Clemens Grosser - Academia.edu (original) (raw)
Papers by Clemens Grosser
Zenodo (CERN European Organization for Nuclear Research), Dec 31, 2011
Grosser, Clemens, Nesemann, Hasko F., Ć, Vladimir Peši (2011): Dina orientalis sp. nov. — an over... more Grosser, Clemens, Nesemann, Hasko F., Ć, Vladimir Peši (2011): Dina orientalis sp. nov. — an overlooked new leech (Annelida: Hirudinea: Erpobdellidae) species from the Near and Middle East. Zootaxa 2746: 20-24, DOI: 10.5281/zenodo.206857
The European zoological journal, May 31, 2023
European Journal of Taxonomy
Two species of leeches were described from Georgia in the past, Dina ratschaensis Kobakhidze, 195... more Two species of leeches were described from Georgia in the past, Dina ratschaensis Kobakhidze, 1958 from the Racha-Lechkhumi and Kvemo Svaneti region and Trocheta ariescornuta Grosser, Barjadze & Maghradze, 2021 from the Samegrelo-Zemo Svaneti region. Both species were the only known typical representatives of cave leeches in Georgia. Recently, two more species of the genus Dina R. Blanchard, 1894 have been found in karst caves in this country. These leeches are morphologically similar to D. ratschaensis, from which they differ in the shape of the reproductive system, primarily the shape of the cornua of the genital atrium and the shape and extension of the vasa deferentia and ovisacs, justifying the description of two new species, Dina imeretiensis Grosser, Barjadze & Maghradze sp. nov. from the Imereti region and Dina samegreloensis Grosser, Barjadze & Shavadze sp. nov. from the Samegrelo-Zemo Svaneti region. Data on the cave dwelling invertebrate communities in the studied caves a...
Dem Vorkommen von Egeln (Hirudineen) wird im Allgemeinen wenig Aufmerksamkeit geschenkt. Doch ste... more Dem Vorkommen von Egeln (Hirudineen) wird im Allgemeinen wenig Aufmerksamkeit geschenkt. Doch stellen verschiedene Arten recht hohe Ansprüche an ihren Lebensraum, so dass ihr Auftreten ein Beleg für gute Wasserqualität der von ihnen besiedelten Gewässer ist. Der Verfasser stellte sich im Auftrag der Biosphärenreservatsverwaltung "Mittlere Eibe" die Aufgabe, in ausgewählten Gewässern des Biosphärenreservats die Egelarten und deren Häufigkeit zu ermitteln, um damit eine Grundlage zur Bewertung der Eignung dieses Gebietes als Lebensstätte für Egel zu erhalten. Die Erfassung der Egelfauna in einem bestimmten Gebiet ist aber auch deshalb notwendig, da so die Verbreitung, Häufigkeit und etwaige Gefährdung der einzelnen Arten ermittelt werden können. Die hierbei gewonnenen Erkenntnisse sollten der Erstellung einer Roten Liste dienlich sein. Es wäre im Sinne der Erhaltung des Naturreichtums wünschenswert, wenn seltene Egelarten bundesweiten, zumindest aber regionalen Schutz genieß...
Limnetica
We reported the first record of the rare species Trocheta subviridis Dutrochet, 1817 (Arhynchobde... more We reported the first record of the rare species Trocheta subviridis Dutrochet, 1817 (Arhynchobdellida, Erpobdellidae) from north-eastern Spain (Suspiro stream at Señorio de Bértiz Natural Park, Navarra, Spain). The species was previously recorded in Spain by Cordero del Campillo (1980) and García Más and Jiménez (1981). However, the latter authors admitted (Garcia Más & Jiménez, 1984) that both citations could be considered erroneous due to a misinterpretation by Cordero del Campillo of Blanchard (1893) (Jueg, 2008). Thus, considering the limited and uncertain information about T. subviridis in Spain, we can argue that our specimen is the first valid record reported for the species in the Iberian Peninsula.
