Invertebrate Research Center

Tbilisi, Georgia

Invertebrate Research Center

Tbilisi, Georgia
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Mumladze L.,Ilia State University | Mumladze L.,Invertebrate Research Center | Murvanidze M.,Invertebrate Research Center | Murvanidze M.,The University of Georgia | Maraun M.,University of Gottingen
Experimental and Applied Acarology | Year: 2017

Elevational gradients in species diversity and species area relationships are two well established patterns that are not mutually exclusive in space and time. Elevation and area are both considered as good proxies to detect and characterize the patterns of species diversity distribution. However, such studies are hampered by the incomplete biodiversity data available for ecologists, which may affect the pattern perceptions. Using the large dataset of oribatid mite communities sampled in Georgia, we tested the effects of altitude and area on species distribution using various approaches, while explicitly considering the biases from sampling effort. Our results showed that elevation and area are strongly correlated (with increasing absolute elevation, land area decreases) and both have strong linear effects on species diversity distribution when studied separately. Approaches based on multiple regression and direct removal of co-varied factors, indicated that the effect of area can actually override the effect of elevation in describing the oribatid species diversity distribution along with elevation. On the other hand, the bias of sampling proved significant in perception of elevational species richness pattern with less effect on elevational species area relationship. We suggest that the sampling alone may be responsible for patterns observed and thus should be considered in ecological studies when eligible. © 2017 Springer International Publishing AG

Japoshvili G.,Invertebrate Research Center
Journal of Asia-Pacific Entomology | Year: 2017

Thirty-eight species are recorded from the Lagodekhi reserve. Three genera (Ixodiphagus Howard, 1907, Metablasthothrix Sugonjaev, 1964 and Protyndarichoides Noyes, 1980) and twenty-two species are newly recorded for Caucasus and 9 species are recorded for the first time from Georgia, for a total of 31 new records for Georgia. Descriptions and illustrations are provided for the seven new species: Adelencyrtus gvritishvilii sp. n., Anagyrus hayati sp. n., A. tenebris sp. n., Discodes kudigorensis sp. n., Echthroplexiella aliquam sp. n., Metablasthothrix kostjukovi sp. n., and Psyllaephagus batsibutsi sp. n. © 2017

Mikhailov K.G.,Moscow State University | Otto S.,University of Leipzig | Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center
Zoology in the Middle East | Year: 2017

An illustrated description of Clubiona caucasica sp. n., which is closely related to C. caerulescens L. Koch, 1867 is provided. The new species is found in the Caucasus (Russia, Georgia, Azerbaijan, Armenia) and in Turkey (one locality). © 2017 Taylor & Francis

Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center | Kostjukov V.,All Russian Research Institute of Biological Plant Protection
Journal of the Entomological Research Society | Year: 2017

Up to this report, only Minotetrastichus platanellus (Mercet, 1922) had been recorded from Georgia and Transcaucasia. We now report Minotetrastichus frontalis (Nees, 1834), Minotetrastichus loxotoma (Graham, 1961) and Minotetrastichus treron Graham, 1987 as new to Georgia and Transcaucasia, bringing the number of species of Minotetrastichus Kostjukov, 1977 in Georgia up to four. Diagnostic characters for distinguishing this genus from other genera belonging to subfamily Tetrastichinae are provided. © 2017, Gazi Entomological Research Society. All rights reserved.

Hansen L.O.,University of Oslo | Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center
Norwegian Journal of Entomology | Year: 2013

The collection of the family Encyrtidae at the Natural History Museum of Oslo is revised, and this study focuses on the ethanol-preserved material in particular. Sixteen species are reported for the first time from Norway, bringing the total number of Norwegian encyrtids up to 87. Comments on the biology and distribution for these species are given. The aim of this study is to highlight the distribution of the family in Norway and to produce a complete list of the Norwegian Encyrtidae. © Norwegian Journal of Entomology.

Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center | Higashiura Y.,Citrus Promotion Center | Kamitani S.,Kyushu University
Acta Entomologica Musei Nationalis Pragae | Year: 2016

The study of Japanese encyrtids has been started with desctiption of first new species by Howard in 1898. Later many authors devoted their attention to the study of Encyrtidae in Japan. Almost all type specimens of Encyrtidae, described by Tei Ishii and Tetsusaburo Tachikawa, were examined, and all Encyrtidae recorded from Japan, which were available in Japanese collections, are revised. Fifty-two genera and 150 species were recorded to date from Japan. Five new species are described and illustrated: Aphidencyrtoides tachikawai Japoshvili sp. nov., Leptomastix teii Japoshvili sp. nov., Psyllaephagus enokicola Japoshvili sp. nov., P. higashiurai Japoshvili sp. nov. and P. kamitanii Japoshvili sp. nov. One genus, Parablastothrix Mercet, 1917, and five species, Adelencyrtus comis (Noyes & Ren, 1987), Anagyrus bicolor Noyes & Hayat, 1994, Leptomastix auraticorpus Girault, 1915, Parablastothrix maritima Logvinovskaya, 1981, and Syrphophagus aeruginosus (Dalman, 1820), were recorded for the first time from the country. Nine new synonymies are established: Aschitus Mercet, 1921, syn. nov. of Microterys Thomson, 1876; Anicetus eous Trjapitzin, 1965, syn. nov. of A. annulatus Timberlake, 1919; Blastothrix kermivora Ishii, 1828, syn. nov. of B. erythrostetha (Walker, 1847); Cerchysiella togashii Tachikawa, 1988, syn. nov. of Bethylomimus academus Trjapitzin, 1967; Cheiloneurus japonicus Ashmead, 1904, syn. nov. of Ch. claviger Thomson, 1876; Epitetracnemus Girault, 1915, syn. nov. of Adelencyrtus Ashmead, 1900; Ericydnus japonicus Tachikawa, 1963, syn. nov. of E. longicornis (Dalman, 1820); Eugahania mongolica Hoffer, 1970, syn. nov. of E. yanoi Tachikawa, 1956; Leptomastidea rubra Tachikawa, 1956, syn. nov. of L. bifasciata (Mayr, 1876). Thirty two new combinations are proposed: Adelencyrtus bandus (Zhang & Shi, 2010) comb. nov. (from Epitetracnemus), A. comis (Noyes & Ren, 1987) comb. nov. (from Epitetracnemus), A. intersectus (Fonscolombe, 1832) comb. nov. (from Encyrtus), A. japonicus (Ishii, 1923) comb. nov. (from Anabrolepis), A. kosef (Li & Byun, 2002) comb. nov. (from Epitetracnemus), A. lindingaspidis (Tachikawa, 1963) comb. nov. (from Anabrolepis), A. reni (Zhang & Shi, 2010) comb. nov. (from Epitetracnemus), A. sexguttatipennis (Girault, 1915) comb. nov. (from Epitetracnemus), A. shanghaiensis (Si, Li & Li, 2010) comb. nov. (from Epitetracnemus), Anagyrus rufoscutatus (Ishii, 1928) comb. nov. (from Doliphoceras), Microterys