Pub Date : 2017-12-01DOI: 10.25225/fozo.v66.i4.a5.2017
S. Lovari, E. Mori
Abstract. The Indochinese leopard Panthera pardus delacouri has experienced a sharp decline in numbers and distribution, especially in Thailand. We have analyzed its diet in Om Koi Wildlife Sanctuary of North West Thailand, where only wild prey species were present. Scats were collected during the dry-hot and the dry-cold seasons. The Indian muntjac appeared to be the staple of the leopard's diet, particularly in the dry-cold season, and consumed equally with the Indian wild boar in the dry-hot one. The occurrence of the Indochinese hog deer in the diet of the leopard in Om Koi represents the first detection record of this endangered species in North West Thailand, after being long extirpated. During the dry-hot season, poachers slashed and burnt portions of forest to flush game and to provide space for poppy fields. Muntjacs are sensitive to both forest fires and poaching, whereas Indian wild boar are resilient to disturbance, which may explain their alternation in diet.
{"title":"Seasonal food habits of the endangered Indochinese leopard Panthera pardus delacouri in a protected area of North West Thailand","authors":"S. Lovari, E. Mori","doi":"10.25225/fozo.v66.i4.a5.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i4.a5.2017","url":null,"abstract":"Abstract. The Indochinese leopard Panthera pardus delacouri has experienced a sharp decline in numbers and distribution, especially in Thailand. We have analyzed its diet in Om Koi Wildlife Sanctuary of North West Thailand, where only wild prey species were present. Scats were collected during the dry-hot and the dry-cold seasons. The Indian muntjac appeared to be the staple of the leopard's diet, particularly in the dry-cold season, and consumed equally with the Indian wild boar in the dry-hot one. The occurrence of the Indochinese hog deer in the diet of the leopard in Om Koi represents the first detection record of this endangered species in North West Thailand, after being long extirpated. During the dry-hot season, poachers slashed and burnt portions of forest to flush game and to provide space for poppy fields. Muntjacs are sensitive to both forest fires and poaching, whereas Indian wild boar are resilient to disturbance, which may explain their alternation in diet.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"27 1","pages":"242 - 247"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76212524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.25225/fozo.v66.i4.a7.2017
L. Nováková, V. Vohralík
Abstract. Sexual and age variation of the common shrew was assessed in 173 individuals captured in the Novohradské hory mountain range in South Bohemia, Czech Republic. Age variation was found in seven of the fourteen measurements examined. In six of them (height of mandible, height of mandible measured below the first molar, length of mandible, cranial width, condylobasal length, length of neurocranium), values in adults were higher than those in juveniles, while the opposite was found for the length of the lower incisor. Evidence of sex differences was found only in three measurements: height of mandible measured below the first molar, cranial width and length of the lower incisor. Our results suggest the need for separating age and sex groups in studies of skull variation in Sorex shrews.
{"title":"Age and sex skull variation in a model population of the common shrew (Sorex araneus)","authors":"L. Nováková, V. Vohralík","doi":"10.25225/fozo.v66.i4.a7.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i4.a7.2017","url":null,"abstract":"Abstract. Sexual and age variation of the common shrew was assessed in 173 individuals captured in the Novohradské hory mountain range in South Bohemia, Czech Republic. Age variation was found in seven of the fourteen measurements examined. In six of them (height of mandible, height of mandible measured below the first molar, length of mandible, cranial width, condylobasal length, length of neurocranium), values in adults were higher than those in juveniles, while the opposite was found for the length of the lower incisor. Evidence of sex differences was found only in three measurements: height of mandible measured below the first molar, cranial width and length of the lower incisor. Our results suggest the need for separating age and sex groups in studies of skull variation in Sorex shrews.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"246 1","pages":"254 - 261"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74499362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.25225/fozo.v66.i4.a8.2017
M. H. Sulaiman, W. Azmi, Marina Hassan, J. L. Chong
Abstract. In this study, morphological measurements of the Malayan pangolin, namely body mass, total length, tail length and head-body length, were investigated using samples of confiscated and wild pangolins. A high correlation between body mass and total length, for both male and female pangolins was recorded, with the correlation being much stronger for females (r-value = 0.8535) than males (r-value of 0.6342). A similar trend was found on the correlation between tail length and head-body length for both sexes. In addition, new records were generated for the physical measurements of maximum body mass (13.5 kg), head-body length (79 cm), tail length (72 cm) and total length (140 cm) respectively. Results and findings of this study will contribute to a better understanding of this critically endangered fauna for conservation and husbandry purposes.