Stresemann - Exkursionsfauna von Deutschland. Band 1: Wirbellose (ohne Insekten), 2019
Based on published records and original data from recent research, a list is presented of the lee... more Based on published records and original data from recent research, a list is presented of the leeches (Hirudinea) of Montenegro. It includes 29 species and subspecies in 13 genera and 5 families. Numerous new records are reported;
Ecologica Montenegrina
A yellowish spotted and medium-sized new leech of the family Erpobdellidae with a typical annulat... more A yellowish spotted and medium-sized new leech of the family Erpobdellidae with a typical annulation of the genus Dina was found in a spring in the northeastern Montenegro. In the present study, we used an integrative taxonomic approach that combines morphological and DNA barcoding data to describe a new species, Dina crnogorensis sp. nov. Morphologically, the new species is most similar to Dina minuoculata Grosser, Moritz & Pešić, 2007 and Dina serbica Pešić & Grosser, 2022 from the same geographical region, but also to D. orientalis Grosser, Nesemann & Pešić, 2011 from the Near and Middle East. Differences in anatomy and the results of species-delimitation analyses based on COI sequences supported species status of the new species.
Ecologica Montenegrina, 2022
In the present study we used an integrative taxonomic approach that combines morphological and DN... more In the present study we used an integrative taxonomic approach that combines morphological and DNA barcoding data to describe a new species, Dina serbica sp. nov. from a spring in western Serbia. The average K2P-distance between DNA-barcode sequences of D. serbica sp. nov. and its closest relative D. minuoculata was estimated at 11.96±1.39%. Moreover, the ASAP (assemble species by automatic partitioning) species-delimitation method based on COI sequences from our study and sequences of Dina species from GenBank supported the species-status of D. serbica sp. nov. The first DNA barcoding data for D. dinarica (Sket, 1968), D. montana (Sket, 1968), D. minuoculata Grosser, Moritz & Pešić, 2007 and D. prokletijaca Grossser & Pešić, 2016 were uploaded into the Barcode of Life DataSystems database. The study confirmed the efficiency of a standard molecular COI marker in identification of Dina leeches, emphasising the need for additional morphological and molecular analysis of species of thi...
FIGURE 2. Dina sketi n. sp., holotype. A = internal anatomy (Abbreviations: a, atrium; b, ovarian... more FIGURE 2. Dina sketi n. sp., holotype. A = internal anatomy (Abbreviations: a, atrium; b, ovarian sacks; c, vas deferens; d, testisacs). B-C = atrium: B = ventral view, C = lateral view, holotype.
FIGURE 1. Dina sketi n. sp.: A = dorsal view, holotype; B = lateral view, paratype; C = mouth ope... more FIGURE 1. Dina sketi n. sp.: A = dorsal view, holotype; B = lateral view, paratype; C = mouth opening (left, paratype; right, holotype); D = annulation pattern, holotype.
Xerobdella anulata Autrum, 1958 was described from Sarajevo and Bjelašnica (Bosnia and Herzegovin... more Xerobdella anulata Autrum, 1958 was described from Sarajevo and Bjelašnica (Bosnia and Herzegovina). Since, only a few additional records have been published. Recently, two specimens of this land leech were found on Tara Mountain (Serbia). This is the first record of X. anulata in Serbia and the most eastern finding of these species and the genus Xerobdella in total.
FIGURE 2A–D. Dina orientalis sp. nov., A = head-region and oral sucker; left holotype, right para... more FIGURE 2A–D. Dina orientalis sp. nov., A = head-region and oral sucker; left holotype, right paratype, B = colour of the dorsal surface, paratype; C = annulation and position of genital pores (Abbreviations: m = male genital pore, f = female genital pore), paratype; D = genital system (Abbreviations: a = vas deferens, b = ovisacks, c = testis), holotype.
FIGURE 1A–E. Dina orientalis sp. nov. (A–B specimen from Baalbek, Lebanon, after Nesemann 1993); ... more FIGURE 1A–E. Dina orientalis sp. nov. (A–B specimen from Baalbek, Lebanon, after Nesemann 1993); A = dorsal, B = lateral; C = genital atrium, ventral view, D = atrium, lateral view (C–D holotype), E = atrium, dorsolateral view (specimen from Iran)
Grosser, C., Pesic, V.: First record of Erpobdella concolor (Annandale, 1913) (Hirudinida: Erpobd... more Grosser, C., Pesic, V.: First record of Erpobdella concolor (Annandale, 1913) (Hirudinida: Erpobdellidae) from Greece. Biologica Nyssana, 4 (1-2), December 2013: 97-98. Erpobdella concolor (Annandale, 1913) was recorded for the first time from a spring in the Peloponnese, Greece. This locality represents the westernmost spot of the species range known so far.
