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Journal articles on the topic 'Oniscidean isopods'

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Published: 10 December 2022

Last updated: 21 February 2023

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1

Harris, Zechariah C., and Jonathan C. Wright. "The physiology of Venezillo arizonicus (Isopoda, Armadillidae): metabolism and thermal tolerance." Crustaceana 94, no. 2 (February 15, 2021): 159–75. http://dx.doi.org/10.1163/15685403-bja10026.

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Abstract Venezillo arizonicus (Mulaik & Mulaik, 1942) is the only oniscidean isopod native to the Southwest Desert Province of North America. In accordance with its desert habitat, we hypothesized that V. arizonicus would have a higher upper lethal temperature than mesic oniscideans. If oniscidean thermal tolerance is limited by an oxygen consumption-uptake mismatch (physiological hypoxia), as indicated by recent work with other land isopods, we further hypothesized that V. arizonicus would possess highly efficient pleopodal lungs, as defined by its capacity for metabolic regulation in reduced . Other adaptations to counter oxygen limitation at high temperatures could include reduced temperature sensitivity of metabolism (low ) and an overall reduction in metabolic rate. Thermal tolerance was measured using the progressive method of Cowles & Bogert and the catabolic rate of animals () was measured as a function of temperature and . The critical thermal maximum (CTmax) of winter-acclimatized animals was 43.0 ± 0.85°C, 1.6-2.6°C higher than published values for summer-acclimatized mesic oniscideans. The catabolic rate at 25°C was 1.50 ± 0.203 μl min−1 g−1, markedly lower than values determined for mesic Oniscidea (4-6 μl min−1 g−1) and was unaffected by hypoxia as low as 2% O2 (ca. 2 kPa). Catabolism was, however, quite sensitive to temperature, showing a mean of 2.58 over 25-42°C. The efficient pleopodal lungs and low metabolic rate of V. arizonicus will both tend to mitigate physiological hypoxia, consistent with the species’ high CTmax. A low catabolic rate may also be an adaptation to low habitat productivity and seasonally constrained activity patterns.

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2

Javidkar, Mohammad, Steven J. B. Cooper, Rachael A. King, William F. Humphreys, and Andrew D. Austin. "Molecular phylogenetic analyses reveal a new southern hemisphere oniscidean family (Crustacea : Isopoda) with a unique water transport system." Invertebrate Systematics 29, no. 6 (2015): 554. http://dx.doi.org/10.1071/is15010.

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A significant diversity of terrestrial oniscidean isopods was recently discovered in the subterranean ‘calcrete islands’ of Western Australia, but the species and higher-level systematic status of much of the fauna are currently uncertain. Here we focus on one group of species that was initially assigned to the genus Trichorhina (Platyarthridae), based on several shared characters, and investigate the phylogenetic relationships of these species to 21 oniscidean genera, including 13 known families, using 18S rDNA sequence data. We then present phylogenetic analyses using 28S-only and combined 18S, 28S rDNA and mitochondrial cytochrome c oxidase subunit I (COI) data for a more restricted sampling of taxa, and present results for a detailed morphological study of the antennae and other cephalic structures of exemplar taxa. Bayesian and maximum likelihood analyses of the extended 18S-only, the 28S-only and multi-gene datasets provide strong evidence for a distinct well-supported monophyletic group comprising the new Western Australian and one South American taxon. This clade is unrelated to all included members of Platyarthridae, which appears to be polyphyletic, and it forms a distinct group relative to other oniscidean families. Given these findings and the results of the morphological study, a new southern hemisphere oniscidean family, Paraplatyarthridae Javidkar & King, fam. nov. is erected based on Paraplatyarthrus subterraneus Javidkar & King, gen. & sp. nov. (type genus and species), and several undescribed taxa which occur in the arid (terrestrial and subterranean) regions of Western Australia and subtropical South America. Paraplatyarthridae is distinguishable from all other oniscidian families on a combination of character states including, among others, the presence of fan-like scale setae on the dorsal body, and the ventral second antenna with leaf-like scale setae and a furrow containing elongated hair-like capillary setae that form part of a water conducting system unique within Oniscidea. This study has important implications for the higher-level classification of oniscidean crustaceans and points to the need for a more detailed molecular phylogeny that includes a comprehensive sampling of southern hemisphere taxa.

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3

Wright, Jonathan C., and Anne Yoshizawa. "Ionic Composition and Ion Provisioning in Marsupial Fluid of Terrestrial Isopods (Isopoda, Oniscidea)." Crustaceana 84, no. 11 (2011): 1307–24. http://dx.doi.org/10.1163/156854011x594803.

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AbstractThe marsupium of the primarily terrestrial isopod sub-order Oniscidea is modified from the basal marine design and represents one of the key evolutionary innovations enabling the invasion of land habitats. In the Ligiidae, the marsupial chamber is provisioned with water from the external environment via a capillary channel formed from the apposed 6th and 7th pereiopods. The other oniscidean families possess a 'closed' marsupium, isolated from the pleural water-conducting system and provisioned with water and ions by sternal cotyledons. How these different modes of fluid provisioning influence the ionic composition of marsupial fluid and its osmotic and ionic relationship to the haemolymph remains essentially unstudied. We analysed the ionic composition (Na+, K+, Ca2+, Cl–, pH) of marsupial fluid and haemolymph in 4 species of Oniscidea: Ligia occidentalis (Ligiidae), Ligidium lapetum (Ligiidae), Alloniscus perconvexus (Alloniscidae), and Armadillidium vulgare (Armadillidiidae). In all four species, ion concentrations show a broad similarity between marsupial fluid and haemolymph, but with elevated potassium concentrations in the 'closed'-marsupium species. The sternal integument of Armadillidium vulgare is permeable to inulin and the volume of the combined marsupial fluid and haemolymph is not significantly enlarged compared to the haemolymph of non-gravid females. Accordingly, the 'closed' marsupium of A. vulgare can be viewed as a functional subdivision of the haemolymph space. In Ligidium lapetum, marsupial water is derived from external freshwater sources, but marsupial fluid [Na+] and [Cl–]are actually significantly higher than haemolymph values. This species thus possesses an effective means of ion provisioning, paralleling that seen in the 'closed' marsupial species.

