biodiversity persistence to climate regulation. The undeniable importance of conserving tropical forests has drawn most of the conservation spotlight towards it. However, open ecosystems such as the Brazilian Campo Rupestre (rupestrian grassland), have been historically overlooked despite their high diversity and key associated ecosystem services. We highlight major current threats to the persistence of the Campo Rupestre emphasizing its ecological, social, cultural, geoenvironmental, and economic importance. We call attention to the importance of the Campo Rupestre as a reservoir of biodiversity and ecosystem services and offer priority actions that resulted from discussions involving scientists, industry representatives, environmental managers, and other members of civil society. Proposed actions include efforts related to ecological restoration, sustainable ecotourism, protection of traditional ecological knowledge, identification of emerging research questions, and development of tailored public policies. Such issues are integrated into a framework that collectively represents a road map to safeguard the Campo Rupestre from further degradation and steer its historical overexploitation towards sustainable management. Safeguarding the future of non-forest biomes like this poses a challenge to current paradigms of nature conservation. By establishing priorities and guidelines, we propose an actionable plan, which we hope can support informed decision-making policy towards a sustainable use of the Campo Rupestre.
Dung beetles can sow : the potential of secondary seed dispersers to assist ecological restoration.
(2022) Almeida, Hernani Alves; Itabaiana, Yasmine Antonini; Silva Junior, Cláudio Tavares; Braga, Rodrigo F.; Silva, Pedro Giovâni da; Silva, Wallace Beiroz Imbrosio da
1. Restoration of disturbed environments in which soil surface layers have been removed is challenging and its success depends on the characteristics of the exposed soil layers and neighbour organisms. Dung beetles are important elements in the restoration of degraded habitats as secondary seed dispersers. 2. In this study, we first assessed how the removal of upper soil layers affected the assemblage of dung beetle compared to adjacent reference areas without soil removal. We also evaluated the efficiency of dung beetles as secondary seed dispersers by experimentally testing their effect on the germination of wolf apple seeds (Solanum lycocarpum). 3. Degraded areas harboured a different dung beetle assemblage compared to the reference area, with a predominance of habitat generalist species. In addition, we found higher abundance and richness of dung beetles in the degraded than in reference areas. Despite dung removal being similar between areas, more seeds were removed in the reference area. 4. Dung beetles, especially rollers, positively influenced the probability of wolf apple seed germination in the degraded environment by up to 5%; germination occurred in 27% of treatments with dung beetle presence and no germination occurred when beetles were excluded. 5. Therefore, promoting the attraction of dung beetles from reference areas, together with other techniques that enhance primary seed dispersion, mainly by mammals and birds, could potentially increase the success of projects to restore areas with degraded soil.
Ressignificando o excremento : como uma assembleia de besouros rola-bosta pode ajudar a restaurar áreas degradadas.
(2020) Almeida, Hernani Alves; Itabaiana, Yasmine Antonini; Silva, Wallace Beiroz Imbrosio da; Louzada, Júlio Neil Cassa; Silva, Pedro Giovâni da; Itabaiana, Yasmine Antonini
O Cerrado passa por diversas alterações antrópicas que ocasionam perda de vegetação nativa. Estas mudanças no uso do solo, podem interferir em vários atributos relacionados à comunidade. Os besouros coprófagos, conhecidos como rola-bosta, são sensíveis a estas alterações e ainda desempenham funções ecossistêmicas importantes que quando perdidas podem comprometer a qualidade e resiliência do ambiente. Nesse capítulo avaliamos qual a influência de uma área degradada na diversidade taxonômica, composição e estrutura de uma assembleia de besouros rola-bosta, além de suas funções ecossistêmicas. Capturamos 7716 indivíduos em 22 pontos de amostragem, representados por 18 gêneros e 41 espécies. A abundância e riqueza média foram maiores na área degradada. A estrutura da assembleia diferiu entre as duas áreas, sendo o principal fator a compactação e granulometria do solo, que gerou um filtro ambiental forte capaz de interferir diretamente na assembleia. Houve ainda, perda de função ecossistêmica, dispersão secundária de sementes, com a degradação do ambiente. Concluímos que mesmo apresentando a média de diversidade taxonômica maior na área degradada, ocasionada possivelmente por algumas espécies suportarem condições limitantes, houve perda de função importante, capaz de comprometer o equilíbrio ambiental e ainda a houve a separação e simplificação da assembleia com a perda de habitat.