The life-history and behaviour of the chironomid Metriocnemus ( Inermipupa ) carmencitabertarum was studied for three years and a comparison was made between two populations in the Netherlands. Key life-history characteristics are reported, including the number of generations (2-5 generations) and duration of larval development (19-55 days). Life-history characteristics differed between the two populations and between generations within a population. These differences were likely related to differences in competitors (mainly Chironomus riparius Meigen ) and thermal characteristics of the habitat from variations in water volume and ambient temperature. Results suggested a diapause in summer, when water levels dropped, and not in winter. A clear seasonal pattern in body size was found with pupal length increasing steeply at the beginning of the summer. The increase in body size was positively correlated with mean ambient temperature during larval development. This correlation is in contrast with the Temperature-Size Rule (TSR) in ectotherms, which postulates a negative correlation between temperature and adult body size. The chance of ectotherm predators being present in the habitat is low, which may explain this feature. Life history characteristics supported a recent northward range expansionfor M. (I.) carmencitabertarum due to warmer winters. If correct, it is predicted that the species will be found in Scotland and northern Germany and/or southern Denmark in the near future.
{"title":"Life cycle of natural populations of Metriocnemus (Inermipupa) carmencitabertarum Langton & Cobo 1997 (Diptera: Chironomidae) in The Netherlands: indications for a southern origin?","authors":"J. Kuper","doi":"10.5324/cjcr.v0i30.2268","DOIUrl":"https://doi.org/10.5324/cjcr.v0i30.2268","url":null,"abstract":"The life-history and behaviour of the chironomid Metriocnemus ( Inermipupa ) carmencitabertarum was studied for three years and a comparison was made between two populations in the Netherlands. Key life-history characteristics are reported, including the number of generations (2-5 generations) and duration of larval development (19-55 days). Life-history characteristics differed between the two populations and between generations within a population. These differences were likely related to differences in competitors (mainly Chironomus riparius Meigen ) and thermal characteristics of the habitat from variations in water volume and ambient temperature. Results suggested a diapause in summer, when water levels dropped, and not in winter. A clear seasonal pattern in body size was found with pupal length increasing steeply at the beginning of the summer. The increase in body size was positively correlated with mean ambient temperature during larval development. This correlation is in contrast with the Temperature-Size Rule (TSR) in ectotherms, which postulates a negative correlation between temperature and adult body size. The chance of ectotherm predators being present in the habitat is low, which may explain this feature. Life history characteristics supported a recent northward range expansionfor M. (I.) carmencitabertarum due to warmer winters. If correct, it is predicted that the species will be found in Scotland and northern Germany and/or southern Denmark in the near future.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"55-66"},"PeriodicalIF":0.0,"publicationDate":"2017-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47439743","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}
Claudiotendipes n. gen. and Sigmoitendipes n. gen. are described and figured based on adults, pupae and larvae. Two species are included in Claudiotendipes: the type species, C. froehlichi n. sp. from Bahia, Rio de Janeiro, Sao Paulo and Santa Catarina States in Brazil; and C. epleri n. sp. from Costa Rica. Five species are included in Sigmoitendipes, all from Brazil: the type species, S. susanae n. sp. from Sao Paulo, Mato Grosso, Amazonas and Para States; S. fittkaui n. sp. from Mato Grosso and Para; S. reissi n. sp. from Sao Paulo; and S. oliveirai n. sp. and S. spiesi n. sp., both from Mato Grosso. A cladistic analysis grouped the two new genera with Beardius, Oukuriella and Endotribelos. Keys to the males of the two new genera are presented.
