Some Studies on Soil Nematodes Zoology 2004
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
[VOL. 34, No. 2 Lobed Margins, and in the Structure of Vesicula KEY to the SPECIES of Macrolecithus Seminalis
158 PROCEEDINGS OF THE [VOL. 34, No. 2 lobed margins, and in the structure of vesicula KEY TO THE SPECIES OF Macrolecithus seminalis. The new form closely resembles HASEGAWA ET OZAKI, 1926 M. gotoi in the position of genital pore but 1. Genital pore intercecal 2 differs from it in having a long tubular esoph- Genital pore extracecal M. elongatus agus. Park (1939) distinguished M. phoxinusi 2. Esophagus long and testes separated by from M. elongatus from the same host, Phox- uterine coils M. indiciis n. sp. inus logowskii, by the character of eggs. In Esophagus short and testes not sep- M. elongatus the uterus is pretesticular and arated by uterine coils M. gotoi the eggs are 78 to 81 by 36 to 43 p with thick LITERATURE CITED shells; in M. phoxinusi the uterus reaches the posterior edge of the posterior testis and the HASEGAWA, K., AND OZAKI, Y. 1926. A new eggs are 70 to 84 by 45 to 48 ^ with thin trematode from Misgnrnus anguillicaudatus. Zool. Mag. 38: 225-228. shells. In the opinion of authors the extension PARK, J. T. 1939. Trematodes of fishes from of uterus is a variable character as the posterior Tyosen. III. Some new trematodes of the extent of the uterus in M. indiciis showed equal family Allocreadiidae Stossich, 1904 and the variation and the relative size of eggs is a genus Macrolecithus Hasegawa and Ozaki, minor character and has no importance. Ac- 1926. Keizyo. Jour. Med. 10: 52-62. YAMAGUTI, S. 1958. Systema Helminthum. In- cordingly M. phoxinusi is considered a syn- terscience Publishers, New York, London. -
MS 212 Society of Nematologists Records, 1907
IOWA STATE UNIVERSITY Special Collections Department 403 Parks Library Ames, IA 50011-2140 515 294-6672 http://www.add.lib.iastate.edu/spcl/spcl.html MS 212 Society of Nematologists Records, 1907-[ongoing] This collection is stored offsite. Please contact the Special Collections Department at least two working days in advance. MS 212 2 Descriptive summary creator: Society of Nematologists title: Records dates: 1907-[ongoing] extent: 36.59 linear feet (68 document boxes, 11 half-document box, 3 oversized boxes, 1 card file box, 1 photograph box) collection number: MS 212 repository: Special Collections Department, Iowa State University. Administrative information access: Open for research. This collection is stored offsite. Please contact the Special Collections Department at least two working days in advance. publication rights: Consult Head, Special Collections Department preferred Society of Nematologists Records, MS 212, Special Collections citation: Department, Iowa State University Library. SPECIAL COLLECTIONS DEPARTMENT IOWA STATE UNIVERSITY MS 212 3 Historical note The Society for Nematologists was founded in 1961. Its membership consists of those persons interested in basic or applied nematology, which is a branch of zoology dealing with nematode worms. The work of pioneer nematologists, demonstrating the economic importance of nematodes and the collective critical mass of interested nematologists laid the groundwork to form the Society of Nematologists (SON). SON was formed as an offshoot of the American Phytopathological Society (APS - see MS 175). Nematologists who favored the formation of a separate organization from APS held the view that the interests of SON were not confined to phytonematological problems and in 1958, D.P. Taylor of the University of Minnesota, F.E. -
Zborník Príspevkov Z Vedeckého Kongresu „Zoológia 2016“
