Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards

Wild ground-nesting bees are key pollinators of apple (<i>Malus domestica</i>). We explored, (1) where they choose to nest, (2) what influences site selection and (3) species richness in orchards. Twenty-three orchards were studied over three years; twelve were treated with additional he...

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Main Authors: Michelle T. Fountain, Konstantinos Tsiolis, Celine X. Silva, Greg Deakin, Michael P. D. Garratt, Rory O’Connor, Claire Carvell, Richard F. Pywell, Michael Edwards, Simon G. Potts
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/14/6/490
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author Michelle T. Fountain
Konstantinos Tsiolis
Celine X. Silva
Greg Deakin
Michael P. D. Garratt
Rory O’Connor
Claire Carvell
Richard F. Pywell
Michael Edwards
Simon G. Potts
author_facet Michelle T. Fountain
Konstantinos Tsiolis
Celine X. Silva
Greg Deakin
Michael P. D. Garratt
Rory O’Connor
Claire Carvell
Richard F. Pywell
Michael Edwards
Simon G. Potts
author_sort Michelle T. Fountain
collection DOAJ
description Wild ground-nesting bees are key pollinators of apple (<i>Malus domestica</i>). We explored, (1) where they choose to nest, (2) what influences site selection and (3) species richness in orchards. Twenty-three orchards were studied over three years; twelve were treated with additional herbicide to increase bare ground with the remainder as untreated controls. Vegetation cover, soil type, soil compaction, nest number and location, and species were recorded. Fourteen species of ground-nesting solitary/eusocial bee were identified. Most nests were in areas free of vegetation and areas treated with additional herbicide were utilised by ground nesting bees within three years of application. Nests were also evenly distributed along the vegetation-free strips underneath the apple trees. This area was an important ground-nesting bee habitat with mean numbers of nests at peak nest activity of 873 per ha (range 44–5705), and 1153 per ha (range 0–4082) in 2018 and 2019, respectively. Increasing and maintaining areas of bare ground in apple orchards during peak nesting events could improve nesting opportunities for some species of ground-nesting bee and, combined with flowers strips, be part of a more sustainable pollinator management approach. The area under the tree row is an important contributor to the ground-nesting bee habitat and should be kept bare during peak nesting.
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spelling doaj.art-b0f1e27e4ee344af99bb08c23549b4f92023-11-18T10:55:33ZengMDPI AGInsects2075-44502023-05-0114649010.3390/insects14060490Location and Creation of Nest Sites for Ground-Nesting Bees in Apple OrchardsMichelle T. Fountain0Konstantinos Tsiolis1Celine X. Silva2Greg Deakin3Michael P. D. Garratt4Rory O’Connor5Claire Carvell6Richard F. Pywell7Michael Edwards8Simon G. Potts9NIAB, New Road, East Malling, Kent ME19 6BJ, UKNIAB, New Road, East Malling, Kent ME19 6BJ, UKNIAB, New Road, East Malling, Kent ME19 6BJ, UKNIAB, New Road, East Malling, Kent ME19 6BJ, UKCentre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UKCentre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UKUK Centre for Ecology & Hydrology, Benson Lane, Wallingford, Oxon OX10 8BB, UKUK Centre for Ecology & Hydrology, Benson Lane, Wallingford, Oxon OX10 8BB, UKLea Side, Carron Lane, Midhurst GU29 9LB, UKCentre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UKWild ground-nesting bees are key pollinators of apple (<i>Malus domestica</i>). We explored, (1) where they choose to nest, (2) what influences site selection and (3) species richness in orchards. Twenty-three orchards were studied over three years; twelve were treated with additional herbicide to increase bare ground with the remainder as untreated controls. Vegetation cover, soil type, soil compaction, nest number and location, and species were recorded. Fourteen species of ground-nesting solitary/eusocial bee were identified. Most nests were in areas free of vegetation and areas treated with additional herbicide were utilised by ground nesting bees within three years of application. Nests were also evenly distributed along the vegetation-free strips underneath the apple trees. This area was an important ground-nesting bee habitat with mean numbers of nests at peak nest activity of 873 per ha (range 44–5705), and 1153 per ha (range 0–4082) in 2018 and 2019, respectively. Increasing and maintaining areas of bare ground in apple orchards during peak nesting events could improve nesting opportunities for some species of ground-nesting bee and, combined with flowers strips, be part of a more sustainable pollinator management approach. The area under the tree row is an important contributor to the ground-nesting bee habitat and should be kept bare during peak nesting.https://www.mdpi.com/2075-4450/14/6/490<i>Andrena</i>blossom<i>Lasioglossum</i>Galahabitat managementinsect
spellingShingle Michelle T. Fountain
Konstantinos Tsiolis
Celine X. Silva
Greg Deakin
Michael P. D. Garratt
Rory O’Connor
Claire Carvell
Richard F. Pywell
Michael Edwards
Simon G. Potts
Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
Insects
<i>Andrena</i>
blossom
<i>Lasioglossum</i>
Gala
habitat management
insect
title Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
title_full Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
title_fullStr Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
title_full_unstemmed Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
title_short Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards
title_sort location and creation of nest sites for ground nesting bees in apple orchards
topic <i>Andrena</i>
blossom
<i>Lasioglossum</i>
Gala
habitat management
insect
url https://www.mdpi.com/2075-4450/14/6/490
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