Forests are critically important to global pollinator diversity and enhance pollination in adjacent crops

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2023, Volume and Issue: 98(4), P. 1118 - 1141

Published: March 6, 2023

ABSTRACT Although the importance of natural habitats to pollinator diversity is widely recognized, value forests pollinating insects has been largely overlooked in many parts world. In this review, we ( i ) establish global diversity, ii explore relationship between forest cover and mixed‐use landscapes, iii highlight contributions forest‐associated pollinators pollination adjacent crops. The literature shows unambiguously that native support a large number forest‐dependent species are thus critically important diversity. Many taxa require or benefit greatly from resources restricted forests, such as floral provided by plants (including wind‐pollinated trees), dead wood for nesting, tree resins, various non‐floral sugar sources (e.g. honeydew). landscape‐scale studies generally conclusion enhance findings often complicated spatial scale, focal taxa, landscape context, temporal type, disturbance history, external stressors. While some loss can be beneficial enhancing habitat complementarity, too much result near‐elimination species. There strong evidence multiple crop types substantially increase yields habitats, at least within foraging ranges involved. also suggests may have enhanced future given their role mitigating negative effects pesticides climate change. questions remain about amount configuration required promote services neighbouring habitats. However, it clear current body knowledge any effort preserve woody including protection individual trees, will help maintain critical they provide.

Language: Английский

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Unfavorable urban climatic conditions affects colony performance of an amazonian stingless bee (Apidae: Meliponini)

Insectes Sociaux, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

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Impact of Taxonomic and Functional Grouping on Specialization in Plant–Pollinator Networks

Entomological Research, Journal Year: 2025, Volume and Issue: 55(5)

Published: May 1, 2025

ABSTRACT By examining plant–pollinator networks, researchers can create focused conservation and restoration strategies to support the long‐term sustainability of both plant pollinator populations. This research aims (1) examine how grouping pollinators into functional groups higher taxonomic levels affects degree specialization (2) determine proportion attractive flowers shared among different for pollinators. For this study, we analyzed 93 networks. We identified family order each insect establish groupings. At stage, interactions related species at were aggregated. grouping, classified such as bees, beetles, flies, moths, butterflies, ants, others. To measure network specialization, employed H2 metric, where values range between 0 1, with 1 indicating maximum specialization. then utilized t ‐test if there significant differences in Additionally, calculated overlap plants most across four classifications within network. Our findings revealed that networks varied grouping. observed selection depending on level classification employed. Certain may not necessarily be recognized or groups.

Language: Английский

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Status and trends of pollination services in Amazon agroforestry systems

Agriculture Ecosystems & Environment, Journal Year: 2022, Volume and Issue: 335, P. 108012 - 108012

Published: May 16, 2022

With the growing demand for food production worldwide, natural landscapes are increasingly being replaced by agricultural areas, which directly affects biodiversity and local ecosystem services. Agroforestry systems, intentional integration of trees shrubs into crop animal farming a more sustainable approach that has been increasing in several forested areas around globe. Here, we examine trends agroforestry Brazilian Legal Amazon estimate associated value services mediated pollinators. Using data from 2006 2017, detected an increase activity Amazon, both number (3.27%) area (23.18%) establishments. Crop increased 45.61% same period, main products cultivated years were native such as açaí , Brazil nut babassu. Although all five crops with highest Amazon. Pollination also during period US$73.3 to US$156.7 million (113.76%). In 2006, pollination corresponded 44% total production, it jumped 64.43% 2017. Bees beetles two groups pollinators quoted analysed crops. Our estimates show important contribution forest. However, loss forest observed, this can jeopardize have detrimental consequences on near future. Public policies urgently needed encourage harmony combining protection forests production.

Language: Английский

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Route of exposure to veterinary products in bees: Unraveling pasture's impact on avermectin exposure and tolerance in stingless bees

PNAS Nexus, Journal Year: 2024, Volume and Issue: 3(3)

Published: Feb. 29, 2024

Abstract Deforestation rapidly increases in tropical regions, primarily driven by converting natural habitats into pastures for extensive cattle ranching. This landscape transformation, coupled with pesticide use, are key drivers of bee population decline. Here, we investigate the impact pasture-dominated landscapes on colony performance, exposure, and insecticide sensitivity stingless Tetragonisca angustula. We monitored 16 colonies located varying proportions pasture. collected bread palynological analysis. found a positive correlation between pollen diversity growth, no effect proportion pasture landscape. In contrast, detected prevalent hazardous concentrations abamectin (9.6–1,856 µg/kg) bread, which significantly increased higher Despite displayed adverse effects their indicating potential tolerance response. Further investigations revealed that bees from sites showed reduced mortality when exposed to lethal concentration (0.021 µg/µL) after 48 h. Since is scarcely used study area, designed an experiment track ivermectin, closely related antiparasitic drug cattle. Our findings uncovered new exposure route pesticides, wherein ivermectin excreted absorbed biotransformed within flowering plants pastures. These results highlight unexplained routes pesticides remain be described while also revealing adapt changing landscapes.

