1
|
Fountain MT, Tsiolis K, Silva CX, Deakin G, Garratt MPD, O'Connor R, Carvell C, Pywell RF, Edwards M, Potts SG. Location and Creation of Nest Sites for Ground-Nesting Bees in Apple Orchards. INSECTS 2023; 14:490. [PMID: 37367306 DOI: 10.3390/insects14060490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 06/28/2023]
Abstract
Wild ground-nesting bees are key pollinators of apple (Malus domestica). 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.
Collapse
Affiliation(s)
| | - Konstantinos Tsiolis
- NIAB, New Road, East Malling, Kent ME19 6BJ, UK
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK
| | | | - Greg Deakin
- NIAB, New Road, East Malling, Kent ME19 6BJ, UK
| | - Michael P D Garratt
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK
| | - Rory O'Connor
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK
| | - Claire Carvell
- UK Centre for Ecology & Hydrology, Benson Lane, Wallingford, Oxon OX10 8BB, UK
| | - Richard F Pywell
- UK Centre for Ecology & Hydrology, Benson Lane, Wallingford, Oxon OX10 8BB, UK
| | | | - Simon G Potts
- Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK
| |
Collapse
|
2
|
Aguilera-Olivares D, Torres-Guzmán B, Arab A, Flores-Prado L, Niemeyer HM. Body Size and Symmetry Properties of Termite Soldiers Under Two Intraspecific Competition Scenarios. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.882357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Single-piece nesting termites live and forage in the same piece of wood throughout their life, which limit their colony size. In certain species, more than one colony thrive in a given piece of wood (multicolonial substrate) and intraspecific competition become important in this limited resource, as has been reported in Zootermopsis nevadensis (Hagen, 1858) and Neotermes chilensis (Blattodea: Kalotermitidae) (Blanchard, 1851). The effects of such competition have been described mainly at population and colony levels rather than at the individual level. In eusocial insects such as termites, intraspecific competition constitutes a stress factor imposed to a colony as a whole and should also cause developmental instability in soldiers produced under such conditions. Investment in the production of soldiers involves a trade-off between colony maintenance costs and defense benefits. Hence, we hypothesize that body size and fluctuating asymmetry, two indicators of developmental instability, will increase when two or more colonies of N. chilensis share a piece of wood (high intraspecific competition scenario). Our results showed that soldiers developing in multicolonial substrates were indeed larger and more asymmetric than soldiers developing in unicolonial substrates. The large body size in a soldier could improve its chance to win a physical contest with a non-nestmate opponent; thus, despite the high cost to produce large soldiers in small colonies, larger soldier production could be an adaptative strategy to avoid being outcompeted. However, the effects of deviations from perfect symmetry on soldier performance are not clear.
Collapse
|
3
|
Parsons PJ, Couchoux C, Horsburgh GJ, Dawson DA, Field J. Identification of 24 new microsatellite loci in the sweat bee Lasioglossum malachurum (Hymenoptera: Halictidae). BMC Res Notes 2017; 10:753. [PMID: 29258586 PMCID: PMC5738125 DOI: 10.1186/s13104-017-3089-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/13/2017] [Indexed: 11/25/2022] Open
Abstract
Objective The objective here is to identify highly polymorphic microsatellite loci for the Palaearctic sweat bee Lasioglossum malachurum. Sweat bees (Hymenoptera: Halictidae) are widespread pollinators that exhibit an unusually large range of social behaviours from non-social, where each female nests alone, to eusocial, where a single queen reproduces while the other members of the colony help to rear her offspring. They thus represent excellent models for understanding social evolution. Results 24 new microsatellite loci were successfully optimized. When amplified across 23–40 unrelated females, the number of alleles per locus ranged from 3 to 17 and the observed heterozygosities 0.45 to 0.95. Only one locus showed evidence of significant deviation from Hardy–Weinberg equilibrium. No evidence of linkage disequilibrium was found. These 24 loci will enable researchers to gain greater understanding of colony relationships within this species, an important model for the study of eusociality. Furthermore, 22 of the same loci were also successfully amplified in L. calceatum, suggesting that these loci may be useful for investigating the ecology and evolution of sweat bees in general.
