First record of a possible predatory collembolan species, Dicyrtoma fusca (Collembola: Dicyrtomidae), in New Zealand (original) (raw)
Related papers
New Zealand Journal of Zoology, 2007
The New Zealand collembolan fauna currently includes five described species of the striking endemic genus Holacanthella (springtails). Holacanthella species are saproxylic decomposers of cool temperate forest ecosystems, and they contribute to nutrient cycling of coarse woody debris. All species of the genus have the dorsal and lateral surfaces furnished with conspicuous red, orange, yellow or white digitations. They are among the largest Collembola known, with some individuals reaching 17 mm in length. We examined new material of the five species from throughout New Zealand, as well as existing museum material, to understand more fully their distributions. We provide an updated key to the five Holacanthella species and discuss the conservation of rare/range restricted species, and propose hypotheses to explain their distributions. One species, H. laterospinosa, is known only from Cuvier Island and the Coromandel Peninsula, North Island, but the distributions of the remaining four species appears to reflect the turbulent geological history of New Zealand during the Pliocene. Intraspecific variation in several gross morphological characters was observed in all species. We provide a comparison of characters with the other genera within the Uchidanurinae in order to characterise the genus more fully with respect to allied genera. Holacanthella species are particularly vulnerable to human-mediated disturbance by forest modification because of their strict habitat requirements and low mobility, and we stress that conservation efforts should focus on protecting critical habitats for each species.
An exotic collembolan genus and species (Isotomidae: Anurophorinae) new for New Zealand
New Zealand Entomologist, 2019
This paper records an exotic collembolan the species, Anurophorus laricis Nicolet, 1842, found for the first time in New Zealand. Its specific identity is confirmed using morphological data. The record is significant because it is the first for the genus Anurophorus in the Southern Hemisphere. Moreover, the species was found fairly abundantly on the native shrub, manuka, at 300 m asl, an unusual habitat for an exotic species. The high number of exotic, mainly European but also North American, species identified on morphological grounds found in Australia and New Zealand, has not in the past been accepted as valid by taxonomists in Europe. Confirmation using molecular sequence data has only recently been possible and was attempted but was not successful. A related issue is that there has been a trend of Salmon's New Zealand endemic isotomids, both genera and species, being recognised as exotic after revision. We propose likely attributes of species and habitats that facilitate colonisation of exotic species in New Zealand which should help conservation efforts to be well focused.
Composition of Barrow Island Collembolan fauna: analysis of genera
Records of the Western Australian Museum, Supplement, 2013
Collembola have been collected from Barrow Island for the first time; a maximum of seventy one species were detected, of which a high proportion are undescribed. Only four nonindigenous species (NIS) species have been collected, three in very small numbers but one was a large population introduced to the island in lengths of timber which were subsequently sent off the island. Despite few of the species being described, most have been collected before and endemism is low. One new genus record for Australia, Calx, was found. The presence of a species of Temeritas is unusual in that the males showed strong sexual dimorphism, and a species of Acanthocyrtus that lacked any pigment was collected in reasonable numbers. Collections from bore holes were rich in species. Five species were recorded only from bore holes and may be island endemics. The intertidal fauna was also rich in species with 14 found, all restricted to this habitat. Soil fauna density of Collembola was found to be high, with a mean average potential density of nearly 47,000/m 2. A proportion of the terrestrial Collembola fauna is active under all weather conditions but other species are only active after rain. In general, the terrestrial fauna shows a dominance of the families Isotomidae and Bourletiellidae, which is typical for the wet/dry tropics where trees are absent.
Insects
The Collembolan genus Lepidocyrtus is subdivided into up to eight subgenera, of which only Lepidocyrtus s.str. (Bourlet, 1839) and Lanocyrtus (Yoshii & Suhardjono, 1989) are represented by European species. The discovery of unique characters in the European species Lepidocyrtus tomosvaryi (rounded dental tubercle) and L. peisonis (lateral tuft of long filiform chaetae in abdomen III) has only described so far for species of the subgenera Setogaster (Salmon, 1951) and Cinctocyrtus (Yoshii & Suhardjono, 1989) and has raised the need to perform a molecular analysis by involving other representative species of the genus. For this study, phylogenetic analysis of 15 Lepidocyrtus species occurring in the Carpathian Basin were carried out. The analyses, which was based on both concatenated datasets of COII and EF1-α sequences and individual gene sequences, clearly placed L. tomosvaryi within the subgenus Lanocyrtus and L. peisonis within Lepidocyrtus s.srt. European species groups defined o...