Language: Английский

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Segurança alimentar: reflexões sobre um problema complexo

Estudos Avançados, Journal Year: 2023, Volume and Issue: 37(109), P. 181 - 206

Published: Oct. 23, 2023

RESUMO O combate à má alimentação em todas as suas formas, que também se expressa na epidemia da obesidade, é uma das prioridades Agenda 2030 e dos Objetivos de Desenvolvimento Sustentável. Este artigo traz elementos sobre insegurança alimentar no Brasil, a partir temas relativos ao crescimento populacional, mudanças climáticas, biodiversidade sistemas alimentares tradicionais regenerativos; trata do papel movimentos sociais para garantia Direito Humano Alimentação Adequada. Grupo Pesquisa Nutrição Pobreza, o Saúde Planetária Centro Inteligência Artificial (C4AI) - Eixo AgriBio, entendem retomada organizada sistêmica frentes apontadas neste posicionamento, pode constituir um caminho articulação entre pesquisa, serviço políticas públicas direção fome às demais manifestações alimentação, enquanto problema complexo prioritário bem-estar social.

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Fruit set is moderately dependent on insect pollinators in strawberry and is limited by the availability of pollen under natural open conditions

The Journal of Horticultural Science and Biotechnology, Journal Year: 2023, Volume and Issue: 98(6), P. 685 - 714

Published: June 14, 2023

ABSTRACTABSTRACTModern strawberry (Fragaria ×ananassa Duch.) cultivars are hermaphrodite and have fertile flowers, with the anthers releasing viable pollen. Cultivars self-compatible do not require cross-pollination. Studies supporting managed or wild insects based on a few reports there problems methods used to assess pollination. This review examined role of pollination in strawberry. The mean (± s.d. standard deviation) pollinator dependence (PD) for yield (self-pollination versus open- insect-assisted pollination) was 0.36 ± 0.26 (P < 0.001, N = 52 studies). yields plants exposed supplementary were higher than those pollinators under natural open conditions, calculated pollen limitation (PL) 0.20 0.17 20 Fields close semi-natural habitats, wildflowers, grass hedges can more greater diversity fields further away. However, abundance does always lead fruit set. Yield is dependent insect (moderate dependence) limited by availability conditions limitation).KEYWORDS: Bumblebeesfliesflowersfruithoneybeeswild bees AcknowledgementsThe Queensland Government funded research through Department Agriculture Fisheries. Financial support from Florida Strawberry Growers' Association (FSGA) appreciated. Special thanks Pat Abbott, Zalee Bates, Helen Macpherson, Danielle Hoffmann Cheryl Petroeschevsky DAF supplying much literature, Gary Hopewell support.Disclosure statementNo potential conflict interest reported author.Data statementThe author confirms that data findings this study available within materials published online paper reasonable request.Supplemental dataSupplemental article be accessed at https://doi.org/10.1080/14620316.2023.2212670.Additional informationFundingThe work supported Research Education Foundation.

Language: Английский

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Critical role of native forest and savannah habitats in retaining neotropical pollinator diversity in highly mechanized agricultural landscapes

Agriculture Ecosystems & Environment, Journal Year: 2022, Volume and Issue: 338, P. 108084 - 108084

Published: July 5, 2022

Language: Английский

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Forest conservation maximises açaí palm pollination services and yield in the Brazilian Amazon

Journal of Applied Ecology, Journal Year: 2023, Volume and Issue: 60(9), P. 1964 - 1976

Published: July 11, 2023

Abstract Agricultural expansion is one of the main drivers global pollinator loss. Paradoxically, this occurs while agriculture becoming increasingly dependent on biotic pollination, raising concerns about food production. Integrated Crop Pollination (ICP), use both wild and managed pollinators in crop fields, can help conserve diversity ensuring effective pollination services for growers. However, given context‐dependent nature approach, there an urgent need to evaluate its application across different landscapes crops. We apply ICP approach açaí palm ( Euterpe oleracea Mart.) production eastern Brazilian Amazon explore effects a native stingless bee, Scaptotrigona aff. postica (Apidae: Meliponini), landscape‐level forest conservation yield socioeconomic outcomes fruit assessed flower visitor assemblages 18 plantations landscape cover gradient, with bee colonies introduced nine plantations. Field data were combined information from semistructured interviews growers estimate profit per hectare under management scenarios. Bee enhanced abundance inflorescences, but increases attributed bees associated shifts evenness (species richness), due reduced visitation near colonies. Fruit inflorescences was positively related diversity. Consequently, overall performance lower This repeated at scale, where surrounding not Synthesis applications. Managed increase densities production, increased environmental risks activity means should prioritise safeguard improve sustainability Amazon.

Language: Английский

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Toward a functional trait approach to bee ecology

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 1, 2023

Language: Английский

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