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4

Hornung, Elisabeth. "Evolutionary adaptation of oniscidean isopods to terrestrial life: Structure, physiology and behavior." Terrestrial Arthropod Reviews 4, no. 2 (June 1, 2011): 95–130. http://dx.doi.org/10.1163/187498311x576262.

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5

Cooper, Steven J. B., Kathleen M. Saint, Stefano Taiti, Andrew D. Austin, and William F. Humphreys. "Subterranean archipelago: mitochondrial DNA phylogeography of stygobitic isopods (Oniscidea:Haloniscus) from the Yilgarn region of Western Australia." Invertebrate Systematics 22, no. 2 (2008): 195. http://dx.doi.org/10.1071/is07039.

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The arid Yilgarn region of Western Australia contains numerous isolated calcrete aquifers, within which a diverse subterranean fauna has been discovered. Genetic and morphological studies of subterranean dytiscid beetles and amphipods have suggested that individual calcretes are equivalent to closed island habitats, which have been isolated for millions of years. Here we test this ‘subterranean island’ hypothesis further by phylogeographic analyses of subterranean oniscidean isopods (Haloniscus), using mitochondrial DNA (mtDNA) sequence data derived from the cytochrome c oxidase subunit I gene. Phylogenetic and population genetic analyses provided evidence for significant phylogeographic structuring of isopod populations, with evidence for at least 24 divergent mtDNA lineages, each restricted in their distribution to a single calcrete aquifer. The high level of divergence among calcrete populations (generally >25%) and several mtDNA lineages within calcretes (>16%) suggests that each lineage is likely to represent a distinct species. These analyses, together with comparative phylogeographic data from dytiscid beetles and amphipods, provide strong support for the ‘subterranean island’ hypothesis, applying to both air-breathing and fully aquatic arthropod groups. The finding of several epigean lineages that grouped with stygobitic Haloniscus populations, and the overall phylogeographic structure of populations, suggests that the majority of stygobitic species evolved within individual calcretes following independent colonisation by epigean ancestors.

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6

Broly, Pierre, María De Lourdes Serrano-Sánchez, and Francisco J. Vega. "Diversity of the Crinocheta (Crustacea, Isopoda, Oniscidea) from Early Miocene Chiapas amber, Mexico." Revista Mexicana de Ciencias Geológicas 35, no. 3 (November 20, 2018): 203–14. http://dx.doi.org/10.22201/cgeo.20072902e.2018.3.639.

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Currently, the Onisicdea (terrestrial isopods) is a massive Crustacea suborder of more than 3 700 species, but our knowledge of their paleodiversity is poor. In this paper, we present ten fossils of Crinocheta, the largest clade within the Onisicdea, discovered in Early Miocene (23 Ma) amber of Chiapas. We described three new genera and six new species including Palaeolibrinus spinicornis gen. nov. sp. nov., Armadilloniscus miocaenicus sp. nov., Archeostenoniscus robustus gen. nov. sp. nov., Archeostenoniscus mexicanus sp. nov., Palaeospherarmadillo mazanticus gen. nov. sp. nov., and Palaeospherarmadillo rotundus sp. nov. This study represents the first fossil record of the family Detonidae, Olibrinidae, and “Stenoniscidae”. From a paleoenvironmental reconstruction perspective, the oniscidean fauna presented here supports a particularly wet paleoenvironment, under brackish water influence, similar to an estuary.

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7

Javidkar, Mohammad, Steven J. B. Cooper, Rachael A. King, William F. Humphreys, Terry Bertozzi, Mark I. Stevens, and Andrew D. Austin. "Molecular systematics and biodiversity of oniscidean isopods in the groundwater calcretes of central Western Australia." Molecular Phylogenetics and Evolution 104 (November 2016): 83–98. http://dx.doi.org/10.1016/j.ympev.2016.07.026.

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8

Doublet, Vincent, Roland Raimond, Frédéric Grandjean, Alexandra Lafitte, Catherine Souty-Grosset, and Isabelle Marcadé. "Widespread atypical mitochondrial DNA structure in isopods (Crustacea, Peracarida) related to a constitutive heteroplasmy in terrestrial species." Genome 55, no. 3 (March 2012): 234–44. http://dx.doi.org/10.1139/g2012-008.

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Metazoan mitochondrial DNA (mtDNA) is generally composed of circular monomeric molecules. However, a few exceptions do exist and among them two terrestrial isopods Armadillidium vulgare and Porcellionides pruinosus have an atypical mtDNA composed of linear monomers associated with circular “head-to-head” dimers: a very unusual structure for animal mtDNA genome. To assess the distribution of this atypical mtDNA among isopods, we performed RFLP and Southern blot analyses on mtDNA of 16 terrestrial (Oniscidea family) and two aquatic isopod species: the marine Sphaeroma serratum (suborder Flabellifera, sister group of Oniscidea) and the freshwater Asellus aquaticus (Asellota, early derived taxon of isopod). The atypical mtDNA structure was observed in 15 terrestrial isopod species and A. aquaticus, suggesting a wide distribution of atypical mtDNA among isopods. However, a typical metazoan mtDNA structure was detected in the marine isopod S. serratum and the Oniscidea Ligia oceanica . Our results suggest two possible scenarios: an early origin of the atypical mtDNA in isopods followed by reversion to the typical ancestral mtDNA structure for several species, or a convergent appearance of the atypical mtDNA structure in two isopod suborders. We compare this distribution of the atypical mtDNA structure with the presence of a heteroplasmy also observed in the mtDNA of several terrestrial isopod species. We discuss if this transmitted heteroplasmy is vectored by the atypical mtDNA and its impact on the maintenance of the atypical mtDNA in isopods.

