IF 0.1 4区生物学

GAYANA Pub Date : 2016-12-01 DOI: 10.4067/S0717-65382016000200181

C. Armijo, R. Mamani

{"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}

引用次数: 1

First record of Homoeographa lanceolella Ragonot (Lepidoptera: Pyralidae: Phycitinae) in Chile 文章标题智利首次记录衣蝗属(鳞翅目:蚜科:蝗科)

IF 0.1 4区生物学

GAYANA Pub Date : 2016-12-01 DOI: 10.4067/S0717-65382016000200201

H. Vargas

引用次数: 1

New record of Cuspidaria patagonica Smith, 1885 (Bivalvia: Cuspidariidae) in northern Chile 智利北部虎虻新记录，1885(双壳亚目:虎虻科)

IF 0.1 4区生物学

GAYANA Pub Date : 2016-12-01 DOI: 10.4067/S0717-65382016000200204

J. Araya, R. Catalán

引用次数: 1

Parásitos del pez luna Mola mola (Pisces: Molidae). Primer registro en aguas de la costa centro sur de Chile 月亮翻车鱼(双鱼座:Molidae)的寄生虫。智利中南部海岸的首次记录

IF 0.1 4区生物学

GAYANA Pub Date : 2016-07-05 DOI: 10.4067/S0717-65382016000200192

Í. Fernández, C. Oyarzún, A. Valenzuela, C. Burgos, Victor Guaquin, Víctor Campos

引用次数: 5

Ampliación del rango de distribución de Acanthistius pictus (Tschudi, 1846) (Serranidae: Osteichthyes) en aguas chilenas 扩大智利水域棘鱼(Tschudi, 1846) (Serranidae: Osteichthyes)的分布范围

IF 0.1 4区生物学

GAYANA Pub Date : 2016-07-05 DOI: 10.4067/S0717-65382016000200198

L. Mansur, Natalio Godoy, Stefan Gelcich, C. Barra, R. Navarro

引用次数: 1

Callyntra inconsiderata sp. nov. (Coleoptera: Tenebrionidae), una nueva especie para la costa de Chile Central Callyntra inconsiderata sp. nov.(鞘翅目:拟步甲科)，智利中部海岸的一新种

IF 0.1 4区生物学

GAYANA Pub Date : 2016-07-05 DOI: 10.4067/S0717-65382016000200175

Álvaro Zúñiga-Reinoso

引用次数: 2

Dimorfismo sexual y morfología funcional de las extremidades de Loxosceles laeta (Nicolet, 1849) Loxosceles laeta肢体的性别二态性和功能形态(Nicolet, 1849)

IF 0.1 4区生物学

GAYANA Pub Date : 2016-07-04 DOI: 10.4067/S0717-65382016000200161

M. Canals, Andrés O. Taucare-Ríos, R. Solís, Lucila Moreno

{"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}

引用次数: 0

Estudio taxonómico de Chilenoperla puerilis (Insecta, Plecoptera), y su asignación a Ericiataperla nueva combinación 幼仔Chilenoperla puerilis(昆虫科，Plecoptera)的分类研究及其与Ericiataperla新组合的分配

IF 0.1 4区生物学

GAYANA Pub Date : 2016-06-01 DOI: 10.4067/S0717-65382016000100010

S. AlejandroVera

引用次数: 1

An edaphological, morphological and climatic classification of freshwater forested wetlands from Chile 智利淡水森林湿地的土壤、形态和气候分类

IF 0.1 4区生物学

GAYANA Pub Date : 2016-06-01 DOI: 10.4067/S0717-65382016000100002

F. Correa-Araneda, Meyer Guevara-Mora, María E. Díaz, R. Figueroa

{"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}

引用次数: 3

Estado de conocimiento y conservación de los anfibios de Chile: una síntesis de los últimos 10 años de investigación 智利两栖动物的知识和保护状况:过去10年研究的综合

IF 0.1 4区生物学

GAYANA Pub Date : 2016-06-01 DOI: 10.4067/S0717-65382016000100011

Claudio Correa, J. P. Donoso, J. Ortiz

{"title":"Estado de conocimiento y conservación de los anfibios de Chile: una síntesis de los últimos 10 años de investigación","authors":"Claudio Correa, J. P. Donoso, J. Ortiz","doi":"10.4067/S0717-65382016000100011","DOIUrl":"https://doi.org/10.4067/S0717-65382016000100011","url":null,"abstract":"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.","PeriodicalId":55128,"journal":{"name":"GAYANA","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0717-65382016000100011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70345689","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}

引用次数: 8

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