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Article ; Online: A trait database for southern African freshwater invertebrates

Odume, Oghenekaro N / Akamagwuna, Frank C / Ntloko, Pindiwe / Dallas, Helen F / Nnadozie, Chika F / Barber-James, Helen M

African Journal of Aquatic Science. 2023 Jan. 02, v. 48, no. 1 p.64-70

2023

Abstract: Invertebrates are often used as indicators of ecosystem health. In community ecology, the use of organism traits (e.g. behavioural, biological or ecological) can be of value in relation to impact diagnosis and assemblage prediction. It has also been ... ...

Abstract	Invertebrates are often used as indicators of ecosystem health. In community ecology, the use of organism traits (e.g. behavioural, biological or ecological) can be of value in relation to impact diagnosis and assemblage prediction. It has also been recognised that certain traits are related to ecosystem function, and their use in biological monitoring provide insights into ecosystem functional responses to stressors. However, the paucity of trait information and non-availability of a local trait database for southern African invertebrates impede progress in using this approach for biological monitoring. To address this critical gap, we compiled an updateable trait database for southern African freshwater invertebrates. The database contains information on 40 trait categories and 204 trait attribute/modalities. Of the 40 trait categories included in the database, 12 are biological, 12 are behavioural, and 16 are ecological preferences. The database is designed to accommodate taxonomic flexibility. In this regard, trait information is entered at multiple taxonomic levels: family, genus, and species, allowing researchers working at different taxonomic resolutions to retrieve relevant information. While there are still gaps in the database, this effort represents the first attempt to synthesise available trait information on southern African freshwater invertebrates.
Keywords	databases ; ecological function ; ecosystems ; environmental health ; freshwater ; prediction ; behavioural trait ; biological monitoring ; biological trait ; ecological preference ; functional ecology ; taxonomy
Language	English
Dates of publication	2023-0102
Size	p. 64-70.
Publishing place	Taylor & Francis
Document type	Article ; Online
ZDB-ID	2233937-1
ISSN	1727-9364 ; 1608-5914
ISSN (online)	1727-9364
ISSN	1608-5914
DOI	10.2989/16085914.2022.2142505
Database	NAL-Catalogue (AGRICOLA)

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Article: A reassessment of the genus

Barber-James, Helen M / Zrelli, Sonia / Yanai, Zohar / Sartori, Michel

ZooKeys

2020 Volume 985, Page(s) 15–47

Abstract: The distinction between the two closely related ... ...

Abstract	The distinction between the two closely related genera
Language	English
Publishing date	2020-11-05
Publishing country	Bulgaria
Document type	Journal Article
ZDB-ID	2445640-8
ISSN	1313-2970 ; 1313-2989
ISSN (online)	1313-2970
ISSN	1313-2989
DOI	10.3897/zookeys.985.56649
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: A reassessment of the genus Oligoneuriopsis Crass, 1947 (Ephemeroptera, Oligoneuriidae, Oligoneuriellini)

Barber-James, Helen M / Zrelli, Sonia / Yanai, Zohar / Sartori, Michel

ZooKeys. 2020 Nov. 05, v. 985

2020

Abstract: The distinction between the two closely related genera Oligoneuriella Ulmer, 1924 and Oligoneuriopsis Crass, 1947 has been much debated. First described from South Africa, Oligoneuriopsis seemed to be a clearly defined genus. However, as the known ... ...

Abstract	The distinction between the two closely related genera Oligoneuriella Ulmer, 1924 and Oligoneuriopsis Crass, 1947 has been much debated. First described from South Africa, Oligoneuriopsis seemed to be a clearly defined genus. However, as the known distribution of the genus widened and knowledge on it expanded, species delimitation based on morphology became less clear due to overlap in several apparently defining morphological characters, especially in the nymphs. This work attempts to reassess Oligoneuriopsis morphology in the context of all currently known species. The type species, Oligoneuriopsis lawrencei Crass, 1947 is redescribed at the imaginal and nymphal stages and a neotype is designated. The putative nymph of Oligoneuriopsis dobbsi (Eaton, 1912) is described based on material collected around Mt Elgon (Kenya). The adults of Oligoneuriella orontensis Koch, 1980 are described for the first time and the species is transferred to the genus Oligoneuriopsis (Oligoneuriopsis orontensis comb. nov.). Egg structure is also described for the first time for the species Oligoneuriopsis skhounate and O. orontensis. Some biogeographical considerations are also given. It is likely that more species will still be discovered, especially in Africa.
Keywords	Ephemeroptera ; eggs ; geographical distribution ; neotypes ; Kenya ; South Africa
Language	English
Dates of publication	2020-1105
Size	p. 15-47.
Publishing place	Pensoft Publishers
Document type	Article
Note	NAL-light
ZDB-ID	2445640-8
ISSN	1313-2970 ; 1313-2989
ISSN (online)	1313-2970
ISSN	1313-2989
DOI	10.3897/zookeys.985.56649
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Article: Disentangling wing shape evolution in the African mayfly, Teloganodidae (Ephemeroptera)

Pereira-da-Conceicoa, Lyndall L / Benítez, Hugo A / Barber-James, Helen M

Zoologischer Anzeiger. 2019 May, v. 280

2019

Abstract: Wings are one of the most important structures in the evolution of insects and winged insects are widely accepted as being monophyletic. In Ephemeroptera, wing structure and shape is important for interpreting taxonomic relationships. Morphological ... ...

