Alexandre Schiavetti

• PhD
• Professor (Full) at State University of Santa Cruz

Five out of seven Brazilian endemic parrotfish species are classified as threatened, but little is known about the evolution of their fisheries over time and their systematic monitoring is nearly absent. Local ecological knowledge was employed to examine the historical trends in Brazilian parrotfish fisheries and to capture fishers’ perceptions of...

Roadkill is responsible for a great loss of biodiversity and, therefore, identifying roadkill hotspots is necessary to install mitigation structures. Here, we aimed to analyze roadkill hotspots along a highway in the Brazilian Savanna (Cerrado) and evaluate how landscape and highway characteristics influence roadkill rates among different taxonomic...

O estudo analisou a influência dos episódios de El Niño e La Niña, sobre o índice de perigo de incêndios florestais nas Unidades de Conservação (UCs) do Corredor Central da Mata Atlântica (CCMA) entre 2001 e 2019. Utilizando cinco variáveis meteorológicas (chuva, temperatura média do ar, umidade relativa do ar, evapotranspiração e velocidade do ven...

Roadkill poses a critical threat to wildlife and can cause the extinction of local populations. In this context, analyzing roadkill patterns could provide valuable insight into the severity of the threat, particularly in protected areas. We collected roadkill data for 16 months around the Chapada Diamantina National Park (PNCD) in Bahia, Brazil, to...

Coral reefs and associated habitats, such as mangroves, seagrass beds, and rhodolith beds, provide vital ecosystem services but are among the most threatened marine areas. This has led to a decline in the abundance of many reef-associated organisms, particularly coral reef fish. Understanding the dynamics of settlement and recruitment in reef fishe...

Functional diversity (FD) is one of the aspects of biodiversity that can best represent eventual changes in the environment. Marine Protected Areas (MPAs) can be used to minimize the potential impacts of fishing on fish stocks. The objective of this study was to evaluate the role of the MPA network in the Abrolhos Bank (Brazil) in relation to the F...

A Ciência Cidadã é uma iniciativa que surgiu há apenas duas décadas, sendo considerada recente e com poucos estudos no Brasil quando comparado com outros países. Algumas pesquisas já têm abordado o potencial da CC como contribuinte para o volume de dados nos estudos sobre conservação, mas ainda se faz necessário discutir melhor sua perspectiva educ...

Fluctuations in reef fish settlement and recruitment significantly impact local population dynamics and adult population size. We use light traps to evaluate reef fish settlement in inshore and offshore reefs in the Abrolhos Bank, in addition to the spatio-temporal distribution patterns, and environmental variables' influence. Data were collected f...

Roads are responsible for great biodiversity loss, especially in protected areas (PAs). Thus, considering the great risk of roads to PAs and the lack of knowledge about these areas, we aimed to analyze the scientific production on wildlife roadkill in Brazil and compare the studies that surveyed roads with and without PAs. We searched for papers in...

Callithrix kuhlii is present in forest mosaics, edge habitats, and abandoned fields in the Atlantic Forest. In Bahia and Minas Gerais. This study aimed to identify helminths from C. kuhlii and relate them to the clinical data, weights, and indices of the liver and gonads. Necropsies were performed on 13 adult marmosets that were run over on the BA-...

Marine protected areas (MPAs) are territorial management instruments aimed at conserving ecosystem services, natural resources, protecting habitats, recovering degraded areas and safeguarding associated cultural values. Integrating MPAs into networks has been increasingly recognized as a more effective and successful approach to achieve their goals...

The current investigation aimed to identify the wild animals utilized as a food source in five locations within the Serra do Conduru State Park region, Bahia, Brazil. The field survey was conducted from June 2016 to July 2017, involving semi-structured interviews and informal conversations with 45 hunters. The composition of species used for susten...

Anthropogenic actions have direct and indirect impacts on natural systems, leading to significant alterations in marine ecosystems worldwide. One of the most notable problems is species loss, as the disappearance of species from an area can compromise ecological functions. This is at the core of a severe biodiversity crisis. To address and reverse...