{"title":"Two new Neotropical Chironominae genera (Diptera: Chironomidae)","authors":"T. Andersen, H. Mendes, L. C. Pinho","doi":"10.5324/CJCR.V0I30.2029","DOIUrl":"https://doi.org/10.5324/CJCR.V0I30.2029","url":null,"abstract":"Claudiotendipes n. gen. and Sigmoitendipes n. gen. are described and figured based on adults, pupae and larvae. Two species are included in Claudiotendipes: the type species, C. froehlichi n. sp. from Bahia, Rio de Janeiro, Sao Paulo and Santa Catarina States in Brazil; and C. epleri n. sp. from Costa Rica. Five species are included in Sigmoitendipes, all from Brazil: the type species, S. susanae n. sp. from Sao Paulo, Mato Grosso, Amazonas and Para States; S. fittkaui n. sp. from Mato Grosso and Para; S. reissi n. sp. from Sao Paulo; and S. oliveirai n. sp. and S. spiesi n. sp., both from Mato Grosso. A cladistic analysis grouped the two new genera with Beardius, Oukuriella and Endotribelos. Keys to the males of the two new genera are presented.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"26-54"},"PeriodicalIF":0.0,"publicationDate":"2017-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47613316","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}
We report on the perceived impact of bird faeces as an agent of organic matter transfer on the density and species richness of the Chironomidae in the lakes of the Bolshoy Aynov island (Barents Sea, Northern Russia). In total we recorded 15 species of Chironomidae. Highest species richness and specimen numbers were recorded in Lake Severnoe, closest to the large bird colony.
{"title":"Impact of the bird-manure caused eutrophication on the abundance and diversity of chironomid larvae (Diptera; Chironomidae) in lakes of the Bolshoy Aynov Island (Russia, Barents Sea)","authors":"V. Baranov, I. Nekhaev","doi":"10.5324/CJCR.V0I30.2260","DOIUrl":"https://doi.org/10.5324/CJCR.V0I30.2260","url":null,"abstract":"We report on the perceived impact of bird faeces as an agent of organic matter transfer on the density and species richness of the Chironomidae in the lakes of the Bolshoy Aynov island (Barents Sea, Northern Russia). In total we recorded 15 species of Chironomidae. Highest species richness and specimen numbers were recorded in Lake Severnoe, closest to the large bird colony.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"72-75"},"PeriodicalIF":0.0,"publicationDate":"2017-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41607795","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}
Two species of Chironomus with essentially identical adult wing patterns, C. strenzkei and C. striatipennis , have been reported from Brazil. Specimens were collected from the same region in the Manaus area some 50 years apart. Morphological, cytological and DNA Barcode comparisons all confirm that these two species are inseparable on any of the characteristics studied. Moreover, for the mitochondrial COI region investigated, the sequences are completely identical, and polytene chromosome banding patterns are shared between C. strenzkei and C. striatipennis populations from Japan. I therefore argue that the former species must be a junior synonym of C. striatipennis . As a result of the synonymy, C. striatipennis now becomes a new record for California and North America, and hence has a Holarctic distribution. The DNA sequence comparisons suggest that the Brazilian population may have derived from China, rather than Korea as suggested previously, and that the Californian population may not have been introduced from South America, but could equally likely have come from Asia.
{"title":"Chironomus strenzkei Fittkau, 1968 is a junior synonym of C. striatipennis Kieffer, 1910","authors":"John Martin","doi":"10.5324/CJCR.V0I30.2190","DOIUrl":"https://doi.org/10.5324/CJCR.V0I30.2190","url":null,"abstract":"Two species of Chironomus with essentially identical adult wing patterns, C. strenzkei and C. striatipennis , have been reported from Brazil. Specimens were collected from the same region in the Manaus area some 50 years apart. Morphological, cytological and DNA Barcode comparisons all confirm that these two species are inseparable on any of the characteristics studied. Moreover, for the mitochondrial COI region investigated, the sequences are completely identical, and polytene chromosome banding patterns are shared between C. strenzkei and C. striatipennis populations from Japan. I therefore argue that the former species must be a junior synonym of C. striatipennis . As a result of the synonymy, C. striatipennis now becomes a new record for California and North America, and hence has a Holarctic distribution. The DNA sequence comparisons suggest that the Brazilian population may have derived from China, rather than Korea as suggested previously, and that the Californian population may not have been introduced from South America, but could equally likely have come from Asia.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"19-25"},"PeriodicalIF":0.0,"publicationDate":"2017-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47160695","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}
{"title":"Prof. Dr. Wolfgang Friedrich Wülker","authors":"P. Michailova, John Martin, M. Butler","doi":"10.5324/CJCR.V0I30.2252","DOIUrl":"https://doi.org/10.5324/CJCR.V0I30.2252","url":null,"abstract":"","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"82-83"},"PeriodicalIF":0.0,"publicationDate":"2017-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42980188","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}
An annotated list of the species of Chironomidae found at a four-hectare site, mostly cloud forest, in Costa Rica is presented. A total of 137 species, 98 of them undescribed, in 63 genera (17 apparently new), were found.
