Results 111 to 120 of about 52,554 (252)

Medidas del solapamiento en tres bases de datos con información sobre ingeniería.

open access: yesAnales de Documentación, 2008
El contenido de las bases de datos suele variar tanto en diversidad temática como en extensión; unas cubren información específica, mientras que otras son multidisciplinares.
Antonio Pulgarín Guerrero   +1 more
doaj  

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

open access: yesIbis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde   +3 more
wiley   +1 more source

Seasonal shifts in network structure and species roles in a tropical island plant–flower visitor community Cambios estacionales en la estructura de la red de interacciones entre plantas y visitantes florales y en los roles de las especies en una comunidad insular tropical

open access: yesInsect Conservation and Diversity, EarlyView.
Constant visitation rates across the flowering season masked major shifts in plant and flower visitor interaction structure, specialization, species roles and trait‐driven patterns shaping interaction intensity. Plants and flower visitors changed ecological roles over time, with native flower visitors playing key roles in maintaining network cohesion ...
Alba Costa   +3 more
wiley   +1 more source

Task Complexity Effects on Writing Processes and Correlations With Text Features

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Research on task complexity (TC) effects on second language (L2) text features is abundant and has contributed critical insights. Comparatively, less is known about how L2 writers respond cognitively to diverse TC conditions or about potential effects of such processing activity on the characteristics of the texts produced.
Aitor Garcés‐Manzanera   +4 more
wiley   +1 more source

Subsistence hunting shapes the spatial variation of jaguar densities in community‐managed forests

open access: yesJournal of Zoology, EarlyView.
Jaguars and people can coexist in community‐managed forests, but distance matters. In Guatemala's Maya Biosphere Reserve, jaguar numbers increased markedly in areas harder to reach on foot, yet jaguars were still found near communities, showing that responsibly managed forests can support jaguar populations while allowing people to maintain traditional
L. Perera‐Romero   +5 more
wiley   +1 more source

Melanism in salamanders: effects of insularity, sex and size on dorsal colouration in Salamandra salamandra

open access: yesJournal of Zoology, EarlyView.
In this study we tested the effects of insularity on amphibian colouration using the fire salamander as a model system. Although increased melanism was not a consistent pattern across all islands, salamanders from one island exhibited higher proportions of black pigmentation than mainland populations, while insular populations overall showed reduced ...
L. Alarcón‐Ríos   +2 more
wiley   +1 more source

Peridomestic infestation by Triatoma pallidipennis and natural infection with Trypanosoma cruzi in Zacatepec, Morelos, Mexico Infestación peridoméstica por Triatoma pallidipennis e infección natural por Trypanosoma cruzi en Zacatepec, Morelos, México

open access: yesMedical and Veterinary Entomology, EarlyView.
Entomological and community‐related risk factors for Chagas disease were assessed through peridomestic sampling, calculation of entomological indices and surveys of community knowledge, attitudes and practices. Forty‐six triatomines, all identified as Triatoma pallidipennis, were collected, and all specimens showed natural infection with Trypanosoma ...
Reyna Vargas‐Abasolo   +5 more
wiley   +1 more source

Predictive evolutionary genomics: principles, validation, and practice

open access: yesNew Phytologist, EarlyView.
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos   +5 more
wiley   +1 more source

[Development of a measure of functional health literacy: application of Item Response Theory]. [PDF]

open access: yesCad Saude Publica
Jesus PR   +4 more
europepmc   +1 more source

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