Collapse
Affiliation(s)
- Paul J Parsons
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Cornwall, TR10 9EZ, UK. .,NERC Biomolecular Analysis Facility, Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.
| | - Christelle Couchoux
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Cornwall, TR10 9EZ, UK
| | - Gavin J Horsburgh
- NERC Biomolecular Analysis Facility, Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Deborah A Dawson
- NERC Biomolecular Analysis Facility, Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
| | - Jeremy Field
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Cornwall, TR10 9EZ, UK
| |
Collapse
|
4
|
Davison PJ, Field J. Social polymorphism in the sweat bee Lasioglossum ( Evylaeus) calceatum. INSECTES SOCIAUX 2016; 63:327-338. [PMID: 27340290 PMCID: PMC4869766 DOI: 10.1007/s00040-016-0473-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 02/04/2016] [Accepted: 02/19/2016] [Indexed: 05/12/2023]
Abstract
Temperate-zone socially polymorphic sweat bees (Hymenoptera: Halictidae) are ideal model systems for elucidating the origins of eusociality, a major evolutionary transition. Bees express either social or solitary behaviour in different parts of their range, and social phenotype typically correlates with season length. Despite their obvious utility, however, socially polymorphic sweat bees have received relatively little attention with respect to understanding the origins of eusociality. Lasioglossum (Evylaeus) calceatum is a widespread sweat bee that is thought to be socially polymorphic, with important potential as an experimental model species. We first determined the social phenotype of L. calceatum at three sites located at different latitudes within the UK. We then investigated sociality in detail across two years at the southernmost site. We found that L. calceatum exhibits latitudinal social polymorphism within the UK; bees were solitary at our two northern sites but the majority of nests were social at our southern site. Sociality in the south was characterised by a relatively small mean of two and 3.5 workers per nest in each year, respectively, and a small to medium mean caste-size dimorphism of 6.6 %. Foundresses were smaller in our more northern and high altitude populations. Sociality is clearly less specialised than in some closely related obligately social species but probably more specialied than other polymorphic sweat bees. Our research provides a starting point for future experimental work to investigate mechanisms underlying social polymorphism in L. calceatum.
Collapse
Affiliation(s)
- P J Davison
- School of Life Sciences, University of Sussex, John Maynard Smith Building, Brighton, BN1 9QG UK
| | - J Field
- School of Life Sciences, University of Sussex, John Maynard Smith Building, Brighton, BN1 9QG UK
| |
Collapse
|
5
|
Cunningham JP, Hereward JP, Heard TA, De Barro PJ, West SA. Bees at War: Interspecific Battles and Nest Usurpation in Stingless Bees. Am Nat 2014; 184:777-86. [DOI: 10.1086/678399] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
6
|
Giovanetti M, Jacobi B. Influence of temperature and body size on activities of a social wasp,Cerceris rubida(Hymenoptera Crabronidae). ETHOL ECOL EVOL 2013. [DOI: 10.1080/03949370.2013.808704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
7
|
Socially peaceful: foragers of the eusocial bee Lasioglossum malachurum are not aggressive against non-nestmates in circle-tube arenas. Acta Ethol 2011. [DOI: 10.1007/s10211-011-0103-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
8
|
Kin discriminators in the eusocial sweat bee Lasioglossum malachurum: the reliability of cuticular and Dufour’s gland odours. Behav Ecol Sociobiol 2010. [DOI: 10.1007/s00265-010-1066-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
9
|
Social competition but not subfertility leads to a division of labour in the facultatively social sweat bee Megalopta genalis (Hymenoptera: Halictidae). Anim Behav 2009. [DOI: 10.1016/j.anbehav.2009.06.032] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|