Pub Date : 2016-12-01DOI: 10.4067/S0717-65382016000200181
C. Armijo, R. Mamani
Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes was used to investigate the abundance of prokariotic community from the sediments of different sites and along a temporary-space scale from Salar de Lagunilla, a high-altitude athalassohaline wetland in the Chilean Altiplano. Six different taxonomic groups were studied: alpha, beta, gamma proteobacterias, sulfate-reducing of the delta subclass of Proteobacteria, Cytophaga-fl avobacteria and the domain Archaea. The analyses showed the Archaea domain and Cytophaga-fl avobacteria group (33.6 % 20.2 %, respectively) as the dominant group, whereas the groups with minor abundance corresponded to alpha and Beta-proteobacteria (10.7 15.5 %). The prokariotic communities in the sediments also developed differently, as shown by Fluorescence in situ hybridization (FISH) and by nonmetric multidimensional scaling analysis. Changes in prokariotic community composition were followed d uring three years, w here there was a difference in the abundance of the domain Archaea, during the dry season (March-August 2006), which demonstrated the existence of temporary differences, but not space. In addition, Canonical correspondence analysis revealed that the prokaryotic community composition could be infl uenced by some environmental factors, where important components of the ecosystem such as, limestone and carbon, could play a role in the distribution and composition of the prokaryotic community.
采用荧光原位杂交技术(FISH)和rrna靶向寡核苷酸探针，研究了智利Altiplano高海拔亚盐盐湿地Salar de Lagunilla不同地点和临时空间尺度沉积物中原核生物群落的丰度。研究了6个不同的分类类群:α， β， γ变形菌，δ亚类的硫酸盐还原变形菌，Cytophaga-fl avobacteria和域古细菌。结果表明，古菌结构域和Cytophaga-fl avobacteria群(分别为33.6% ~ 20.2%)为优势菌群，α和β -变形菌群(10.15.5%)为低丰度菌群。荧光原位杂交(Fluorescence in situ hybridization, FISH)和非度量多维尺度分析显示，沉积物中原细菌群落的发育也存在差异。在3年的时间里，原生菌群落组成发生了变化，其中，在旱季(2006年3 - 8月)，域古菌的丰度存在差异，这表明存在暂时差异，而不是空间差异。此外，典型对应分析表明，原核生物群落的组成可能受到一些环境因子的影响，其中生态系统的重要组分如石灰岩和碳可能在原核生物群落的分布和组成中发挥作用。
{"title":"Characterization and variability of the prokaryotic community in sediments from Salar de Lagunilla, northern Chile","authors":"C. Armijo, R. Mamani","doi":"10.4067/S0717-65382016000200181","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200181","url":null,"abstract":"Fluorescence in situ hybridization (FISH) with rRNA-targeted oligonucleotide probes was used to investigate the abundance of prokariotic community from the sediments of different sites and along a temporary-space scale from Salar de Lagunilla, a high-altitude athalassohaline wetland in the Chilean Altiplano. Six different taxonomic groups were studied: alpha, beta, gamma proteobacterias, sulfate-reducing of the delta subclass of Proteobacteria, Cytophaga-fl avobacteria and the domain Archaea. The analyses showed the Archaea domain and Cytophaga-fl avobacteria group (33.6 % 20.2 %, respectively) as the dominant group, whereas the groups with minor abundance corresponded to alpha and Beta-proteobacteria (10.7 15.5 %). The prokariotic communities in the sediments also developed differently, as shown by Fluorescence in situ hybridization (FISH) and by nonmetric multidimensional scaling analysis. Changes in prokariotic community composition were followed d uring three years, w here there was a difference in the abundance of the domain Archaea, during the dry season (March-August 2006), which demonstrated the existence of temporary differences, but not space. In addition, Canonical correspondence analysis revealed that the prokaryotic community composition could be infl uenced by some environmental factors, where important components of the ecosystem such as, limestone and carbon, could play a role in the distribution and composition of the prokaryotic community.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0717-65382016000200181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346122","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 : 2016-12-01DOI: 10.4067/S0717-65382016000200201
H. Vargas
{"title":"First record of Homoeographa lanceolella Ragonot (Lepidoptera: Pyralidae: Phycitinae) in Chile","authors":"H. Vargas","doi":"10.4067/S0717-65382016000200201","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200201","url":null,"abstract":"","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346660","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 : 2016-12-01DOI: 10.4067/S0717-65382016000200204
J. Araya, R. Catalán
Deep water mollusks have been sparsely studied in Chile and, apart from some classic works (e. g. Smith 1885; Dall 1889, 1890, among others) and studies done mostly in central-southern Chile (Sellanes & Krylova 2005, Holmes et al. 2006, Fraussen & Sellanes 2008, among others), only a few recent works have reviewed species from the northern areas of the country (Bernard 1988, Guzmán et al. 1998, Véliz & Vásquez 2000, Pacheco & Laudien 2008, Araya 2013). Among the deep-water bivalves, genus Cuspidaria Nardo, 1840 encompasses several small species with nearly equivalve but markedly inequilateral smooth shells, with the posterior end rostrate to spoutlike and a hinge with one posterior lateral tooth (Keen 1971). This genus is represented in Chile by three species, all of them found in deep waters: Cuspidaria infelix Thiele, 1912 and Cuspidaria tenella Smith, 1907, both species found in Antarctic waters and in southern Patagonia (C. infelix) and Cuspidaria patagonica (Smith, 1885), which has been previously recorded in the Strait of Magellan (Smith 1885, Valdovinos 1999).
