{"id":256851,"date":"2020-06-02T09:10:19","date_gmt":"2020-06-02T13:10:19","guid":{"rendered":"https:\/\/canadianinquirer.net\/v1\/?p=256851"},"modified":"2020-06-02T09:10:19","modified_gmt":"2020-06-02T13:10:19","slug":"native-brazilian-bees-benefit-agriculture-but-agriculture-kills-them","status":"publish","type":"post","link":"https:\/\/canadianinquirer.net\/v1\/2020\/06\/02\/native-brazilian-bees-benefit-agriculture-but-agriculture-kills-them\/","title":{"rendered":"Native Brazilian bees benefit agriculture, but agriculture kills them"},"content":{"rendered":"<figure id=\"attachment_256852\" aria-describedby=\"caption-attachment-256852\" style=\"width: 720px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/canadianinquirer.net\/v1\/wp-content\/uploads\/2020\/06\/720px-Meliponula_ferruginea.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-256852\" src=\"https:\/\/canadianinquirer.net\/v1\/wp-content\/uploads\/2020\/06\/720px-Meliponula_ferruginea.jpg\" alt=\"\" width=\"720\" height=\"1081\" srcset=\"https:\/\/canadianinquirer.net\/v1\/wp-content\/uploads\/2020\/06\/720px-Meliponula_ferruginea.jpg 720w, https:\/\/canadianinquirer.net\/v1\/wp-content\/uploads\/2020\/06\/720px-Meliponula_ferruginea-200x300.jpg 200w, https:\/\/canadianinquirer.net\/v1\/wp-content\/uploads\/2020\/06\/720px-Meliponula_ferruginea-682x1024.jpg 682w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/a><figcaption id=\"caption-attachment-256852\" class=\"wp-caption-text\">FILE: A Stingless bee, Meliponula ferruginea. App 7mm long. Pictured in Dar es Salaam, Tanzania (<a href=\"https:\/\/commons.wikimedia.org\/w\/index.php?curid=9580276\">Photo By Muhammad Mahdi Karim &#8211; Own work, GFDL 1.2<\/a>)<\/figcaption><\/figure>\n<div class=\"bulletpoints\">\n<ul>\n<li><em>Native Brazilian bees provide several environmental services, the most important being pollination of plants, including agricultural crops.<\/em><\/li>\n<li><em>Stingless beekeeping also helps to keep the forest standing, as honey farmers tend to preserve the environment and restore areas used in their activity.<\/em><\/li>\n<li><em>But food production based on monoculture and heavy on pesticide use is threatening native bee populations.<\/em><\/li>\n<li><em>The western honey bee (Apis mellifera), an imported species, dominates Brazil\u2019s beekeeping and its research into the harmful effects of pesticides; but studies show that pesticides affect stingless bees more intensely.<\/em><\/li>\n<\/ul>\n<\/div>\n<p>When we think of bees, we don\u2019t always recognize the huge diversity of species they represent. Almost all the honey we consume comes from western honey bees (<em>Apis mellifera<\/em>), a hybrid of European and African species. But there are another 20,000 different bee species in the world. Brazil alone has more than\u00a0<a href=\"http:\/\/abelha.cria.org.br\/list\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">300<\/a>, and the vast majority, unlike western honey bees, don\u2019t sting. The country has the world\u2019s greatest diversity of this type of bee.<\/p>\n<p>The importance of Brazil\u2019s stingless bees is increasingly being acknowledged, since agricultural crops of high economic value depend on pollination by these insects. And beekeeping helps conservation: Keepers of\u00a0<em>Melipona<\/em>, a genus of stingless bees, usually preserve local ecosystems and restore areas used in their activity, since native Brazilian bees depend on a healthy habitat to reproduce.<\/p>\n<p>\u201cTheir appreciation is on the rise. Places that maintained the culture of native beekeeping can now make this an alternative for income generation,\u201d says Jer\u00f4nimo Villas-B\u00f4as, author of a manual that addresses practices associated with stingless beekeeping in Brazil.<\/p>\n<p>In the fine dining sector, Brazilian honey has already reached the\u00a0<a href=\"http:\/\/apicultura.to.gov.br\/?p=215\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">kitchens of well-known chefs<\/a>, including Alex Atala, whose S\u00e3o Paulo restaurant has two Michelin stars.<\/p>\n<p>Products from Brazilian bees \u2014 honey, propolis, pollen, wax and royal jelly \u2014 have been known for centuries. Reports written in 1577 by Hans Staden, who lived among the Tupinamb\u00e1 people on the coast of what is today S\u00e3o Paulo state, mention three native bees used by indigenous people for medicine and food purposes \u2014 probably\u00a0<em>manda\u00e7aia<\/em>\u00a0(<em>Melipona quadrifasciata<\/em>),\u00a0<em>mandaguari<\/em>\u00a0(<em>Scaptotrigona postica<\/em>) and\u00a0<em>jata\u00ed-amarela<\/em>\u00a0(<em>Tetragonisca angustula<\/em>).<\/p>\n<p>\u201cFor my doctoral thesis, I tested honey from three stingless bee species: jata\u00ed,\u00a0<em>canudo<\/em>\u00a0[<em>Scaptotrigona depilis<\/em>] and\u00a0<em>bor\u00e1<\/em>\u00a0[<em>Tetragona elongata<\/em>]\u201d, says Raoni da Silva Duarte, who has a Ph.D. in entomology from the University of S\u00e3o Paulo (USP). \u201cDuring in vitro tests, the honeys had antimicrobial effects against several pathogens that may cause diseases in humans.