163 research outputs found
Cryptic diversity of the jewel beetles Agrilus viridis (Coleoptera: Buprestidae) hosted on hazelnut
The genus Agrilus (Coleoptera: Buprestidae) represents a taxonomic puzzle, since the boundaries between species, subspecies and morphotypes tied to different host plants are sometimes difficult to establish on morphological characteristics alone. Some Agrilus species can cause severe agricultural damage; this makes correct distinctions of the taxon and knowing whether the insects switch from one host plant to another important. This study of mtDNA examined the genetic characteristics of lineages of A. viridis, a jewel beetle recently found causing damage to the hazelnut Corylus avellana in NW Italy. Three mitochondrial markers (a portion of the 12S rDNA and a DNA-fragment including partial NADH dehydrogenase subunit I gene, the tRNA Leucine gene and partial 16S rDNA, and partial Cytochrome c oxidase) were compared between individuals collected on birch Betula sp., beech Fagus sp., willow Salix sp., alder Alnus sp. and hazelnut. We found a high genetic distance between A. viridis sampled on different host plants, while individuals sampled on the same host plant were similar despite a considerable geographic gap between sampled areas. Our study supports the general pattern for strong ecological separation between populations living on different host plants
Nuevas especies de la tribu Agrilini Laporte (Coleoptera: Buprestidae: Agrilinae) de América del Sur
Se describen dos nuevas especies de la tribu Agrilini Laporte: Agrilus (Agrilus) alatus sp. nov. de Perú y Agriloides giganteus sp. nov. de Paraguay
Nuevas especies del género Agrilus Curtis (Coleoptera: Buprestidae: Agrilinae) del Estado de Paraná, Brasil
Se describen dos nuevas especies del género Agrilus Curtis: A. barrosi nov. sp. y A. adamanteus nov. sp
O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae)
A checklist of the Agrilus species from the Museu de Zoologia da Universidade São Paulo is proposed. Eighty-four species are identified, of which fifteen are new and hereby described: A. aegrotus sp. nov., A. anceps sp. nov., A. vanini sp. nov., A. casarii sp. nov., A. crux sp. nov., A. dubiosus sp. nov., A. femina sp. nov., A. fusicauda sp. nov., A. geminus sp. nov., A. giannii sp. nov., A. globulus sp. nov., A. ribeiroi sp. nov., A. timorosus sp. nov., A. martinsi sp. nov., A. yeti sp. nov. Agrilus comizon Obenberger, 1935 is proposed as subspecies of A. chrysostictus Klug, 1825 together with the new state of Agriloides agoretus (Obenberger, 1935) e and Autarcontes posticalis (Gory & Laporte, 1835), both described as Agrilus. Nine new synonymies are proposed: A. fasciatellus Thomson, 1878 (= A. fucatus Obenberger, 1935 syn. nov. = A. laelius Obenberger, 1935 syn. nov. = A. subfasciatellus Obenberger, 1936 syn. nov.); A. lucens Kerremans, 1897 (= A. auriceps Kerremans, 1889 syn. nov. = A. barrandei Obenberger, 1897 syn. nov.); A. violacellus Thomson, 1879 (= A. bathyllus Obenberger, 1933 syn. nov.); A. chrysostictus Klug, 1825 (= A. lucullus Obenberger, 1935 syn. nov. = A. korsakovi Obenberger, 1935 syn. nov.); A. piscis Gory, 1841 (= Agriloides bipunctatus Cobos, 1967 syn. nov.). The list also includes one species of Agriloides Kerremans, 1903 and one of Autarcontes Waterhouse, 1887.É apresentado a lista de espécies do gênero Agrilus, preservadas no Museu de Zoologia da Universidade de São Paulo. Foram identificadas 84 espécies, das quais 15 novas para a ciência, aqui descritas: A. aegrotus sp. nov., A. anceps sp. nov., A. vanini sp. nov., A. casarii sp. nov., A. crux sp. nov., A. dubiosus sp. nov., A. femina sp. nov., A. fusicauda sp. nov., A. geminus sp. nov., A. giannii sp. nov., A. globulus sp. nov., A. ribeiroi sp. nov., A. timorosus sp. nov., A. martinsi sp. nov., A. yeti sp. nov. A. comizon Obenberger, 1935 foi classificado como subespécie de A. chrysostictus Klug, 1825 e vem proposto o novo status de Agriloides agoretus (Obenberger, 1935) e Autarcontes posticalis (Gory & Laporte, 1835) ambos