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9

Warburg, M. R. "Cost of Breeding in Oniscid Isopods: A Partial Review." Crustaceana 84, no. 12-13 (2011): 1561–80. http://dx.doi.org/10.1163/156854011x607006.

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AbstractOniscid isopods (Isopoda, Oniscidea) are able to provide extra developmental time to their young. This is done by having an internal oviposition: mature eggs are oviposited into the marsupium (brood pouch) where they undergo ermbryogenesis. That way the female increases the energetic cost, reflected in the loss in body mass during gestation and incubation (marsupial embryogenesis). This is the reproductive allocation (RA). Some isopod species extend this energetic support to their young by feeding and protecting them. This is the parental investment (PI). These subjects are discussed and reviewed. The production of young during the isopods' lifetime or the reproductive potential of the species (RP) are of major significance for the survival of a species. The RP depends on longevity and both breeding patterns and strategies of the species of isopods. These subjects are discussed and reviewed.

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10

Lisboa, Jonathas Teixeira, Erminda da Conceição Guerreiro Couto, Pollyanna Pereira Santos, Jacques Hubert Charles Delabie, and Paula Beatriz Araujo. "Terrestrial isopods (Crustacea: Isopoda: Oniscidea) in termite nests (Blattodea: Termitidae) in a cocoa plantation in Brazil." Biota Neotropica 13, no. 3 (September 2013): 393–97. http://dx.doi.org/10.1590/s1676-06032013000300039.

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Various animals live in termite nests as secondary occupants. Among them are terrestrial isopods. We found five species of terrestrial isopods (Oniscidea) in 17 of 34 termite nests of Nasutitermes in a cocoa plantation near Ilhéus, Bahia, Brazil (in 2 aging and 15 abandoned nests). The 14 active, 1 aging and 2 abandoned nests bore no isopods. The oniscideans were Atlantoscia rubromarginata, an undescribed species of Atlantoscia (Philosciidae), Pudeoniscus birabeni, P. obscurus (Pudeoniscidae) and Neotroponiscus carolii (Bathytropidae). Of the 146 individuals collected, 122 were A. rubromarginata. Due to the absence of isopods in active nests, these terrestrial isopods are considered termitariophilous.

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11

KARAMAN, I. "n. sp., a rhithral oniscidean isopod (Isopoda: Oniscidea: Trichoniscidae) from Macedonia." Organisms Diversity & Evolution 3, no. 3 (2003): 239–40. http://dx.doi.org/10.1078/1439-6092-00080.

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12

Bedek, Jana, Stefano Taiti, Helena Bilandžija, Emma Ristori, and Mariella Baratti. "Molecular and taxonomic analyses in troglobiotic Alpioniscus (Illyrionethes) species from the Dinaric Karst (Isopoda: Trichoniscidae)." Zoological Journal of the Linnean Society 187, no. 3 (August 27, 2019): 539–84. http://dx.doi.org/10.1093/zoolinnean/zlz056.

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Abstract Species richness of terrestrial isopods is high in caves of the Dinaric Karst, which hosts ~10% of the world’s nominal oniscidean troglobionts. The most widespread taxon is the southern European genus Alpioniscus, which consists of two subgenera: Alpioniscus s.s. and Illyrionethes. Before this study, 14 nominal troglobiotic Illyrionethes taxa were recorded from the Dinaric Karst. Our molecular analyses using two mitochnodrial DNA (16S rRNA and COI) fragments and a nuclear gene (H3) fragment on all known Dinaric taxa identified three distinct lineages: strasseri-, heroldi- and magnus-lineage. Our results confirmed the validity of most nominal species. The exceptions are Alpioniscus balthasari, which consists of two different species including Alpioniscus iapodicus, and Alpioniscus heroldi, which is paraphyletic with respect to Alpioniscus bosniensis. The strasseri-lineage was highly supported by all phylogenetic methods used; therefore, we performed a detailed morphological analysis to distinguish and characterize the species of this group. New morphological characters, such as body part ratios, are proposed for future species identification. In addition, we redescribe three known species (Alpioniscus strasseri, Alpioniscus christiani and Alpioniscus balthasari) and describe two new ones (Alpioniscus hirci sp. nov. and Alpioniscus velebiticus sp. nov.). As a result, 15 nominal species of Illyrionethes are currently known from the Dinaric Karst.

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13

Al-Kandari, Manal Abdulrahman, Valiallah Khalaji-Pirbalouty, Hadeel Abdulkhaliq, and Weizhong Chen. "Diversity and distribution of the Isopoda (Crustacea, Peracarida) of Kuwait, with an updated checklist." ZooKeys 1080 (January 5, 2022): 107–33. http://dx.doi.org/10.3897/zookeys.1080.71370.

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Thirty-eight species of Isopoda, belonging to 13 families and 29 genera, are listed from Kuwait based on previous literature records (of 17 species) and collections carried out along Kuwait’s coastal and subtidal zones during the present study. The majority of species belongs to the suborder Cymothoida (23), followed by Sphaeromatidea (9), Oniscidea (3), Valvifera (2), and Asellota (1). In total, 25 species were collected and identified from 12 families and 22 genera from Kuwaiti coastal and subtidal areas. These include eight families, 15 genera, and 21 species recorded for the first time from Kuwait. Isopod diversity was highest in the sandy rock areas, including southern Kuwait, particularly in Al-Khiran and Al-Nuwaiseeb, and in mixed habitat (muddy, rocky, and sandy) intertidal transects such as in Failaka Island. The species number increased from the subtidal and lowest zones into the high tidal zone. Isopods were found in sandy substrata, among shells, cobbles, rocks, dead corals, and algae.