{"title":"An annotated preliminary list of the Chironomidae (Diptera) of Zurquí, Costa Rica","authors":"J. H. Epler","doi":"10.5324/CJCR.V0I30.2240","DOIUrl":"https://doi.org/10.5324/CJCR.V0I30.2240","url":null,"abstract":"An annotated list of the species of Chironomidae found at a four-hectare site, mostly cloud forest, in Costa Rica is presented. A total of 137 species, 98 of them undescribed, in 63 genera (17 apparently new), were found.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"4-18"},"PeriodicalIF":0.0,"publicationDate":"2017-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46157670","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}
This time of year we often take time to celebrate the work of chironomid workers that have retired from their positions or passed on over the course of the past year. While we are still, of course, taking time to celebrate these individuals in this year’s issue, we thought it might also be appropriate to take time to look to the future, and think about how we are able to inspire a new generation of chironomid enthusiasts.
{"title":"A Time to Reflect and a Look to the Future","authors":"Alyssa M. Anderson","doi":"10.5324/CJCR.V0I29.2178","DOIUrl":"https://doi.org/10.5324/CJCR.V0I29.2178","url":null,"abstract":"This time of year we often take time to celebrate the work of chironomid workers that have retired from their positions or passed on over the course of the past year. While we are still, of course, taking time to celebrate these individuals in this year’s issue, we thought it might also be appropriate to take time to look to the future, and think about how we are able to inspire a new generation of chironomid enthusiasts.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"2-3"},"PeriodicalIF":0.0,"publicationDate":"2016-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70780531","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}
Metriocnemus (Inermipupa) carmencitabertarum Langton and Cobo, 1997 was described from specimens collected by Fernando Cobo in 1989 and 1994 in Spain and Portugal (Langton and Cobo, 1997) and was subsequently reported from the Azorean islands of Terceira (Murray et al., 2004) and Santa Maria (Ramos et al. 2010). On mainland Europe, north of the Iberian Peninsula, the species was reported from the Netherlands by Kuper et al. (2012) and Kuper (2015). It is cited as being present in Estonia and Poland in Fauna Europaea, (Spies and Sæther, 2013) but these records are unconfirmed. The species was first reported in the British Isles from Somerset, England by Langton and Wilson (2012) and from County Meath in Ireland by Murray (2012). That record from England is thus far unique. However, M. carmencitabertarum is now known from nine locations in Ireland, eight, including one in Northern Ireland cited in Murray et al. (2014) and a ninth location recently reported by Murray (2016).