Barbronia wuttkei (Kutschera, 2004) was described as Erpobdella wuttkei, allegedly showing typica... more Barbronia wuttkei (Kutschera, 2004) was described as Erpobdella wuttkei, allegedly showing typical characteristics of the genus Erpobdella (fam. Erpobdellidae). Investigations on two specimens of this leech, obtained from the author, revealed that the description is inaccurate and partly wrong. Results of morphological, anatomical and molecular phylogenetic analyses clearly place it in the genus Barbronia (fam. Salifidae). Since available morphological, anatomical and molecular data do not permit a clear and unambiguous synonimization with any of the hitherto described Barbronia species, we propose to retain it as a nominal species of this genus.
Ecologica Montenegrina, 2021
A new leech species Trocheta ariescornuta n. sp. is described and illustrated here based on two s... more A new leech species Trocheta ariescornuta n. sp. is described and illustrated here based on two specimens found in Motena Cave in western Georgia, Caucasus. This species differs from the known congeners and other similar Erpobdellids of the region, including Georgian cavernicolous leech - Dina ratschaensis Kobaķhidze, 1958 in a complex of external and internal morphological characteristics: colour, annulation, position of genital pores, shape of the genital atrium with strong coiled cornua (similar to the horns of a ram). Cave inhabitant invertebrate community for Motena Cave is provided.
GROSSER, C.; HEIDECKE, D.; MORITZ, G.: Studies of the suitability of native Hirudinea as bio-indi... more GROSSER, C.; HEIDECKE, D.; MORITZ, G.: Studies of the suitability of native Hirudinea as bio-indicators for running water. - Hercynia N.F. 34 (2001): 101 - 127. The occurence and frequency of leech species of different running water in the south of SaxonyAnhalt have been analyzed in dependence on the water pollution. It was possible to find out something about the bio-indication of some species and ecological guilds. Further more a Hirudinea indication model has been developed. This model offers an easy way of estimating the chemical parameter of a strech of running-water with the help of leeches, and of grading the water quality. The findings conceming the effect that certain concentrations of different chemical parameters hamper the development of the respective leech species might give Stimulation for assessing Iimits of the pollution of drinking-water. The determination key that is given contains nearly all German leech taxa of'fresh-water at the time of the creation of the ...
Zenodo (CERN European Organization for Nuclear Research), Dec 31, 2011
Grosser, Clemens, Nesemann, Hasko F., Ć, Vladimir Peši (2011): Dina orientalis sp. nov. — an over... more Grosser, Clemens, Nesemann, Hasko F., Ć, Vladimir Peši (2011): Dina orientalis sp. nov. — an overlooked new leech (Annelida: Hirudinea: Erpobdellidae) species from the Near and Middle East. Zootaxa 2746: 20-24, DOI: 10.5281/zenodo.206857
The European zoological journal, May 31, 2023
European Journal of Taxonomy
Two species of leeches were described from Georgia in the past, Dina ratschaensis Kobakhidze, 195... more Two species of leeches were described from Georgia in the past, Dina ratschaensis Kobakhidze, 1958 from the Racha-Lechkhumi and Kvemo Svaneti region and Trocheta ariescornuta Grosser, Barjadze & Maghradze, 2021 from the Samegrelo-Zemo Svaneti region. Both species were the only known typical representatives of cave leeches in Georgia. Recently, two more species of the genus Dina R. Blanchard, 1894 have been found in karst caves in this country. These leeches are morphologically similar to D. ratschaensis, from which they differ in the shape of the reproductive system, primarily the shape of the cornua of the genital atrium and the shape and extension of the vasa deferentia and ovisacs, justifying the description of two new species, Dina imeretiensis Grosser, Barjadze & Maghradze sp. nov. from the Imereti region and Dina samegreloensis Grosser, Barjadze & Shavadze sp. nov. from the Samegrelo-Zemo Svaneti region. Data on the cave dwelling invertebrate communities in the studied caves a...