descritos como Agrilus. São propostos 9 sinónimos novos: A. fasciatellus Thomson, 1878 (= A. fucatus Obenberger, 1935 syn. nov. = A. laelius Obenberger, 1935 syn. nov. = A. subfasciatellus Obenberger, 1936 syn. nov.); A. lucens Kerremans, 1897 (= A. auriceps Kerremans, 1889 syn. nov. = A. barrandei Obenberger, 1897 syn. nov.); A. violacellus Thomson, 1879 (= A. bathyllus Obenberger, 1933 syn. nov.); A. chrysostictus Klug, 1825 (= A. lucullus Obenberger, 1935 syn. nov. = A. korsakovi Obenberger, 1935 syn. nov.); A. piscis Gory, 1841 (= Agriloides bipunctatus Cobos, 1967 syn. nov.). Além da lista de Agrilus, foram assinaladas também duas espécies de Agriloides Kerremans, 1903 e um do Autarcontes Waterhouse, 1887
Jewels on the go: exotic buprestids around the world (Coleoptera, Buprestidae)
Buprestidae (Coleoptera: Buprestoidea) is one of the three wood-borer beetle groups of major phytosani-tary interest worldwide, together with Cerambycidae and Scolytinae (Curculionidae). As in other beetle families, some buprestid species have been unintentionally or intentionally introduced around the world, in some cases causing significant environmental and economic damage in the invaded territories. Despite the phytosanitary relevance of the Buprestidae, information regarding the identity of exotic buprestids, their biogeographic areas of origin, introduction pathways, and larval host plants, have remained scattered in the literature. Our objective was to summarize much of the existing knowledge on these topics in the present paper. Our analysis resulted in a list of 115 exotic buprestids worldwide, representing introduc-tions both within and between biogeographic realms and corresponding to less than 1% of the known buprestid species worldwide. Invasiveness does not seem to be linked to their larval host plant preferences, as introduced species utilize 158 plant genera in 70 plant families and are equally represented in all feeding guilds (monophagous, oligophagous, and polyphagous). As trade of plants or plant parts can serve as a pathway for future introductions, the information reported in this review can help in pest risk assessment
Further three new species of Agrilus Curtis, 1825 from Brazil (Coleoptera: Buprestidae).
Following a research carried out in the Parque Estadual do Rio Doce (PERD), in Minas Gerais
(Brazil), we obtained hundreds of specimens of xylophagous Coleoptera belonging mainly to families
Buprestidae, Cerambycidae and Scolytidae, which emerged from Anadenanthera colubrina (Vell.)
Brenan (Fabaceae). Among them, one new species, here described, belonging to the genus Agrilus
Curtis, 1825, has emerged. Herein two other new species collected in the field in another context are
described. This contribution is the third one concerning the knowledge of Agrilinae of PERD
(CURLETTI et al., 2013; CURLETTI & MIGLIORE, 2014)
Efectos del programa de psicomotricidad en el desarrollo de la coordinación motriz de los niños de 5 años de la Institución Educativa Inicial Nº 004 “Niño Jesús de Praga” UGEL 07, 2014
El objetivo del trabajo de investigación fue determinar los Efectos del programa
de psicomotricidad en el desarrollo de la coordinación motriz de los niños de 5
años de la Institución Educativa Inicial Nº 004 “Niño Jesús de Praga “UGEL 07,
2014, mediante el cual se busca el desarrollo motor de los niños y niñas.
Para la caracterización del nivel de conocimiento acerca de Psicomotricidad se
cree conveniente utilizar los métodos de investigación aplicados en este
trabajo: inducción-deducción, análisis síntesis, empírico, encuesta, estadísticomatemático y la estadística descriptiva. Se realizó movimientos comunes
propios de su edad, los niños y niñas que presentan problemas en la
coordinación, equilibrio y lateralidad, lo cual permitió que se desarrollara este
tipo de trabajo. Los investigadores creen que los problemas de coordinación
motriz son causados por la no estimulación a través de Psicomotricidad y la
forma de no llevar un proceso adecuado en las instituciones educativas.