Abstract	Wings are one of the most important structures in the evolution of insects and winged insects are widely accepted as being monophyletic. In Ephemeroptera, wing structure and shape is important for interpreting taxonomic relationships. Morphological variation in wing shape of 14 distinct operational taxonomic units (OTUs) of South African Teloganodidae mayfly was examined using landmark-based geometric morphometric methods and molecular phylogenetics to determine evolutionary shape change and allometry. Fore and hind wing shape data were tested for phylogenetic structure using an independently derived molecular phylogeny, which were then mapped into PCA shape space. The effect of evolutionary allometry as a factor contributing to shape change was examined and quantified. Significant phylogenetic signal was found in fore and hind wing shape, and evolutionary allometry was found to have a significant effect on fore wing but not hind wing shape variation. In the fore wing, evolutionary allometry was removed to explore the non-allometric component of shape variation and discuss possible implications on flight performance. The principal findings of this research show that the relationships between wing shape and size are complex and taxon-specific. We have revealed that evolutionary size changes have a considerable effect on the evolutionary shape changes of Teloganodidae fore wings, however this does not account for all the variation in shape. An increased fore wing size is associated with a broader wing base and narrower, raked wing apex, promoting less-energetically demanding flight, possibly with a higher range of speeds. The smaller species have a relatively narrow wing base and increased wing area at the apex, suggesting a slower flight with more agility, which is more energetically costly. The non-allometric variation involves similar, but less distinct shape changes compared to the allometric component, indicating that other processes must also contribute to the same features of evolutionary shape variation.
Keywords	Ephemeroptera ; allometry ; flight ; geometry ; insects ; monophyly ; morphometry ; wings
Language	English
Dates of publication	2019-05
Size	p. 30-41.
Publishing place	Elsevier GmbH
Document type	Article
ZDB-ID	398-0
ISSN	1873-2674 ; 0044-5231
ISSN (online)	1873-2674
ISSN	0044-5231
DOI	10.1016/j.jcz.2019.02.005
Database	NAL-Catalogue (AGRICOLA)

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Article: Habitat requirements affect genetic variation in three species of mayfly (Ephemeroptera, Baetidae) from South Africa

Taylor, Chantal L / Barker, Nigel P / Barber-James, Helen M / Villet, Martin H / Pereira-da-Conceicoa, Lyndall L

ZooKeys. 2020 May 28, v. 936

2020

Abstract: This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread (Afroptilumsudafricanum) and two stenotopic and thus endemic (Demoreptusnatalensis and Demoreptuscapensis) species, all of which co-occur ... ...

Abstract	This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread (Afroptilumsudafricanum) and two stenotopic and thus endemic (Demoreptusnatalensis and Demoreptuscapensis) species, all of which co-occur in the southern Great Escarpment, South Africa. Mitochondrial DNA was analysed to compare the genetic diversity between the habitat generalist and the two habitat specialists. Afroptilumsudafricanum showed no indication of population genetic structure due to geographic location, while both Demoreptus species revealed clear genetic differentiation between geographic localities and catchments, evident from phylogenetic analyses and high FST values from AMOVA. In addition, the phylogenetic analyses indicate some deeper haplotype divergences within A.sudafricanum and Demoreptus that merit taxonomic attention. These results give important insight into evolutionary processes occurring through habitat specialisation and population isolation. Further research and sampling across a wider geographic setting that includes both major mountain blocks of the Escarpment and lowland non-Escarpment sites will allow for refined understanding of biodiversity and associated habitat preferences, and illuminate comparative inferences into gene flow and cryptic speciation.
Keywords	Baetidae ; biodiversity ; cryptic speciation ; eurytopic species ; gene flow ; genetic structure ; genetic variation ; habitat preferences ; habitats ; haplotypes ; mitochondrial DNA ; phylogeny ; population structure ; stenotopic species ; watersheds ; South Africa
Language	English
Dates of publication	2020-0528
Size	p. 1-24.
Publishing place	Pensoft Publishers
Document type	Article
ZDB-ID	2445640-8
ISSN	1313-2970 ; 1313-2989
ISSN (online)	1313-2970
ISSN	1313-2989
DOI	10.3897/zookeys.936.38587
Database	NAL-Catalogue (AGRICOLA)

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Article: Habitat requirements affect genetic variation in three species of mayfly (Ephemeroptera, Baetidae) from South Africa.