{"title":"Current updates on the morphological measurements of the Malayan pangolin (Manis javanica)","authors":"M. H. Sulaiman, W. Azmi, Marina Hassan, J. L. Chong","doi":"10.25225/fozo.v66.i4.a8.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i4.a8.2017","url":null,"abstract":"Abstract. In this study, morphological measurements of the Malayan pangolin, namely body mass, total length, tail length and head-body length, were investigated using samples of confiscated and wild pangolins. A high correlation between body mass and total length, for both male and female pangolins was recorded, with the correlation being much stronger for females (r-value = 0.8535) than males (r-value of 0.6342). A similar trend was found on the correlation between tail length and head-body length for both sexes. In addition, new records were generated for the physical measurements of maximum body mass (13.5 kg), head-body length (79 cm), tail length (72 cm) and total length (140 cm) respectively. Results and findings of this study will contribute to a better understanding of this critically endangered fauna for conservation and husbandry purposes.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"12 1","pages":"262 - 266"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82300942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract. To explore the relationship between the development of feeding behaviour and energy intake for captive giant pandas, food intake, feeding rate, and discrimination time were analysed for 26 pandas grouped by sex and age (cub, sub-adult, adult, and elderly). Feeding rates were significantly different between all age groups, except between elderly and adults. In addition, significant differences were found in discrimination time among the female age groups, and all male age groups except between the adults and sub-adults. Among adults in the same age groups, significant differences between the sexes existed in their feeding rate and discrimination time. Differences in discrimination time existed among elderly, adult and sub-adult females. This study of the dynamic characteristics of the feeding behaviour of captive pandas could provide a theoretical basis for feeding recommendations to improve the success of giant panda breeding programmes.
{"title":"The development and characteristics of feeding behaviour in captive giant pandas","authors":"Chao Chen, Peng Chen, R. Hou, Zhihe Zhang, Feifei Feng, Zhisong Yang, X. Gu, Dunwu Qi","doi":"10.25225/fozo.v66.i3.a7.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a7.2017","url":null,"abstract":"Abstract. To explore the relationship between the development of feeding behaviour and energy intake for captive giant pandas, food intake, feeding rate, and discrimination time were analysed for 26 pandas grouped by sex and age (cub, sub-adult, adult, and elderly). Feeding rates were significantly different between all age groups, except between elderly and adults. In addition, significant differences were found in discrimination time among the female age groups, and all male age groups except between the adults and sub-adults. Among adults in the same age groups, significant differences between the sexes existed in their feeding rate and discrimination time. Differences in discrimination time existed among elderly, adult and sub-adult females. This study of the dynamic characteristics of the feeding behaviour of captive pandas could provide a theoretical basis for feeding recommendations to improve the success of giant panda breeding programmes.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"274 1","pages":"189 - 195"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75400425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a2.2017
M. Ko, Yeon-Seon Jeon, Y. Won
Abstract. We investigated whether tetraploidy in Iksookimia yongdokensis adds more species specific variation in its early life history characteristics. To this end, morphological and temporal characteristics were analysed using artificial fertilisation and laboratory culture, and the results were compared to seventeen other species of the family Cobitidae. Extensive comparison of these characteristics among the cobitid species showed that tetraploid I. yongdokensis was apparently longer in egg diameter (1.54 ± 0.08 mm), hatching size (5.8 ± 0.15 mm in total length), and time to hatching (65 hours after fertilisation) than the other diploid cobitid species. With respect to these characteristics, I. yongdokensis was most similar to the congeneric species of Iksookimia (except I. pacifica). Next closest in similarity, were the other two species of different genera, Kichulchoia brevifasciata and Cobitis takatsuensis. Notably, all of the species with similar characteristics to I. yongdokensis were coincident in that they prefer a similar habitat, that being a bottom of pebbles and cobbles in middle to upper streams. In conclusion, the present study indicates that characteristics of the early life history of cobitid species are associated with both taxonomic closeness and habitat type.
