Results 71 to 80 of about 592 (189)

La capacidad de carga psicosocial del turista: instrumento de medición para el desarrollo sostenible en la turistificación de los cenotes

open access: yesCuadernos de Turismo, 2019
La capacidad de carga psicosocial ha demostrado ser un instrumento efectivo para establecer números máximos de personas que un turista está dispuesto a ver simultáneamente en espacios naturales. Aunque, ha sido muy aplicado en parques nacionales de EEUU,
Rocío Blanco Gregory   +2 more
doaj   +1 more source

Adaptación del modelo de planeación dofa para la administración sostenible de parques nacionales

open access: yesRevista Escuela de Administracion de Negocios, 2013
Colombia es un país reconocido mundial-mente por su riqueza ecológica, la cual se trata de preservar mediante muestras representativas, contenidas en diversas áreas de los parques nacionales naturales; sin embargo, su gestión amerita la incorporación de
Ana María Correa Leal   +1 more
doaj  

Environmental Justice in the Brazilian Coastal Food Systems: Policies, Institutions, and Knowledges on Small‐Scale Fishers and Energy Development

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT This study explores environmental justice issues in coastal food systems, focusing on conflicts between small‐scale fisheries and the energy sector due to differing goals in managing food and energy sources. It does so by examining the interdependence between institutions, policies, and different types of knowledge; key elements in building ...
Mateus Henrique Amaral   +6 more
wiley   +1 more source

Systematics of Marmosa Subgenus Micoureus With Emphasis in ‘rapposa’ Group (Didelphidae, Marmosini): Geographic Variation and Revalidation of M. budini

open access: yesZoologica Scripta, Volume 55, Issue 5, Page 681-692, September 2026.
ABSTRACT Micoureus is the most species‐rich subgenus within the genus Marmosa. Conflicting arrangements regarding the number of species comprising this subgenus have been proposed and the validity of M. budini has been debated. Here, we used an approach integrating genetic and morphological data were conducted to reanalyze the ‘rapposa’ group ...
Maria Clara Santos Ribeiro   +3 more
wiley   +1 more source

Distribution patterns and trophic characteristics of salmonids and native species inhabiting high altitude rivers of Pampa de Achala region, Argentina

open access: yesNeotropical Ichthyology
The Pampa de Achala in central Argentina is an area with low fish species richness where salmonids were first introduced at the beginning of the twentieth century.
Ricardo A. Ferriz   +2 more
doaj   +1 more source

Análisis polinico de mieles de los Parques Naturales Los Alcornocales y Sierra de Grazalema.

open access: yesActa Botanica Malacitana, 2003
RESUMEN. Análisis polinico de mieles de los Parques Naturales Los Alcornocales y Sierra de Grazalema. Seha realizado el análisis microscópico de 7 muestras de miel de los Parques Naturales Los Alcornocales y Sierra de Grazalema. Las muestras fueron proporcionadas directamente por los apicultores.
Díez Dapena, María Josefa   +2 more
openaire   +5 more sources

The Renal Function of the Wild Rodent Cerradomys goytaca Reveals Adaptations in the Mechanisms of Urinary Concentration and Solute Excretion

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 7, Page 772-784, August 2026.
Renal adaptations of Cerradomys goytaca associated with survival in its natural habitat. Graphical Abstract of the main renal physiological characteristics identified in C. goytaca. This species exhibits an increased kidney mass index, elevated urine osmolality, and enhanced tubular water reabsorption, indicating a higher capacity for water ...
Luzia Agusta Valeriano‐Monici   +10 more
wiley   +1 more source

Vitex oreadica and V. umbellata (Lamiaceae): two new species from Cerrado and Atlantic forest of Brazil

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
Vitex L. is a pantropical genus of Lamiaceae comprising 209 taxa. Brazil harbors 35 species, representing nearly 50% of the genus richness in the Neotropics, with the Amazon showing the highest richness, followed by the Atlantic Forest and Cerrado domains. Nevertheless, most taxonomic studies of the genus have been conducted in Africa and Asia.
Thaís Teixeira Conegiro   +2 more
wiley   +1 more source

Guapira leucophylla (Nyctaginaceae, Caryophyllales), a new species from the northern Espinhaço Range of Minas Gerais, Brazil

open access: yesNordic Journal of Botany, Volume 2026, Issue 8, August 2026.
Guapira Aubl. (Nyctaginaceae, Pisonieae) comprises dioecious shrubs and trees widely distributed in the Neotropics and occupying diverse habitats. In the Brazilian Cerrado, the genus occurs in several phytophysiognomies, including Campos Rupestres, a montane rock ecosystem with high levels of endemism but still marked by significant gaps in botanical ...
Danilo Alvarenga Zavatin   +4 more
wiley   +1 more source

Diversidad y composición de anfibios en el valle del río Cimitarra, sur de la serranía de San Lucas, Colombia

open access: yesBiota Colombiana
La serranía de San Lucas (Colombia) se considera de alto valor para la conservación de la biodiversidad, pero poco se sabe sobre su fauna. Entre finales de 2016 (lluvias) e inicios de 2017 (seca) se realizaron dos salidas de campo para caracterizar la ...
Julián A. Rojas-Morales   +1 more
doaj   +1 more source

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