Slovenská zoologická spoločnosť pri SAV a Univerzita Konštantína Filozofa v Nitre Zborník príspevkov z vedeckého kongresu „Zoológia 2016“ Zuzana Krumpálová, Martina Zigová & Filip Tulis (eds) Nitra 2016 Editori Zuzana Krumpálová, Martina Zigová & Filip Tulis Garanti podujatia doc. Mgr. et Mgr. Josef Bryja, Ph.D. doc. PaedDr. Stanislav David, PhD. RNDr. Anton Krištín, DrSc. Vedecký výbor (recenzenti) Organizačný výbor RNDr. Michal Ambros, PhD. doc. Mgr. Ivan Baláž, PhD. (predseda) doc. Mgr. Ivan Baláž, PhD. RNDr. Michal Ambros, PhD. doc. Mgr. Peter Fenďa, PhD. RNDr. Peter Bačkor, PhD. doc. Vladimír Kubovčík, PhD. Mgr. Henrich Grežo, PhD. doc. RNDr. Zuzana Krumpálová, PhD. doc. Ing. Vladimír Kubovčík, PhD. Ing. Peter Lešo, PhD. Mgr. Peter Manko, PhD. Mgr. Peter Manko, PhD. Mgr. Ladislav Pekárik, PhD. RNDr. Roman Slobodník, PhD. RNDr. Peter Petluš, PhD. doc. RNDr. Michal Stanko, DrSc. Ing. Viera Petlušová, PhD. doc. Ing. Peter Urban, PhD. RNDr. Roman Slobodník, PhD. Mgr. Michal Ševčík Mgr. Filip Tulis, PhD. Mgr. Martina Zigová Mgr. Martin Zemko Publikované príspevky boli recenzované. Za odbornú úroveň príspevkov zodpovedajú autori a recenzenti. Rukopis neprešiel jazykovou úpravou. Vydavateľ: Univerzita Konštantína Filozofa v Nitre Edícia: Prírodovedec č. 645 Formát: B5 Rok vydania: 2016 Miesto vydania: Nitra Počet strán: 250 Tlač: Vydavateľstvo SPU v Nitre Náklad: 150 kusov © Univerzita Konštantína Filozofa v Nitre ISBN 978-80-558-1102-4 Všetky práva vyhradené. Žiadna časť textu ani ilustrácie nemôžu byť použité na ďalšie šírenie akoukoľvek formou bez predchádzajúceho súhlasu autora alebo vydavateľa. Vedecké príspevky sú zoradené podľa priezviska autora príspevku v abecednom poradí. „Zoológia 2016“ 24. – 26. november 2016, Univerzita Konštantína Filozofa v Nitre Program kongresu „Zoológia 2016“ 24. -
World Database of Free-Living Marine Nematodes Editor Workshop Report
World Database of Free-Living Marine Nematodes Editor Workshop Ghent University – Marine Biology Research Group – Ghent, Belgium 05 - 07 September 2018 Email to contact all Nemys editors: [email protected] Report Attendants Editors: Tania Nara Bezerra, Ann Vanreusel, Mike Hodda, Zeng Zhao, Ursula Eisendle-Flöckner, Oleksandr Holovachov, Virág Venekey, Nic Smol, Wilfrida Decraemer, Dmitry Miljutin, Vadim Mokievsky Excused: Daniel Leduc, Jyotsna Sharma, Reyes Peña Santiago, Alexei Tchesunov WoRMS Data Management Team (DMT): Bart Vanhoorne, Wim Decock, Thomas Lanssens, Ricardo Simões Excused: Leen Vandepitte The first Nemys Editors Workshop in February 2015 result in a considerable improvement of the database and in 2016 during the Meiofauna Conference in Crete, where some of the editors were present, some issues were also discussed. These possibilities of having the editors working alongside provide an efficient work in a shorter time. We definitely need to have these workshops periodically. The objectives of this workshop were: (i) to evaluate the work that has been done over the past three years and the maintenance of the database, (ii) to welcome the editors of terrestrial and fresh water nematodes, set clear goals, assign tasks and initiate the practical work related to new initiatives and (iii) to outline practices for outreach and scientific output for Nemys (e.g. scientific papers, presentations of the progress, plans and results at an upcoming conference). On the first day it was asked to have a rapporteur for each session in order to have it registered. The original minutes are on a separate document and were used to generate this report. This report includes: I. -
Nematodes in Aquatic Environments Adaptations and Survival Strategies