{"title":"Early life history of the eastern Korean tetraploid spined loach, iksookimia yongdokensis (Pisces: Cobitidae)","authors":"M. Ko, Yeon-Seon Jeon, Y. Won","doi":"10.25225/fozo.v66.i3.a2.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a2.2017","url":null,"abstract":"Abstract. \u0000 We investigated whether tetraploidy in Iksookimia yongdokensis adds more species specific variation in its early life history characteristics. To this end, morphological and temporal characteristics were analysed using artificial fertilisation and laboratory culture, and the results were compared to seventeen other species of the family Cobitidae. Extensive comparison of these characteristics among the cobitid species showed that tetraploid I. yongdokensis was apparently longer in egg diameter (1.54 ± 0.08 mm), hatching size (5.8 ± 0.15 mm in total length), and time to hatching (65 hours after fertilisation) than the other diploid cobitid species. With respect to these characteristics, I. yongdokensis was most similar to the congeneric species of Iksookimia (except I. pacifica). Next closest in similarity, were the other two species of different genera, Kichulchoia brevifasciata and Cobitis takatsuensis. Notably, all of the species with similar characteristics to I. yongdokensis were coincident in that they prefer a similar habitat, that being a bottom of pebbles and cobbles in middle to upper streams. In conclusion, the present study indicates that characteristics of the early life history of cobitid species are associated with both taxonomic closeness and habitat type.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"140 1","pages":"153 - 162"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77666579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a4.2017
Roman Lyach, M. Čech
Abstract. This study aimed to describe the effect of cormorant predation on newly established Atlantic salmon, Salmo salar, population in three nursery streams in the upper Elbe River basin (Czech Republic). Salmon have been annually stocked into the nursery streams since 1998 as part of a salmon reintroduction programme. Salmon parr density in nursery streams was 3–81 fish per 100 m2. Only thirteen adult salmon were observed in the study area during two years of research. Altogether 912 cormorant pellets were collected, 5482 diagnostic bones were analysed, and 3915 fish were identified in the diet. Cormorant diet was composed of 24 fish species from six families but no salmon were consumed. The salmon stocking programme produces a reasonable amount of smolts but return rates of adults are very low. The cause of low return rates is not cormorant predation on nursery streams but, most likely, a low survival rate on the passage downstream. We suggest that more studies should focus on monitoring of survival and return rates of salmon in the upper River Elbe to ensure that, in the future, the salmon reintroduction programme will be really successful.
{"title":"The effect of cormorant predation on newly established Atlantic salmon population","authors":"Roman Lyach, M. Čech","doi":"10.25225/fozo.v66.i3.a4.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a4.2017","url":null,"abstract":"Abstract. This study aimed to describe the effect of cormorant predation on newly established Atlantic salmon, Salmo salar, population in three nursery streams in the upper Elbe River basin (Czech Republic). Salmon have been annually stocked into the nursery streams since 1998 as part of a salmon reintroduction programme. Salmon parr density in nursery streams was 3–81 fish per 100 m2. Only thirteen adult salmon were observed in the study area during two years of research. Altogether 912 cormorant pellets were collected, 5482 diagnostic bones were analysed, and 3915 fish were identified in the diet. Cormorant diet was composed of 24 fish species from six families but no salmon were consumed. The salmon stocking programme produces a reasonable amount of smolts but return rates of adults are very low. The cause of low return rates is not cormorant predation on nursery streams but, most likely, a low survival rate on the passage downstream. We suggest that more studies should focus on monitoring of survival and return rates of salmon in the upper River Elbe to ensure that, in the future, the salmon reintroduction programme will be really successful.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"14 1","pages":"167 - 174"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75499634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a8.2017
T. Michaelsen
Abstract. This study explores the spatial distribution of bats around lakes in valleys around 62° N in western Norway. Stationary ultrasound detectors were used to record ultrasound at various distances from the shores of lakes during the bats late pregnancy and lactation period. In this landscape, northern bat was the most commonly recorded species, followed by Myotis bats (pooled) and the soprano pipistrelle. None of the other European bat genera were present. There was a clear non-linear distribution pattern, with a steep increase in bat activity close to the shores. This is similar to what is found in fiords and thus could be a general pattern in landscapes with complex topography. Both climate and topography are factors likely to contribute to this pattern.