Conflicts between humans and wildlife are increasing in many parts of the world. In southern Brazil, South American sea lions (Otaria flavescens) interact with commercial fisheries, which can result in retaliation by fishermen. In order to understand the factors that may influence the behaviour of fishermen towards sea lions, interviews were carrie...

Brazilian coral reefs are the largest and richest reefs in the Southwestern Atlantic Ocean. Despite their historical and tourist importance, coral reefs on the east coast of Brazil remained unknown until recently. This study evaluated the structure of the reef-building coral community in three tidal pools along a gradient of anthropogenic disturban...

Introduction: Reintroduction is a procedure used to reestablish wild animal populations. Objective: The present study aimed to evaluate the success of reintroducing Amazona aestiva and investigate whether abiotic factors (temperature, humidily, and luminosity) interfere with the search for food supplementation in feeders installed in the release ar...

As unidades de conservação são essenciais para a manutenção da estabilidade climática global. Além disso, a gestão sustentável e participativa das UCs pode promover a subsistência de milhares de pessoas que vivem no entorno ou mesmo dentro das referidas áreas, reduzindo os enfrentamentos, a degradação e incluindo as populações tradicionais nos proc...

Successful settlement and recruitment of reef fish are influenced by spatial and temporal processes and variables on distinct scales. Moreover, they require survival at various stages in different environments for species with a complex life cycle, as in the case of most reef fish. The variability in those processes can be explained by biotic and a...

The seasonal occurrence of S. guianensis was analyzed in the port of Malhado, Ilhéus, Bahia, Brazil. The survey was conducted through an electronic theodolite, between December 2008 and November 2009, totaling 358.3 hours of sampling effort and 173.8 hours of effective sightings. The number of individuals, size and composition of the groups, time o...

As unidades de conservação são essenciais para a manutenção da estabilidade climática global. Além disso, a gestão sustentável e participativa das UCs pode promover a subsistência de milhares de pessoas que vivem no entorno ou mesmo dentro das referidas áreas, reduzindo os enfrentamentos, a degradação e incluindo as populações tradicionais nos proc...

The presence of domestic animals in the wilderness has a negative effect on wildlife populationsor; for instance, in addition to habitat loss, urbanization, and coastal light pollution, sea turtles also suffer from another threat: the predation of their eggs, hatchlings, and even female nesters by domestic, feral, and/or wild animals. Domestic dogs...

Effective implementation of Marine Protected Areas (MPA) networks depends on social participation into management. In this study, a multilayered network analysis was used to understand patterns of social participation in MPA management in Brazil. To this end, managers were invited to answer an online questionnaire about interaction with social acto...

This study evaluates the reproductive and ecological similarity between loggerhead sea turtle (Caretta caretta) and Hawksbill sea turtle (Eretmochelys imbricata) two species of sea turtles on the southern coast of Bahia (Brazil) during two breeding seasons (October to April 2013 to 2015). The study covers a 10-km area composed of three beaches, Pom...

Tropical forests stand out among forest domains, due to their wide diversity of flora and fauna. However, these areas concentrate a large number of the forest fires that occur annually on the planet. In this context, the present study performs spatial modeling of the normalized multi-band drought index (NMDI) in the Central Atlantic Forest Corridor...

Marine mammals provide diverse and interconnected ecosystem services. According to the literature, the use of these services is associated with human needs related to provision, ecosystem regulation, education, culture, spirituality, and recreation. Tourism with marine animals can provide psychological benefits, emotional connection, fun, and learn...

This paper proposes research priorities on the coastal ecosystems of the East-Northeastern region of Brazil (State of Bahia), based on an overview of the global changesrelated impacts disturbing these ecosystems. We use data on reef monitoring, sea surface temperatures, fisheries and public policies related to marine and natural resources conservat...

