Results 61 to 70 of about 3,675 (198)

Transformación de la vegetación por cambio de uso del suelo en la Reserva de la Biosfera Calakmul, Cam peche

open access: yesInvestigaciones Geográficas, 2001
The methods and techniques used to develop the vegetation and land-use map of the Calakmul Biosphere Reserve are presented. The information was processed using a Geographic Information System (GIS), generating a digital geographic database.
Geranio García Gil   +2 more
doaj   +1 more source

Recursos naturales y género : el caso de la comunidad Once de Mayo (Campeche, México) [PDF]

open access: yes, 2013
Este estudio pretende realizar una aproximación al papel de la cooperación en el empoderamiento femenino sobre los recursos naturales en la comunidad rural mexicana Once de Mayo.
Flecha Legaz, Carla   +1 more
core  

High levels of genetic variation and differentiation in wild tropical gourds provide a novel resource for cucurbit crop improvement

open access: yesPLANTS, PEOPLE, PLANET, Volume 6, Issue 4, Page 834-846, July 2024.
The genetic variation of crop wild relatives will be key for our survival, as environmental change represents an increasing global threat for agriculture and food security. Cucurbita lundelliana and Cucurbita okeechobeensis subsp. martinezii are wild relatives of cultivated squashes and pumpkins that could be used for crop improvement.
Gabriela Castellanos‐Morales   +7 more
wiley   +1 more source

Description of a new species of Epicauta Dejean, 1834 from Mexico with a review of the Epicauta cupraeola species group (Coleoptera, Meloidae) [PDF]

open access: yes, 2013
[EN] We describe a morphologically remarkable new species of the Epicauta cupraeola species group from the highlands of the State of Nayarit, Mexico. The external appearance of Epicauta cora sp.
García-París, Mario, Ruiz, J. L.
core   +2 more sources

Bats and Mayan temples: Bat diversity and the potential for conservation of archeological zones in Yucatan, Mexico

open access: yesBiotropica, Volume 56, Issue 4, July 2024.
The role of archeological zones in biological conservation has been highlighted because they restrict land‐use change, size, and maintenance of upstanding vegetation. We found 23 species from six families and seven guilds, representing 53% of all bat species known from the Yucatan state, including two endangered species for Mexico.
Daniela Cafaggi   +2 more
wiley   +1 more source

Genomic variation in a widespread Neotropical bird (Xenops minutus) reveals divergence, population expansion, and gene flow [PDF]

open access: yes, 2014
Elucidating the demographic and phylogeographic histories of species provides insight into the processes responsible for generating biological diversity, and genomic datasets are now permitting the estimation of histories and demographic parameters with ...
Brumfield, Robb T., Harvey, Michael G.
core   +3 more sources

Threats to conservation from national security interests

open access: yesConservation Biology, Volume 38, Issue 1, February 2024.
Abstract There is a growing trend of nation states invoking national security and emergency declarations to build state‐sponsored infrastructure projects for border defense, energy production, and transportation. Established laws, regulations, and agreements for the protection of nature and cultural heritage within and between countries are becoming ...
Katarzyna Nowak   +5 more
wiley   +1 more source

Hongos tremeloides (Heterobasidiomycetes) de la Reserva de la Biosfera de Calakmul, Campeche, México

open access: yesRevista Mexicana de Biodiversidad, 2012
Se registran 7 especies de hongos tremeloides de la Reserva de la Biosfera de Calakmul: Auricularia cornea Ehrenb., A. delicata (Fr.) Henn., A. mesenterica (Dicks.) Pers., Dacryopinax elegans (Berk. et M.A. Curtis) G.W. Martin, D.
Sigfrido Sierra   +5 more
doaj   +1 more source

La ecología política en México ¿Dónde estamos y para dónde vamos? [PDF]

open access: yes, 2011
En México, cada vez es más común la inscripción de enfoques de investigación y desarrollo académico al ámbito de la ecología política. La irrupción de la ecología política como disciplina y referencia teórica es muy alentadora para quienes analizamos los
Fernanda Figueroa Díaz   +2 more
core   +1 more source

Abundancia relativa y selección de hábitat de Tapirus bairdii en las reservas de Calakmul y Balam Kú, Campeche, México

open access: yesRevista Mexicana de Biodiversidad, 2015
Se documenta la abundancia relativa y la selección de hábitat de Tapirus bairdii en la Reserva de la Biosfera de Calakmul y en la Reserva Estatal de Balam Kú en Campeche, México; en 3 sitios bajo el efecto del gradiente de humedad en la península de ...
Natalia Carrillo-Reyna   +2 more
doaj   +1 more source

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