The Dependence of Crops for Pollinators and the Economic Value of Pollination in Brazil

Giannini, Tereza Cristina; Cordeiro, Guaraci Duran; Freitas, Breno Magalhães; Saraiva, Antônio Mauro; Imperatriz-Fonseca, Vera Lúcia

doi:10.1093/jee/tov093

Cited by 228 publications

(199 citation statements)

References 33 publications

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“…1D), for each crop we rely on Klein et al (49) for estimates of pollinator dependence (Table S2). These estimates consist of simple percentages of yield and have been widely used in studies of pollination services (50,51). They also contain some uncertainty, however, because each percentage represents the midpoint of a range reported originally in Klein et al (49), whereas dependencies vary among crop varieties, climates, field settings, and cultivation practices.…”

Section: Discussionmentioning

confidence: 99%

Modeling the status, trends, and impacts of wild bee abundance in the United States

Koh

Lonsdorf

Williams

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

402

326

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Wild bees are highly valuable pollinators. Along with managed honey bees, they provide a critical ecosystem service by ensuring stable pollination to agriculture and wild plant communities. Increasing concern about the welfare of both wild and managed pollinators, however, has prompted recent calls for national evaluation and action. Here, for the first time to our knowledge, we assess the status and trends of wild bees and their potential impacts on pollination services across the coterminous United States. We use a spatial habitat model, national land-cover data, and carefully quantified expert knowledge to estimate wild bee abundance and associated uncertainty. Between 2008 and 2013, modeled bee abundance declined across 23% of US land area. This decline was generally associated with conversion of natural habitats to row crops. We identify 139 counties where low bee abundances correspond to large areas of pollinator-dependent crops. These areas of mismatch between supply (wild bee abundance) and demand (cultivated area) for pollination comprise 39% of the pollinator-dependent crop area in the United States. Further, we find that the crops most highly dependent on pollinators tend to experience more severe mismatches between declining supply and increasing demand. These trends, should they continue, may increase costs for US farmers and may even destabilize crop production over time. National assessments such as this can help focus both scientific and political efforts to understand and sustain wild bees. As new information becomes available, repeated assessments can update findings, revise priorities, and track progress toward sustainable management of our nation's pollinators.crop pollination | ecosystem services | habitat suitability | land-use change | uncertainty B ees and other flower-visiting animals provide essential pollination services to many US crops (1) and to wild plant species (2). Bees contributed an estimated 11% of the nation's agricultural gross domestic product in 2009 (3), equal to $14.6 billion per year (4). Of this, at least 20% ($3.07 billion) is provided by wild pollinators that depend on suitable land for nesting and foraging (5). As the consumption of specialty fruit and vegetable crops has grown (6), the demand for pollination services has increased. However, the supply of managed honey bees (Apis mellifera L.) has not kept pace (7), due to management challenges and colony losses over the last decade (8). There is growing evidence that wild, unmanaged bees can provide effective pollination services where sufficient habitat exists to support their populations (9, 10). They can also contribute to the long-term stability of crop pollination, thereby reducing the risk of pollination deficits from variable supply or activity of honey bees (11, 12). As a result, wild pollinators should be integrated into crop pollination management plans as a supplement or alternative to managed bees (13).Despite the agricultural importance of wild bees, there is increasing evidence that multiple species ...

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Section: Discussionmentioning

confidence: 99%

Modeling the status, trends, and impacts of wild bee abundance in the United States

Koh

Lonsdorf

Williams

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

402

326

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“…no Brasil -para uso na alimentação humana, produção animal, biodiesel e fibras -, aproximadamente 60% (85 espécies) dependem em certo grau da polinização animal (Giannini et al, 2015a). Estima-se que o valor econômico da polinização promovida por insetos corresponde a 9,5% do valor total da produção agrícola mundial, considerando-se a produção agrícola de 2005 de 100 culturas usadas diretamente para alimentação humana (Gallai et al, 2009).…”

Section: Weakness and Collapse Of Bee Colonies In Brazil: Are There Cunclassified

“…Estima-se que o valor econômico da polinização promovida por insetos corresponde a 9,5% do valor total da produção agrícola mundial, considerando-se a produção agrícola de 2005 de 100 culturas usadas diretamente para alimentação humana (Gallai et al, 2009). Levando-se em conta a produção agrícola brasileira de 2012, estimou-se o valor econômico da polinização para 44 culturas, que apresentam ganhos variados com a polinização animal, em aproximadamente 30% da produção total de 45 bilhões de dólares (Giannini et al, 2015a).…”

Section: Weakness and Collapse Of Bee Colonies In Brazil: Are There Cunclassified

Enfraquecimento e perda de colônias de abelhas no Brasil: há casos de CCD?

Pires

Pereira

Lopes

et al. 2016

Pesq. agropec. bras.