The Brazilian National System of Conservation Units (SNUC) has a wide spectrum of conservationist strategies, so that often the choice of a protected area typology is not adequate to the proposed conservation objectives. The recategorization of a Conservation Unit (CU) is a legal and widely used procedure to resolve conflicts of interest that exist...

Ecosystem services are the benefits we derive from the ecosystems we occupy. These services are related to biodiversity and this interaction ensures the functioning of the processes necessary for their own maintenance. The aim of this study was to identify the perception of ecosystem services associated with West Indian manatee (Trichechus manatus)...

Este artigo mostra de forma objetiva o surgimento da Lei 6.938 de 1981 da Política Nacional do Meio Ambiente (PNMA) que completou 40 anos de vigência em 2021, sendo um marco histórico na Gestão ambiental do país e os desafios enfrentados ao longo do tempo para alcançar o desenvolvimento sustentável. O artigo busca responder a seguinte questão, quai...

The extensive oil spill (> 2,900 km) that occurred in the southwestern Atlantic (2019/2020) increased the vulnerability of the Brazilian coast, affecting marine and coastal protected areas (MPAs). In addition to supporting conservation, MPAs are sustainably used by local populations to help maintain ocean-dependent livelihoods. In this sense, we ai...

Studies that compile local ecological knowledge (LEK) on some of the various species of living beings observe biological data and are notably fundamental for effectively managing fisheries, supporting management strategies for protected areas, species conservation, and other factors. In this study, ethnoecological approaches were used to focus on t...

Background Illegal capture and trade of wild birds are some of the most present types of wildlife trade in Brazil, and are often associated with cultural and socioenvironmental aspects. Those habits are particularly present in rural communities, where bird trade can be a source of income in dire economic situations and bird-keeping is a cultural tr...

Historical information on cockle landings and studies on local knowledge on cockle fishing, zoology, and ecology in the Ria de Aveiro remain incomplete. Due to the COVID-19 pandemic and the current conditions of artisanal fisheries in Europe, understanding the dynamics of this activity has become even more necessary. Therefore, this case study soug...

O objetivo foi reunir resultados importantes de pesquisas realizadas no Brasil, que contribuíram de forma significativa para aumentar o conhecimento sobre sua biologia e seu grau de ameaça, auxiliando na identificação de medidas que possam diminuir sua mortalidade, seja em Planos de Ação, ou nas ações institucionais das diversas universidades e ONG...

Após 20 anos de negociações diplomáticas, foi firmado as bases para o acordo de integração econômica entre o Mercado Comum do Sul (Mercosul) e a União Europeia (UE). Em 28 de junho de 2019, concluíram-se, em Bruxelas, as tratativas de um Acordo de Associação que prevê a implantação de uma zona de livre comércio compreendendo os dois blocos. Dentre...

We present an important event not yet reported of accidental death by burying Podocnemis expansa by grounding caused by other breending females. This event possibly occurred during the previous night, during the spawning peak activity on this beach with approximately 1,500 spawns, many of them overlapping. Any predatory event was not considered, as...

Background: Illegal capture and trade of wild birds are some of the most present types of wildlife trade in Brazil, and are often associated with cultural and socioenvironmental aspects. Those habits are particularly present in rural communities, where bird trade can be a source of income in dire economic situations and bird-keeping is a cultural t...

Trazer de uma forma unificada, informações que envolvam tantos atores diferentes foi um dos grandes desafios do conteúdo deste texto. Quando tratamos do consumo consciente e responsável, acreditamos que não basta tratar apenas do comércio do pescado, mas precisamos trazer para o tema todos os assuntos transversais a ele. E este foi o se- gundo desa...

Fire is one of the main disturbances of tropical forests. Understanding the spatial and temporal dynamics of forest fires is of fundamental importance for the conservation of tropical forests. We used a frequency ratio model to identify those areas most susceptible to forest fires in the Central Corridor of the Atlantic Forest, from 2001 to 2019. W...

