{"title":"New species of Eclipta from the Brazilian Atlantic Rainforest (Coleoptera, Cerambycidae, Cerambycinae, Rhinotragini)","authors":"F. E. L. Nascimento, A. Santos-Silva","doi":"10.1590/1678-4766E2017027","DOIUrl":"https://doi.org/10.1590/1678-4766E2017027","url":null,"abstract":"In this work, a new species of cerambycid beetles is described and illustrated: Eclipta dendensis , from the state of Bahia, Brazil.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80392078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-10-09DOI: 10.1590/1678-4766E2017030
M. Solé, D. Loebmann
The phytotelm-dwelling frogs from the genus Phyllodytes Wagler, 1830 have been characterized as specialist frogs regarding their diet strategy which is mainly composed by colonial insects. Herein, we used two species of ants ( Camponotus sp. and Gnamtogenys sp.) with distinct defensive mechanisms to test the predatory behavior of Phyllodytes luteolus . The experiment was conducted with frogs inhabiting a patch of 20 bromeliads ( Aechmea cf. blanchetiana ). Ants were offered randomly to the frogs until we obtained 10 observations of predation of each ant species. We observed and recorded the time that P. luteolus needed to keep each ant species inside its mouth before it could ingest it. Predatory behavior was highly distinct. While Camponotus were caught and swallowed within six seconds and without apparent discomfort, individuals of P. luteolus had more difficulty in swallowing Gnamtogenys individuals, the time of manipulation ranging from 57 to 177 seconds. The mean values of time of predation observed in each treatment was highly significant (p<0.001). We conclude that differences found in the time of manipulation are highly correlated with defense mechanisms of each species of ants.
{"title":"Disgusting or delicious? Predatory behavior of the hylid frog Phyllodytes luteolus on sympatric ants","authors":"M. Solé, D. Loebmann","doi":"10.1590/1678-4766E2017030","DOIUrl":"https://doi.org/10.1590/1678-4766E2017030","url":null,"abstract":"The phytotelm-dwelling frogs from the genus Phyllodytes Wagler, 1830 have been characterized as specialist frogs regarding their diet strategy which is mainly composed by colonial insects. Herein, we used two species of ants ( Camponotus sp. and Gnamtogenys sp.) with distinct defensive mechanisms to test the predatory behavior of Phyllodytes luteolus . The experiment was conducted with frogs inhabiting a patch of 20 bromeliads ( Aechmea cf. blanchetiana ). Ants were offered randomly to the frogs until we obtained 10 observations of predation of each ant species. We observed and recorded the time that P. luteolus needed to keep each ant species inside its mouth before it could ingest it. Predatory behavior was highly distinct. While Camponotus were caught and swallowed within six seconds and without apparent discomfort, individuals of P. luteolus had more difficulty in swallowing Gnamtogenys individuals, the time of manipulation ranging from 57 to 177 seconds. The mean values of time of predation observed in each treatment was highly significant (p<0.001). We conclude that differences found in the time of manipulation are highly correlated with defense mechanisms of each species of ants.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77861713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-10-09DOI: 10.1590/1678-4766E2017035
R. M. Dias, J. C. G. Ortega, L. Gomes, A. Agostinho
ABSTRACT. The relationships between the degree of dietary overlap and food availability, and implications for food selectivity of fish species were evaluated at floodplain lakes on the upper Parana River floodplain. The hypothesis tested were: i) species become less selective in lakes with high availability of food resources; ii) species present higher food overlap in conditions of high availability of food resources; and iii) individuals of the species, become less specialized, in this case the food overlap will be high in conditions of more availability of food resources. In general, with the results was observed that species become less selective when the environment provided higher availability of food resources. Interspecific overlap did not show a pattern when evaluating availability of food resources in the lakes. However, intraspecific overlap tended to be more accentuated in conditions of high availability of resource food.
