Results 11 to 20 of about 374,863 (207)

El aprovechamiento turístico de los recursos naturales en Loreto (Perú) [PDF]

, 2010
Loreto, el departamento más grande del Perú, alberga un extenso territorio bañado por las aguas del Amazonas y sus afluentes. Esta característica hace que la diversidad biológica y los recursos naturales sean fuente de riqueza de los pueblos indígenas y de ciudades tan características como Iquitos, capital de departamento, marcando de forma innegable ...
Cebrián Abellán, Francisco, Juárez Alonso, Gloria   +1 more
openaire   +5 more sources

What feeds on Quercus ilex L.? A biogeographical approach to studying trophic interactions in a Mediterranean keystone species

Diversity and Distributions, Volume 28, Issue 1, Page 4-24, January 2022., 2022
Abstract Aim Holm oak (Quercus ilex L.) is regarded as a keystone plant species. Trophic interactions may affect the distribution and abundance of phytophagous species, but the number of arthropod species that use holm oak as a food resource and their levels of host specificity are not yet known.
Juan Antonio Hernández‐Agüero, Ildefonso Ruiz‐Tapiador, Luis Cayuela, Francesco Maria Sabatini   +3 more
wiley   +1 more source

Mycorrhizal science outreach: Scope of action and available resources in the face of global change

PLANTS, PEOPLE, PLANET, Volume 3, Issue 5, Page 506-522, September 2021., 2021
Mycorrhizal associations are acknowledged as key components of global ecosystem functioning. This is especially relevant in the context of global change, since they contribute to the amelioration of adverse soil conditions and play crucial roles in agriculture.
Patricia Silva‐Flores, Andrés Argüelles‐Moyao, Ana Aguilar‐Paredes, Francisco Junior Simões Calaça, Jessica Duchicela, Natalia Fernández, Ariadne N. M. Furtado, Beatriz Guerra‐Sierra, Milagros Lovera, César Marín, Maria Alice Neves, Fabiana Pezzani, Andrea C. Rinaldi, Krystel Rojas, Aida Marcela Vasco‐Palacios   +14 more
wiley   +1 more source

An illicit artisanal fishery for North Pacific white sharks indicates frequent occurrence and high mortality in the Gulf of California

Conservation Letters, Volume 14, Issue 4, July/August 2021., 2021
Abstract Large sharks shape ecosystems across their geographic ranges and have become a top research and conservation priority. Eastern North Pacific (ENP) white shark (Carcharodon carcharias) aggregations off the United States and Mexico are well described, but their population status is currently uncertain.
Daniel J. Madigan, Natalie S. Arnoldi, Nigel E. Hussey, Aaron B. Carlisle   +3 more
wiley   +1 more source

Evolutionary mismatch along salinity gradients in a Neotropical water strider

Ecology and Evolution, Volume 11, Issue 10, Page 5121-5134, May 2021., 2021
Using common garden experiments, we quantify fitness trade‐offs along a salinity gradient in two populations of the Neotropical water strider Telmatometra withei—a species found in both fresh and brackish water environments across Panama. We found that populations seemingly persisting in high salinity environments might, in fact, be maladapted ...
Anakena M. Castillo, Luis F. De León
wiley   +1 more source

La problemática socioambiental e institucional de la reforestación en la Región de la Montaña, Guerrero, México

Botan‪ical Sciences, 1996
En este estudio se analizan las causas que han impedido el funcionamiento exitoso de los programas de reforestación en la región de "La Montaña", Guerrero, México.
Virginia Cervantes, Vicente Arriaga, Julia Carabias   +2 more
doaj   +1 more source

Efficiency of RAPD, ISSR, AFLP and ISTR markers for the detection of polymorphisms and genetic relationships in camote de cerro (Dioscorea spp.)

Electronic Journal of Biotechnology, 2014
Background: At present, species known as camote de cerro (Dioscorea spp.) are found only in the wilderness in Mexico, but their populations are extremely depleted because they are indiscriminately collected, it is urgent to evaluate the conservation ...
Ana Paulina Velasco-Ramírez, Martha Isabel Torres-Morán, Sandy Molina-Moret, José de Jesús Sánchez-González, Fernando Santacruz-Ruvalcaba   +4 more
doaj   +1 more source

COBERTURA TEMPORAL DE LOS HUMEDALES EN LA CUENCA DEL USUMACINTA, BALANCÁN, TABASCO, MÉXICO

Ecosistemas y Recursos Agropecuarios, 2014
Los humedales del municipio de Balancán se interpretaron de manera visual en pantalla mediante el uso de imágenes de satélite LANDSAT en las temporadas de mínima y máxima inundación (2007). Un total de 13 289 ha (3.48 %) y 35 519 ha (8.66 %) de humedales
Feliciana Estrada Loreto, Everardo Barba Macías, Rodimiro Ramos Reyes   +2 more
doaj   +1 more source

Diseño de un instrumento económico para la gestión de fauna silvestre: el caso del Valor al Estado Natural de los recursos de fauna silvestre

Investigación Agraria, 2022
De acuerdo a la normativa del sector forestal y de fauna silvestre, para realizar el aprovechamiento de los recursos de la fauna silvestre se debe pagar una retribución económica a favor del Estado.
Alfredo Apaza Ticona, Edgar Alexs Arana Olivos   +1 more
doaj   +1 more source

Genetic diversity and population structure of founders from wildlife conservation management units and wild populations of critically endangered Dermatemys mawii

Global Ecology and Conservation, 2019
Many endangered freshwater turtle species are born in captivity for conservation and future reintroduction into the wild. However, in order to improve breeding programs, an assessment of the genetic diversity of the founder individuals is required to ...
Manuel Ignacio Gallardo-Alvárez, Julia María Lesher-Gordillo, Salima Machkour-M’Rabet, Claudia Elena Zenteno-Ruiz, León David Olivera-Gómez, María del Rosario Barragán-Vázquez, Liliana Ríos-Rodas, Alejandra Valdés-Marín, Héctor Gilberto Vázquez-López, Stefan Louis Arriaga-Weiss   +9 more
doaj   +1 more source