Toon 581 - 600 resultaten van 2.802 Voor zoekopdracht '"Mexico"', zoektijd: 0,03s Verfijn jouw resultaten
  1. 581

    A new species of Portulaca (Portulacaceae) from the state of Guanajuato (Mexico) Auteurs: Ocampo Acosta, Gilberto

    “…It is only known from the type locality, in the municipality of Iturbide, state of Guanajuato, Mexico. It belongs to section Portulaca of subgenus Portulaca and is distinguished mainly by its perennial habit with napiform root as well as by its red style.…”
    Online
    Gepubliceerd in 2002
  2. 582

    A new species of Fuirena (Cyperaceae) from the state of Campeche (Mexico) Auteurs: Ramos Álvarez, Clara Hilda, Diego-Pérez, Nelly

    “…., is described from plants collected in the state of Campeche, Mexico. F. stephani can be distinguished from F. robusta Kunth, by the shape of the outer perianth set. …”
    Online
    Gepubliceerd in 2002
  3. 583
  4. 584
  5. 585

    Tigridia gracielae (Tigridieae: Iridaceae), a new species from Mexico Auteurs: Rodríguez, Aarón, Ortiz-Catedral, Luis

    “…Tigridia gracielae (Tigridieae: Iridaceae), from the state of México, is a new species morphologically similar to T. venusta, from the state of Michoacán. …”
    Online
    Gepubliceerd in 2003
  6. 586
  7. 587

    The genus Heliopsis (Heliantheae; Asteraceae) in Mexico and the alkamides stored in its roots Auteurs: García-Chávez, Abraham, Ramírez Chávez, Enrique, Molina-Torres, Jorge

    “…It includes 14 species, most of them endemic to Mexico. One of the species, Heliopsis longipes, is utilized in traditional medicine. …”
    Online
    Gepubliceerd in 2004
  8. 588

    Urtica praetermissa (Urticaceae): a new species from central Mexico Auteurs: Steinmann, Victor W.

    “…Urtica praetermissa (Urticaceae), a new species from central Mexico, is described and illustrated. It occurs in the trans-Mexican volcanic belt and the Sierra Madre del Sur in the Distrito Federal and the states of Guerrero, Mexico, and Michoacan. …”
    Online
    Gepubliceerd in 2004
  9. 589
  10. 590

    Wood anatomy of species of a deciduous dry forest at Tamaulipas, Mexico Auteurs: Ramírez-Martínez, Monserrat, Terrazas, Teresa, Aguilar-Rodríguez, Silvia, Martínez-Ávalos, José Guadalupe

    “…Wood anatomy of 21 species of the deciduous dry forest at Tamaulipas, Mexico was studied with the aim of contributing to their anatomical knowledge and to compare their attributes with each other and with other deciduous dry forest of Mexico. …”
    Online
    Gepubliceerd in 2017
  11. 591
  12. 592

    Use and management of firewood in dwellings of six localities from Yucatán, México Auteurs: Quiroz-Carranza, Joaquín, Orellana, Roger

    “…The consumption patterns of domestic firewood was analyzed in 1153  homes of six localities of Yucatan, Mexico, through questionnaires structured applied key informants and field samplings in the extraction sites.  …”
    Online
    Gepubliceerd in 2016
  13. 593

    Mangrove reforestation tests in a semiarid coastal swamp of Yucatán, México Auteurs: Febles-Patrón, José Luis, Novelo López, Jorge, Batllori Sampedro, Eduardo

    “…(black mangrove) seedling survival and growth were evaluated in reforestation trials as part of an environmental restoration and regional development program in the Chabihau coastal microbasin, Yucatan, Mexico. Building of road bridges over inlets modified swamp conditions by increasing tide reflux and reducing salinity extremes. …”
    Online
    Gepubliceerd in 2016
  14. 594

    Application of multi-criterion techniques on integral forest management in Durango, México Auteurs: Pérez-Verdín, Gustavo, Hernández-Díaz, José Ciro, Márquez-Linares, Marco Antonio, Tecle, Aregai

    “…In this study, a technical framework to analyze and solve a multiobjective forest problem in an ejido of Durango, Mexico is presented. Forest inventory data and expert consultation were used to construct ten objective response functions expressed in terms of tree basal area, number of trees per hectare, and quadratic mean diameter. …”
    Online
    Gepubliceerd in 2016
  15. 595

    Planning forest recreation in natural protected areas of southern Durango, Mexico Auteurs: Pérez Verdín, Gustavo, Lee, Martha E., Chavez, Deborah J.

    “…This research investigated the usefulness of the Recreation Opportunity Spectrum (ROS) for managing forest recreation in two natural protected areas of southern Durango, Mexico. We used onsite interviews to document the recreation activities visitors participated in, the characteristics of their preferred recreation sites, and socio-demographic information. …”
    Online
    Gepubliceerd in 2016
  16. 596

    Additive biomass equations for pine species of forest plantations of Durango, Mexico Auteurs: Návar Cháidez, José de Jesús, González Barrientos, Nicolás, Graciano Luna, José de Jesús, Dale, Virginia, Parresol, Bernard

    “…Statistical analysis between three weighted additive biomass equations are presented for planted pine species typical of the coniferous forests of the Western Sierra Madre mountain range of Durango, Mexico. Statistical and graphical analyses were used to select the best single and multiple individual biomass component equation. …”
    Online
    Gepubliceerd in 2016
  17. 597
  18. 598

    Mangrove swamps: sentinel ecosystem in front of the climatic change, Gulf of Mexico Auteurs: Yáñez-Arancibia, Alejandro, Day, John W., Twilley, Robert R., Day, Richard H.

    “…We conclude that mangrove ecosystem is a “sentinel-ecosystem” in front of climate change impactin the Gulf of Mexico.…”
    Online
    Gepubliceerd in 2013
  19. 599

    Variation of carbon uptake from forest species in Mexico: a review Auteurs: Pompa-Garcia, Marin, Sigala Rodríguez, José Ángel

    “…Currently, assessing carbon content in forest species is considered essential for programs designed to mitigate global warming. Although in Mexico these studies are becoming more numerous, we still do not know the state of the art in this scientific field. …”
    Online
    Gepubliceerd in 2017
  20. 600

    Potential distribution and abundance of candelilla (Euphorbia antisyphilitica) in northern Zacatecas, Mexico Auteurs: Bañuelos-Revilla, José Enrique, Palacio-Núñez, Jorge, Martínez-Montoya, Juan Felipe, Olmos-Oropeza, Genaro, Flores-Cano, Jorge Alberto

    “…The candelilla (Euphorbia antisyphilitica) grows in arid regions of Mexico, having social and economic importance, although its availability is not clearly defined. …”
    Online
    Gepubliceerd in 2019