Results 51 to 60 of about 6,005,072 (242)

Species diversity and host plant associations of ambrosia beetles in Southeast Asian forests of Laos and Vietnam revealed by DNA barcoding

open access: yesInsect Conservation and Diversity, EarlyView.
Integrative DNA barcoding of ambrosia beetles and host plants revealed 27 beetle species across 16 genera and extensive, previously undocumented host plant diversity in Laos and Vietnam. Host specificity varied widely among ambrosia beetles, with Xylosandrus crassiusculus emerging as a dominant generalist associated with 19 host species from 12 plant ...
Bounsanong Chouangthavy   +10 more
wiley   +1 more source

Características de la Araucanización al oriente de los Andes

open access: yesCultura-Hombre-Sociedad
Mapuche- Su etimlogía es muy conocida (araucano mapú "tierra"y che "gente", "gente de lo tierra"). Propongo que se lo utilice estrictamente con su sentido originario, es decir, para denominar al pueblo que pobló y puebla lo Araucanía propiamente dicha ...
Rodolfo Casamiquela
doaj   +3 more sources

EFL Learners’ Receptive Vocabulary Size and the Common European Framework of Reference for Languages: Estimates Across Levels

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT The Common European Framework of Reference for languages (CEFR) is widely used as a reference for language teaching and learning. However, providing vocabulary size (VS) estimates is beyond the CEFR's original aim. Previous research has also shown that learners’ receptive VS is related to overall proficiency and to the four language skills ...
Ferran Gesa
wiley   +1 more source

Crustal structure under the central and eastern part of the Betic Cordillera [PDF]

open access: yesGeophysical Journal International, 1980
Summary. In 1974 and 1975 a network of crustal seismic refraction profiles across the Betic Cordillera was established with shotpoints at sea off the Spanish coast. The longest profile with a length of 440 km runs parallel to the general strike through the centre of the Betic Cordillera.
E. Banda, J. Ansorge
openaire   +1 more source

Description and terrestrial ages of the Calama Area Meteorite Collection (Atacama Desert, Chile)

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We present a comprehensive study of a meteorite collection from the Atacama Desert (Chile), the driest and most climatically stable desert in the world. This collection includes meteorites from three adjacent Dense Collection Areas (DCAs) in the northern part of the Atacama Desert: Calama, Sierra Gorda, and Chug Chug, referred to as the ...
Carine Sadaka   +9 more
wiley   +1 more source

Avifauna en dos complejos de páramo de Antioquia, Colombia

open access: yesBiota Colombiana, 2019
Hicimos caracterizaciones rápidas de avifauna en dos complejos de páramo (Frontino-Urrao y Sonsón) en el departamento de Antioquia, Colombia, en el límite superior de bosques nublados, zonas de transición y páramos.
Sergio Chaparro-Herrera   +6 more
doaj   +3 more sources

Bromelias de Colombia: una especie nueva de Pitcairnia

open access: yesCaldasia, 1995
A new species of Pitcairnia (Bromeliaceae) is described, ilustrated and discussed. This species is found in the Cordillera Central of Colombia, departamento de Antioquia, in a relictual humid mountain forestSe describe, ilustra y discute una nueva ...
Betancur Betancur Julio Cesar
doaj  

Floral adaptation and modular trait evolution associated with a shift from bee to hummingbird pollination

open access: yesPlant Biology, EarlyView.
By comparing floral trait variation, integration and modularity in two sister species of Neotropical Costus with a pollination shift, we show that, despite pollination syndrome divergence, both species exhibit low floral variation and functional modularity, consistent with pollinator‐driven selection on traits mediating pollen transfer efficiency and ...
P. Juárez, K. M. Kay
wiley   +1 more source

Una nueva especie de Eleutherodactylus (Amphibia: Leptodactylidae) de la Cordillera Central de Colombia Una nueva especie de Eleutherodactylus (Amphibia: Leptodactylidae) de la Cordillera Central de Colombia

open access: yesCaldasia, 1991
A new species of Eleutherodactylus, unistrigatus Group from the Cordillera Central in central Colombia is named. Additional characters of cranial morphology for defining the unistrigatus Group are given.
Roa Trujillo Sonia H.   +1 more
doaj  

Neotropical Snakes Reveal Different Geological Times for Dispersal Corridors Between Amazon and Atlantic Forests

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Three forested dispersal corridors have been proposed within the diagonal of open/dry landscapes in South America and the relative importance of each one has been the subject of debate for forest organisms. We analysed the biogeographical history of three snake genera (Bothrops, Philodryas, and Micrurus) from different families (Viperidae ...
Matheus Pontes‐Nogueira   +2 more
wiley   +1 more source

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