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The Odonata fauna of the basin of the river Severskyi Donets in its middle current (Eastern Ukraine)
(2010)
A list of 57 Odonata species from 108 localities recorded in the basin of the river Severskyi Donets in its middle range (Eastern Ukraine) is provided. This compilation includes literature and museum data as well as results from field surveys realized between 2001 and 2009. Annotations to the history of regional odonate research are made. Brief descriptions of typical dragonfly habitats in the floodplain of Severskyi Donets are presented. Locality wise notes on the reproductive status for most of the species are made.
A list of 60 Odonata species and their distribution across 109 localities on the Crimean Peninsula is provided. The study is based on a literature review and a field survey between 1999 and 2008. Erythromma lindenii and Epitheca bimaculata are here recorded for the first time from Crimea. Diagnostic morphological characters of Calopteryx splendens taurica and Orthetrum coerulecens anceps are briefly described. Discriptions of typical Crimean habitats of dragonflies are also presented. The necessity of the protection of Crimean freshwater habitats is discussed.
1. Locating an optimal oviposition site can be a challenging task for female insects, especially when dealing with a patchy, unpredictable and ephemeral food source such as carrion. Understanding the biotic and abiotic parameters that influence the oviposition behaviour of necrophagous flies is not just of great biological importance but also essential for their application in legal investigations.
2. In this study, we monitored the oviposition activity of necrophagous flies (Calliphoridae, Sarcophagidae) using mouse carcasses in an urban (city) and a rural (mixed forest) habitat in Frankfurt/Germany over a 2-year period.
3. Over 240 sampling days, 220,963 larvae of 4 blow fly species and 1 flesh fly were sampled. The most abundant species was the blow fly Lucilia ampullacea, followed by its family members Calliphora vicina and Lucilia caesar, the flesh fly Sarcophaga caerulescens and Lucilia sericata. Up to seven environmental parameters were statistically significant predictors for a colonisation of the carcasses, leading to unique patterns of seasonal and daily oviposition activity for all five species.
4. Overall, the analysis showed that the seasonal adaption (the phenology of each species), the habitat (rural vs. urban) as well as temperature are the most important factors influencing the oviposition behaviour and activity of necrophagous blow flies and flesh flies.
Results of the odonatological survey of the coastal SW regions of Cambodia in August 12-28, 2011 are presented. Those include general notes on the Odonata fauna in late rainy season, enumeration of all records by locality, discussion of interesting specimens and their taxonomy, and notes on habitats and habits of some species. Of 87 named Odonata species encountered during the trip, 15 are reported for the first time for Cambodia, namely Aciagrion hisopa (Selys, 1876), Anax immaculifrons Rambur, 1842, Burmagomphus divaricatus Lieftinck, 1964, Gomphidictinus perakensis (Laidlaw, 1902), Merogomphus parvus (Kruger, 1899), Nepogomphus walli (Fraser, 1924), Idionyx thailandica Hamalainen, 1985, Macromia cupricincta Fraser, 1024, Macromia septima Martin, 1904, Macromidia rapida Martin, 1907, Agrionoptera insignis (Rambur, 1842), Lyriothemis elegantissima Selys, 1883, Onychothemis testacea Laidlaw, 1902, Orthetrum luzonicum (Brauer, 1868), Orthetrum testaceum (Burmeister, 1839). The country list now reaches 125 named species.
Eleven species of Elateridae (Coleoptera) were collected during a two-year arthropod inventory survey at the Cuatrociénegas Natural Protected Area, Coahuila, Mexico. Aeolus cuatro new species, Horistonotus coahuila new species, and Megapenthes cienegas new species are described for the first time. Additionally reported as new state records are Conoderus athoides (LeConte), C. lividus (De Geer), Deilelater mexicanus (Champion), Esthesopus parcus Horn, and Dipropus rufulus (Candèze). Sixteen species of click beetle are now recorded from Coahuila. The sampled habitats and the environmental setting are briefly described with images of each sampling site.
A review has been undertaken of herbarium records, point location and full floristic data to assess the distribution, habitat and conservation status of Macrozamia flexuosa (Zamiaceae), a rare cycad endemic to the Hunter Region of New South Wales. Spatial analysis of all records (n=588) showed that the species is most prevalent on Permian-aged sediments but also occurs on older Carboniferous sediments and younger Triassic Narrabeen and Quaternary substrates. Point records intersect with a wide range of annual average rainfall bands (<700 to 1400 mm/yr), suggesting either that the species is tolerant of a variety of soil moisture gradients, or that current distribution may be representative of a differing climatic environment. Interpolation of database records (n=397) across 175,000 hectares of high-resolution vegetation mapping showed Macrozamia flexuosa to most frequently occur within the Lower Hunter Spotted Gum-Ironbark Forest (41%), followed by Kurri Sands Swamp Woodland (16%), Coastal Foothills Spotted Gum-Ironbark Forest (15%) and Coastal Plains Smooth-barked Apple Woodland (13%). Numerical analysis of full floristic plot data (n=86) largely supported these results, with the addition of Hunter Valley Moist Forest to these four regional communities. A revised assessment of the conservation significance of Macrozamia flexuosa suggests that the existing conservation risk code of 2K be amended to 3RCa (distributional range >100km; rare but not immediately threatened; adequately conserved in at least 14 conservation reserves). An extent of occurrence of 6,319 km2 and an area of occupancy of 696 km2 have been determined for the species, and an estimated population size of between 1,740,000 and 43,500,000 individuals has been calculated. Under IUCN threat criteria, a code of NT (Near Threatened) is here considered appropriate for Macrozamia flexuosa, recognising uncertainties applicable to the assessment of Criteria A and B. It is noted, however, that Macrozamia flexuosa may currently be in slow decline due to as yet unknown limitations in flowering, pollination and/or dispersal mechanisms over a long period of time (many decades), with the longevity of individual specimens confounding any observable trends. A lack of demographic data relevant to these life traits limits comprehensive assessment, and further research to address these data gaps is recommended.
The paper compiles records from four excursions to study the Odonata fauna of southern Guizhou, China. Between 2007 and 2010 in Xiaoqikong Park and Maolan National Nature Reserve, 104 taxa have been recorded. Some interesting species are discussed, compared with sibling taxa, and information on habitats and habits is given.
Sauron rayi (Simon, 1881) is recorded in Austria for the first time. Male and female specimens of this rare European spider were found in two “Austrian pine forests” in Lower Austria. Data on distribution, habitat, phenology and Red List status from the Austrian localities and from published records in other countries are presented.
Die Radnetzspinne Cyclosa oculata (Walckenaer, 1802) wurde an elf Orten in der Nordwestschweiz nachgewiesen. Alle Fundorte lagen in Buntbrachen mit relativ hohem Anteil abgestorbener Vegetation vom Vorjahr, relativ niedriger Vegetationshöhe und geringem Anteil von Gräsern an der Vegetation. C. oculata baute ihr kleines Radnetz in Bodennähe, tief in der Vegetation. Unter den ecribellaten Radnetzspinnen Mitteleuropas ist C. oculata einzigartig, da sie manchmal ein rudimentäres Netze baut und verwendet, da sie ihre Kokons in das Netz einbaut, und da sie ein dauerhaftes Detritus-Stabiliment baut. Aufgrund unserer Beobachtungen nehmen wir an, dass das Stabiliment C. oculata zur Tarnung dient.
During summer field work in 2005 and 2009 data on the distribution of dragonflies were obtained on the territory of Moldova. In August 2005, 9 species were recorded for the middle part of the Dniester river (surroundings of Sakharna). Between 28 June and 4 July 2009 dragonflies were studied in almost all parts of the country - 25 species were observed. Four species (Lestes macrostigma, Coenagrion ornatum, Coenagrion scitulum, Orthetrum brunneum) were recorded for the first time in Moldova. For many species the knowledge of their Moldovan distribution was improved. The habitats of every species were described, illustrated and preliminary maps of species distribution were prepared. Literature data were also analysed and a check list of Moldovan dragonflies was created containing 37 species. The presence of several species (including Nehalennia speciosa) in Moldova needs confirmation.