Los resultados obtenidos en el pretest y postest determinaron la diferencia
del desarrollo de la coordinación motriz a favor del grupo experimental en relación
a los niños y niñas del control esto como influencia de la aplicación
de la Psicomotricidad, según la prueba de U-Mann-Whitney: = .50 en los
puntajes obtenidos del pretest. Por otro lado, los puntajes de la coordinación
motriz en el postest del grupo experimental presentan diferencias significativas
con los puntajes obtenidos del grupo control (U-Mann-Whitney: ∗∗∗ = 001
<.05), decidiendo rechazar la hipótesis nula y aceptar la hipótesis alterna en
razón a los cambios apreciados en la conducta motriz de los niños en la cual
resalta la seguridad en sus movimiento
Survey of selected beetle families in a floodplain remnant in northern Italy
Abstract The highly fragmented floodplain forest remnants of the river Po (Italy) are protected at the European level, but surprisingly little is known about their ecology and in particular their invertebrate fauna. The present work investigates 11 selected beetle families sampled in the reserve of Isola Boscone (Lombardy Region, Mantua Province), which is situated inside the embankments of the Po. Twelve window traps were attached to dead trees, either in open and sun-exposed situations (n = 6) or in the understorey of small forest patches (n = 6), and were active from 16 June to 3 November 2009. The following 11 beetle families were studied: Histeridae, Lucanidae, Scarabaeidae, Lissomidae, Elateridae, Buprestidae, Cleridae, Aderidae, Tenebrionidae, Cerambycidae, Anthribidae. A total of 495 individuals belonging to 53 species were collected, including five species of particular faunistic interest. The species Aegosoma scabricorne (Scopoli) and Dissoleucas niveirostris (F.) were associated with the forest habitat, while Chlorophorus varius (Muller), Dorcus parallelipipedus (L.) and Nalassus dryadophilus (Mulsant) were associated with the open habitat. Analyses of the abundance data revealed that the traps from the two habitat types differed in their community composition and that more species were caught in the open habitat. However, individual-based rarefaction curves showed that species richness did not differ when the number of species was plotted in relation to the number of individuals caught. This finding shows that richness estimates need to be interpreted with caution. The study also highlights that monitoring of beetles in floodplain forest remnants is complicated by recurrent floods
Guía de señales de alerta en el desarrollo infantil : guía de orientaciones
En el marco de la implementación del Currículo Nacional de Educación Básica, el Ministerio de Educación del Perú, a través de la Dirección de Educación Inicial, pone al alcance de las y los docentes la guía “Señales de alerta en el desarrollo infantil”, con el propósito de brindar orientaciones sobre la detección oportuna de las manifestaciones significativas en el desarrollo de niñas y niños de 0 a 5 años, a fin de brindarles una atención educativa de acuerdo a sus necesidades y características, y lograr el máximo desarrollo de sus potencialidades. La presente guía está organizada en cuatro capítulos. El primer capítulo, explica el desarrollo infantil, los factores de riesgos que pueden alterarlo y se describe las características del desarrollo de niñas y niños de 0 a 5 años; el segundo capítulo define el concepto de señales de alerta, fundamenta la importancia de la detección de estas y se describe cómo se manifiestan; el tercer capítulo brinda orientaciones para detectarlas de forma oportuna, y el cuarto capítulo ofrece pautas para la derivación de la niña o el niño al establecimiento de salud y/o al PRITE o SAANEE, en el marco del enfoque inclusivo y la atención a la diversidad
Arthropod distribution in a tropical rainforest: tackling a four dimensional puzzle
Quantifying the spatio-temporal distribution of arthropods in tropical rainforests represents
a first step towards scrutinizing the global distribution of biodiversity on Earth. To date moststudies have focused on narrow taxonomic groups or lack a design that allows partitioning
of the components of diversity. Here, we consider an exceptionally large dataset (113,952
individuals representing 5,858 species), obtained from the San Lorenzo forest in Panama,
where the phylogenetic breadth of arthropod taxa was surveyed using 14 protocols targeting
the soil, litter, understory, lower and upper canopy habitats, replicated across seasons
in 2003 and 2004. This dataset is used to explore the relative influence of horizontal, vertical
and seasonal drivers of arthropod distribution in this forest. We considered arthropod abundance,
observed and estimated species richness, additive decomposition of species richness,
multiplicative partitioning of species diversity, variation in species composition,
species turnover and guild structure as components of diversity. At the scale of our study
(2km of distance, 40m in height and 400 days), the effects related to the vertical and seasonal
dimensions were most important. Most adult arthropods were collected from the soil/
litter or the upper canopy and species richness was highest in the canopy. We compared
the distribution of arthropods and trees within our study system. Effects related to the seasonal
dimension were stronger for arthropods than for trees. We conclude that: (1) models
of beta diversity developed for tropical trees are unlikely to be applicable to tropical arthropods;
(2) it is imperative that estimates of global biodiversity derived from mass collecting of
arthropods in tropical rainforests embrace the strong vertical and seasonal partitioning
observed here; and (3) given the high species turnover observed between seasons, global
climate change may have severe consequences for rainforest arthropods
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