TITLE

UNA LISTA FLORISTICA ACTUALIZADA PARA LA RESERVA DEL PEDREGAL DE SAN ANGEL, MEXICO D.F

AUTHOR(S)
Valiente-Banuet, Alfonso; De Luna Garcia, Efrain
PUB. DATE
March 1990
SOURCE
Acta Botanica Mexicana;mar1990, Issue 9, p13
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Pedregal of San Angel reserve, located in the campus of the Universidad Nacional Autónoma de México, characterized by a xerophilous scrubland vegetation, has been considered as a place of high floristic richness since the last century. Considering that the original area occupied by the scrubland has been reduced from 4000 to 124.5 ha, it is important to analyze the number and identity of the species that currently can be found in the area. In this work we report that the reserve has 301 species of angiosperms grouped in 61 families. Considering available floristic information of this community, we estimate that the original number of species was approximately 350. Of this number it is still possible to find 226 species. This figure is higher than expected according to the empirical relation of the theory of island biogeography. The sources of newly recorded species are discussed in the context of diaspore dispersion from adjacent oak forests and the introduction of propagules in the soil transported into the University gardens from other sites in the Distrito Federal. Local extinction of taxa is associated to urbanization and robbery of ornamental species, activities that have not ceased.
ACCESSION #
21367567

 

Related Articles

  • Island biogeography of urban insects: tenebrionid beetles from Rome tell a different story. Fattorini, Simone // Journal of Insect Conservation;Aug2014, Vol. 18 Issue 4, p729 

    Tenebrionid beetle records from 55 sites in urban Rome (Italy) were used to study the influence of structural parameters (area, isolation, forest cover, and shape) of green spaces on species richness and extinction trends. In line with biogeographical predictions, species richness correlated...

  • Biotic Globalization: Does Competition from Introduced Species threaten Biodiversity? Davis, Mark A. // BioScience;May2003, Vol. 53 Issue 5, p481 

    The introduction of new predators and pathogens has caused numerous well-documented extinctions of long-term resident species, particularly in spatially restricted environments such as islands and lakes. However, there are surprisingly few instances in which extinctions of resident species can...

  • Soundings.  // Horticulture;Jul/Aug99, Vol. 96 Issue 6, p16 

    Presents several flowering plants that can be grown for the fall season. Place in the garden to grow Fritillara meleagris and Fritillara persica; Plants that are good for limy soil; Information on tuberous plant.

  • Zanne et al. reply. Zanne, Amy E.; Tank, David C.; Cornwell, William K.; Eastman, Jonathan M.; Smith, Stephen A.; FitzJohn, Richard G.; McGlinn, Daniel J.; O'Meara, Brian C.; Moles, Angela T.; Reich, Peter B.; Royer, Dana L.; Soltis, Douglas E.; Stevens, Peter F.; Westoby, Mark; Wright, Ian J.; Aarssen, Lonnie; Bertin, Robert I.; Calaminus, Andre; Govaerts, Rafaël; Hemmings, Frank // Nature;5/21/2015, Vol. 521 Issue 7552, pE6 

    A response to a letter to the editor about an article on the traits which facilitated angiosperm shifts into freezing climates that was published in a previous issue is presented.

  • We KIO You NOT.  // Green Left Weekly;7/28/2010, Issue 846, p13 

    The article offers world news briefs threats to animals and plants which include over-fishing which is threatening the sturgeon population which is south for its caviar in Eurasian counties, and a report that flowering plants are under threat of extinction.

  • Archaeological Paleobiogeography in the Russian Far East:The Kuril Islands and Sakhalin in Comparative Perspective. Fitzhigh, Ben; Moore, Scotty; Lockwood, Chris; Boone, Cristie // Asian Perspectives: Journal of Archeology for Asia & the Pacific;Spring2004, Vol. 43 Issue 1, p92 

    Presents a biogeographical analyses of lithic artifacts and archeofauna from the Kuril Island chain and southern Sakhalin Island in the Sea of Okhotsk. Utility of the theory of island biogeography in the systematic comparison of island-based archaeological assemblages; Dynamics of insular...

  • ECOLOGICAL BIOGEOGRAPHY OF LOGANIACEAE IN WEST AFRICA. Oduoye, O. T.; Ogundipe, O. T. // International Journal of Advanced Biological Research;Jul2013, Vol. 3 Issue 3, p377 

    Ecological biogeography studies the factors that define the spatial distribution of species in the present time and the abiotic factors that define the ecological biogeography of plants on land have been shown to be climate affecting the vegetation. Loganiaceae species were collected from West...

  • Diversity of Quinoa in a Biogeographical Island: a Review of Constraints and Potential from Arid to Temperate Regions of Chile. BAZILE, Didier; MARTÍNEZ, Enrique A.; FUENTES, Francisco // Notulae Botanicae Horti Agrobotanici Cluj-Napoca;Jul-Dec2014, Vol. 42 Issue 2, p289 

    Chile, isolated by a hyper-arid desert in the north, the Andes Range to the east and the Pacific and Antarctic waters (west and south), has a highly endemic flora. This hotspot of biodiversity is in danger not only due to increasing desertification, but also because human activities can diminish...

  • Evaluation of the New CNDV Option of the Community Land Model: Effects of Dynamic Vegetation and Interactive Nitrogen on CLM4 Means and Variability*. Gotangco Castillo, C. Kendra; Levis, Samuel; Thornton, Peter // Journal of Climate;Jun2012, Vol. 25 Issue 11, p3702 

    The Community Land Model, version 4 (CLM4) includes the option to run the prognostic carbon-nitrogen (CN) model with dynamic vegetation (CNDV). CNDV, which simulates unmanaged vegetation, modifies the CN framework to implement plant biogeography updates. CNDV simulates a reasonable present-day...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics