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| Tovar-Sánchez,Efraín; Valencia-Cuevas,Leticia; Mussali-Galante,Patricia; Ramírez-Rodríguez,Rolando; Castillo-Mendoza,Elgar. |
| BACKGROUND: Recently it has been proposed that the genetic diversity of foundation species influences the structure and function of the community by creating locally stable conditions for other species and modulating ecosystem dynamics. Oak species are an ideal system to test this hypothesis because many of them have a wide geographical distribution, and they are dominant elements of the forest canopy. In this study we explored the response of canopy arthropod community structure (diversity and biomass) to the level of genetic diversity of Quercus crassipes and Q. rugosa, two important canopy species. Also, we examined the effect of oak species and locality on some community structure parameters (diversity, biomass, rare species, and richness of arthropod... |
| Tipo: Journal article |
Palavras-chave: Arthropods community; Canopy; Foundation species; Genetic diversity; Quercus. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100012 |
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| Tovar-Sánchez,Efraín; Martí-Flores,Erwin; Valencia-Cuevas,Leticia; Mussali-Galante,Patricia. |
| BACKGROUND: Quercus crassifolia is an oak species with characteristics of foundation species, which is a canopy dominant element of different forest types that supports a wide diversity of associated species. Therefore, it is an excellent system to address important ecological questions. We analyzed the effect of individual genetic relatedness of the host plant, forest type (Abies-Quercus, Quercus-Pinus, and Quercus forest), and season (dry vs. rainy) on the canopy arthropod community structure. Thirty oak canopies were fogged (five individuals/season/forest type). RESULTS: We identified 442 arthropod species belonging to 22 orders. The highest values of density, diversity, and richness were recorded during the rainy season for each forest type. Also, the... |
| Tipo: Journal article |
Palavras-chave: Quercus; Foundation species; Individual genetic diversity; Microsatellites; Forest type; Arthropods community. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100007 |
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| Diaz-Fleischer,Francisco; Hernandez-Arellano,Verónica; Sanchez-Velásquez,Lázaro; Cano-Medina,Tomás; Cervantes-Alday,Raquel; López-Ortega,Maurilio. |
| Las bellotas de los encinos (Quercus spp.) son atacadas en etapa de predispersión por varias especies de insectos. A pesar de la importancia de los encinos en programas de reforestación, el impacto del ataque de estos insectos, depredadores de semillas sobre la germinación de las bellotas es poco conocido, muy variable y depende de la especie de encino. En este estudio se determinó el nivel de infestación, por insectos, en bellotas de Quercus candicans Née y su efecto en la germinación. Para ello se realizaron muestreos en campo usando trampas pata recolectar bellotas y recolectas directas del suelo. Los niveles de infestación oscilaron de 7 a 21.6 %. Las bellotas atacadas por insectos presentaron una reducción en la germinación de 77.7 a 90.7 %. Las... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quercus; Bellotas; Insectos plaga; Infestación; Germinación; Reforestación. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000100008 |
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| Valencia-Cuevas,Leticia; Tovar-Sánchez,Efraín. |
| Canopy of forest ecosystems has been recognized as a habitat that supports a wide variety of plants, vertebrates, invertebrates, and microbes. Within the invertebrate group, arthropods are characterized by their great abundance, diversity, and functional importance. Particularly in temperate forests, species of the genus Quercus (oaks) are one of the most important tree canopy groups, for its diversity and dominance. Different studies have shown that the oak canopy contains a high diversity of arthropods suggesting their importance as habitat for this group of organisms. In this review, we investigated the factors that determine the establishment, organization, and maintenance of arthropod communities in the oak canopy. In general, it was found that there... |
| Tipo: Journal article |
Palavras-chave: Quercus; Temperate forests; Species diversity; Conservation. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100015 |
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