Biodiversity Journal , 2012, 3 (1): 13-40 Nematodes in aquatic environments: adaptations and survival strategies Qudsia Tahseen Nematode Research Laboratory, Department of Zoology, Aligarh Muslim University, Aligarh-202002, India; e-mail: [email protected]. ABSTRACT Nematodes are found in all substrata and sediment types with fairly large number of species that are of considerable ecological importance. Despite their simple body organization, they are the most complex forms with many metabolic and developmental processes comparable to higher taxa. Phylum Nematoda represents a diverse array of taxa present in subterranean environment. It is due to the formative constraints to which these individuals are exposed in the interstitial system of medium and coarse sediments that they show pertinent characteristic features to survive successfully in aquatic environments. They represent great degree of mor - phological adaptations including those associated with cuticle, sensilla, pseudocoelomic in - clusions, stoma, pharynx and tail. Their life cycles as well as development seem to be entrained to the environment type. Besides exhibiting feeding adaptations according to the substrata and sediment type and the kind of food available, the aquatic nematodes tend to wi - thstand various stresses by undergoing cryobiosis, osmobiosis, anoxybiosis as well as thio - biosis involving sulphide detoxification mechanism. KEY WORDS Adaptations; fresh water nematodes; marine nematodes; morphology; ecology; development. Received 24.01.2012; accepted 23.02.2012; -
Rothamsted Repository Download
Patron: Her Majesty The Queen Rothamsted Research Harpenden, Herts, AL5 2JQ Telephone: +44 (0)1582 763133 WeB: http://www.rothamsted.ac.uk/ Rothamsted Repository Download A - Papers appearing in refereed journals Clark, W. C. 1961. A revised classification of the order Enoplida (Nematoda). New Zealnd Journal of Science. pp. 123-. The output can be accessed at: https://repository.rothamsted.ac.uk/item/96yy1/a- revised-classification-of-the-order-enoplida-nematoda. © Please contact [email protected] for copyright queries. 13/11/2019 12:02 repository.rothamsted.ac.uk [email protected] Rothamsted Research is a Company Limited by Guarantee Registered Office: as above. Registered in England No. 2393175. Registered Charity No. 802038. VAT No. 197 4201 51. Founded in 1843 by John Bennet Lawes. SYSTEMATIC AND MORPHOLOGICAL STUDIES ON SOME ENOPLIDA (NEMATODA) WITH SPECIAL REFERENCE TO THE SOIL FAUNA OF NEW ZEALAND by W. C. CLARK, M.Sc. Hons. (N.Z.), D.I.C. A THESIS PRESENTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in the Faculty of Science of the University of London Aoril 1961 Deoartment of Nematology, Rothamsted Exoerimental Station, Harpenden, Herts. ABSTRACT This study falls in two parts, systematics and mor- phology. Systematics. The classification of the order Enoplida (Nematoda) is revised. At the subordinal level the classifi- cation is nrimarily based on the nature, number and Position of the oesophageal glands and their ducts. Five suborders are recognised; Enojlina, Alaimina, Dorylaimina, Tricho- syringina and Diectonhymatina. The new features of the classification are:- Alaimina established for the Alaimoidea and the Diphtheronhoroidea on the oesophageal and male sexual characters. -
FINAL VERSION JUNE 14 2010X
Nematodes from the Bakwena Cave in Irene, South Africa Candice Jansen van Rensburg Academic year: 2009-2010 Thesis submitted in partial fulfillment of the requirements for the award of the degree Master of Science in Nematology in the Faculty of Sciences, Ghent University Promoter: Prof. Wilfrida Decraemer Co-Promoters: Dr. Wim Bert Dr. Antoinette Swart Nematodes from the Bakwena Cave in Irene, South Africa Candice JANSEN VAN RENSBURG 1*,2 1Nematology section, Department of Biology, Faculty of Sciences, Ghent University; K.L. Ledeganckstraat 35, 9000 Ghent, Belgium 2Dept. Zoology & Entomology, P.O. 339, University of the Free State, Bloemfontein, 9300, South Africa; [email