{"title":"New record of Cuspidaria patagonica Smith, 1885 (Bivalvia: Cuspidariidae) in northern Chile","authors":"J. Araya, R. Catalán","doi":"10.4067/S0717-65382016000200204","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200204","url":null,"abstract":"Deep water mollusks have been sparsely studied in Chile and, apart from some classic works (e. g. Smith 1885; Dall 1889, 1890, among others) and studies done mostly in central-southern Chile (Sellanes & Krylova 2005, Holmes et al. 2006, Fraussen & Sellanes 2008, among others), only a few recent works have reviewed species from the northern areas of the country (Bernard 1988, Guzmán et al. 1998, Véliz & Vásquez 2000, Pacheco & Laudien 2008, Araya 2013). Among the deep-water bivalves, genus Cuspidaria Nardo, 1840 encompasses several small species with nearly equivalve but markedly inequilateral smooth shells, with the posterior end rostrate to spoutlike and a hinge with one posterior lateral tooth (Keen 1971). This genus is represented in Chile by three species, all of them found in deep waters: Cuspidaria infelix Thiele, 1912 and Cuspidaria tenella Smith, 1907, both species found in Antarctic waters and in southern Patagonia (C. infelix) and Cuspidaria patagonica (Smith, 1885), which has been previously recorded in the Strait of Magellan (Smith 1885, Valdovinos 1999).","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346736","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 : 2016-07-05DOI: 10.4067/S0717-65382016000200192
Í. Fernández, C. Oyarzún, A. Valenzuela, C. Burgos, Victor Guaquin, Víctor Campos
In this study, we report parasitological findings in one Mola mola specimen examined and collected as by catch-off Tome, south central Chile, during october 2014. Adult stages of digeneans, Accacladium serpentulum and Accacladocoelium macrocotyle, cestode Anchistrocephalus microcephalus, and copepod Cecrops latreillii were isolated. Besides, at the larval stage, the third larval stage (L3) of nematode Anisakis sp. Type I, sensu Berland, 1961, and plerocerci larvae of cestode Molicola horridus were also observed. The results demonstrated the participation of M. mola as a definitive and intermediate or paratenic host in the life cycles of different parasites identified in the present study.
{"title":"Parásitos del pez luna Mola mola (Pisces: Molidae). Primer registro en aguas de la costa centro sur de Chile","authors":"Í. Fernández, C. Oyarzún, A. Valenzuela, C. Burgos, Victor Guaquin, Víctor Campos","doi":"10.4067/S0717-65382016000200192","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200192","url":null,"abstract":"In this study, we report parasitological findings in one Mola mola specimen examined and collected as by catch-off Tome, south central Chile, during october 2014. Adult stages of digeneans, Accacladium serpentulum and Accacladocoelium macrocotyle, cestode Anchistrocephalus microcephalus, and copepod Cecrops latreillii were isolated. Besides, at the larval stage, the third larval stage (L3) of nematode Anisakis sp. Type I, sensu Berland, 1961, and plerocerci larvae of cestode Molicola horridus were also observed. The results demonstrated the participation of M. mola as a definitive and intermediate or paratenic host in the life cycles of different parasites identified in the present study.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0717-65382016000200192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346222","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 : 2016-07-05DOI: 10.4067/S0717-65382016000200198
L. Mansur, Natalio Godoy, Stefan Gelcich, C. Barra, R. Navarro
Acanthistius (Anthiinae) is distributed in the Indo West Pacifi c, Southeast Pacifi c and South Atlantic Ocean. The genus is constituted by 13 species, of which only Acanthistius pictus (Tschudi 1846) is recorded in Chile. A. pictus is an endemic serranid of the Eastern Pacifi c coast distributed from southern Perú (16°S) to north of Chile (26°S) (Pequeño et al. 2011). A. pictus is a rocky reef fi sh of shallow waters (5-30 m), that lives associated to caves and Lessonia trabeculata kelp forests (Cisternas & Sielfeld 2008). It is a carnivorous species that feeds mainly on crustaceans (Medina et al. 2004). It is also an economically important species which supports small-scale artisanal fi shing activities in the north of Chile (Godoy 2013).