Dem Vorkommen von Egeln (Hirudineen) wird im Allgemeinen wenig Aufmerksamkeit geschenkt. Doch ste... more Dem Vorkommen von Egeln (Hirudineen) wird im Allgemeinen wenig Aufmerksamkeit geschenkt. Doch stellen verschiedene Arten recht hohe Ansprüche an ihren Lebensraum, so dass ihr Auftreten ein Beleg für gute Wasserqualität der von ihnen besiedelten Gewässer ist. Der Verfasser stellte sich im Auftrag der Biosphärenreservatsverwaltung "Mittlere Eibe" die Aufgabe, in ausgewählten Gewässern des Biosphärenreservats die Egelarten und deren Häufigkeit zu ermitteln, um damit eine Grundlage zur Bewertung der Eignung dieses Gebietes als Lebensstätte für Egel zu erhalten. Die Erfassung der Egelfauna in einem bestimmten Gebiet ist aber auch deshalb notwendig, da so die Verbreitung, Häufigkeit und etwaige Gefährdung der einzelnen Arten ermittelt werden können. Die hierbei gewonnenen Erkenntnisse sollten der Erstellung einer Roten Liste dienlich sein. Es wäre im Sinne der Erhaltung des Naturreichtums wünschenswert, wenn seltene Egelarten bundesweiten, zumindest aber regionalen Schutz genieß...
Limnetica
We reported the first record of the rare species Trocheta subviridis Dutrochet, 1817 (Arhynchobde... more We reported the first record of the rare species Trocheta subviridis Dutrochet, 1817 (Arhynchobdellida, Erpobdellidae) from north-eastern Spain (Suspiro stream at Señorio de Bértiz Natural Park, Navarra, Spain). The species was previously recorded in Spain by Cordero del Campillo (1980) and García Más and Jiménez (1981). However, the latter authors admitted (Garcia Más & Jiménez, 1984) that both citations could be considered erroneous due to a misinterpretation by Cordero del Campillo of Blanchard (1893) (Jueg, 2008). Thus, considering the limited and uncertain information about T. subviridis in Spain, we can argue that our specimen is the first valid record reported for the species in the Iberian Peninsula.
Stresemann - Exkursionsfauna von Deutschland. Band 1: Wirbellose (ohne Insekten), 2019
Based on published records and original data from recent research, a list is presented of the lee... more Based on published records and original data from recent research, a list is presented of the leeches (Hirudinea) of Montenegro. It includes 29 species and subspecies in 13 genera and 5 families. Numerous new records are reported;
Ecologica Montenegrina
A yellowish spotted and medium-sized new leech of the family Erpobdellidae with a typical annulat... more A yellowish spotted and medium-sized new leech of the family Erpobdellidae with a typical annulation of the genus Dina was found in a spring in the northeastern Montenegro. In the present study, we used an integrative taxonomic approach that combines morphological and DNA barcoding data to describe a new species, Dina crnogorensis sp. nov. Morphologically, the new species is most similar to Dina minuoculata Grosser, Moritz & Pešić, 2007 and Dina serbica Pešić & Grosser, 2022 from the same geographical region, but also to D. orientalis Grosser, Nesemann & Pešić, 2011 from the Near and Middle East. Differences in anatomy and the results of species-delimitation analyses based on COI sequences supported species status of the new species.
Ecologica Montenegrina, 2022
In the present study we used an integrative taxonomic approach that combines morphological and DN... more In the present study we used an integrative taxonomic approach that combines morphological and DNA barcoding data to describe a new species, Dina serbica sp. nov. from a spring in western Serbia. The average K2P-distance between DNA-barcode sequences of D. serbica sp. nov. and its closest relative D. minuoculata was estimated at 11.96±1.39%. Moreover, the ASAP (assemble species by automatic partitioning) species-delimitation method based on COI sequences from our study and sequences of Dina species from GenBank supported the species-status of D. serbica sp. nov. The first DNA barcoding data for D. dinarica (Sket, 1968), D. montana (Sket, 1968), D. minuoculata Grosser, Moritz & Pešić, 2007 and D. prokletijaca Grossser & Pešić, 2016 were uploaded into the Barcode of Life DataSystems database. The study confirmed the efficiency of a standard molecular COI marker in identification of Dina leeches, emphasising the need for additional morphological and molecular analysis of species of thi...
FIGURE 2. Dina sketi n. sp., holotype. A = internal anatomy (Abbreviations: a, atrium; b, ovarian... more FIGURE 2. Dina sketi n. sp., holotype. A = internal anatomy (Abbreviations: a, atrium; b, ovarian sacks; c, vas deferens; d, testisacs). B-C = atrium: B = ventral view, C = lateral view, holotype.