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Resumo -Nas últimas décadas, o declínio de populações de abelhas silvestres e o colapso de colônias de Apis mellifera têm preocupado pesquisadores e apicultores. O objetivo deste artigo de revisão foi compilar alguns dos estudos mais relevantes relacionados às possíveis causas desses problemas -como nutrição, manejo, patógenos, parasitas e efeitos de agrotóxicos -, além de apresentar um breve histórico da síndrome "colony collapse disorder" (CCD) nos Estados Unidos e na Europa. Abordaram-se com mais detalhes os estudos desenvolvidos no Brasil, principalmente sobre agrotóxicos utilizados na agricultura e patógenos e parasitas que acometem as colônias de A. mellifera africanizada. Casos de enfraquecimento, declínio e colapso têm sido registrados, principalmente nos estados de São Paulo e Santa Catarina, que somam grandes perdas. Resultados das ocorrências analisadas indicaram que as mortalidades em massa registradas no Brasil não estavam associadas a patógenos ou a parasitas. Somente dois casos com características semelhantes às descritas para CCD foram registrados, porém sem causas definidas. Para que se conheçam as causas de enfraquecimentos e perdas de colônias de abelhas, é urgente a implementação de programas oficiais de levantamento sistemático da sanidade apícola, associados a pesquisas com foco nas avaliações dos possíveis impactos da fragmentação de habitats e das práticas agrícolas sobre as comunidades de abelhas.Termos para indexação: Apis mellifera, abelha africanizada, distúrbio do colapso das colônias, nutrição de abelhas, patologia apícola, polinização. Weakness and collapse of bee colonies in Brazil: are there cases of CCD?Abstract -In the last decades, the decline of wild bee populations and the collapse of Apis mellifera colonies have concerned researchers and beekeepers. The objective of this review was to compile some of the most relevant studies related to the possible causes of these problems -such as nutrition, management, pathogens, parasites, and the effects of pesticides -, besides presenting a brief history of the colony collapse disorder syndrome (CCD) in the United States and Europe. The studies developed in Brazil were presented in more detail, mainly those on pesticides used in agriculture and on pathogens and parasites that attack the colonies of Africanized A. mellifera. Cases of weakening, decline, and collapse have been recorded in Brazil, mainly in the states of São Paulo and Santa Catarina, which add up to great losses. Results of the analyzed occurrences indicated that the recorded mass mortalities were not associated with pathogens or parasites. Only two cases with characteristics similar to those described for CCD were recorded, but without defined causes. In order to know the causes of the weakening and collapses of colonies, the implementation of official programs is urgent for the systematic survey of bee health, associated with research focusing on assessments of possible impacts of habitat fragmentation and agricultural practices on bee communities.

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“…As abelhas são os agentes polinizadores mais eficientes e, junto com os demais polinizadores, são responsáveis por 9,5% do montante financeiro da produção agrícola de alimentos em nível mundial (Gallai et al, 2009), além da produção de mel e outros produtos na apicultura. Giannini et al (2015) estimaram os serviços de polinização na produção do campo brasileiro, nas culturas dependentes de polinização, em cerca de U$ 12 bilhões do total de U$ 45 bilhões gerados.…”

Section: Introductionunclassified

Percepção ambiental de apicultores: Desafios do atual cenário apícola no interior de São Paulo

Cerqueira

Figueiredo

2017

Acta Bra.

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ResumoA mortalidade e o desaparecimento de abelhas têm sido cada vez mais frequentes no mundo, afetando consequentemente a atividade apícola que exerce significativa importância nos âmbitos ambiental, social e econômico no Brasil. O objetivo dessa pesquisa foi compreender os principais desafios que a apicultura enfrenta atualmente na perspectiva dos apicultores da região de Matão, interior de São Paulo. Os apicultores foram selecionados por meio da técnica "bola de neve" e participaram da uma entrevista semiestruturada que abordou as esferas social, econômica e ambiental da atividade apícola. A percepção dos apicultores foi analisada através da Análise Textual Discursiva e indicou o atual sistema de produção agrícola, baseado em extensas áreas de monoculturas e uso intensivo de agrotóxicos, como o principal problema enfrentado para manutenção da atividade. Os apicultores percebiam o ambiente considerando o ser humano como parte integrante da natureza, sendo este afetado por suas próprias ações. Tinham a percepção do importante papel das abelhas no equilíbrio do ecossistema e na produção de alimentos. Os relatos apresentados demostram preocupação com a saúde ambiental, enfatizando a falta de comprometimento do governo com a preservação dos recursos naturais e em prol de um sistema de produção agrícola e industrial insustentável.Palavras-chave: apicultura, meio ambiente, produção agrícola, produção de mel. Environmental perception of beekeepers: Challenges of the current beekeeping scene in the interior of São PauloAbstract Mortality and the disappearance of bees have been increasingly frequent in the world, consequently affecting the beekeeping activity that has significant importance in the environmental, social and economic spheres in Brazil. The objective of this research was to understand the main challenges that beekeeping currently faces from the perspective of beekeepers in the region of Matão, in the interior of São Paulo. The beekeepers were selected through the "snowball" technique and participated in a semi-structured interview that addressed the social, economic and environmental spheres of beekeeping. The perception of beekeepers was analyzed through Discursive Textual Analysis and indicated the current system of agricultural production, based on extensive areas of monocultures and intensive use of pesticides, as the main problem faced to maintain the beekeeping activity. The beekeepers perceived the environment considering the human being as an integral part of nature, being affected by their own actions. They were aware of the important role of bees in the balance of the ecosystem and in the production of food. The reports presented demonstrate the real concern with environmental health, emphasizing the government's lack of commitment to the preservation of natural resources in favor of a self-destructive agricultural and industrial production system.

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The Dependence of Crops for Pollinators and the Economic Value of Pollination in Brazil

Cited by 228 publications

References 33 publications

Modeling the status, trends, and impacts of wild bee abundance in the United States

Modeling the status, trends, and impacts of wild bee abundance in the United States

Enfraquecimento e perda de colônias de abelhas no Brasil: há casos de CCD?

Percepção ambiental de apicultores: Desafios do atual cenário apícola no interior de São Paulo

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