Natural processes influencing pollinator health

Stevenson, Philip C.; Koch, Hauke; Nicolson, Susan W.; Brown, Mark J. F.

doi:10.1098/rstb.2021.0154

Cited by 11 publications

(13 citation statements)

References 81 publications

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“…Bee health can be examined across a range of scales [5,6], from the individual to the community. Almost by definition, parasites should negatively impact the health of individual pollinators, as noted above, so here I largely focus on health at the levels of populations, species and pollinator communities.…”

Section: Parasites and Wild Pollinator Health Sensu Strictomentioning

confidence: 99%

“…Turning to the level of population or community health in wild pollinators [5,6], a useful analogy can be made with the extensive literature on pollinator–plant networks [31,32]. Empirical and theoretical studies of the relationship between pollinators and the plants that they pollinate show that a robust, resilient or perhaps healthy network is one that contains many pollinator species, with redundancy in their plant visitation patterns [31,32].…”

Section: Parasites and Wild Pollinator Health Sensu Latomentioning

confidence: 99%

“…However, from an ecological perspective, a rich and abundant parasite community may be not just a sign of a healthy host community [3], but an actual positive driver of this health [4]. Here, my aim is to dissect the complex relationship between parasites and wild pollinator health, focusing on bees due to a general lack of knowledge for other insect pollinators and on health at the level of the pollinator community [5,6]. A more holistic approach to the relationship between pollinators and their parasites is essential to the future support and maintenance of healthy pollinator assemblages.…”

Section: Introductionmentioning

confidence: 99%

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Complex networks of parasites and pollinators: moving towards a healthy balance

Brown

2022

Phil. Trans. R. Soc. B

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Parasites are viewed as a major threat to wild pollinator health. While this may be true for epidemics driven by parasite spillover from managed or invasive species, the picture is more complex for endemic parasites. Wild pollinator species host and share a species-rich, generalist parasite community. In contrast to the negative health impacts that these parasites impose on individual hosts, at a community level they may act to reduce competition from common and abundant pollinator species. By providing rare species with space in which to exist, this will act to support and maintain a diverse and thus healthier pollinator community. At this level, and perhaps paraxodically, parasites may be good for pollinators. This stands in clear contrast to the obvious negative impacts of epidemic and spillover parasites on wild pollinator communities. Research into floral resources that control parasites could be best employed to help design landscapes that provide pollinators with the opportunity to moderate their parasite community, rather than attempting to eliminate specific parasites from wild pollinator communities. This article is part of the theme issue ‘Natural processes influencing pollinator health: from chemistry to landscapes’.

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Section: Parasites and Wild Pollinator Health Sensu Strictomentioning

confidence: 99%

Section: Parasites and Wild Pollinator Health Sensu Latomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Complex networks of parasites and pollinators: moving towards a healthy balance

Brown

2022

Phil. Trans. R. Soc. B

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“…Os polinizadores são atraídos pelos recursos primários oferecidos pelas flores como pólen, néctar e óleos, e por recursos secundários como a coloração das estruturas florais e seus odores (Endress, 1994). Esses recursos ofertados fazem parte dos atributos florais de grupos vegetais não relacionados, que se adaptaram evolutivamente para atrair determinados tipos de agentes polinizadores e afastar outros, procurando garantir o sucesso de sua reprodução, fenômeno esse investigado pelos botânicos com o objetivo de obter possíveis explicações para melhor compreendê-los (Barônio et al, 2016;Gomes e Quirino, 2016;Lóz et al, 2019;Krakos & Austin, 2020;Kar et al, 2021;Stevenson et al, 2022).…”

Section: Introductionunclassified

“…No contexto de mudanças climáticas, as perturbações provocadas pelas ações antrópicas podem ter um impacto sobre polinizadores de forma progressiva, levando a extinções locais e/ou mudanças comportamentais dos agentes polinizadores, podendo causar o desaparecimento de plantas que dependem deles para a polinização, dispersão de sementes ou proteção contra herbivoria (Leal e Andersen 2014: Brown e Oliveira 2014Tabarelli et al, 2018;Theodorou et al, 2020;Suni et al, 2021;Lage-Pinto et al, 2021;Ganuza et al, 2022;Rollin et al, 2022;Stevenson et al, 2022).…”

Section: Introductionunclassified

Síndrome de Polinização das Espécies Arbóreas e Arbustivas do Campus do Pici - Fortaleza, Ceará, Brasil

Sousa

Oliveira

Cavalcante

et al. 2022

Rev. Bras. Geog. Fis.