刺蝉属(蚁科)分布于印度洋、西太平洋、东南太平洋和南大西洋。该属由13种组成，其中智利仅有Acanthistius pictus (Tschudi 1846)记录。pictus是东太平洋海岸的一种特有的serrand，分布于Perú南部(16°S)至智利北部(26°S) (Pequeño et al. 2011)。a . pictus是一种浅水区(5-30米)的礁石鱼，生活在洞穴和小叶藻森林附近(Cisternas & Sielfeld 2008)。它是一种主要以甲壳类动物为食的肉食性物种(Medina et al. 2004)。它也是一种重要的经济物种，支持智利北部的小规模手工捕鱼活动(Godoy 2013)。
{"title":"Ampliación del rango de distribución de Acanthistius pictus (Tschudi, 1846) (Serranidae: Osteichthyes) en aguas chilenas","authors":"L. Mansur, Natalio Godoy, Stefan Gelcich, C. Barra, R. Navarro","doi":"10.4067/S0717-65382016000200198","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200198","url":null,"abstract":"Acanthistius (Anthiinae) is distributed in the Indo West Pacifi c, Southeast Pacifi c and South Atlantic Ocean. The genus is constituted by 13 species, of which only Acanthistius pictus (Tschudi 1846) is recorded in Chile. A. pictus is an endemic serranid of the Eastern Pacifi c coast distributed from southern Perú (16°S) to north of Chile (26°S) (Pequeño et al. 2011). A. pictus is a rocky reef fi sh of shallow waters (5-30 m), that lives associated to caves and Lessonia trabeculata kelp forests (Cisternas & Sielfeld 2008). It is a carnivorous species that feeds mainly on crustaceans (Medina et al. 2004). It is also an economically important species which supports small-scale artisanal fi shing activities in the north of Chile (Godoy 2013).","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346636","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 : 2016-07-05DOI: 10.4067/S0717-65382016000200175
Álvaro Zúñiga-Reinoso
Callyntra Solier, 1836, an endemic genus of Chile and Argentina, contains 21 valid species. Through field sampling and review of material from the coast of the Regions V and VI, we find specimens assigned to C. laticollis morphologically differentiated from the assigned species. Also, their morphology differ from all other nominal species of the genus. Therefore, in this article we describe C. inconsiderata sp. nov. and discuss regarding the relationship with other species of Callyntra, morphological variability, sexual dimorphism and conservation.
{"title":"Callyntra inconsiderata sp. nov. (Coleoptera: Tenebrionidae), una nueva especie para la costa de Chile Central","authors":"Álvaro Zúñiga-Reinoso","doi":"10.4067/S0717-65382016000200175","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200175","url":null,"abstract":"Callyntra Solier, 1836, an endemic genus of Chile and Argentina, contains 21 valid species. Through field sampling and review of material from the coast of the Regions V and VI, we find specimens assigned to C. laticollis morphologically differentiated from the assigned species. Also, their morphology differ from all other nominal species of the genus. Therefore, in this article we describe C. inconsiderata sp. nov. and discuss regarding the relationship with other species of Callyntra, morphological variability, sexual dimorphism and conservation.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0717-65382016000200175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346061","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 : 2016-07-04DOI: 10.4067/S0717-65382016000200161
M. Canals, Andrés O. Taucare-Ríos, R. Solís, Lucila Moreno
Alometric relationships among morphological characters provide evidence of the evolutionary forces that act on a particular trait. Spiders that live on the ground are less dimorphic than orb web spiders, which have been attributed to their different reproductive and foraging strategies. It has been proposed that long legs with respecto to the body size in males, yields an optimization of locomotion costs. The aim of this study was to characterize the variability of the length of legs in the Chilean recluse spider Loxosceles laeta and to compare the alometric relationships of the locomotor legs in males and females. Both sexes showed negative alometric relationships between the length of the legs and the lengtgh of the cephalotorax, ie spiders of large body size have proportionally shorter legs than that of small body size, which may be explained by bio mechanic causes. The males showed longer legs than females both in absolute and relative terms. That means that males have a higher locomotor efficiency than females. The relative small body size is related to a low transportation cost, which associated with long legs is the expected morphology for the more active and mobile males in this species.