Fatores de ameaça são perturbações que tornam as espécies vulneráveis à extinção em seus habitats naturais. A proposição de ações conservacionistas à biodiversidade requer o conhecimento das ameaças às espécies em questão. O Espinhaço mineiro é reconhecido por sua biodiversidade florística e alto endemismo e, a ocupação humana ocorre devido à miner...

Marine protected areas (MPAs) are essential tools for managing marine resources, but their effectiveness depends on the involvement of local communities and appropriate government policies. The present study sought to verify and compare the existence of Ostrom's principles in the Recife de Fora Marine Park (“RFMP”) and the Coroa Alta Marine Park (“...

O sul da Bahia apresenta importantes remanescentes do bioma da Mata Atlântica. Existem duas formas de preservá-las, através das unidades de conservação e também pelo sistema de produção de cacau (Theobroma cacao). Este último funciona sob as árvores nativas do bioma e enfrentou uma grave crise, que começou em meados da década de 1980 pela tendência...

The aim of this study was to analyze the oceanic recreational fishing in the Royal Charlotte Bank, state of Bahia, Brazil. Only data from an oceanic recreational fishing operator based in the municipality of Canavieiras, southern Bahia, were used, from 2012 to 2017. Overall, 103 fish specimens were caught and released, during this period, belonging...

The Turquoise-fronted Amazon Amazona aestiva is one of the most extensively poached species as a result of illegal trade in Brazil. Reintroduction programs have been increasingly used in the management of these animals in captivity. Several preparatory procedures should be carried out during the pre-release period to characterize the group of anima...

Local knowledge is a fundamental source of information for starting spawning aggregation studies in areas where this phenomenon is still unknown or little studied. Among the species that present this reproductive strategy, groupers and snappers represent two of the most relevant components of artisanal and commercial capture worldwide and are highl...

Shallow-water marine invertebrate fauna is diverse in tropical latitudes but generally poorly known. This is in part due the remoteness of many of these regions, and a lack of locally trained taxonomists. In such cases, the ethnoknowledge (i.e., information acquired from the sociocultural references of a given social group) of traditional human pop...

Monitoring surveys provide data needed to assess ecosystem conditions in places where bioinvasion occurs. The collection of data by volunteer researchers (citizen science) is an alternative for scientists and research agencies that lack information but do not have sufficient financial resources. The objective of the study was to evaluate the potent...

This study presents the first considerations and observations of the occurrence of the octopus Callistoctopus sp. on the coast of Brazil. Citizen science, used as a research approach, was fundamental to confirm the presence and delimit the distribution of this species on the Brazilian coast. In all, 187 interviews were conducted with octopus fisher...

The purpose of this study was to clarify what archaeologist Dr. Niède Guidon represents for the Serra da Capivara National Park based on the perspective of the park’s guides, fifty of whom participated in the highly specific qualitative focal study through semi-structured interviews. We found that 40 (80 %) of the guides interviewed recognize Dr Gu...

The Jequiá da Praia Marine Extractive Reserve (REM) - Alagoas, was created to ensure sustainable use and conservation of renewable natural resources, protecting the livelihoods and culture of the local extractive population. In order to describe the fishing activities in the REM lagoon portion, 80 fishermen were interviewed about three central them...

Os mitos envolvendo as serpentes, quando associados à falta de conhecimento sobre a importância ecológica e socioeconômica desse grupo, pode potencializar a biofobia, causando o extermínio da ofidiofauna, afetando assim a biodiversidade. Nesse contexto, a Educação Ambiental se destaca como ferramenta de construção do conhecimento e sensibilização n...

Este livro teve o objetivo de reunir resultados importantes de pesquisas realizadas no Brasil, que contribuíram de forma significativa para aumentar o conhecimento sobre sua biologia e seu grau de ameaça, auxiliando na identificação de medidas que possam diminuir sua mortalidade, seja em Planos de Ação, ou nas ações institucionais das diversas univ...