protected] *Corresponding e-mail address: [email protected] 1 Summary A survey forming part of the Bakwena cave project was carried out from January 2009 to February 2010 at the Bakwena Cave South Africa. A total of 27 nematode genera belonging to 23 families were collected, 19 genera are reported for the first time from cave environments. Of the six localities sampled, the underground pool of the cave showed the highest species diversity with lowest diversity associated with fresh and dry guano deposits. Four of the sampling localities were dominated by bacterial feeders the remaining two localities being comprised of fungal feeders, obligate and facultative plant feeders and omnivores. Multidimensional scaling indicated six nematode assemblages corresponding with six localities, which might reflect substrate associated patterns. Three species are also described, two being new to science. Diploscapter coronatus is characterised by having a visibly annulated cuticle; a pharyngeal corpus clearly distinguishable from the isthmus, the vulva situated about mid-body and the stoma almost twice as long as the lip region width. -
Succession of Nematodes During Composting Processess and Their Potential As Indicators of Compost Maturity
Succession of nematodes during composting processess and their potential as indicators of compost maturity Hanne Steel Promoters: Prof. dr. Wim Bert (UGent) Prof. dr. Tom Moens (UGent) Thesis submitted to obtain the degree of doctor in Sciences, Biology Proefschrift voorgelegd tot het bekomen van de graad van doctor in de Wetenschappen, Biologie Dit werk werd mogelijk gemaakt door een beurs van het Fonds Wetenschappelijk Onderzoek- Vlaanderen (FWO) This work was supported by a grant of the Foundation for Scientific Research, Flanders (FWO) 3 Reading Committee: Prof. dr. Deborah Neher (University of Vermont, USA) Dr. Thomaé Kakouli-Duarte (Institute of Technology Carlow, Ireland) Prof. dr. Magda Vincx (Ghent University, Belgium) Dr. Eduardo de la Peña (Ghent University, Belgium) Examination Committee: Prof. dr. Koen Sabbe (chairman, Ghent University, Belgium) Prof. dr. Wim Bert (secretary, promotor, Ghent University, Belgium) Prof. dr. Tom Moens (promotor, Ghent University, Belgium) Prof. dr. Deborah Neher (University of Vermont, USA) Dr. Thomaé Kakouli-Duarte (Institute of Technology Carlow, Ireland) Prof. dr. Magda Vincx (Ghent University, Belgium) Prof. dr. Wilfrida Decraemer (Royal Belgian Institute of Natural Sciences, Belgium) Dr. Eduardo de la Peña (Ghent University, Belgium) Dr. Ir. Bart Vandecasteele (Institute for Agricultural and Fisheries Research, Belgium) 5 Acknowledgments Eindelijk is het zover! Ik mag mijn dankwoord schrijven, iets waar ik stiekem al heel lang naar uitkijk en dat alleen maar kan betekenen dat mijn doctoraat bijna klaar is. JOEPIE! De voorbije 5 jaar waren zonder twijfel leuk, leerrijk en ontzettend boeiend. Maar… jawel doctoreren is ook een project van lange adem, met vallen en opstaan, met zin en tegenzin, met geluk en tegenslag, met fantastische hoogtes maar soms ook laagtes….Nu ik er zo over nadenk en om in een vertrouwd thema te blijven: doctoreren verschilt eigenlijk niet zo gek veel van een composteringsproces, dat bij voorkeur trouwens ook veel adem (zuurstof) ter beschikking heeft. -
Opuscula Zoologica SIMAIAKIS, S., MINELLI, A