{"title":"Dimorfismo sexual y morfología funcional de las extremidades de Loxosceles laeta (Nicolet, 1849)","authors":"M. Canals, Andrés O. Taucare-Ríos, R. Solís, Lucila Moreno","doi":"10.4067/S0717-65382016000200161","DOIUrl":"https://doi.org/10.4067/S0717-65382016000200161","url":null,"abstract":"Alometric relationships among morphological characters provide evidence of the evolutionary forces that act on a particular trait. Spiders that live on the ground are less dimorphic than orb web spiders, which have been attributed to their different reproductive and foraging strategies. It has been proposed that long legs with respecto to the body size in males, yields an optimization of locomotion costs. The aim of this study was to characterize the variability of the length of legs in the Chilean recluse spider Loxosceles laeta and to compare the alometric relationships of the locomotor legs in males and females. Both sexes showed negative alometric relationships between the length of the legs and the lengtgh of the cephalotorax, ie spiders of large body size have proportionally shorter legs than that of small body size, which may be explained by bio mechanic causes. The males showed longer legs than females both in absolute and relative terms. That means that males have a higher locomotor efficiency than females. The relative small body size is related to a low transportation cost, which associated with long legs is the expected morphology for the more active and mobile males in this species.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346416","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 : 2016-06-01DOI: 10.4067/S0717-65382016000100010
S. AlejandroVera
Se realiza un estudio taxonomico de C. puerilis. Se redescribe la ninfa y describen los adultos de ambos sexos. Se identifican 17 rasgos en oposicion con las restantes especies de Chilenoperla seis en adultos y once en ninfas. Estos resultados apoyan una nueva combinacion nomenclatural para la especie dentro de un nuevo genero nombrado Ericiataperla. El caso estudiado muestra la relevancia de asociar correctamente los estados de desarrollo en insectos acuaticos, para asi asignarles atributos ecologicos y estimar la diversidad de los taxa involucrados.
{"title":"Estudio taxonómico de Chilenoperla puerilis (Insecta, Plecoptera), y su asignación a Ericiataperla nueva combinación","authors":"S. AlejandroVera","doi":"10.4067/S0717-65382016000100010","DOIUrl":"https://doi.org/10.4067/S0717-65382016000100010","url":null,"abstract":"Se realiza un estudio taxonomico de C. puerilis. Se redescribe la ninfa y describen los adultos de ambos sexos. Se identifican 17 rasgos en oposicion con las restantes especies de Chilenoperla seis en adultos y once en ninfas. Estos resultados apoyan una nueva combinacion nomenclatural para la especie dentro de un nuevo genero nombrado Ericiataperla. El caso estudiado muestra la relevancia de asociar correctamente los estados de desarrollo en insectos acuaticos, para asi asignarles atributos ecologicos y estimar la diversidad de los taxa involucrados.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70345601","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 : 2016-06-01DOI: 10.4067/S0717-65382016000100002
F. Correa-Araneda, Meyer Guevara-Mora, María E. Díaz, R. Figueroa
Humedales del mismo tipo pueden presentar diferencias considerables en relacion a una serie de variables ambientales que influyen en las propiedades fisicoquimicas y a su vez en las comunidades biologicas que sustentan. Sin embargo, en estudios comparativos, esta variabilidad natural es generalmente poco considerada. El objetivo de este trabajo fue realizar una primera aproximacion de una clasificacion edafologica, morfologica y climatica de los humedales boscosos de la zona central de Chile, ecosistemas unicos para la conservacion de una interesante diversidad de flora y fauna. Se clasificaron 18 humedales presentes en la region de la Araucania, mediante el procedimiento de clasificacion B de la Directiva Marco del Agua de la Union Europea, utilizando 21 variables a escala de cuenca. Se obtuvieron cuatro ecotipos, caracterizados principalmente por el microclima y tipo de suelo, aunque tambien fueron relevantes variables morfologicas, como la pendiente y la superficie de sus cuencas (Lambda de Wilks 3,84). Los ecotipos determinados estuvieron definidos por: 1) Convergencia de climas marino fresco, calido y mediterraneo frio, con suelo franco arcillo limoso y pendientes altas, 2) Clima marino fresco con suelo franco limoso y pendientes altas, 3) Clima mediterraneo frio con suelo franco limosos y pendientes bajas y 4) Clima marino fresco, suelo franco arcillo limoso y pendiente alta. La clasificacion debe ser posteriormente validada mediante observaciones in situ de variables limnologicas y biologicas.