A pesca esportiva marinha no Brasil está em expansão. Apesar de aparentemente menos impactante que outras modalidades de pesca, conhece-se seu potencial efeito negativo às populações-alvo, como também ao ecossistema. A regulamentação da pesca esportiva pode ser um ponto inicial, para que a mesma seja realizada de forma ordenada e sustentável. O pre...

The components of interpretation and education in whale/dolphin watching tours, besides providing leisure to the participants, are involved in the satisfaction and creation of an environmental awareness. This study aimed to understand the perception, learning and tendency to conservation attitudes of the participants of dolphin-watching in Fernando...

Over the last decade, there has been a change in the way protected areas are managed across the world, as their management gradually ceases to be the sole responsibility of the government and is being shared with civil society. This study evaluates the management effectiveness, according to the managers and management boards of 20 marine protected...

Background: The consumption of wild animals through hunting performs an essential role in human eating habits in different tropical areas. However, the frequent and consistent use of hunting is indicated as one of the main causes of extinction and/or population decline in various species. Thus, the present study aimed to identify the wild animals u...

Understanding the environmental and anthropogenic factors that affect nesting site selection by sea turtles is key to maintaining priority conservation areas. The species Lepidochelys olivacea, Caretta caretta, and Eretmochelys imbricata nest annually on the island of Comandatuba (Una, northeastern Brazil), where this survey was conducted. We evalu...

The local ecological knowledge about Mazama gouazoubira was investigated in communities adjacent to the Environmental Protection Area Chapada do Araripe, Brazil. A total of 35 people were interviewed using the snowball technique. For analysis, data were categorized on local ecological knowledge, hunting method and perception of availability. M. gou...

The fishes of the Lutjanidae family are widely distributed throughout the Atlantic, Indian and Pacific Oceans and have relevant commercial importance. Yellowtail snapper (Ocyurus chrysurus) is a targeted species in the small­scale fishery of the northeastern coast of Brazil, notably for hand­line fishing. We used the local ecological knowledge (LEK...

To better understand the threats posed by human activities on cetaceans, we compiled published studies and determined where, how, and by whom the research on this subject has been conducted in Brazil. We also determined which cetacean species were mostly investigated in these studies. We gathered the available scientific literature published from 1...

Wild and domestic animals and their by-products are important ingredients in the preparation of medicines traditionally used in folk medicine, present in various human cultures since antiquity. However, the decline in the number of species in neotropical regions as a result of hunting for various purposes, including food, medicine and magico-religi...

This study aimed to identify ethnozoological knowledge about amphibians of people living around a protected area, the Wildlife Refuge of Una (REVIS), located in the Atlantic Forest, in southern Bahia, Brazil. Semi-structured interviews were performed on a random sample of residents right outside the REVIS limits. Photos of several amphibians that l...

1. Increasing evidence has revealed that different fisheries have collapsed around the world. This is generally more evident in countries that can maintain long-term research and fisheries monitoring. When monitoring data are not available, alternative approaches to assess fisheries trends can be used, such as the local ecological knowledge of fish...

Introducción El conocimiento ecológico local (CEL) es una herramienta que puede ofrecer valiosas informaciones sobre la historia de vida, ecología y biología de los organismos vivos. Este trabajo tuvo como objetivo la construcción de mapas georreferenciados que indiquen las áreas prioritarias para la conservación de las agregaciones reproductivas d...

Atividade pesqueira no sul da Bahia, Brasil: características socioeconômicas e conflitos socioambientais O Território Litoral Sul da Bahia é banhado por cerca de 250 quilômetros de costa atlântica, onde a pesca ocorre com maior intensidade. Embora seja relevante para as comunidades locais, denota-se a escassez de informações que demonstrem os aspec...