{"title":"Trophic relationships in fish assemblages of Neotropical floodplain lakes: selectivity and feeding overlap mediated by food availability","authors":"R. M. Dias, J. C. G. Ortega, L. Gomes, A. Agostinho","doi":"10.1590/1678-4766E2017035","DOIUrl":"https://doi.org/10.1590/1678-4766E2017035","url":null,"abstract":"ABSTRACT. The relationships between the degree of dietary overlap and food availability, and implications for food selectivity of fish species were evaluated at floodplain lakes on the upper Parana River floodplain. The hypothesis tested were: i) species become less selective in lakes with high availability of food resources; ii) species present higher food overlap in conditions of high availability of food resources; and iii) individuals of the species, become less specialized, in this case the food overlap will be high in conditions of more availability of food resources. In general, with the results was observed that species become less selective when the environment provided higher availability of food resources. Interspecific overlap did not show a pattern when evaluating availability of food resources in the lakes. However, intraspecific overlap tended to be more accentuated in conditions of high availability of resource food.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84526499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-10-09DOI: 10.1590/1678-4766E2017032
V. R. Sousa, M. Couri
Japanagromyza Sasakawa (Diptera, Agromyzidae) is poorly known from Brazil, with only three species recorded. This contribution increases the knowledge of the genus in Brazil, where two new species are described and illustrations of male and female adults and terminalia are presented. The material was collected in Mato Grosso, Mato Grosso do Sul and Rondonia states and is deposited in the collections of Museu de Zoologia, Universidade de Sao Paulo and Museu Nacional, Universidade do Rio de Janeiro.
{"title":"Two new Japanagromyza Sasakawa (Diptera: Agromyzidae) from Brazil","authors":"V. R. Sousa, M. Couri","doi":"10.1590/1678-4766E2017032","DOIUrl":"https://doi.org/10.1590/1678-4766E2017032","url":null,"abstract":"Japanagromyza Sasakawa (Diptera, Agromyzidae) is poorly known from Brazil, with only three species recorded. This contribution increases the knowledge of the genus in Brazil, where two new species are described and illustrations of male and female adults and terminalia are presented. The material was collected in Mato Grosso, Mato Grosso do Sul and Rondonia states and is deposited in the collections of Museu de Zoologia, Universidade de Sao Paulo and Museu Nacional, Universidade do Rio de Janeiro.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75662903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-28DOI: 10.1590/1678-4766E2017022
Emily Ramos Guillín, Violeta Rafael
Se encontraron cuatro especies nuevas en tres localidades en la provincia de Napo, Ecuador. Los individuos fueron colectados en tres altitudes 1 700 m, 2 200 m y 3 362 m. En todos los muestreos se utilizaron trampas fabricadas con botellas de plastico que contenian cebo (pedazos de platano previamente fermentados con levadura). Las especies pertenecen a los grupos Drosophila mesophragmatica ( D. neoamaguana sp. nov. y D . neoyanayuyu sp. nov.), Drosophila canalinea ( D . cosanga sp. nov.) y Drosophila saltans ( D . neoprosaltans sp. nov.); ademas D . guacamayos sp. nov. que por el momento no se encuentra relacionada a ningun grupo de especies del genero Drosophila .
{"title":"Cinco especies nuevas del género Drosophila(Diptera, Drosophilidae) en la provincia de Napo, Ecuador","authors":"Emily Ramos Guillín, Violeta Rafael","doi":"10.1590/1678-4766E2017022","DOIUrl":"https://doi.org/10.1590/1678-4766E2017022","url":null,"abstract":"Se encontraron cuatro especies nuevas en tres localidades en la provincia de Napo, Ecuador. Los individuos fueron colectados en tres altitudes 1 700 m, 2 200 m y 3 362 m. En todos los muestreos se utilizaron trampas fabricadas con botellas de plastico que contenian cebo (pedazos de platano previamente fermentados con levadura). Las especies pertenecen a los grupos Drosophila mesophragmatica ( D. neoamaguana sp. nov. y D . neoyanayuyu sp. nov.), Drosophila canalinea ( D . cosanga sp. nov.) y Drosophila saltans ( D . neoprosaltans sp. nov.); ademas D . guacamayos sp. nov. que por el momento no se encuentra relacionada a ningun grupo de especies del genero Drosophila .","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76375898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-28DOI: 10.1590/1678-4766E2017024
M. Montes, S. Martorelli
Abstract. Jenynsia multidentata Jenyns, 1842 (one-sided livebearers) are euryhaline viviparous fish of small size, used in the laboratory experiment, important as resource for biological control of mosquito’s larva and a key species to recover eutrophic lakes. Works have been published dealing with parasite biodiversity of this host, but little as been study about the parasite community ecology. From early 2009 to ends of 2010 specimens of J. multidentata were collected from two places, the Salado Relief Channel (S.R.C.) on Samborombon Bay and the Sauce Chico River near to the city of Bahia Blanca (B.B.). All fish were sexed, measured and grouped into sizes/age classes. The fishes from both sites harbored 16 parasitic species: nine digenean, one monogenean, one metacestode, one acanthocephalan, two nematode and two copepods . Lecithaster confusus Odhner, 1905, the metacercariae Hemiuridae gen. sp. indet., metacercariae Thylodelphys Diesing, 1850 (inside the eye), Glossocercus sp., Chandler, 1935 nematode L4 (intestine) and de Ergasilus sieboldii Nordmann, 1832 , are new records for the host. The high number of larval stages made of this fish a link between micro and macroecosystems. The size 2 had the higher biodiversity in both sites, which could be the most suitable age to store the maximal number of parasite of the environment and have a more equitability in their distribution on the host. In B.B. some parasites had higher prevalence and mean abundance due to the small size of the waterbody compared with the S.R.C. Despite that, in S.R.C. exist a higher specific richness and biodiversity due the daily flow of saline and freshwater and proximity of the sample site to the mouth of the channel in the bay. This is the first approximation to an analysis of the parasitic ecology on this host.