Opusc. Zool. Budapest, 2010, 41(1): 3–18 Unraveling some Kinki worms (Annelida: Oligochaeta: Megadrili: Moniligastridae) - Part I 1 2 R. J. BLAKEMORE and E. K. KUPRIYANOVA Abstract. A new species, Drawida eda Blakemore, is proposed for an earthworm from rice paddy near Lake Biwa in central Japan. It is compared with both Drawida barwelli (Beddard, 1886) – the cosmopolitan type of the genus – and with sympatric D. japonica (Michaelsen, 1892) for which a new synonym, D. propatula Gates, 1935, is added. Parasitic origin theory of diagnostic ‘genital markings’ in D. japonica is extended to other taxa and their conspecificity is mooted. Definitive resolution of the taxonomic complexities within Drawida via DNA analysis is pending, although the COI barcode for the type of D. eda is initially provided, the first time for a new earthworm species. Polygiceriate similarity of Oriental ‘exquisiticlitellate’ Drawida to megascolecid genera like Nexogaster Blakemore, 1997 (type Nexogaster sexies Blakemore, 1997) is briefly noted. Using this opportunity, replacement names are given for two preoccupied Tasmanian Lake Pedder taxa as a normal part of taxonomic ‘housekeeping’, viz. Anisogogaster for Anisogaster Blakemore, 2000 (non Deyrolle, 1862, nec Looss, 1901) and Perionchella variegogata for Perionchella variegata Blakemore, 2000 (non Michaelsen, 1907). INTRODUCTION viz. Drawida hattamimizu Hatai, 1930, which was dealt with by Blakemore et al. (2010), and D. axonomy of the large Indo-Oriental family japonica (Michaelsen, 1892) – the extent of which T Moniligastridae is beset by many small and is reconsidered based upon historical types and apparently similar-looking taxa. Moreover, seve- recently re-surveyed material. ral key features are often ambiguous. -
Patterns of Relationships Between Nematode Communities and Vegetation from Some Salt-Affected Areas in Transylvania (Romania)
Nematol. medit. (2004),32: 137-146 137 PATTERNS OF RELATIONSHIPS BETWEEN NEMATODE COMMUNITIES AND VEGETATION FROM SOME SALT-AFFECTED AREAS IN TRANSYLVANIA (ROMANIA) M. Ciobanu!", H.E van Dobben2 and I. PopovicF 1Institute 0/ Biological Research, Department o/Taxonomy and Ecology, 48 Republicii Street, 3400 Cluj-Napoca, Romania 2 ALTERRA, Postbus 47, 6700 AA Wageningen, the Netherlands Summary. Plant and nematode communities from two inland salt-affected habitats located in the Transylvania province (Roma nia) were analyzed by detrended correspondence analysis (DCA). Vegetation samples were clearly separated into three clusters, each cluster including one distinct plant association, while nematode communities were less distinctly separated into groups. Dif ferences in halotolerance were noted for both plant and nematode species. Extreme salt-affected habitats characterized by oblig ate halophilic phytocoenoses were dominated by opportunistic nematodes and were differentiated from other habitats by the low est MI values. The most halotolerant species, Laimydorus parabastianz; could be used as key bioindicator for salt-affected areas. A characterization of plant and nematode communities is provided. Soil nematodes possess several attributes that make' 1968). Physical and chemical soil properties act directly them useful ecological indicators (Freckman, 1988). on the vegetation and soil fauna, being a strong selec These organisms are represented at most trophic levels tion factor in such areas. As a consequence, the organ of the soil food web and they are thought to be inti isms react by developing different degrees of halotoler mately connected to, and may reflect, fundamental eco ance. logical processes, such as decomposition, mineralization Preliminary ecological data on the nematode fauna and nutrient cycling in soils (De Goede and Bongers, from three salt-affected areas located in Transylvania 1994). -
Taxonomy Assignment Approach Determines the Efficiency of Identification of Metabarcodes in Marine Nematodes