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O Campus do Pici localizado na zona urbana de Fortaleza, Ceará, apresenta uma diversidade de espécies vegetais. diante disso, o presente estudo objetivou identificar através das características florais, as síndromes de polinização das espécies vegetais arbóreas e arbustivas que ocorrem no referido Campus. As informações sobre as espécies foram obtidas através de consulta e análise dos espécimes depositadas do herbário EAC e bibliografias especializadas. A partir destas informações, foi elaborada uma lista de espécies das famílias botânicas, suas características morfológicas e síndrome de polinização. Foram listadas 110 espécies distribuídas em 80 gêneros e 28 famílias, com destaque para Fabaceae (34,54%), seguida de Euphorbiaceae (6,36%) e Rubiaceae (5,45%), correspondendo a 46,35% do total de táxons. A síndrome de melitofilia foi a mais frequente, principalmente entre as espécies de Fabaceae, demonstrando a importância dessa família para a manutenção das abelhas em locais antropizados como o Campus do Pici.Palavras-chave: Agentes polinizadores, Melitofilia, Plantas nativas, Biologia floral, Nordeste do Brasil. Pollination Syndrome of Tree and Shrub Species of Campus do Pici - Fortaleza, Ceará, BrazilA B S T R A C TThe Campus do Pici, located in the urban area of Fortaleza, - Ceará state, has a diversity of plant species. Therefore, the present study aimed to identify, through the floral characteristics, the pollination syndromes of the tree and shrub plant species that occur in the aforementioned Campus. Information about the species was obtained through consultation and analysis of specimens deposited in the EAC herbarium and specialized bibliographies. From this information, a list of species of the botanical families, their morphological characteristics and pollination syndrome was elaborated. A total of 110 species distributed in 80 genera and 28 families were listed, with emphasis on Fabaceae (34.54%), followed by Euphorbiaceae (6.36%) and Rubiaceae (5.45%), corresponding to 46.35% of the total number of táxons. Melitophilia syndrome was the most frequent, mainly among Fabaceae species, demonstrating the importance of this family for the maintenance of bees in anthropized places such as Campus do Pici.Key words: Pollinating agents, Melitophilia, Native plants, Floral biology, Northeastern Brazil.

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Assessing the analytical reliability of traditional and novel sampling methods for the study of flower rewards quality

Pioltelli,

Guzzetti,

Copetta

et al. 2024

Ecosphere

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Pollinator insects are declining worldwide also due to the alteration of their diet which plays a pivotal role in influencing their health status. Despite interspecific and intraspecific diversity in the diet, pollinators completely or partly rely on pollen and nectar as food sources. A precise characterization of the chemical composition of these flower resources represents a key step in the definition of pollinators' nutritional ecology. However, pollen and nectar represent challenging sources to collect and analyze, especially due to their small amounts per flower, and the application of suitable sampling and analysis tools is a pivotal step to perform dedicated studies and comparisons. Here, we compared a recently proposed tool based on a portable vacuum cleaner for floral pollen collection (E‐PoSa, i.e., Electronic Pollen Sampler) with traditional pollen sampling methods (i.e., anther collection and anther sieving) together with the evaluation of different nectar sampling techniques (i.e., centrifugation, microcapillaries, washing, and microrinsing) by looking at the differences in their quantitative recovery as well as their chemical profiling. Pollen and nectar were collected from three model flower species each. Our results demonstrated that different collection methods introduce biases in the nutritional profiling of floral rewards and specifically: (1) underestimation of the pollen protein and lipid content in the anther collection method; (2) reduction in the volume of recovered nectar by centrifugation; (3) overestimation of the glucose content in the nectar collected by flower washing and underestimation of the glucose content by microrinsing; and (4) relevant biases in the phytochemical profiles of pollen and nectar by analyzing the whole anthers and the nectar collected by washing the entire flower. Differences in methods were not directly related to the different productivity of pollen and nectar across species. The final goal of the study is to propose standardized, comparable, and easily accessible strategies for the study of flower resources that ultimately impact on pollinators' nutritional ecology. Acknowledging the potential influences of the sampling techniques and moving toward shared field protocols will advance the comprehension of species interactions, foraging patterns, and pollinators' nutritional needs.

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Natural processes influencing pollinator health

Cited by 11 publications

References 81 publications

Complex networks of parasites and pollinators: moving towards a healthy balance

Complex networks of parasites and pollinators: moving towards a healthy balance

Síndrome de Polinização das Espécies Arbóreas e Arbustivas do Campus do Pici - Fortaleza, Ceará, Brasil

Assessing the analytical reliability of traditional and novel sampling methods for the study of flower rewards quality

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