BioControl, 2019
The establishment of Mastrus ridens Horstmann (Hym: Ichneumonidae) in New Zealand, from introductions in 2012-2015, was assessed in 2016. Two assessment techniques were used: (1) 10-cm wide corrugated cardboard trunk bands deployed throughout the summer and winter periods to catch wild codling moth larvae and their parasitoids; and (2) sentinel, laboratory reared, codling moth larvae, cocooned within narrow, 2-cm wide corrugated cardboard bands, deployed on a monthly rotation throughout the spring and summer. Trunk band recoveries showed at least a low rate of establishment of Mastrus ridens across the country. Mastrus ridens females attacked sentinel hosts from early spring (prior to pupation of wild hosts) until late autumn. This evidence for multi-voltinism (compared with one or two generations of their host) signals a potentially effective parasitoid. Four other codling moth parasitoids were also recovered frequently from either wild or sentinel codling moth larvae, with differences between regions. The extent to which they may disrupt or enhance biocontrol by M. ridens remains to be investigated.
Collembola fauna of the South Shetland Islands revisited
Antarctic Science, 2010
A review of the collembolan fauna of the South Shetland Islands is presented. Cryptopygus nanjiensis Yue & Tamura is synonymized with C. antarcticus Willem. A record of Tullbergia mediantarctica Wise from King George Island is considered a misidentification of Tullbergia mixta Wahlgren and Tillieria penai Weiner & Najt, described from the same island, is synonymized with T. mixta. The current fauna stands at eleven species, of which at least three are introduced. A checklist of Collembola currently considered to occur in the South Shetland Islands is supplied with distributional data.
Zootaxa, 2010
Deutonura gibbosa, a new species of the phlegraea group, is described. It is characterized by a large elongate uneven tubercle Di on Abd. V, with chaetae Di1 and Di2 shift backward. It has otherwise the same chaetotaxic pattern as the subspecies sylvatica of D. deficiens. Deutonura gibbosa sp. nov. is the most widespread Deutonura in the Alps and southern Jura. Its barcode sequence is provided and compared to those of four other Deutonura of the phlegraea group; it unambiguously differs from them, including from D. deficiens sylvatica, its closest relative according to current taxonomy. This is the most convincing example so far that barcode may help to discriminate taxa among closely related species in Collembola.
A new species of Dicranocentroides (Collembola: Paronellidae) from India
Journal of Threatened Taxa, 2015
and this synonymy is confirmed here. A total of five species in this genus are known from India. There are 19 species of Dicranocentroides known from the world. The distribution of the genus outside India is Malaysia, Java, Sumatra and Thailand. Species' habitats are fallen leaves and grasses, surface soil of dried swamps in evergreen forests. Material and Methods Specimens were collected by an aspirator and preserved in 70% alcohol. They were cleared in Marc Andre 1 medium. Dark specimens were placed in potassium hydroxide (KOH) to soften the chitin. Softening the chitin is required for 10-15 minutes depending upon the intensity of the pigment. Hoyer's mounting medium was used for slide-mounting of the specimens. Identification of specimens was with a phase contrast compound microscope following Christiansen &
Diversity
The delineation of species is important to the fields of evolution, ecology and conservation. The use of only a single line of evidence, e.g., morphology or a single gene sequence, may underestimate or overestimate the level of diversity within a taxon. This problem often occurs when organisms are morphologically similar but genetically different, i.e., for cryptic species. The Hadramphus genus contains four endangered, morphologically similar species of weevils, each endemic to a specific New Zealand region (Hadramphus spinipennis Chatham Islands, H. stilbocarpae Fiordland, H. tuberculatus McKenzie Country, H. pittospori Poor Knights Islands). The systematic relationships among these species are unclear. We used samples from these species and a closely related genus, Lyperobius huttoni, to obtain data from the mitochondrial gene cytochrome c oxidase subunit I and the nuclear gene internal transcribe spacer 2. In addition to the multi-locus coalescent approach, we modelled morpholog...