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14

Gentile, Gabriele, Roberto Argano, and Stefano Taiti. "Insights into the late-Sixties taxocenosis of Oniscidea from the Pontine islands (West Mediterranean) (Peracarida: Isopoda)." Fragmenta Entomologica 51, no. 2 (November 15, 2019): 217–23. http://dx.doi.org/10.4081/fe.2019.369.

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We report and discuss faunistic data of Oniscidea inhabiting the Pontine islands, a group of five small volcanic islands and several islets in the Tyrrhenian Sea, located about 60 km from the Italian mainland. Data here presented were primarily obtained from the examination of the material collected during a three-year (1965-1968) research program supported by the Italian National Council of Research and aimed at investigating Mediterranean small island faunas, including Oniscidea. Despite the sampling was not specifically directed at Oniscidea, these data may provide insights into the structure of the Oniscidean taxocenosis of the islands as it existed fifty years ago. Thirty-five species belonging to 11 families, 8 ecological and 7 biogeographical classes were found on these islands. Such number of species of Oniscidea is very high, if we consider the low number of islands and their small sizes. Changes in climate and environmental conditions occurred in the last fifty years would call for a new investigation.

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15

Wood, Camila T., Silvio S. Nihei, and Paula B. Araujo. "Woodlice and their parasitoid flies: revision of Isopoda (Crustacea, Oniscidea) – Rhinophoridae (Insecta, Diptera) interaction and first record of a parasitized Neotropical woodlouse species." ZooKeys 801 (December 3, 2018): 401–14. http://dx.doi.org/10.3897/zookeys.801.26052.

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Terrestrial isopods are soil macroarthropods that have few known parasites and parasitoids. All known parasitoids are from the family Rhinophoridae (Insecta: Diptera). The present article reviews the known biology of Rhinophoridae flies and presents the first record of Rhinophoridae larvae on a Neotropical woodlouse species. We also compile and update all published interaction records. The Neotropical woodlouseBalloniscusglaberwas parasitized by two different larval morphotypes of Rhinophoridae. Including this new record, there are 18 Isopoda species known to be parasitized and 13 Rhinophoridae species with known hosts, resulting in 35 interactions. There are a total of 53 interaction records from Holarctic and Neotropical countries. Of the 18 known isopod hosts, only five species have more than one parasitoid, including the new Neotropical host record presented in this work.

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16

Kight, Scott. "Reproductive ecology of terrestrial isopods (Crustacea: Oniscidea)." Terrestrial Arthropod Reviews 1, no. 2 (2009): 95–110. http://dx.doi.org/10.1163/187498308x414724.

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AbstractTerrestrial isopods (Crustacea: Oniscidea) are important detritivores in many ecosystems. Because reproductive success and population dynamics of the Oniscidea depend on diverse biotic and abiotic environmental factors, the effects of global climate change on their biology may be significant. Although few studies have examined the relationship between climate change and population ecology in terrestrial isopods, much is known about their environment, genetics, physiology, behavior, life history, population biology, and evolutionary patterns. This review addresses the influence of biotic and abiotic environmental factors on terrestrial isopod reproduction. Significant biotic factors include microorganism-mediated sex determination, mate choice, sperm competition, maternal effects, food availability, and predation. Significant abiotic factors include temperature and moisture regimes, photoperiod, altitude, latitude, and microhabitat diversity. Studies of these factors reveal general patterns, as well as informative exceptions, in the ways different oniscid species, as well as different populations within a species, respond to environmental variation.

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17

Bragina, Tatyana М., and Dilyara D. Khisametdinova. "The woodlouse (Isopoda: Oniscidea) fauna of steppe habitats in the Kostanay region of Kazakhstan." Hacquetia 17, no. 1 (June 1, 2018): 111–19. http://dx.doi.org/10.1515/hacq-2017-0016.

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Abstract This paper presents first materials on the fauna and distribution of the terrestrial isopods - woodlice (Oniscidea) inhabiting the central and southern parts of Kostanay Region (Kazakhstan, Northern and Southern Turgai), located in the steppe zone. Most of the specimens of woodlice were collected in the territory of the National Nature Reserve “Altyn Dala”, a new protected area (established in 2012) and in the area of the Naurzum National Nature Reserve (established in 1931, World Heritage Site of UNESCO), on the Stipa lessingiana dry steppe. The list of woodlice includes six species (Crustacea: Isopoda: Oniscidea), belonging to five genera and three families in the study area. Four species are recorded for the first time in Kazakhstan - Desertoniscus subterraneus Verhoeff, 1930, Parcylisticus dentifrons (Budde-Lund 1885), Porcellio scaber Latreille, 1804, and Protracheoniscus major (Dollfus 1903). Distribution characteristics are provided for all of those species recorded in the study area. For the territory of Kazakhstan, according to a literature data, currently 16 species of terrestrial isopods have been recorded.

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18

Appel, Carina, Aline F. Quadros, and Paula B. Araujo. "Marsupial extension in terrestrial isopods (Crustacea, Isopoda, Oniscidea)." Nauplius 19, no. 2 (December 2011): 123–28. http://dx.doi.org/10.1590/s0104-64972011000200003.

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19

Broly, Pierre, Pascal Deville, and Sébastien Maillet. "The origin of terrestrial isopods (Crustacea: Isopoda: Oniscidea)." Evolutionary Ecology 27, no. 3 (December 23, 2012): 461–76. http://dx.doi.org/10.1007/s10682-012-9625-8.