\u201d<\/p>\n<p>Native beekeeping is currently expanding in Brazil, for purposes ranging from scientific research to community-based honey production, with several benefits. \u201cBeekeepers seek areas with preserved vegetation,\u201d Villas-B\u00f4as says. \u201cStingless beekeeping enables us to conserve the species involved and, indirectly, other animals in the ecosystem such as birds and mammals.\u201d<\/p>\n<h3><strong>Pollination: Work worth billions<\/strong><\/h3>\n<p>According to the U.N. Food and Agriculture Organization (FAO), more than 75% of crops intended for human consumption depend on pollination.<\/p>\n<p>Most plant species, whether cultivated or native, are pollinated by animals such as bats, moths, butterflies, wasps, beetles \u2014 and mainly bees. The\u00a0<a href=\"https:\/\/www.bpbes.net.br\/en\/\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">Brazilian Platform for Biodiversity and Ecosystem Services<\/a>\u00a0(BPBES) estimates the value of the environmental pollination service for food production in the country at about 43 billion reais ($8 billion) per year, accounting for 44 cultivated and wild plants.<\/p>\n<p>Certain plant species are pollinated only by Brazilian stingless bees. \u201cThey are chiefly responsible for pollinating native vegetation, providing cross-fertilization, which guarantees variability in plant species,\u201d says Generosa Sousa Ribeiro, from the Melipona Beekeeping Department at the State University of Southwest Bahia (UESB). \u201cSeveral plants need native species. For instance, the acerola cherry depends on solitary bees of the\u00a0<em>Centris\u00a0<\/em>genus.\u201d<\/p>\n<p>Evidence shows that establishing stingless bee colonies in agricultural areas has positive effects on production of coffee, canola, guava, apple, passion fruit, cucumber and oil palm, among other crops. For strawberry, pollination by the\u00a0<em>ira\u00ed<\/em>\u00a0bee (<em>Nannotrigona testaceicornis<\/em>) reduces fruit deformation. And a study shows that the\u00a0<em>uru\u00e7u-nordestina<\/em>\u00a0bee (<em>Melipona scutellaris<\/em>) plays a major role in orange tree pollination.<\/p>\n<p>\u201cThe more we know about Brazilian stingless bees, the more important they become,\u201d says Juliana Feres, a researcher and founding partner of\u00a0<a href=\"http:\/\/www.hebora.com.br\/\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">Hebor\u00e1<\/a>, a platform that focuses on improving production of Brazilian honey by rural women.<\/p>\n<p>Stingless bees also provide a specialized service known as buzz pollination. When they land on flowers, many species, whether social or solitary, can vibrate by contracting their thoracic muscles, thus releasing pollen from the flowers and benefiting crops such as tomatoes and eggplants.<\/p>\n<p>Nevertheless, native species are still underused. Western honey bees are still preferred not just to produce honey but also to supplement pollination of agricultural crops, because farmers are familiar with their management and their population is abundant. The\u00a0<a href=\"https:\/\/www.bpbes.net.br\/en\/produto\/relatorio-tematico-de-polinizacao-polinizadores-e-producao-de-alimentos\/\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\"><em>Thematic Report on Pollination, Pollinators and Food Production in Brazil<\/em><\/a>\u00a0shows the dangers of generalizing: several crops need specific pollinators.<\/p>\n<h3><strong>Threats in the air<\/strong><\/h3>\n<p>However, native stingless bees face a paradox: while they are important for agricultural activity, they are threatened by agriculture itself. \u201cOur food production system is the main reason why bees are disappearing,\u201d Villas-B\u00f4as says. \u201cPlant suppression affects their natural habitat. In addition, uniform landscapes do not provide the diverse diet that insects need. To make matters worse, there is abusive use of pesticides.\u201d<\/p>\n<p>When pesticides do not kill, they may decrease the longevity of bees, hamper their ability to return to the hive, interrupt the laying of eggs by the queen, prevent communication, disrupt work organization and division, and paralyze wings and legs, among other harmful effects that end up weakening or even decimating the hive.<\/p>\n<p>\u201cThe populations [of stingless species] are much smaller than those of\u00a0<em>A. mellifera<\/em>, which makes it difficult to reorganize these bees after continued spraying. In 2017, we collected samples in areas of mass spraying, and we found more than 10 pesticides that were lethal for native bees,\u201d says Ribeiro from UESB.