1997年，Fernando Cobo于1989年和1994年在西班牙和葡萄牙(Langton和Cobo, 1997年)收集的标本中描述了Metriocnemus (Inermipupa) carmencitabertarum Langton和Cobo，随后在亚速尔群岛Terceira (Murray等人，2004年)和Santa Maria (Ramos等人，2010年)报道了该物种。在欧洲大陆，伊比利亚半岛北部，Kuper等人(2012)和Kuper(2015)从荷兰报告了该物种。在《欧洲动物群》(Fauna Europaea)中，它被认为存在于爱沙尼亚和波兰(Spies and Sæther, 2013)，但这些记录未经证实。兰顿和威尔逊(2012年)在英国萨默塞特的不列颠群岛首次报道了该物种，默里(2012年)在爱尔兰米斯郡首次报道了该物种。迄今为止，英格兰的记录是独一无二的。然而，M. carmencitabertarum现在在爱尔兰的九个地点已知，其中八个地点，包括Murray等人(2014)引用的北爱尔兰的一个地点，以及Murray(2016)最近报道的第九个地点。
{"title":"A new record of Metriocnemus (Inermipupa) carmencitabertarum (Orthocladiinae) from England","authors":"D. Murray","doi":"10.5324/CJCR.V0I29.2174","DOIUrl":"https://doi.org/10.5324/CJCR.V0I29.2174","url":null,"abstract":"Metriocnemus (Inermipupa) carmencitabertarum Langton and Cobo, 1997 was described from specimens collected by Fernando Cobo in 1989 and 1994 in Spain and Portugal (Langton and Cobo, 1997) and was subsequently reported from the Azorean islands of Terceira (Murray et al., 2004) and Santa Maria (Ramos et al. 2010). On mainland Europe, north of the Iberian Peninsula, the species was reported from the Netherlands by Kuper et al. (2012) and Kuper (2015). It is cited as being present in Estonia and Poland in Fauna Europaea, (Spies and Sæther, 2013) but these records are unconfirmed. The species was first reported in the British Isles from Somerset, England by Langton and Wilson (2012) and from County Meath in Ireland by Murray (2012). That record from England is thus far unique. However, M. carmencitabertarum is now known from nine locations in Ireland, eight, including one in Northern Ireland cited in Murray et al. (2014) and a ninth location recently reported by Murray (2016).","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"43-44"},"PeriodicalIF":0.0,"publicationDate":"2016-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70780763","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}
Dr Hiroshi Hashimoto, Emeritus Professor of Shizuoka University, passed away quietly on 26 February 2015 in Kanagawa, Japan, at the age of 90. He was a distinguished entomologist and authority of Japanese dipterology, and produced many conspicuous achievements, especially on chironomids. He was also an excellent taxonomist of fresh-water hydroids.
{"title":"In memoriam: Hiroshi Hashimoto (1924–2015)","authors":"Hiromi Niitsuma","doi":"10.5324/CJCR.V0I29.2176","DOIUrl":"https://doi.org/10.5324/CJCR.V0I29.2176","url":null,"abstract":"Dr Hiroshi Hashimoto, Emeritus Professor of Shizuoka University, passed away quietly on 26 February 2015 in Kanagawa, Japan, at the age of 90. He was a distinguished entomologist and authority of Japanese dipterology, and produced many conspicuous achievements, especially on chironomids. He was also an excellent taxonomist of fresh-water hydroids.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"46-48"},"PeriodicalIF":0.0,"publicationDate":"2016-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70780461","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}
Alyssa M. Anderson, N. Roberts, Tessa I. Durnin, Katherine M. Wollman
Shifting from the research-intensive environment of graduate school to a tenure-track gig at a primarily undergraduate institution (PUI) required a bit of a change in mindset. No longer could I (Anderson) spend day after day at in the microscope or hour after hour thinking about how to analyze, interpret or present a certain data set. Instead, my time began to fill with lecture and syllabi prep and brainstorming sessions on how to best relay difficult scientific concepts to groups of naïve undergraduate students. My personal research time was suddenly shoved into tight 1-2 hour pockets of time, often at the end of the week, or restricted to summer months, when teaching obligations are limited.
{"title":"Benefits of chironomid research: Perspectives from undergraduate researchers","authors":"Alyssa M. Anderson, N. Roberts, Tessa I. Durnin, Katherine M. Wollman","doi":"10.5324/CJCR.V0I29.2179","DOIUrl":"https://doi.org/10.5324/CJCR.V0I29.2179","url":null,"abstract":"Shifting from the research-intensive environment of graduate school to a tenure-track gig at a primarily undergraduate institution (PUI) required a bit of a change in mindset. No longer could I (Anderson) spend day after day at in the microscope or hour after hour thinking about how to analyze, interpret or present a certain data set. Instead, my time began to fill with lecture and syllabi prep and brainstorming sessions on how to best relay difficult scientific concepts to groups of naïve undergraduate students. My personal research time was suddenly shoved into tight 1-2 hour pockets of time, often at the end of the week, or restricted to summer months, when teaching obligations are limited.","PeriodicalId":30852,"journal":{"name":"CHIRONOMUS Journal of Chironomidae Research","volume":"1 1","pages":"39-42"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70780556","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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