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20

Campos-Filho, Ivanklin Soares, Paula Beatriz Araujo, Maria Elina Bichuette, Eleonora Trajano, and Stefano Taiti. "Terrestrial isopods (Crustacea: Isopoda: Oniscidea) from Brazilian caves." Zoological Journal of the Linnean Society 172, no. 2 (September 26, 2014): 360–425. http://dx.doi.org/10.1111/zoj.12172.

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21

Sfenthourakis, Spyros. "New Species of Terrestrial Isopods (Isopoda, Oniscidea) From Greece." Crustaceana 63, no. 2 (1992): 199–209. http://dx.doi.org/10.1163/156854092x00587.

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22

Becking, Thomas, Carine Delaunay, Richard Cordaux, Jean-Marc Berjeaud, Christine Braquart-Varnier, and Julien Verdon. "Shedding Light on the Antimicrobial Peptide Arsenal of Terrestrial Isopods: Focus on Armadillidins, a New Crustacean AMP Family." Genes 11, no. 1 (January 14, 2020): 93. http://dx.doi.org/10.3390/genes11010093.

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In crustaceans, antimicrobial peptides (AMPs) are clustered into four major groups according to their amino acid composition and structure: (1) single-domain peptides containing cysteine residues such as anti-lipopolysaccharide-factor (ALF), (2) multi-domain or chimeric AMPs such as crustins, (3) non-conventional AMPs, and (4) linear single-domain AMPs. The majority of AMPs has been described in commercially exploited crustaceans, particularly decapods living in aquatic environments (crab, shrimp, lobster, and crayfish). Here, we aimed at establishing the AMPs repertoire of terrestrial isopods (Oniscidea), an original suborder of crustaceans adapted to life outside of the aquatic environment. Using transcriptomic data from 21 species, we identified 110 ALF and 73 crustin sequences. We also characterized the full-length sequence of armadillidins from 17 species, similar to the AMP previously described in the terrestrial isopod Armadillidium vulgare. Furthermore, we tested the antimicrobial activity of three armadillidin peptides characterized from three distantly related species. This analysis revealed similar activity spectra against pathogens, despite extensive structural variation among the tested peptides. In addition to conventional crustacean AMPs, our work highlights armadillidins as a new and independent family of AMPs specific to the Oniscidea, thus opening new perspectives concerning the study of the immune system of terrestrial isopods.

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23

Norden, Arnold W. "The Terrestrial Isopods (Crustacea: Isopoda: Oniscidea) of Plummers Island, Maryland." Bulletin of the Biological Society of Washington 15, no. 1 (May 2008): 41–43. http://dx.doi.org/10.2988/0097-0298(2008)15[41:tticio]2.0.co;2.

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24

Béjaoui, Mustapha, Noureddine Khalloufi, and Samir Touaylia. "Effect of static magnetic field on terrestrial isopods (Isopoda: Oniscidea)." Journal of Crustacean Biology 39, no. 2 (January 4, 2019): 98–102. http://dx.doi.org/10.1093/jcbiol/ruy104.

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25

ZIMMER, MARTIN. "Nutrition in terrestrial isopods (Isopoda: Oniscidea): an evolutionary-ecological approach." Biological Reviews of the Cambridge Philosophical Society 77, no. 4 (November 2002): 455–93. http://dx.doi.org/10.1017/s1464793102005912.

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26

Wood, Camila Timm, and Martin Zimmer. "Can terrestrial isopods (Isopoda: Oniscidea) make use of biodegradable plastics?" Applied Soil Ecology 77 (May 2014): 72–79. http://dx.doi.org/10.1016/j.apsoil.2014.01.009.

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27

Waller, Analisa, and Ana Verdi. "Reproductive Patterns of Terrestrial Isopods (Crustacea, Isopoda, Oniscidea) from Uruguay." International Journal of Biology 8, no. 4 (August 23, 2016): 12. http://dx.doi.org/10.5539/ijb.v8n4p12.

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<em>Armadillidium vulgare</em> (Latreille, 1884) and <em>Armadillidium nasatum </em>(Schultz, 1961) are among the most common species of terrestrial isopods in Uruguay. The reproductive pattern of these species was studied, for first time, on a natural population at Department of San Jose (Uruguay) from June 2010 to July 2011. A total of 9136 individuals were sampled, of these 7010 were <em>A. </em><em>vulgare</em> and 2126 were <em>A.nasatum.</em> Adults of <em>A. vulgare</em> were present throughout the year and juveniles appeared from February to November. Juveniles and adults of <em>A. nasatum</em>appeared from January to October, and practically disappeared from November to December. For both species ovigerous females were collected from spring to summer (October to March), this would indicate a seasonal reproduction followed by a sexual rest. In <em>A. vulgare</em> reproductive females cephalothorax width that varied between 1.7 to 3 mm, average fecundity was equal to 39 ± 5 eggs and average fertility was equal to 27 ± 4. In <em>A. nasatum</em> cephalothorax width of reproductive females oscillated between 1.5 to 2.9 mm and the average fecundity was 44 ± 5 eggs. For both species, fecundity and fertility were positively correlated with the size of the females. The incubation period ( = 13 days) and the mancas born ( = 21) were similar for both species.

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Brigić, Andreja, Ivan Antonović, Antun Alegro, Vedran Šegota, and Jelena Bujan. "Terrestrial isopods (Isopoda: Oniscidea) as unexpected inhabitants of extreme habitats." European Journal of Soil Biology 82 (September 2017): 66–71. http://dx.doi.org/10.1016/j.ejsobi.2017.08.009.

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29

Zimmer, Martin. "Why do male terrestrial isopods (Isopoda: Oniscidea) not guard females?" Animal Behaviour 62, no. 4 (October 2001): 815–21. http://dx.doi.org/10.1006/anbe.2001.1845.