<\/p>\n<p>Western honey bees are a priority in agrochemical tests conducted in Brazil, based on OECD protocols. However, some studies already show that stingless bees are more sensitive to pesticides than the ubiquitous western bees. \u201cThere are still few results, given the very\u00a0<a href=\"https:\/\/news.mongabay.com\/2019\/08\/half-a-billion-bees-dead-as-brazil-approves-hundreds-more-pesticides\/\" data-wpel-link=\"internal\">serious damage<\/a>\u00a0that poisons have been causing to pollinators in recent decades,\u201d Ribeiro says.<\/p>\n<p>A 2018 publication by Brazil\u2019s environmental protection agency, known as IBAMA, calls for\u00a0<a href=\"https:\/\/revistapesquisa.fapesp.br\/en\/2019\/11\/14\/stingless-and-highly-sensitive\/\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">more specific studies<\/a>\u00a0that are not restricted to a single species.<\/p>\n<p>Other works have since followed. A\u00a0<a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0213109\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">study<\/a>\u00a0conducted by researchers at S\u00e3o Paulo State University (UNESP) and published in 2019 assessed the effect of dimethoate, which is used as an international reference in toxicity tests. It showed that the dosage to kill 50% of a population of uru\u00e7u-nordestina larvae is 320 times lower than the dosage that kills an equal percentage of\u00a0<em>A. mellifera<\/em>\u00a0larvae.<\/p>\n<p>Also in 2019, at the University of S\u00e3o Paulo\u2019s Luiz de Queiroz Higher School of Agriculture (Esalq-USP), another\u00a0<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0045653519303297\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">study<\/a>\u00a0showed that thiamethoxam, widely used in agriculture, and three other insecticides from the neonicotinoid group may cause behavioral changes in adult jata\u00ed bees, such as reducing flight speed and\u00a0 distance traveled.<\/p>\n<p>A 2016\u00a0<a href=\"http:\/\/www.revistacta.ufscar.br\/index.php\/revistacta\/article\/view\/21\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">article<\/a>\u00a0focused on\u00a0<em>S. postica<\/em>\u00a0showed that the active ingredient imidacloprid, used in insecticides, interferes with the behavior of that bee, affecting its ability to recognize food and restraining its movements in the field.<\/p>\n<p>An indicator of how serious the issue of pesticide use in agriculture is \u2014 and its harmful effects on human health and pollination \u2014 is the fact that imidacloprid continues to be found in tests performed on food samples under the\u00a0<a href=\"http:\/\/portal.anvisa.gov.br\/documents\/111215\/0\/Relat%C3%B3rio+%E2%80%93+PARA+2017-2018_Final.pdf\/e1d0c988-1e69-4054-9a31-70355109acc9\" target=\"_blank\" rel=\"external noopener noreferrer\" data-wpel-link=\"external\">Program for Analysis of Pesticide Residues on Food<\/a>\u00a0from Brazil\u2019s National Health Surveillance Agency (Anvisa). The latest edition of the report was published in December 2019.<\/p>\n<p>Loss of pollinators in an ecosystem may be irreversible, and nothing is known about the possibility of natural recolonization. \u201cBrazil\u2019s bees have co-evolved with its native flora for a long time,\u201d Duarte says. \u201cEach plant has adapted to the benefits that some species provided to its reproduction. At the same time, bees have adapted to specific resources such as nectar, pollen, oils and resins. In other words, Brazilian flora and native bees are highly dependent on each other.\u201d<\/p>\n<p>[This article was originally published at Mongabay. READ: <a href=\"https:\/\/news.mongabay.com\/2020\/06\/brazils-native-bees-are-vital-for-agriculture-but-are-being-killed-by-it\/\">Brazil\u2019s native bees are vital for agriculture, but are being killed by it<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Native Brazilian bees provide several environmental services, the most important being pollination of plants, including agricultural crops. Stingless beekeeping also &hellip;<\/p>\n","protected":false},"author":33,"featured_media":256852,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,17],"tags":[],"class_list":["post-256851","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news","category-news-w","mauthors-sibelia-zanon","mauthors-translated-by-roberto-cataldo","mauthors-mongabay"],"_links":{"self":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts\/256851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/comments?post=256851"}],"version-history":[{"count":1,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts\/256851\/revisions"}],"predecessor-version":[{"id":256853,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/posts\/256851\/revisions\/256853"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/media\/256852"}],"wp:attachment":[{"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/media?parent=256851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/categories?post=256851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/canadianinquirer.net\/v1\/wp-json\/wp\/v2\/tags?post=256851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}