{"title":"An edaphological, morphological and climatic classification of freshwater forested wetlands from Chile","authors":"F. Correa-Araneda, Meyer Guevara-Mora, María E. Díaz, R. Figueroa","doi":"10.4067/S0717-65382016000100002","DOIUrl":"https://doi.org/10.4067/S0717-65382016000100002","url":null,"abstract":"Humedales del mismo tipo pueden presentar diferencias considerables en relacion a una serie de variables ambientales que influyen en las propiedades fisicoquimicas y a su vez en las comunidades biologicas que sustentan. Sin embargo, en estudios comparativos, esta variabilidad natural es generalmente poco considerada. El objetivo de este trabajo fue realizar una primera aproximacion de una clasificacion edafologica, morfologica y climatica de los humedales boscosos de la zona central de Chile, ecosistemas unicos para la conservacion de una interesante diversidad de flora y fauna. Se clasificaron 18 humedales presentes en la region de la Araucania, mediante el procedimiento de clasificacion B de la Directiva Marco del Agua de la Union Europea, utilizando 21 variables a escala de cuenca. Se obtuvieron cuatro ecotipos, caracterizados principalmente por el microclima y tipo de suelo, aunque tambien fueron relevantes variables morfologicas, como la pendiente y la superficie de sus cuencas (Lambda de Wilks 3,84). Los ecotipos determinados estuvieron definidos por: 1) Convergencia de climas marino fresco, calido y mediterraneo frio, con suelo franco arcillo limoso y pendientes altas, 2) Clima marino fresco con suelo franco limoso y pendientes altas, 3) Clima mediterraneo frio con suelo franco limosos y pendientes bajas y 4) Clima marino fresco, suelo franco arcillo limoso y pendiente alta. La clasificacion debe ser posteriormente validada mediante observaciones in situ de variables limnologicas y biologicas.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70345783","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 : 2016-06-01DOI: 10.4067/S0717-65382016000100011
Claudio Correa, J. P. Donoso, J. Ortiz
Han transcurrido diez anos desde que se publico la ultima sintesis general del estado de conocimiento de los anfibios de Chile. Durante este periodo se han realizado numerosos aportes al conocimiento de estos organismos e implementado acciones enfocadas a su conservacion. El objetivo de este trabajo es describir los avances realizados en distintas areas cientificas y en el campo de la conservacion de los anfibios de Chile durante los ultimos diez anos, para obtener una vision actualizada de su estado de conocimiento y conservacion e identificar algunas areas que requeririan un mayor esfuerzo de investigacion. La actualizacion se baso en 155 trabajos publicados entre 2006 y 2015, que incluyen articulos cientificos de revistas ISI y no ISI, libros, capitulos de libros y guias de campo. Estas publicaciones fueron clasificadas por ano y por area cientifica para examinar la tendencia temporal en el numero de publicaciones e identificar en que areas se ha concentrado la labor cientifica. Las areas en que se realizo la mayoria de las investigaciones durante esta ultima decada fueron conservacion, distribucion geografica y biogeografia, etologia, taxonomia, y genetica y filogeografia. Entre estas, la conservacion se ha consolidado como una disciplina de interes cientifico y se ha beneficiado de acciones concretas como programas de crianza ex situ e in situ, la propuesta de un Plan Nacional de Conservacion de Anfibios, y la evaluacion de los estados de conservacion realizada a traves del Reglamento de Clasificacion de Especies. Finalmente, se sugieren algunas tematicas que requeririan mayor atencion por parte los investigadores en las areas de la taxonomia, sistematica, biogeografia, biologia y conservacion.
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