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30

Hornung, Elisabeth, Andrea Kásler, and Zsolt Tóth. "The role of urban forest patches in maintaining isopod diversity (Oniscidea)." ZooKeys 801 (December 3, 2018): 371–88. http://dx.doi.org/10.3897/zookeys.801.22829.

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Compositional changes in natural communities associated with anthropogenic influence often lead to localised extinctions and biodiversity loss. Soil invertebrates are also threatened by urbanisation due to habitat fragmentation, vegetation changes and management, soil alteration, degradation, and disappearing shelter sites. The aim was to assess terrestrial isopod (Oniscidea) assemblages in differently degraded urban forest patches of a metropolitan area (Budapest, Hungary). Study sites were compared by their species richness, composition and the relevant background factors (soil properties, dead wood, litter characteristics, and canopy closure). The degree of urban disturbance was expressed using an urbanisation index (UI) based on built-up density and vegetation cover. The isopods were identified to species level, and were qualified by their habitat preference and naturalness index (TINI). Average Rarity Index (ARI), derived from TINIs provided information on the degree of naturalness/disturbance of each habitat. Altogether 14 isopod species were collected from 23 sample sites. Urbanisation indirectly affected on the composition of isopod assemblages through the quantity of dead wood and soil plasticity. ARIs and UIs of sample sites were negatively correlated. Urban patches harboured habitat generalist, synanthropic and established introduced species with low naturalness value of assemblages. Areas with no or low anthropogenic disturbance maintained stable native, autochthonous assemblages that were characteristic of rural sites in the region. Transitional zones between rural and urban habitats usually maintained a mixed isopod fauna consisting of both urban and rural elements.

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31

TAITI, STEFANO, and ROBERTO ARGANO. "New species of terrestrial isopods (Isopoda: Oniscidea) from Sardinia." Zootaxa 2318, no. 1 (December 22, 2009): 38–55. http://dx.doi.org/10.11646/zootaxa.2318.1.5.

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Four new species of terrestrial isopods from Sardinia are described: Alpioniscus thanit sp. nov. (Trichoniscidae), Halophiloscia cristagalli sp. nov. (Halophilosciidae), Alloschizidium maymon sp. nov. and Alloschizidium magrinii sp. nov. (Armadillidiidae). Alpioniscus thanit and Alloschizidium magrinii were collected in endogean environments, Halophiloscia cristagalli on granitic beaches of small islands in the northern and western part of Sardinia, and Alloschizidium maymon from a cave. The diagnostic features and the affinities of the new species are discussed.

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32

Pérez-Schultheiss, Jorge. "State of Knowledge on Terrestrial Isopods (Crustacea: Isopoda: Oniscidea) of Chile, with a Species Checklist." Boletín Museo Nacional de Historia Natural 58 (December 26, 2009): 51–66. http://dx.doi.org/10.54830/bmnhn.v58.2009.233.

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The first work that reviews the taxonomic knowledge of Oniscidea of Chile is presented. 11 families and 37 species are recorded from the country, 29 of them are native and eight introduced. Mostly works in Chilean oniscofauna are taxonomic studies; however, yet remain numerous problems to resolve and revisions of great part of the groups are needed. A species checklist with synonymic information is provided.

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33

Podgaiski, Luciana Regina, Aline Ferreira Quadros, Paula Beatriz Araujo, and Gilberto Gonçalves Rodrigues. "Neotropical woodlice (isopoda) colonizing leaf-litter of pioneer plants in a coal residue disposal environment." Revista Brasileira de Ciência do Solo 35, no. 3 (June 2011): 743–50. http://dx.doi.org/10.1590/s0100-06832011000300010.

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The irregular disposal of coal combustion residues has adverse impacts on terrestrial ecosystems. Pioneer plants and soil invertebrates play an important role in the recovery of these areas. The goal of this study was to investigate the colonization patterns of terrestrial isopods (Oniscidea) in leaf litter of three spontaneous pioneer plants (grass - Poaceae, shrub - Euphorbiaceae, tree - Anarcadiaceae) at sites used for fly ash or boiler slag disposal. The experiment consisted of eight blocks (four per disposal site) of 12 litter bags each (four per plant species) that were randomly removed after 6, 35, 70 or 140 days of field exposure. Three isopod species were found in the litter bags: Atlantoscia floridana (van Name, 1940) (Philosciidae; n = 116), Benthana taeniata Araujo & Buckup, 1994 (Philosciidae; n = 817) and Balloniscus sellowii (Brandt, 1833) (Balloniscidae; n = 48). The isopods colonized the three leaf-litter species equally during the exposure period. However, the pattern of leaf-litter colonization by these species suggests a conflict of objectives between high quality food and shelter availability. The occurrence of A. floridana and the abundance and fecundity of B. taeniata were influenced by the residue type, indicating that the isopods have different degrees of tolerance to the characteristics of the studied sites. Considering that terrestrial isopods are abundant detritivores and stimulate the humus-forming processes, it is suggested that they could have an indirect influence on the soil restoration of this area.

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Leistikow, Andreas, and Johann Wolfgang Wägele. "Checklist of the terrestrial isopods of the new world (Crustacea, Isopoda, Oniscidea)." Revista Brasileira de Zoologia 16, no. 1 (March 1999): 1–72. http://dx.doi.org/10.1590/s0101-81751999000100001.

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35

Csonka, Diána, Katalin Halasy, and Elisabeth Hornung. "Histological studies on the marsupium of two terrestrial isopods (Crustacea, Isopoda, Oniscidea)." ZooKeys 515 (July 30, 2015): 81–92. http://dx.doi.org/10.3897/zookeys.515.9401.

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36

Manicastri, C. "A new species of terrestrial isopods from ecuador:Neosanfilippia zoiai(Isopoda, Oniscidea, Scleropactidae)." Studies on Neotropical Fauna and Environment 26, no. 1 (January 1991): 33–38. http://dx.doi.org/10.1080/01650529109360830.

