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Registros recuperados: 7
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ACALODEGMA VIDALI, NUEVA ESPECIE ALTOANDINA DE PRIONINAE (COLEOPTERA: CERAMBYCIDAE) DE CHILE Gayana
Elgueta,Mario; Cerda,Miguel.
RESUMEN Se describe una nueva especie de Macrodontini de Chile: Acalodegma vidali n. sp. Se ubica en el género Acalodegma, decisión que involucra un sentido ampliado a aquel conjunto de caracteres establecidos originalmente para el género. La nueva entidad específica tiene hasta el momento una distribución exclusiva en la Cordillera de los Andes alrededor de los 27º 36' S y 69º 20' O, área que corresponde a un ambiente de tipo prepuneño; dada esta distribución es altamente probable que se presente en similares ambientes del noroeste de Argentina. A fin de entender esta repartición en un contexto biogeográfico, se entregan antecedentes biológicos generales y de distribución geográfica para las especies de Prioninae reportadas para Chile
Tipo: Journal article Palavras-chave: Prioninae; Macrodontini; Acalodegma; Distribución; Hábitat; Chile; Argentina.
Ano: 2002 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382002000100003
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Demographic study of two population outbreaks of Elasmoderus wagenknechti (Liebermann) (Orthoptera: Tristiridae) in the transitional desert of Chile Neotropical Entomology
Cepeda-Pizarro,Jorge; Vega,Solange; Vásquez,Hernán; Elgueta,Mario; Pizarro-Araya,Jaime.
Under certain environmental conditions, several species of grasshoppers inhabiting rangeland areas (e.g., inter-valleys) of the Chilean transitional desert can irrupt demographically. One of them is Elasmoderus wagenknechti (Liebermann), an endemic species. We studied two outbreaks occurred in 1996 and 1999. The objectives of the research were to (i) estimate some demographic parameters associated with the aforementioned events, and (ii) compare between them the population parameters. The parameters we studied were density (ind/m²), sexual proportion, female fertility (i.e., eggs/female), and the relationship eggs/female versus female size. Density (ind/m²) ranged from 0.2 to 0.4 in 1996 and from 0.5 to 0.6 in 1999. ANOVA-tests registered differences in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rangeland insect; Population biology; Semi-arid zone; Endemic insect; Grassland ecology.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000400002
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Diversity and distribution of the Aegorhinus genus in the La Araucanía Region of Chile, with special reference to A. superciliosus and A.nodipennis Ciencia e Investigación Agraria
Zavala,Andrea; Elgueta,Mario; Abarzúa,Juan; Aguilera,Alfonso; Quiroz,Andrés; Rebolledo,Ramón.
The Araucanía region is a berry producing area where important behavioral aspects of species in the genus Aegorhinus, a pest that affects crops, are still unknown. The objectives of this study were to determine the distribution, abundance and richness of these species in agroecological zones of La Araucanía Region and to determine the hosts in which they were found. The sites where these species were found were represented on a map divided into grids of 25 x 25 km. Eight species of Aegorhinus were found in the area, and Aegorhinus nodipennis and Aegorhinus superciliosus were the most abundant. The diversity was analyzed using the Shannon-Wiener index, and the equitability was determined using the Pielou index. The agroecological zone with the greatest...
Tipo: Journal article Palavras-chave: Aegorhinus; Agroecological zones; Coleoptera; Hosts.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000300006
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Morphometric and molecular differences among Calvertius tuberosus (Coleoptera: Curculionidae) populations associated with Andean and coastal populations of Araucaria araucana in the La Araucanía Region, Chile Rev. Bras. entomol.
Jimenez,Luis Huala; Ranz,Ramón Rebolledo; López,Rubén Carrillo; Elgueta,Mario; Honorato,Marco Paredes.
Abstract Calvertius tuberosus (Curculionidae) lives exclusively on Araucaria araucana trees (commonly known as pehuen) in southern Chile. In this study, morphometric and molecular genetic analyses of Andean and coastal populations of C. tuberosus were performed to evaluate evolutionary divergence associated with the discontinuity of the Araucaria forest between the coastal and Andean regions. Specimens of C. tuberosus were collected in Nahuelbuta National Park, Villa Las Araucarias, and Malalcahuello National Reserve and were classified and stored at the Animal Biotechnology Researching Laboratory (LINBA), University of La Frontera, Temuco, Chile. Thirteen morphometric parameters and the expression patterns of ISSR (inter-simple sequence repeat) markers...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forests; ISSR markers; Morphometry.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000200119
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New host-plant records for the defoliator Ormiscodes amphimone (Fabricius) (Lepidoptera: Saturniidae) Neotropical Entomology
Paritsis,Juan; Elgueta,Mario; Quintero,Carolina; Veblen,Thomas T.
Ormiscodes amphimone (Fabricius) is a phytophagous moth species known to severely defoliate woody species in Chile and Argentina. Here we document new records of O. amphimonehost associations emphasizing the role of Nothofagus pumilio as its primary host in our study area. This new record for Argentina is highly significant given the economic importance of N. pumilio as a timber resource and the potential of O. amphimone to generate extensive outbreaks.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defoliation; Hemileucinae; Herbivory; Insect outbreak; Nothofagus pumilio; Patagonia.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600032
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Nuevo hospedador de Huequenia livida (Coleoptera: Cerambycidae) en Argentina Rev. Soc. Entomol. Argent.
Villacide,José María; Sackmann,Paula; Elgueta,Mario.
La presencia de adultos de Huequenia livida (Germain, 1898) (Cerambycidae) fue detectada en una plantación de Pinus contorta Douglas ex Loudon var. murrayana (Balf.) Engelm. en la localidad de Lago Puelo (Chubut, Argentina). Este es el primer registro del desarrollo de H. livida en una especie hospedadora distinta de Araucaria spp. Esta contribución agrega una nueva especie y una nueva familia al listado de plantas hospedadoras descriptas para este Cerambycidae en Chile.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Huequenia livida; Patagonia; Argentina; Sirex noctilio; Pinus spp..
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802006000100014
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ZELUS CERVICALIS STÅL (HEMIPTERA: REDUVIIDAE: HARPACTORINAE), APORTE NEARTICO A LA ENTOMOFAUNA INTRODUCIDA EN CHILE Gayana
Elgueta,Mario; Carpintero,Diego L..
Se da a conocer el establecimiento en Chile de Zelus cervicalis Stål, 1872, cuya introducción reciente en el país se asocia al tráfico comercial. Se entrega una breve caracterización, sinonimia, referencias bibliográficas, distribución geográfica conocida y una figura del adulto
Tipo: Journal article Palavras-chave: Reduviidae; Zelus; Introducción; Chile central.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000100010
Registros recuperados: 7
Primeira ... 1 ... Última
 

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