In Brazil, 64 recovery plans are currently focused on single or multiple species. We aimed to evaluate whether there is a difference in effectiveness and efficiency in the implementation of the two types of animal protection plans. We selected 16 plans, eight of each type. In addition, we analysed which of the 12 operational attributes of elaborati...

Este estudo analisa os processos participativos no âmbito da Reserva Extrativista de Canavieiras (Resex), unidade de conservação de uso sustentável situada na zona costeira do sul da Bahia e pertencente ao bioma marinho. A Resex de Canavieiras foi criada em 2006 e possui histórico de conflitos sociais desde o processo de sua criação. Neste estudo,...

The local ecological knowledge (LEK) of fishermen has been applied to reconstruct temporal patterns of resource abundance and to assess resource exploitation, especially in tropical ecosystems. Protected areas (PAs) are the main conservation measure in the Amazon, but their efficacy to improve fisheries is poorly known. The main goal of this study...

- There is little Brazilian literature on threats to cetacean; - Almost half of the publications have some international collaboration; - Half of the study areas are concentrated in only three of the 16 Brazilian states; - Depletion of fish stock, noise pollution and rubbish ingestion are themes that require further studies; - Threats to 20 spe...

The implementation of marine protected areas (MPAs) is an important conservation strategy but in spite of the generated benefits, many of these areas are targets of criticism because they also generate negative social, economic and cultural impacts on local communities. When not properly handled, these conflicts can undermine preservation objective...

Este artigo tem como objetivo geral, analisar o Geossistema do Museu Aberto do Descobrimento, de forma a medir sua vulnerabilidade ambiental. Especificamente, caracterizar o meio biótico, físico e socioeconômico; elaborar um mapa de vulnerabilidade ambiental relativa e sugerir mudanças de usos com base na Política Nacional sobre Mudanças do Clima....

Background Traditional raft (jangada), piúba wood raft (jangada de pau de piúba), six-log raft (jangada de seis paus), and wooden raft (jangada de pau) are some of the names given to the traditional Brazilian watercrafts created from the buoyancy of bound logs. The traditional raft is a watercraft used and built by artisan fishermen who have, throu...

In this study, we recognise the current physiographic characteristics of the Recife de Fora Marine Park (Royal Charlotte Bank, eastern Brazil) and describe the spatial pattern of the benthic community through reef habitats. Benthic assemblages differed from sectors and habitats, showing a marked coastal oceanic gradient. The results indicate that l...

Resumo O artigo tem o objetivo de analisar a aplicabilidade do ordenamento jurídico pátrio no que se refere à legitimidade, tendo como foco a participação popular, para a criação e gestão da Reserva Extrativista de Canavieiras. A motivação deste estudo encontra-se alicerçada na política mundial para a conservação do bioma costeiro/marinho, que cons...

Coral reef-based tourism has risen sharply across the globe, coupled with an increase in fish feeding by visitors. Studies indicate that fish feeding is one of the leading causes of changes in distribution patterns, abundance, the structure of marine fish communities, and fish behavior. The aim of this study was to determine the effect of human pre...

Este estudo investigou o perfil sociodemográfico, acadêmico e profissional de condutores de trilha de longa duração (TLD) em Parques Nacionais (PARNAs) brasileiros. Entrevistaram-se 39 condutores do Parque Nacional do Caparaó (PNC) e 40 do Parque Nacional da Serra da Capivara (PNSC). Verificou-se que a maioria dos condutores é do sexo masculino (88...

In Brazil, the whale watching is practiced with different species, such as whales, dolphins, and porpoises. This activity facilitates the growth of the economic activities of communities in many regions of the country, and it may be a tool for awareness about the marine preservation and conservation. Moreover, the whale or dolphin watching also imp...

Boat engines increase the noise levels of the oceans, alter the acoustic environment of cetaceans and diminish their efficiency to echolocate. This study aims to determine if Guiana dolphins (Sotalia guianensis) are influenced by boat approaches. A land-based survey was conducted to record behavioral responses and count surfacing events of Guiana d...