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37

Mazzei, V., G. Longo, and M. V. Brundo. "Testis follicles ultrastructure of three species of terrestrial isopods (Crustacea, Isopoda Oniscidea)." Tissue and Cell 47, no. 5 (October 2015): 456–64. http://dx.doi.org/10.1016/j.tice.2015.07.008.

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38

Tuf, Ivan Hadrián, and Nelly Weissová. "Bug cemetery: a case study of terrestrial isopod distribution on a brick wall in the Czech Republic." ZooKeys 1101 (May 18, 2022): 191–201. http://dx.doi.org/10.3897/zookeys.1101.76132.

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Although terrestrial isopods (Oniscidea) are primarily soil- and surface-dwelling invertebrates, they can also be found on tree trunks and walls. This study evaluated distribution patterns of terrestrial isopods on a brick wall during the first hours of night in autumn. Four species of terrestrial isopods were recorded with Armadillidium versicolor being the dominant one. Terrestrial isopods were distributed from ground level up to a height of 2 m, but preferred a 70–80 cm height band. The highest number of active individuals was observed 3 h after astronomical dusk. Potential predators of terrestrial isopods were abundant during the same time and at the same height.

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39

Zimmermann, Bianca L., Ivanklin S. Campos-Filho, and Paula B. Araujo. "Integrative taxonomy reveals a new genus and new species of Philosciidae (Crustacea: Isopoda: Oniscidea) from the Neotropical region." Canadian Journal of Zoology 96, no. 5 (May 2018): 473–85. http://dx.doi.org/10.1139/cjz-2017-0289.

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Although new methods and data are conquering space in the field of taxonomy, such as integrative taxonomy, most terrestrial isopod species are still described based only on morphology. Species of the genus Atlantoscia Ferrara and Taiti, 1981 were the first and are the unique terrestrial isopods from the Neotropics for which a molecular phylogeny was already conducted. Previous results indicated that this genus could be paraphyletic, and a more detailed analysis would be required. Our aim was to reconstruct the phylogeny of Atlantoscia using mitochondrial and nuclear markers and test its monophyly by integrating molecular and morphological data. We observed that, indeed, Atlantoscia is paraphyletic. Atlantoscia ituberasensis Campos-Filho, Lisboa and Araujo, 2013 and Atlantoscia rubromarginata Araujo and Leistikow, 1999 were placed in a new genus of terrestrial isopods, Paratlantoscia gen. nov., together with a new species described in the present study, Paratlantoscia robusta sp. nov. The new genus is defined by the presence of specialized respiratory areas in the pleopod exopods and its validity is highly corroborated by molecular analyses and by biogeographic information. This study highlights the importance of multiple and complementary perspectives as a way to improve the quality of species hypothesis and associated descriptions.

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40

ZIMMERMANN, BIANCA LAÍS, IVANKLIN SOARES CAMPOS-FILHO, GIOVANNA MONTICELLI CARDOSO, SANDRO SANTOS, JOSÉ OTÁVIO AGUIAR, and PAULA BEATRIZ ARAUJO. "Two new species of Atlantoscia Ferrara & Taiti, 1981 (Isopoda: Oniscidea: Philosciidae) from southern Brazil described in the light of integrative taxonomy." Zootaxa 4482, no. 3 (September 19, 2018): 551. http://dx.doi.org/10.11646/zootaxa.4482.3.7.

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The use of molecular data in association with classical taxonomy has helped to alleviate the taxonomic impediment through the discovery, delimitation and description of new species. Terrestrial isopods are the largest suborder of Isopoda; however, there are very few active taxonomists in this group and a representative part of the terrestrial isopods world diversity remains unexplored. The genus Atlantoscia comprises five species in which diagnostic characters are few and show subtle differences among the species. The objective of this study was to delimit and describe two new species of the genus Atlantoscia from southern Brazil by using traditional taxonomy coupled with genetic information. Specimens were analyzed morphologically and by the aid of two molecular markers, mitochondrial COI and nuclear 18S rRNA. The validity of the new species Atlantoscia antennamaculata sp. nov. and Atlantoscia australis sp. nov. was corroborated, unambiguously, by morphological approach, phylogenetic analysis and species delimitation methods. Our study reinforces the fact that, despite the undeniable importance of comparative morphology in species discovery, new methods and data, particularly molecular ones, are becoming prominent and an integrative part of the taxonomy practice.

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41

Leistikow, Andreas. "Terrestrial isopods from Costa Rica and a redescription of Ischioscia variegata (Dollfus, 1893) (Crustacea: Isopoda: Oniscidea)." Canadian Journal of Zoology 75, no. 9 (September 1, 1997): 1415–64. http://dx.doi.org/10.1139/z97-768.

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Examination of a small collection of Oniscidea from Costa Rica revealed the presence of two species new to science (Ischioscia martinae sp.nov. and Scleropactes talamancensis sp.nov.). Further specimens from the collection of the United States National Museum were reexamined to reconsider the status of Philoscia muscorum (Scopoli, 1793) and Ischioscia variegata (Dollfus, 1893), both of which have been reported from Costa Rica. The specimens belong to two new species (Ischioscia muelleri sp.nov. and Ischioscia elongata sp.nov.). Redescriptions of Ligia baudiniana Milne Edwards, 1840 from the shores of both the Caribbean Sea and the Pacific Ocean and the type material of Ischioscia variegata (Dollfus, 1893) from Venezuela are also presented.