{"title":"Spatial distribution of bats (Chiroptera) in valleys at northern latitudes in Europe","authors":"T. Michaelsen","doi":"10.25225/fozo.v66.i3.a8.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a8.2017","url":null,"abstract":"Abstract. This study explores the spatial distribution of bats around lakes in valleys around 62° N in western Norway. Stationary ultrasound detectors were used to record ultrasound at various distances from the shores of lakes during the bats late pregnancy and lactation period. In this landscape, northern bat was the most commonly recorded species, followed by Myotis bats (pooled) and the soprano pipistrelle. None of the other European bat genera were present. There was a clear non-linear distribution pattern, with a steep increase in bat activity close to the shores. This is similar to what is found in fiords and thus could be a general pattern in landscapes with complex topography. Both climate and topography are factors likely to contribute to this pattern.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"57 1","pages":"196 - 202"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82842692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a5.2017
František Čapek, J. Prucha, V. Socha, V. Hart, H. Burda
Abstract. Magnetoreception has been widely studied in birds mainly through the paradigm of homing or seasonally appropriate migratory direction. It was found that in total darkness or under selected light regimes (differing in colour and/or intensities), migratory birds display orientation towards certain “fixed” directions which do not correspond to the migratory or homing direction. This “fixed orientation” might correspond to the so-called magnetic alignment recorded in animals of different non-avian taxa. Here we demonstrate that also “common”, non-migratory birds, pheasants, adopt a preferred position and body orientation when drinking at a circular dish. We recorded these parameters by means of camera traps in a pheasantry under control conditions and under experimental exposure to bright blue light. We identified three types of orientation at the edge of drinking dish: standing radially or tangentially with left or right eye to the dish. The position of tangentially drinking chicks was significantly non-random. While the position of radially drinking chicks was random under control conditions, it became significantly non-random, concentrated at about the north and south pole of the dish, under bright blue light. Our results show that this alignment has some similarities with the “fixed orientation”. We suggest that the preference towards a “fixed” direction serves to calibration, organization and reading of the mental (cognitive) map of the space and as a direction indicator. We discuss heuristic potential of the presented research (experimental and evaluation) design for further study on magnetoreception.
{"title":"Directional orientation of pheasant chicks at the drinking dish and its potential for research on avian magnetoreception","authors":"František Čapek, J. Prucha, V. Socha, V. Hart, H. Burda","doi":"10.25225/fozo.v66.i3.a5.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a5.2017","url":null,"abstract":"Abstract. Magnetoreception has been widely studied in birds mainly through the paradigm of homing or seasonally appropriate migratory direction. It was found that in total darkness or under selected light regimes (differing in colour and/or intensities), migratory birds display orientation towards certain “fixed” directions which do not correspond to the migratory or homing direction. This “fixed orientation” might correspond to the so-called magnetic alignment recorded in animals of different non-avian taxa. Here we demonstrate that also “common”, non-migratory birds, pheasants, adopt a preferred position and body orientation when drinking at a circular dish. We recorded these parameters by means of camera traps in a pheasantry under control conditions and under experimental exposure to bright blue light. We identified three types of orientation at the edge of drinking dish: standing radially or tangentially with left or right eye to the dish. The position of tangentially drinking chicks was significantly non-random. While the position of radially drinking chicks was random under control conditions, it became significantly non-random, concentrated at about the north and south pole of the dish, under bright blue light. Our results show that this alignment has some similarities with the “fixed orientation”. We suggest that the preference towards a “fixed” direction serves to calibration, organization and reading of the mental (cognitive) map of the space and as a direction indicator. We discuss heuristic potential of the presented research (experimental and evaluation) design for further study on magnetoreception.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"4 1","pages":"175 - 182"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83585137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a6.2017
W. Meissner, Izabela Fischer
Abstract. The common gull is a widespread species, occurring in almost the whole of Europe that shows no sexual dimorphism in plumage and some dimorphism in size. To propose a method for sexing birds from this species by linear measurements, a discriminant function analysis was applied to a set of morphometric traits in birds captured in northern Poland during the non-breeding season. In total, 138 males and 76 females were measured and sexed molecularly. The averages of measurements of males were larger than the average measurements of females. All individuals with a total head length shorter than 90.6 mm were females. However, the occurrence of larger individuals of the subspecies heinei among common gulls of the nominate subspecies canus wintering in Europe makes separating males according to a single border value of this measurement less efficient. The proposed discriminant function containing the total head length allowed for correct sexing of 95.7 % of males and 90.9 % of females. This discriminant equation may be used for sexing common gulls when DNA sampling is not possible, and could be applied to data collected in the past, providing the opportunity to re-examine the results of previous analyses. However the higher misclassification rate than in other gull species should be taken into account.
