Species richness estimation of the Afrotropical Darwin wasps (Hymenoptera, Ichneumonidae).

Meier, Noah; Gordon, Mikhaila; van Noort, Simon; Reynolds, Terry; Rindos, Michal; Di Giovanni, Filippo; Broad, Gavin R; Spasojevic, Tamara; Bennett, Andrew; Dal Pos, Davide; Klopfstein, Seraina (2024). Species richness estimation of the Afrotropical Darwin wasps (Hymenoptera, Ichneumonidae). PLoS ONE, 19(7), e0307404. Public Library of Science 10.1371/journal.pone.0307404

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Species richness is one of the fundamental metrics of biodiversity. Estimating species richness helps spotlight taxonomic groups that are particularly under-studied, such as the highly diverse Darwin wasps. The only available estimate of the number of Darwin wasps in the Afrotropics proposed almost 11,000 species, compared to the 2,322 recorded species. However, it relied exclusively on the ratio of morphospecies to described species in Henry Townes' personal collection. We provide an updated estimate of the Afrotropical Darwin wasp species, using empirical data from multiple sources, including the increase in species numbers following generic revisions, morphospecies sorting in natural history collections, and diversity patterns of better-studied insects (butterflies) for extrapolation. Our analyses suggest that our knowledge of Darwin wasps is highly incomplete, with only 13-22% of species known in the five most extensively studied countries in the Afrotropics. We estimate 9,206-15,577 species of Darwin wasps within the entire Afrotropics, with the highest concentration expected in the Equatorial Afrotropics and Madagascar. Due to data constraints, our approach tends to underestimate diversity at each step, rendering the upper estimate (15,577 species) more realistic. We highlight reasons contributing to the gap between recorded and estimated species richness, including logistical and financial factors, as well as post-colonial influences.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Spasojevic, Tamara, Klopfstein, Seraina

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)
500 Science > 580 Plants (Botany)

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Pubmed Import

Date Deposited:

30 Jul 2024 08:54

Last Modified:

30 Jul 2024 09:03

Publisher DOI:

10.1371/journal.pone.0307404

PubMed ID:

39074088

BORIS DOI:

10.48350/199365

URI:

https://boris.unibe.ch/id/eprint/199365

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