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42

Cupșa, Diana, Traian-Octavian Costea, Alfred-Ștefan Cicort-Lucaciu, Severus-Daniel Covaciu-Marcov, and Sára Ferenți. "Cuticle structure of Carpathian endemic species: Trachelipus trilobatus (Crustacea, Isopoda, Oniscidea) described with the scanning electron microscope." Studia Universitatis Babeş-Bolyai Biologia 67, no. 1 (June 22, 2022): 49–62. http://dx.doi.org/10.24193/subbbiol.2022.1.03.

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The cuticle is the interface between an animal and its environment; thus, it has a special importance. In Arthropods, the cuticle is not uniform, having numerous formations, which is also the case of epigeic terrestrial isopods. Our study presents data on cuticle surface morphology, obtained with a scanning electron microscope, of an endemic terrestrial isopod species, Trachelipus trilobatus. Here we present SEM images of some external morphological features of this species, which were previously described only at the light microscope. Although T. trilobatus was frequently encountered in caves, the aspect of its cuticle is characteristic for an epigeic isopod, presenting numerous micro-scales, spines, and tricorn sensilla, which are considered hygroreceptors. This fact proves that originally T. trilobatus is an epigeic species, which secondarily adapted to karst areas with caves. Nevertheless, it regularly leaves the caves and the limestone cracks and emerges on the soil surface. Therefore, T. trilobatus is able to receive information about environmental humidity, especially on the soil surface, which, when unfavorable, causes the species retreat into caves or cracks. Climatic fluctuations from the glacial periods could direct T. trilobatus to this environment and way of life, modifying its morphology, but not its cuticle.

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43

Wright, J. C., and J. Machin. "Atmospheric Water Absorption and the Water Budget of Terrestrial Isopods (Crustacea, Isopoda, Oniscidea)." Biological Bulletin 184, no. 2 (April 1993): 243–53. http://dx.doi.org/10.2307/1542232.

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44

Schmalfuss, Helmut. "Two new species and new records of terrestrial isopods (Isopoda: Oniscidea) from Oman." Stuttgarter Beiträge zur Naturkunde A 9, no. 1 (April 2016): 31–39. http://dx.doi.org/10.18476/sbna.v9.a3.

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45

Montesanto, Giuseppe, Domenico Caruso, and Bianca Maria Lombardo. "A new species and new records of terrestrial isopods from Sicily (Isopoda: Oniscidea)." Journal of Natural History 45, no. 31-32 (August 2011): 1925–35. http://dx.doi.org/10.1080/00222933.2011.573099.

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46

Gardini, Pietro, and Stefano Taiti. "New Species of Terrestrial Isopods (Crustacea, Isopoda, Oniscidea) from Liguria and Surrounding Regions, Northern Italy." Diversity 15, no. 1 (January 5, 2023): 68. http://dx.doi.org/10.3390/d15010068.

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Five new species of terrestrial isopods from Liguria and surrounding regions are described: Buddelundiella zoiai sp. n. (Buddelundiellidae), Sardoniscus marmoratus sp. n. (Oniscidae), Cylisticus poggii sp. n. (Cylisticidae), Porcellio incavatus sp. n. (Porcellionidae), and Alloschizidium segestanum sp. n. (Armadillidiidae). Buddelundiella zoiai, Cylisticus poggii and Alloschizidium segestanum were collected in edaphic environments, while Sardoniscus marmoratus and Porcellio incavatus were found in leaf litter or under not deeply embedded rocks. The diagnostic characteristics, the affinities and the distribution of the new species are discussed.

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47

Delhoumi, M., V. Catania, W. Zaabar, M. Tolone, P. Quatrini, and M. S. Achouri. "The gut microbiota structure of the terrestrial isopod Porcellionides pruinosus (Isopoda: Oniscidea)." European Zoological Journal 87, no. 1 (January 1, 2020): 357–68. http://dx.doi.org/10.1080/24750263.2020.1781269.

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48

Achouri, Mohamed Sghaier, Faouzia Charfi-Cheikhrouha, and Martin Zimmer. "Reproductive patterns in syntopic terrestrial isopod species (Crustacea, Isopoda, Oniscidea) from Morocco." Pedobiologia 52, no. 2 (October 2008): 127–37. http://dx.doi.org/10.1016/j.pedobi.2008.05.002.

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49

Vilisics, Ferenc, Péter Sólymos, and Elisabeth Hornung. "Measuring fluctuating asymmetry of the terrestrial isopod Trachelipus rathkii (Crustacea: Isopoda, Oniscidea)." European Journal of Soil Biology 41, no. 3-4 (July 2005): 85–90. http://dx.doi.org/10.1016/j.ejsobi.2005.09.003.

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50

Montesanto, Giuseppe. "Presence of a stridulatory apparatus in the manca stages of isopods (Crustacea, Isopoda, Oniscidea)." ZooKeys 801 (December 3, 2018): 501–18. http://dx.doi.org/10.3897/zookeys.801.23018.

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Armadilloofficinalis Duméril, 1816 (Armadillidae) is a widespread terrestrial isopod species in the Mediterranean basin and on the western coasts of the Black Sea. The species is adapted to live in xeric environments and has mainly nocturnal habits. This species is capable of producing stridulations, which is nowadays recognized as a synapomorphy of the genus. In both sexes, these vibrations are produced by a line of scales on the propodus of pereopod 4 and 5. The main goals of this study are: to describe the manca stages of Armadilloofficinalis; to detect the presence of the stridulatory apparatus in the manca stages; to evaluate the differences of such apparatus in the various manca stages. The manca stages (I, II, III) of Armadilloofficinalis are described for the first time showing: i, the shortest duration (known in literature) of the manca stage I (approximately 30 minutes); ii, the presence of a rudimental stridulatory organ that may be of great importance in terms of evolutionary aspects and adaptation to terrestrial life. Notes on the reproductive biology are also reported. Furthermore, some considerations on future perspectives for A.officinalis as a model species in biotremology are also discussed.

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