{"title":"Sexing of common gull, Larus canus, using linear measurements","authors":"W. Meissner, Izabela Fischer","doi":"10.25225/fozo.v66.i3.a6.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a6.2017","url":null,"abstract":"Abstract. The common gull is a widespread species, occurring in almost the whole of Europe that shows no sexual dimorphism in plumage and some dimorphism in size. To propose a method for sexing birds from this species by linear measurements, a discriminant function analysis was applied to a set of morphometric traits in birds captured in northern Poland during the non-breeding season. In total, 138 males and 76 females were measured and sexed molecularly. The averages of measurements of males were larger than the average measurements of females. All individuals with a total head length shorter than 90.6 mm were females. However, the occurrence of larger individuals of the subspecies heinei among common gulls of the nominate subspecies canus wintering in Europe makes separating males according to a single border value of this measurement less efficient. The proposed discriminant function containing the total head length allowed for correct sexing of 95.7 % of males and 90.9 % of females. This discriminant equation may be used for sexing common gulls when DNA sampling is not possible, and could be applied to data collected in the past, providing the opportunity to re-examine the results of previous analyses. However the higher misclassification rate than in other gull species should be taken into account.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"116 1","pages":"183 - 188"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80787747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01DOI: 10.25225/fozo.v66.i3.a3.2017
K. Halačka, M. Muška, J. Mendel, L. Vetešník
Abstract. In the Czech Republic, the Balkan spiny loach Sabanejewia balcanica was historically only known from the River Bečva, a left tributary of the River Morava, itself a main tributary of the River Danube. Following its assumed extinction in the Czech Republic, a small population was found in a 1 km stretch of the River Vlára at the Slovak border, with individuals presumably having migrated from Slovakia. In 2016, we recorded six individuals in the downstream stretch of the River Jihlava. Based on present knowledge, this appears to be a population situated wholly outside of its previously known area of distribution, and the only population presently found in the 26000 km2 River Morava drainage basin. The distance of this population from the species' present distribution area and historic findings in the River Bečva clearly indicate a much wider historical distribution of this species in the past.
{"title":"A newly discovered population of the Balkan spiny loach Sabanejewia balcanica (Karaman, 1922) in the River Jihlava, Czech Republic","authors":"K. Halačka, M. Muška, J. Mendel, L. Vetešník","doi":"10.25225/fozo.v66.i3.a3.2017","DOIUrl":"https://doi.org/10.25225/fozo.v66.i3.a3.2017","url":null,"abstract":"Abstract. In the Czech Republic, the Balkan spiny loach Sabanejewia balcanica was historically only known from the River Bečva, a left tributary of the River Morava, itself a main tributary of the River Danube. Following its assumed extinction in the Czech Republic, a small population was found in a 1 km stretch of the River Vlára at the Slovak border, with individuals presumably having migrated from Slovakia. In 2016, we recorded six individuals in the downstream stretch of the River Jihlava. Based on present knowledge, this appears to be a population situated wholly outside of its previously known area of distribution, and the only population presently found in the 26000 km2 River Morava drainage basin. The distance of this population from the species' present distribution area and historic findings in the River Bečva clearly indicate a much wider historical distribution of this species in the past.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"82 1","pages":"163 - 166"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90993881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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