algiricus (Ferrière, 1956) comb. nov. (from Paraphaenodiscus), M. annulatus (Erdos, 1957) comb. nov. (from Aschitus), M. balcanicus (Jensen, 1989) comb. nov. (from Aschitus), M. bicolor (Mercet, 1921) comb. nov. (from Paraphaenodiscus), M. carpathicus (Hoffer, 1958) comb. nov. (from Paraphaenodiscus), M. golcukus (Japoshvili, 2012) comb. nov. (from Aschitus), M. imeretinus (Japoshvili, 2007) comb. nov. (from Aschitus), M. jalysus (Walker, 1837) comb. nov. (from Paraphaenodiscus), M. lichtensiae (Howard, 1896) comb. nov. (from Encyrtus), M. madyes (Walker, 1837) comb. nov. (from Paraphaenodiscus), M. margaritae (Myartseva, 1979) comb. nov. (from Aschitus), M. mongolicus (Myartseva, 1982) comb. nov. (from Paraphaenodiscus), M. naiacocci (Trjapitzin, 1968) comb. nov. (from Paraphaenodiscus), M. neoacanthococci (Myartseva, 1979) comb. nov. (from Aschitus), M. novikovi (Trjapitzin, 1994) comb. nov. (from Aschitus), M. populi (Myartseva, 1979) comb. nov. (from Aschitus), M. scapus (Xu, 2004) comb. nov. (from Aschitus), M. scapus (Xu, 2004) comb. nov. (from Aschitus), M. submetallicus (Szelényi, 1972) comb. nov. (from Anicetellus), M. subterraneus (Ferrière, 1956) comb. nov. (from Paraphaenodiscus), M. triozae (André, 1877) comb. nov. (from Encytrus), M. zakeri (Bhuiya, 1998) comb. nov. (from Aschitus). The taxonomic status of the following three species is revalidated from synonymy: Aphycoides lecaniorum (Tachikawa, 1963), Copidosoma uruguayensis Tachikawa, 1968 and Encyrtus hokkaidonis Tachikawa, 1963. Lectotypes are designated for the following 31 species: Adelencyrtus bifasciatus (Ishii, 1923), A. japonicus (Ishii, 1923), Anagyrus flavus Ishii, 1928, Anagyrus rufoscutatus, A. sawadai Ishii, 1928, A. subalbipes Ishii, 1928, Anicetus ceroplastis Ishii, 1928, A. ohgushii Tachikawa, 1958, Aphidencyrtoides thoracaphidis Ishii, 1928, Blastothrix kermivora Ishii, 1928, Cerapteroceroides fortunatus (Ishii, 1925), Cheloneurus ceroplastis Ishii, 1923, Ch. kanagawaensis Ishii, 1928, Ch. tenuicornis Ishii, 1928, Clausenia purpurea Ishii, 1923, Comperiella unifasciata Ishii, 1925, Copidosoma komabae (Ishii, 1923), Encyrtus sasaki Ishii, 1928, Hexencyrtus miyama (Ishii, 1928), Homalotylus albifrons (Ishii, 1925), Microterys caudatus Ishii, 1928, M. ericeri Ishii, 1923, Microterys ishiii Tachikawa, 1963, M. kuwanai Ishii, 1928, M. rufofulvus Ishii, 1928, M. speciosus Ishii, 1923, Ooencyrtus nezarae Ishii, 1928, Pareusemion studiosum Ishii, 1925, Prochiloneurus nagasakiensis Ishii, 1928, Psyllaephagus iwayaensis Ishii, 1928, and Trichomasthus eriococci (Ishii, 1928). © 2016, National Museum/Narodni muzeum. All rights reserved.