{"title":"A Bayesian analysis of the parasitic ecology in Jenynsia multidentata (Pisces: Anablepidae)","authors":"M. Montes, S. Martorelli","doi":"10.1590/1678-4766E2017024","DOIUrl":"https://doi.org/10.1590/1678-4766E2017024","url":null,"abstract":"Abstract. Jenynsia multidentata Jenyns, 1842 (one-sided livebearers) are euryhaline viviparous fish of small size, used in the laboratory experiment, important as resource for biological control of mosquito’s larva and a key species to recover eutrophic lakes. Works have been published dealing with parasite biodiversity of this host, but little as been study about the parasite community ecology. From early 2009 to ends of 2010 specimens of J. multidentata were collected from two places, the Salado Relief Channel (S.R.C.) on Samborombon Bay and the Sauce Chico River near to the city of Bahia Blanca (B.B.). All fish were sexed, measured and grouped into sizes/age classes. The fishes from both sites harbored 16 parasitic species: nine digenean, one monogenean, one metacestode, one acanthocephalan, two nematode and two copepods . Lecithaster confusus Odhner, 1905, the metacercariae Hemiuridae gen. sp. indet., metacercariae Thylodelphys Diesing, 1850 (inside the eye), Glossocercus sp., Chandler, 1935 nematode L4 (intestine) and de Ergasilus sieboldii Nordmann, 1832 , are new records for the host. The high number of larval stages made of this fish a link between micro and macroecosystems. The size 2 had the higher biodiversity in both sites, which could be the most suitable age to store the maximal number of parasite of the environment and have a more equitability in their distribution on the host. In B.B. some parasites had higher prevalence and mean abundance due to the small size of the waterbody compared with the S.R.C. Despite that, in S.R.C. exist a higher specific richness and biodiversity due the daily flow of saline and freshwater and proximity of the sample site to the mouth of the channel in the bay. This is the first approximation to an analysis of the parasitic ecology on this host.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/1678-4766E2017024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72411313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-28DOI: 10.1590/1678-4766E2017025
G. Rossi
ABSTRACT. Redescription of larva, pupa and adult of Anopheles ( Anopheles ) annulipalpis (Diptera: Culicidae) and the removal of the specie of the Cycloleppteron Series. The redescription of male, female, pupa and larva of Anopheles ( Anopheles ) annulipalpis Lynch Arribalzaga, 1878 is presented. The species is included in the Cycloleppteron Series of Anopheles, although several authors consider that this is artificial. The redescription of Anopheles annulipalpis demonstrate that pupae have laticorn trumpet. By this fact is compared with An. grabhamii Theobald, 1901 and similar species of the Arribalzagia Series and Myzorhynchus Series. The laticorn type of trumpet joined the other differences and similarities found are sufficient to remove An. annulipalpis of Cycloleppteron Series and included as an unplaced member of the Angusticorn Section.
