Updating the list of flower-visiting bees, hoverflies and wasps in the central atolls of Maldives, with notes on land-use effects.
Anthophila
Apoidea
DNA barcoding
Syrphidae
Vespoidea
animals of tropical islands
anthropogenetic habitat disturbance
distribution in the oriental region
ecosystem service of pollination
flower visitor
land use effect on pollinators
oceanic island biodiversity
Journal
Biodiversity data journal
ISSN: 1314-2828
Titre abrégé: Biodivers Data J
Pays: Bulgaria
ID NLM: 101619899
Informations de publication
Date de publication:
2022
2022
Historique:
received:
08
04
2022
accepted:
10
05
2022
entrez:
10
2
2023
pubmed:
11
2
2023
medline:
11
2
2023
Statut:
epublish
Résumé
Maldives islands host a unique biodiversity, but their integrity is threatened by climate change and impacting land-uses (e.g. cemented or agricultural areas). As pollinators provide key services for the ecosystems and for the inhabitants, it is crucial to know which pollinators occur in the islands, to characterise their genetic identity and to understand which plants they visit and the size of the human impact. Given that no significant faunistic surveys of Hymenoptera have been published for the country in more than 100 years and that Syrphidae were only partly investigated, we sampled islands in the central part of the Maldives country (Faafu and Daahlu atolls) and hand-netted flower-visiting bees, wasps and hoverflies (Hymenoptera: Anthophila, Crabronidae, Sphecidae, Vespidae, Scoliidae and Diptera: Syrphidae). Overall, we found 21 species; 76.4% of the collected specimens were Anthophila (bees), 12.7% belonged to several families of wasps and 10.8% of individuals were Syrphidae. It seems that one third of species are new for the Maldives, based on the published literature. Human land-uses seem to shape the local pollinator fauna since the assemblages of bees, wasps and hoverflies from urbanised and agricultural islands differed from those in resort and natural ones. These pollinators visited 30 plant species in total, although some invasive plants hosted the highest number of flower visitor species. Biogeographically, this pollinating fauna is mostly shared with Sri Lanka and India. Genetically, the used marker hinted for a unique fauna in relation to the rest of the distribution ranges in most cases, although generally within the level of intraspecific genetic variation. This study significantly contributes to increasing the knowledge on the pollinator diversity and genetic identity in Maldives islands also considering the important implications for the islands' land-use and the role of invasive plants. This study will be pivotal for future pollination studies and biodiversity conservation efforts in the region.
Identifiants
pubmed: 36761651
doi: 10.3897/BDJ.10.e85107
pii: 85107
pmc: PMC9848504
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e85107Informations de copyright
Paolo Biella, Axel Ssymank, Andrea Galimberti, Paolo Galli, Michal Perlík, Fausto Ramazzotti, Alessia Rota, Nicola Tommasi.
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