Gavkare O.,CSK Himachal Pradesh Agricultural University | Gavkare O.,Dr. Y.S. Parmar University of Horticulture and Forestry | Kumar S.,CSK Himachal Pradesh Agricultural University | Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center
Phytoparasitica | Year: 2014

Myzus persicae (Sulzer) is an economically important agricultural pest with over 500 known host plants in the world. The present study recorded the major parasitoids found parasitizing M. persicae on sweet pepper (Capsicum annuum [L.]) crops in greenhouses in Himachal Pradesh, India. Three species of hymenopteran parasitoids were reared from M. persicae from this source: Aphelinus asychis Walker (Aphelinidae), Aphidius matricariae Haliday (Braconidae), and Aphidius ervi (Haliday) (Braconidae), with parasitism rates per sample date ranging from 2.3-38.6%, 4.8-58.2%, and 2.9-28.4%, respectively, during 2011-2012. This is the first report of parasitoids associated with M. persicae in greenhouse environments in India. The present findings suggest that the management of M. persicae could be possible with the addition of augmentative releases of these parasitoids, which should help reduce pesticide use in Indian vegetable production greenhouses. © 2013 Springer Science+Business Media Dordrecht.

Fallahzadeh M.,Islamic Azad University at Jahrom | Japoshvili G.,Agricultural University of Georgia | Japoshvili G.,Invertebrate Research Center | Abdimaleki R.,Islamic Azad University at Jahrom | Saghaei N.,Islamic Azad University at Marvdasht
Turkish Journal of Zoology | Year: 2014

One genus and 3 species belonging to 3 tribes of Tetracneminae (Hymenoptera, Chalcidoidea, and Encyrtidae) are recorded for the first time from Iran. The species Aenasius bambawalei Hayat is considered as a junior synonym of A. arizonensis (Girault). Nipaecoccus viridis is recorded as a new host for Leptomastix longicornis. In addition, available information for each species and comments on taxonomy, biology, and geographical distribution are included. © TÜBITAK.

Murvanidze M.,Agricultural University of Georgia | Murvanidze M.,Invertebrate Research Center | Arabuli T.,Agricultural University of Georgia | Arabuli T.,Invertebrate Research Center
Acarologia | Year: 2015

Oribatid mite diversity along an altitudinal gradient from 10 m to 850 m a.s.l was investigated on the twigs and leaves of Rhododendron ponticum L. in Mtirala National Park. Forest floor sampling (mineral soil and litter) was also performed in the same locations. Altogether, 77 species of oribatid mites were identified. 31 species were found in the canopy and 64 species were found in the mineral soil and litter. Juveniles made-up 7.6% of the canopy fauna. Ommatocepheus ocellatus (Michael, 1882), was a new finding for Mtirala National Park. Steganacarus (Tropacarus) patruelis Niedbala, 1983 was the most numerous species found on twigs and leaves. Almost the whole canopy fauna (94%) belonged to higher oribatids (Brachypilina) and the lower oribatids were only represented by S. patruelis and Camisia segnis (Herman, 1804). Canopy fauna was separated from those found on the ground supporting the importance of both habitats in maintaining overall biodiversity. The highest number of individuals and the highest number of species was found on mid-altitudes, decreasing with increasing elevation. There was no difference in species richness between twig and leaf habitats, whereas abundance was much higher on twigs. We showed that rhododendron understory harbored well established and abundant oribatid fauna preserving rare and unique species that enhance regional biodiversity. © 2015, Les Amis d'Acarologia. All rights reserved.

Mumladze L.,Ilia State University | Mumladze L.,Invertebrate Research Center
Journal of Molluscan Studies | Year: 2014

Two species of the genus Helix are widespread in Georgia: H. Lucorum has a Mediterranean distribution whereas H. buchii is a Caucasian endemic typically associated with broadleafed forests. In spite of their sympatry within Georgia, they are never syntopic. Furthermore, in contrast with H. buchii, H. Lucorum is mainly found in areas subject to human disturbance. Another large helicoid species, Caucasotachea calligera, is widespread in Georgia and usually co-occurs with either Helix. The distribution patterns of these species suggest that interspecific competition might play an important role in shaping the distribution of the two Helix species. In order to see whether their ecological niches were different enough to provide such a distribution pattern, I used predictive ecological niche models (ENM) based on the Maximum Entropy algorithm. ENMs showed that the niches of these species in Georgia were significantly different but not fully separated (∼15-36% overlap). The distributional pattern of H. Lucorum should not be considered truly natural in Georgia and may be anthropogenic. The fact that the two Helix species never co-occur may result from factors other than ecological niche differentiation at any macro scale. Since competition remains the most useful and informative assumption to explain the distributional pattern of these congeneric species, microhabitat requirements also need to be tested as a potential driver. © 2014 The Author 2014.

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