{"title":"Redescription of larva, pupa and adult of Anopheles (Anopheles) annulipalpis (Diptera: Culicidae) and the removal of the specie of the Cycloleppteron Series","authors":"G. Rossi","doi":"10.1590/1678-4766E2017025","DOIUrl":"https://doi.org/10.1590/1678-4766E2017025","url":null,"abstract":"ABSTRACT. Redescription of larva, pupa and adult of Anopheles ( Anopheles ) annulipalpis (Diptera: Culicidae) and the removal of the specie of the Cycloleppteron Series. The redescription of male, female, pupa and larva of Anopheles ( Anopheles ) annulipalpis Lynch Arribalzaga, 1878 is presented. The species is included in the Cycloleppteron Series of Anopheles, although several authors consider that this is artificial. The redescription of Anopheles annulipalpis demonstrate that pupae have laticorn trumpet. By this fact is compared with An. grabhamii Theobald, 1901 and similar species of the Arribalzagia Series and Myzorhynchus Series. The laticorn type of trumpet joined the other differences and similarities found are sufficient to remove An. annulipalpis of Cycloleppteron Series and included as an unplaced member of the Angusticorn Section.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87094191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-28DOI: 10.1590/1678-4766E2017023
D. P. I. França, M. A. R. Freitas, Werther Pereira Ramalho, Paulo Sérgio Bernarde
Apesar da elevada riqueza de anfibios e repteis conhecida para a porcao Sul-Ocidental da Amazonia brasileira, o conhecimento sobre estes dois grupos ainda e pontual e poucos estudos avaliaram as variacoes temporais na ocorrencia e abundância das especies. Os objetivos deste estudo foram descrever as taxocenoses de anfibios e repteis em uma localidade da reserva extrativista Chico Mendes, verificar quais variaveis climaticas influenciam as flutuacoes temporais na riqueza e abundância e identificar as principais especies de anfibios e repteis que sao influenciadas por estas variaveis. A area de estudo esta localizada na regiao do Seringal Etelvi, porcao sudoeste da Reserva Extrativista Chico Mendes, municipio de Brasileia, estado do Acre. A coleta de dados ocorreu entre outubro de 2011 e setembro de 2012, num total de 48 dias de amostragem com os metodos de procura limitada por tempo e armadilhas de interceptacao e queda. Foram registrados 978 especimes de 31 especies de anfibios e 54 de repteis. Maior riqueza e abundância de anfibios ocorreram durante o periodo chuvoso, ambas correlacionadas positivamente com todas as variaveis selecionadas. Apenas a abundância de repteis foi maior durante o periodo chuvoso, nao havendo correlacao da riqueza e abundância com as variaveis climaticas selecionadas. Tres anfibios ( Rhinella marina (Linnaeus, 1758) , Adenomera hylaedactyla (Cope, 1868) e Allobates femoralis (Boulenger, 1884 “1883”)) e dois repteis ( Kentropyx penviceps Cope, 1868 e Norops fuscoauratus (D’Orbigny, 1837)) tiveram suas abundâncias mensais correlacionadas com variaveis climaticas. Foi possivel verificar o aumento da riqueza e abundância de anfibios e repteis durante periodos em que a disponibilidade de recursos e favoravel para muitas especies. A utilizacao das especies dominantes mostrou que as especies podem responder de formas diferentes as variacoes climaticas, enquanto algumas sao sensiveis as flutuacoes, outras parecem nao responder facilmente ou nao reduzir suas abundâncias em periodos teoricamente desfavoraveis.
{"title":"Diversidade local e influência da sazonalidade sobre taxocenoses de anfíbios e répteis na Reserva Extrativista Chico Mendes, Acre, Brasil","authors":"D. P. I. França, M. A. R. Freitas, Werther Pereira Ramalho, Paulo Sérgio Bernarde","doi":"10.1590/1678-4766E2017023","DOIUrl":"https://doi.org/10.1590/1678-4766E2017023","url":null,"abstract":"Apesar da elevada riqueza de anfibios e repteis conhecida para a porcao Sul-Ocidental da Amazonia brasileira, o conhecimento sobre estes dois grupos ainda e pontual e poucos estudos avaliaram as variacoes temporais na ocorrencia e abundância das especies. Os objetivos deste estudo foram descrever as taxocenoses de anfibios e repteis em uma localidade da reserva extrativista Chico Mendes, verificar quais variaveis climaticas influenciam as flutuacoes temporais na riqueza e abundância e identificar as principais especies de anfibios e repteis que sao influenciadas por estas variaveis. A area de estudo esta localizada na regiao do Seringal Etelvi, porcao sudoeste da Reserva Extrativista Chico Mendes, municipio de Brasileia, estado do Acre. A coleta de dados ocorreu entre outubro de 2011 e setembro de 2012, num total de 48 dias de amostragem com os metodos de procura limitada por tempo e armadilhas de interceptacao e queda. Foram registrados 978 especimes de 31 especies de anfibios e 54 de repteis. Maior riqueza e abundância de anfibios ocorreram durante o periodo chuvoso, ambas correlacionadas positivamente com todas as variaveis selecionadas. Apenas a abundância de repteis foi maior durante o periodo chuvoso, nao havendo correlacao da riqueza e abundância com as variaveis climaticas selecionadas. Tres anfibios ( Rhinella marina (Linnaeus, 1758) , Adenomera hylaedactyla (Cope, 1868) e Allobates femoralis (Boulenger, 1884 “1883”)) e dois repteis ( Kentropyx penviceps Cope, 1868 e Norops fuscoauratus (D’Orbigny, 1837)) tiveram suas abundâncias mensais correlacionadas com variaveis climaticas. Foi possivel verificar o aumento da riqueza e abundância de anfibios e repteis durante periodos em que a disponibilidade de recursos e favoravel para muitas especies. A utilizacao das especies dominantes mostrou que as especies podem responder de formas diferentes as variacoes climaticas, enquanto algumas sao sensiveis as flutuacoes, outras parecem nao responder facilmente ou nao reduzir suas abundâncias em periodos teoricamente desfavoraveis.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72674521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-05-08DOI: 10.1590/1678-4766E2017021
Níthomas M. Feitosa, A. Bonaldo
Uma nova especie de Simlops Bonaldo, Ott and Ruiz, 2014, S . kartabo sp . nov ., da Guiana e descrita. A nova especie pertence ao grupo de especies bodanus, um grupo putativamente basal em Simlops , pois apresenta o terco distal do embolo relativamente simples. Novas descobertas sobre a morfologia do condutor do palpo do macho e suas implicacoes nas relacoes de S. kartabo sp . nov . com outras especies do grupo bodanus sao discutidas.