Taylor, Chantal L / Barker, Nigel P / Barber-James, Helen M / Villet, Martin H / Pereira-da-Conceicoa, Lyndall L

ZooKeys

2020 Volume 936, Page(s) 1–24

Abstract: This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread ( ...

Abstract	This study investigates genetic diversity in three species of Ephemeroptera, one eurytopic and therefore widespread (
Language	English
Publishing date	2020-05-28
Publishing country	Bulgaria
Document type	Journal Article
ZDB-ID	2445640-8
ISSN	1313-2970 ; 1313-2989
ISSN (online)	1313-2970
ISSN	1313-2989
DOI	10.3897/zookeys.936.38587
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Redescription and lectotype designation of the endemic South African mayfly Lestagella penicillata (Barnard, 1932) (Ephemeroptera: Teloganodidae).

Pereira-da-Conceicoa, Lyndall L / Barber-James, Helen M

Zootaxa

2013 Volume 3750, Page(s) 450–464

Abstract: The imago and nymph of Lestagella penicillata are redescribed based on historic specimens and new material from Table Mountain slopes (Skeleton Gorge and Window Stream), Western Cape, South Africa. A male from Barnard's syntype series is designated as ... ...

Abstract	The imago and nymph of Lestagella penicillata are redescribed based on historic specimens and new material from Table Mountain slopes (Skeleton Gorge and Window Stream), Western Cape, South Africa. A male from Barnard's syntype series is designated as the lectotype. Wear-and-tear of mouthparts, particularly the mandibles, has led to errors in identification of diagnostic characters for the nymphs in earlier publications. Previous descriptions of the mandibles being atrophied, in terms of dentition, are erroneous. The generic diagnosis of Lestagella is modified to account for these errors and intraspecific variability. Adults are distinguished from other Teloganodidae by the combination of a short, detached iMP vein on the forewing, three caudal filaments and gill socket vestiges on segments II - IV. Nymphs are distinguished from other Teloganodidae by a conspicuous head fringe, lamellate gills on abdominal segments II-IV and a dorso-ventrally flattened body.
MeSH term(s)	Animal Distribution ; Animal Structures/anatomy & histology ; Animal Structures/growth & development ; Animals ; Ecosystem ; Female ; Insecta/anatomy & histology ; Insecta/classification ; Insecta/growth & development ; Male ; Nymph/anatomy & histology ; South Africa
Language	English
Publishing date	2013-12-23
Publishing country	New Zealand
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1175-5326
ISSN	1175-5326
DOI	10.11646/zootaxa.3750.5.2
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: South African Lagerstätte reveals middle Permian Gondwanan lakeshore ecosystem in exquisite detail.

Prevec, Rosemary / Nel, André / Day, Michael O / Muir, Robert A / Matiwane, Aviwe / Kirkaldy, Abigail P / Moyo, Sydney / Staniczek, Arnold / Cariglino, Bárbara / Maseko, Zolile / Kom, Nokuthula / Rubidge, Bruce S / Garrouste, Romain / Holland, Alexandra / Barber-James, Helen M

Communications biology

2022 Volume 5, Issue 1, Page(s) 1154

Abstract: Continental ecosystems of the middle Permian Period (273-259 million years ago) are poorly understood. In South Africa, the vertebrate fossil record is well documented for this time interval, but the plants and insects are virtually unknown, and are rare ...

Abstract	Continental ecosystems of the middle Permian Period (273-259 million years ago) are poorly understood. In South Africa, the vertebrate fossil record is well documented for this time interval, but the plants and insects are virtually unknown, and are rare globally. This scarcity of data has hampered studies of the evolution and diversification of life, and has precluded detailed reconstructions and analyses of ecosystems of this critical period in Earth's history. Here we introduce a new locality in the southern Karoo Basin that is producing exceptionally well-preserved and abundant fossils of novel freshwater and terrestrial insects, arachnids, and plants. Within a robust regional geochronological, geological and biostratigraphic context, this Konservat- and Konzentrat-Lagerstätte offers a unique opportunity for the study and reconstruction of a southern Gondwanan deltaic ecosystem that thrived 266-268 million years ago, and will serve as a high-resolution ecological baseline towards a better understanding of Permian extinction events.
MeSH term(s)	Animals ; Ecosystem ; South Africa ; Fossils ; Vertebrates ; Plants ; Insecta
Language	English
Publishing date	2022-10-30
Publishing country	England
Document type	Journal Article
ISSN	2399-3642
ISSN (online)	2399-3642
DOI	10.1038/s42003-022-04132-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Global diversity of mayflies (Ephemeroptera, Insecta) in freshwater

Barber-James, Helen M / Gattolliat, Jean-Luc / Sartori, Michel / Hubbard, Michael D

Hydrobiologia. 2008 Jan., v. 595, no. 1

2008

Abstract: The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has ...

