Indirect interactions between crops and natural vegetation through flower visitors: the importance of temporal as well as spatial spillover

Simba, Lavhelesani Dembe; Foord, Stefan H.; Thébault, Élisa; Veen, F. J. Frank van; Joseph, Grant S.; Seymour, Colleen L.

doi:10.1016/j.agee.2017.11.002

Cited by 20 publications

(15 citation statements)

References 46 publications

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“…Solitary bees might have spilled over from mass-flowering OSR to sparsely flowering strawberry fields. Similar spillover processes have been observed from mango (Simba et al, 2018) or OSR (Kovacs-Hostyanszki et al, 2013) to natural vegetation. Both crops, OSR and strawberry, can provide pollen and nectar as a reward (Bänsch, Tscharntke, Ratnieks, et al, 2020;Knopper et al, 2016;Leidenfrost et al, 2020).…”

Section: Discussionsupporting

confidence: 78%

Crop pollination services: Complementary resource use by social vs solitary bees facing crops with contrasting flower supply

Bänsch

Tscharntke

Gabriel

et al. 2020

Journal of Applied Ecology

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Section: Discussionsupporting

confidence: 78%

Crop pollination services: Complementary resource use by social vs solitary bees facing crops with contrasting flower supply

Bänsch

Tscharntke

Gabriel

et al. 2020

Journal of Applied Ecology

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“…A last possibility, and equally likely, is that mango cultivars are in different spatial locations across the station and that landscape differences in insect requirements unknown to us may operate to influence the visitation to individual cultivars. Studies with M. mangifera in South Africa have shown that existing flowering resources available within and outside cultivated areas (i.e., natural vegetation) have the potential to influence mango floral visitation by contributing floral resources of shared visitors even outside the mango flowering season (Carvalheiro et al, 2010(Carvalheiro et al, , 2012Simba et al, 2018). Carvalheiro et al (2010), indeed showed that the diversity levels experienced by M. indica trees and their fruit yields were dependent on the distance of trees from natural vegetation patches with more diversity and higher yields exhibited by trees that were closer to natural vegetation.…”

Section: Discussionmentioning

confidence: 99%

Community and Species-Level Changes of Insect Species Visiting Mangifera indica Flowers Following Hurricane María: “The Devil Is in the Details”

Cabrera-Asencio

Meléndez‐Ackerman

2021

Front. Ecol. Evol.

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Mangifera indica is a widespread economically important tropical fruit. An ongoing study at the Juana Diaz Experimental Station in Puerto Rico aims to understand the factors that influence local pollination success and fruit yields in four fields each hosting a different mango cultivar (Keitt, Kent, Tommy Atkins, and Julie) at different temporal scales. Here we describe the results of insect collection campaigns that evaluated flower visitor communities of these fields (from January to April) in the seasons of 2017 (before Hurricane Maria), 2018 (after Hurricane Maria) and 2019 (2 years after Hurricane Maria). We expected a reduction in diversity, abundance and yields and even changes in composition following the hurricane events of 2017. Over the 3 years, plants were visited by a combined total of 50 insect species, mostly Diptera (also the most abundant), Hymenoptera, Coleoptera, and Lepidoptera. The relative abundances of insect communities changed but overall species richness of insect communities appeared to be recovering by 2019. A clear decline in overall crop yields for two of the four fields (hosting Kent and Tommy Atkins) was seen in 2018 but then recovered in one and surpassed pre-hurricane levels in another in 2019. Mango trees experienced an increase in the abundance for all insect groups in 2019 following the 2018 decline and only one field (hosting Kent) experienced significant species richness declines in 2018. Two of the most dominant insects, Palpada vinetorum (Diptera) and Apis mellifera (Hymenoptera), showed a “reduction-recovery” pattern for the period of 2018–2019 but not so for Cochliomyia minina which was very abundant in 2018 in three out of four cultivars but then returned to pre-hurricane levels in 2019. In 2017, the trees exposed to higher richness and abundance of species experienced higher yields regardless of cultivars but these relationships when present were often weaker in 2018 (post-hurricane) and 2019 and not all cultivars were equally successful at attracting the same levels of diversity and abundance of insects. Our results do support the importance of pollinator diversity and abundance to improve agricultural yields. They also emphasize that within the context of future extreme atmospheric events, that there needs to be an understanding of not only how these pollinator communities may recover from these events but also of how individual pollinators (vs. other factors) may influence plant yields to develop informed management strategies following such events.

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“…It is proposed by the landscape-moderated concentration hypothesis (Tscharntke et al, 2012) that co-blooming plants can facilitate pollinator visits to orchards. Thus, more resources in an area attract more flower visitors that take advantage of all plants in the area (Feltham et al, 2015;Campbell et al, 2017), due to the spillover of pollinators from natural vegetation into cropland (Simba et al, 2018). Conversely, competition for flower visitors between plant species could occur during overlapping blooming seasons.…”

Section: Influence Of Plant Species Richness and Blooming Cover On The Diversity Of Flower Visitors And Network Structurementioning

confidence: 99%

Plant richness and blooming cover affect abundance of flower visitors and network structure in Colombian orchards

Vaca-Uribe

Figueroa

Santamaría

et al. 2021

Agri and Forest Entomology

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Pollination is essential to fruit production. How plant diversity and blooming events in and around orchards affect the pollinator community and the plant-flower-visitor network in neotropical systems remains largely unknown. 2 We surveyed the flower visitors in deciduous fruit trees and alternative blooming resources (other crops, hedgerows and weeds) in Colombia across 6 orchards over 12 months. We evaluated whether plant species richness and blooming cover influenced abundance and richness of flower visitors, as well as network-level connectance and specialization. We also assessed the role of alternative blooming resources for the flower visitors of deciduous fruit trees. 3 Overall, we found 66 taxa of flower visitors, 35 of which visited deciduous fruit trees.There was a greater abundance of flower visitors when there was higher richness of weedy species and greater blooming cover of deciduous fruit trees. Networks were less connected when there was lower crop and weedy species richness. Finally, flower visitor abundance and specialization increased when there were multiple hedgerow species in bloom with a high blooming cover. 4 We highlight the importance of maintaining alternative blooming resources in and around the orchards to support deciduous fruit tree pollinators and diversity in the plant flower-visitor network.

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Indirect interactions between crops and natural vegetation through flower visitors: the importance of temporal as well as spatial spillover

Cited by 20 publications

References 46 publications

Crop pollination services: Complementary resource use by social vs solitary bees facing crops with contrasting flower supply

Crop pollination services: Complementary resource use by social vs solitary bees facing crops with contrasting flower supply

Community and Species-Level Changes of Insect Species Visiting Mangifera indica Flowers Following Hurricane María: “The Devil Is in the Details”

Plant richness and blooming cover affect abundance of flower visitors and network structure in Colombian orchards

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