{"title":"On a new species of the genus Simlops (Araneae, Oonopidae) from Guyana with notes on the bodanus group of species","authors":"Níthomas M. Feitosa, A. Bonaldo","doi":"10.1590/1678-4766E2017021","DOIUrl":"https://doi.org/10.1590/1678-4766E2017021","url":null,"abstract":"Uma nova especie de Simlops Bonaldo, Ott and Ruiz, 2014, S . kartabo sp . nov ., da Guiana e descrita. A nova especie pertence ao grupo de especies bodanus, um grupo putativamente basal em Simlops , pois apresenta o terco distal do embolo relativamente simples. Novas descobertas sobre a morfologia do condutor do palpo do macho e suas implicacoes nas relacoes de S. kartabo sp . nov . com outras especies do grupo bodanus sao discutidas.","PeriodicalId":56300,"journal":{"name":"Iheringia Serie Zoologia","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88337162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-05-08DOI: 10.1590/1678-4766E2017014
F. Zilli, J. D. Barco, Agustín Vanzetti
ABSTRACT. Biometry of neotropical invertebrates inhabiting floodplain rivers: unraveling bionomy . Currently, it is widely recognized that invertebrates play key roles in neotropical floodplains and in many other environments worldwide. However, little information has been published concerning their biometry, in spite that it represents an essential tool for many different studies. Here, we provided length-mass and length-length relationships by fitting the linearized model (log 10 Y = log 10 a + b log 10 X) and several mean biomass ratios ± SE for bivalves, gastropods, quironomids, ephemeropterans, oligochaetes and hirudineans. We measured, weighed, oven dried and incinerated to ashes specimens collected from 2005 to 2014 in the Parana River, Argentina. The lineal equations had fit levels higher than 75% in most of the significant regressions. Hence, when slopes were compared, differences raised from ontogeny and phylogeny of taxa. Additionally, slopes resulted different from constants of other regions, types of environments and climates. In addition, significant differences were obtained in relation to feeding types of invertebrates when organic matter ratios were assessed. The equations and ratios that we provided will facilitate future research on life history, productivity and energy transference in the food webs of invertebrates inhabiting floodplain wetlands and can be used as tools for planning management strategies and in restoration projects of aquatic environments.
摘要居住在洪泛区河流的新热带无脊椎动物的生物计量学:解开生物学。目前，人们普遍认识到无脊椎动物在新热带洪泛平原和世界上许多其他环境中发挥着关键作用。然而，关于它们的生物计量学的信息很少，尽管它代表了许多不同研究的基本工具。本文通过拟合线性化模型(log 10y = log 10a + b log 10x)和双壳类、腹足类、角形类、ephemeropterans、寡毛纲类和水蛭类的平均生物量比±SE，给出了长度-质量和长度-长度关系。我们对2005年至2014年在阿根廷巴拉那河收集的标本进行了测量、称重、烘箱烘干并焚烧成灰烬。在大多数显著回归中，线性方程的拟合水平高于75%。因此，当坡度比较时，差异来自于分类群的个体发育和系统发育。此外，坡度与其他地区、环境类型和气候的常数不同。此外，在评估有机质比率时，无脊椎动物的摄食类型也存在显著差异。我们提供的方程和比率将有助于未来对生活在洪泛平原湿地的无脊椎动物食物网的生活史、生产力和能量转移的研究，并可作为规划管理策略和水生环境恢复项目的工具。
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