Abstract	The extant global Ephemeroptera fauna is represented by over 3,000 described species in 42 families and more than 400 genera. The highest generic diversity occurs in the Neotropics, with a correspondingly high species diversity, while the Palaearctic has the lowest generic diversity, but a high species diversity. Such distribution patterns may relate to how long evolutionary processes have been carrying on in isolation in a bioregion. Over an extended period, there may be extinction of species, but evolution of more genera. Dramatic extinction events such as the K-T mass extinction have affected current mayfly diversity and distribution. Climatic history plays an important role in the rate of speciation in an area, with regions which have been climatically stable over long periods having fewer species per genus, when compared to regions subjected to climatic stresses, such as glaciation. A total of 13 families are endemic to specific bioregions, with eight among them being monospecific. Most of these have restricted distributions which may be the result of them being the relict of a previously more diverse, but presently almost completely extinct family, or may be the consequence of vicariance events, resulting from evolution due to long-term isolation.
Keywords	Ephemeroptera ; introgression
Language	English
Dates of publication	2008-01
Size	p. 339-350.
Publisher	Springer Netherlands
Publishing place	Dordrecht
Document type	Article
ZDB-ID	214428-1
ISSN	1573-5117 ; 0018-8158
ISSN (online)	1573-5117
ISSN	0018-8158
DOI	10.1007/s10750-007-9028-y
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Cryptic variation in an ecological indicator organism: mitochondrial and nuclear DNA sequence data confirm distinct lineages of Baetis harrisoni Barnard (Ephemeroptera: Baetidae) in southern Africa.

Pereira-da-Conceicoa, Lyndall L / Price, Benjamin W / Barber-James, Helen M / Barker, Nigel P / de Moor, Ferdy C / Villet, Martin H

BMC evolutionary biology

2012 Volume 12, Page(s) 26

Abstract: Background: Baetis harrisoni Barnard is a mayfly frequently encountered in river studies across Africa, but the external morphological features used for identifying nymphs have been observed to vary subtly between different geographic locations. It has ... ...

Abstract	Background: Baetis harrisoni Barnard is a mayfly frequently encountered in river studies across Africa, but the external morphological features used for identifying nymphs have been observed to vary subtly between different geographic locations. It has been associated with a wide range of ecological conditions, including pH extremes of pH 2.9-10.0 in polluted waters. We present a molecular study of the genetic variation within B. harrisoni across 21 rivers in its distribution range in southern Africa. Results: Four gene regions were examined, two mitochondrial (cytochrome c oxidase subunit I [COI] and small subunit ribosomal 16S rDNA [16S]) and two nuclear (elongation factor 1 alpha [EF1α] and phosphoenolpyruvate carboxykinase [PEPCK]). Bayesian and parsimony approaches to phylogeny reconstruction resulted in five well-supported major lineages, which were confirmed using a general mixed Yule-coalescent (GMYC) model. Results from the EF1α gene were significantly incongruent with both mitochondrial and nuclear (PEPCK) results, possibly due to incomplete lineage sorting of the EF1α gene. Mean between-clade distance estimated using the COI and PEPCK data was found to be an order of magnitude greater than the within-clade distance and comparable to that previously reported for other recognised Baetis species. Analysis of the Isolation by Distance (IBD) between all samples showed a small but significant effect of IBD. Within each lineage the contribution of IBD was minimal. Tentative dating analyses using an uncorrelated log-normal relaxed clock and two published estimates of COI mutation rates suggest that diversification within the group occurred throughout the Pliocene and mid-Miocene (~2.4-11.5 mya). Conclusions: The distinct lineages of B. harrisoni correspond to categorical environmental variation, with two lineages comprising samples from streams that flow through acidic Table Mountain Sandstone and three lineages with samples from neutral-to-alkaline streams found within eastern South Africa, Malawi and Zambia. The results of this study suggest that B. harrisoni as it is currently recognised is not a single species with a wide geographic range and pH-tolerance, but may comprise up to five species under the phylogenetic species concept, each with limited pH-tolerances, and that the B. harrisoni species group is thus in need of taxonomic review.
MeSH term(s)	Animals ; Cell Nucleus/genetics ; Genetic Variation ; Insecta/classification ; Insecta/cytology ; Insecta/genetics ; Mitochondria/genetics ; Phylogeny ; South Africa
Language	English
Publishing date	2012-02-29
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2041493-6
ISSN	1471-2148 ; 1471-2148
ISSN (online)	1471-2148
ISSN	1471-2148
DOI	10.1186/1471-2148-12-26
Database	MEDical Literature Analysis and Retrieval System OnLINE

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