Taxonomy assignment approach determines the efficiency of identification of metabarcodes in marine nematodes Oleksandr Holovachov1, Quiterie Haenel2, Sarah J. Bourlat3 and Ulf Jondelius1 1Department of Zoology, Swedish Museum of Natural History, Stockholm, Sweden 2Zoological Institute, University of Basel, Switzerland 3Department of Marine Sciences, University of Gothenburg, Sweden Abstract: Precision and reliability of barcode-based biodiversity assessment can be affected at several steps during acquisition and analysis of the data. Identification of barcodes is one of the crucial steps in the process and can be accomplished using several different approaches, namely, alignment-based, probabilistic, tree-based and phylogeny-based. Number of identified sequences in the reference databases affects the precision of identification. This paper compares the identification of marine nematode barcodes using alignment-based, tree-based and phylogeny-based approaches. Because the nematode reference dataset is limited in its taxonomic scope, barcodes can only be assigned to higher taxonomic categories, families. Phylogeny-based approach using Evolutionary Placement Algorithm provided the largest number of positively assigned metabarcodes and was least affected by erroneous sequences and limitations of reference data, comparing to alignment- based and tree-based approaches. Key words: biodiversity, identification, barcode, nematodes, meiobenthos. 1 1. Introduction Metabarcoding studies based on high throughput sequencing of amplicons from marine samples have reshaped our understanding of the biodiversity of marine microscopic eukaryotes, revealing a much higher diversity than previously known [1]. Early metabarcoding of the slightly larger sediment-dwelling meiofauna have mainly focused on scoring relative diversity of taxonomic groups [1-3]. The next step in metabarcoding: identification of species, is limited by the available reference database, which is sparse for most marine taxa, and by the matching algorithms. -
Comparative Analysis of Freshwater Nematode Communities from Three Sites in the Dniester River
Muzeul Olteniei Craiova. Oltenia. Studii şi comunicări. Ştiinţele Naturii. Tom. 26, No. 1/2010 ISSN 1454-6914 COMPARATIVE ANALYSIS OF FRESHWATER NEMATODE COMMUNITIES FROM THREE SITES IN THE DNIESTER RIVER ANTOFICA Andrei Abstract. Species diversity, trophic and ecological groups, biomass of freshwater nematode communities from three sites of the Dniester River were studied. Forty-three species from nine orders of phylum Nematoda were revealed. The most diverse and numerous nematode communities were in the littoral area of the Dubossari Reservoir (29 species) than below Soroca city (16) and near Tudora village (9). Among the trophic groups the algivores (Tobrilidae) and bacteriovores (Monhysteridae, Plectidae, Panagrolaimidae and Rhabditidae) were dominant. The common species Dorylaimus stagnalis prefers the standing polluted water. Among the ecological groups the hydrobionts and amphibionts were dominant. The greatest biomass of freshwater nematode community was revealed near Tudora village though the species diversity was poor. This biomass was formed by the large nematode species such as Mononchus aquaticus and Dorylaimus stagnalis. Therefore, the species level study is necessary to permit further advances in understanding the role of nematodes in freshwater ecosystems. Keywords: freshwater nematodes, species diversity, trophic and ecological groups, biomass, the Dniester River. Rezumat. Analiza comparativă a comunităţilor de nematode din trei sectoare ale Fluviului Nistru. A fost studiată diversitatea speciilor, grupările trofice şi ecologice, biomasa comunităţilor de nematode acvatice din trei sectoare ale Fluviului Nistru. Au fost determinate patruzeci şi trei specii ce fac parte din nouă ordine a phylum Nematoda. Cel mai divers după numărul de specii si cu efectivul numeric ridicat a fost sectorul bazinul de acumulare Dubăsari (29 specii) urmat de sectorul oraşului Soroca (16) şi sectorul Tudora (9).