Topic
Glomeris
About: Glomeris is a research topic. Over the lifetime, 39 publications have been published within this topic receiving 701 citations.
Papers
TL;DR: It is shown that groups of neural precursors, rather than single cells as in insects, invaginate from the ventral neuroectoderm in a manner similar to that in the spider, which is compatible with the possibility of a chelicerate-myriapod sister group relationship.
Abstract: Molecular data suggest that myriapods are a basal arthropod group and may
even be the sister group of chelicerates. To find morphological indications
for this relationship we have analysed neurogenesis in the myriapod
Glomeris marginata (Diplopoda). We show here that groups of neural
precursors, rather than single cells as in insects, invaginate from the
ventral neuroectoderm in a manner similar to that in the spider: invaginating
cell groups arise sequentially and at stereotyped positions in the ventral
neuroectoderm of Glomeris, and all cells of the neurogenic region
seem to enter the neural pathway. Furthermore, we have identified an
achaete-scute , a Delta and a Notch homologue in
Glomeris. The genes are expressed in a pattern similar to the spider
homologues and show more sequence similarity to the chelicerates than to the
insects. We conclude that the myriapod pattern of neural precursor formation
is compatible with the possibility of a chelicerate-myriapod sister group
relationship.
116 citations
TL;DR: In North Africa, the genus Glomeris is shown to encompass 11 species, all of which are keyed, and this is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract: In North Africa, the genus Glomeris is shown to encompass 11 species, all of which are keyed. Th ese include: G. troglokabyliana sp. n. from several caves in Algeria, G. monostriata sp. n. from a cave in Libya, G. colorata sp. n., an epigean species from Tunisia, G. anisosticta Brandt, 1841 (still a nomen inquirendum) from Algeria, G. brolemanni Schubart, 1960 from Morocco, G. carthaginiensis Schubart, 1953 (stat. n., elevated from subspecifi c rank) from Tunisia, G. fl avomaculata Lucas, 1846 from Algeria, G. klugii Brandt, 1833 (with G. marmorata Brandt, 1833, G. fuscomarmorata Lucas, 1846, and G. maculosa Verhoeff , 1921 as new junior subjective synonyms) from Algeria and Tunisia, G. mohamedanica Attems, 1900 from TuniZooKeys 12: 47-86 (2009) doi: 10.3897/zookeys.12.179 www.pensoftonline.net/zookeys Copyright Sergei I. Golovatch et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Launched to accelerate biodiversity research A peer-reviewed open-access journal
87 citations
TL;DR: The results are discussed from the viewpoint of conserving the pool of millipede and woodlouse species and of maintaining the abundance of saprophagous macroarthropods in the region's ecosystems.
Abstract: Millipedes and woodlice were sampled at 27 sites in a mosaic landscape in order to establish the extent to which the macroarthropod community changed with different plant formations. Multivariate analyses conducted on abundance data for ten species revealed four main types of macroarthropod communities. This classification was highly correlated with vegetation structure and particularly the degree of openness of the sites. Communities dominated by Ommatoiulus rutilans (Julidae) occurred in open grassland; those dominated by Glomeris marginata (Glomeridae) plus Porcellio gallicus (Porcellionidae) were found at the least open sites, with a high oak cover; communities with a high proportion of the endemic glomerid Glomeris annulata occurred in semi-open sites with a substantial cover of shrubs. Species diversity was significantly higher at the semi-open sites, this being interpreted as an edge effect. Population density and biomass were lower at wooded sites. In the context of a regional trend towards woodland expansion, the results are discussed from the viewpoint of conserving the pool of millipede and woodlouse species and of maintaining the abundance of saprophagous macroarthropods in the region's ecosystems.
60 citations
Journal Article•
38 citations
TL;DR: The Cylindroiulus madeirae group and Dolichoiulus show a high degree of diversity of structure (size, colour, leg length etc.) and habitat (laurisilva, xeric habitats, caves).
Abstract: Endemic species swarms constitute large fractions of the millipede faunas of Madeira (29 species of the Cylindroiulus madeirae group, plus six species of Acipes, out of a total of 60 species) and the Canary Islands (46 species of Dolichoiulus, plus four species of the Glomeris alluaudi-group, out of a total of about 79 species) The poorer faunas of the Azores (22 species) and the Cape Verde Islands (15 species) in contrast only include a few endemics The Cylindroiulus madeirae group and Dolichoiulus show a high degree of diversity of structure (size, colour, leg length etc) and habitat (laurisilva, xeric habitats, caves) The C madeirae group, unlike Dolichoiulus, is strongly concentrated in the laurisilva In this habitat, microhabitat differentiation is pronounced in both swarms
33 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 1 |
| 2019 | 1 |
| 2018 | 1 |
| 2016 | 1 |
| 2015 | 2 |
| 2014 | 1 |