FIGURE 1. Dina sketi n. sp.: A = dorsal view, holotype; B = lateral view, paratype; C = mouth ope... more FIGURE 1. Dina sketi n. sp.: A = dorsal view, holotype; B = lateral view, paratype; C = mouth opening (left, paratype; right, holotype); D = annulation pattern, holotype.
Xerobdella anulata Autrum, 1958 was described from Sarajevo and Bjelašnica (Bosnia and Herzegovin... more Xerobdella anulata Autrum, 1958 was described from Sarajevo and Bjelašnica (Bosnia and Herzegovina). Since, only a few additional records have been published. Recently, two specimens of this land leech were found on Tara Mountain (Serbia). This is the first record of X. anulata in Serbia and the most eastern finding of these species and the genus Xerobdella in total.
FIGURE 2A–D. Dina orientalis sp. nov., A = head-region and oral sucker; left holotype, right para... more FIGURE 2A–D. Dina orientalis sp. nov., A = head-region and oral sucker; left holotype, right paratype, B = colour of the dorsal surface, paratype; C = annulation and position of genital pores (Abbreviations: m = male genital pore, f = female genital pore), paratype; D = genital system (Abbreviations: a = vas deferens, b = ovisacks, c = testis), holotype.
FIGURE 1A–E. Dina orientalis sp. nov. (A–B specimen from Baalbek, Lebanon, after Nesemann 1993); ... more FIGURE 1A–E. Dina orientalis sp. nov. (A–B specimen from Baalbek, Lebanon, after Nesemann 1993); A = dorsal, B = lateral; C = genital atrium, ventral view, D = atrium, lateral view (C–D holotype), E = atrium, dorsolateral view (specimen from Iran)
Grosser, C., Pesic, V.: First record of Erpobdella concolor (Annandale, 1913) (Hirudinida: Erpobd... more Grosser, C., Pesic, V.: First record of Erpobdella concolor (Annandale, 1913) (Hirudinida: Erpobdellidae) from Greece. Biologica Nyssana, 4 (1-2), December 2013: 97-98. Erpobdella concolor (Annandale, 1913) was recorded for the first time from a spring in the Peloponnese, Greece. This locality represents the westernmost spot of the species range known so far.
Barbronia wuttkei (Kutschera, 2004) was described as Erpobdella wuttkei, allegedly showing typica... more Barbronia wuttkei (Kutschera, 2004) was described as Erpobdella wuttkei, allegedly showing typical characteristics of the genus Erpobdella (fam. Erpobdellidae). Investigations on two specimens of this leech, obtained from the author, revealed that the description is inaccurate and partly wrong. Results of morphological, anatomical and molecular phylogenetic analyses clearly place it in the genus Barbronia (fam. Salifidae). Since available morphological, anatomical and molecular data do not permit a clear and unambiguous synonimization with any of the hitherto described Barbronia species, we propose to retain it as a nominal species of this genus.
Ecologica Montenegrina, 2021
A new leech species Trocheta ariescornuta n. sp. is described and illustrated here based on two s... more A new leech species Trocheta ariescornuta n. sp. is described and illustrated here based on two specimens found in Motena Cave in western Georgia, Caucasus. This species differs from the known congeners and other similar Erpobdellids of the region, including Georgian cavernicolous leech - Dina ratschaensis Kobaķhidze, 1958 in a complex of external and internal morphological characteristics: colour, annulation, position of genital pores, shape of the genital atrium with strong coiled cornua (similar to the horns of a ram). Cave inhabitant invertebrate community for Motena Cave is provided.
GROSSER, C.; HEIDECKE, D.; MORITZ, G.: Studies of the suitability of native Hirudinea as bio-indi... more GROSSER, C.; HEIDECKE, D.; MORITZ, G.: Studies of the suitability of native Hirudinea as bio-indicators for running water. - Hercynia N.F. 34 (2001): 101 - 127. The occurence and frequency of leech species of different running water in the south of SaxonyAnhalt have been analyzed in dependence on the water pollution. It was possible to find out something about the bio-indication of some species and ecological guilds. Further more a Hirudinea indication model has been developed. This model offers an easy way of estimating the chemical parameter of a strech of running-water with the help of leeches, and of grading the water quality. The findings conceming the effect that certain concentrations of different chemical parameters hamper the development of the respective leech species might give Stimulation for assessing Iimits of the pollution of drinking-water. The determination key that is given contains nearly all German leech taxa of'fresh-water at the time of the creation of the ...