SciELO - Scientific Electronic Library Online

vol.31 número1Escarabajos fitófagos (Coleoptera: Scarabaeidae) del Departamento del Atlántico, ColombiaEspecies de Encarsia Förster (Hymenoptera: Aphelinidae) parasitoides de la mosquita blanca Aleurothrixus chivelensis (Sampson & Drews) (Hemiptera: Aleyrodidae) en Tamaulipas, México índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados

  • No hay artículos similaresSimilares en SciELO


Acta zoológica mexicana

versión On-line ISSN 2448-8445versión impresa ISSN 0065-1737


CASTELLANOS-VARGAS, Iván; GARCIA-GARCIA, Patricia L.  y  CANO-SANTANA, Zenón. Orthopterological diversity in the southeastern of Ciudad Universitaria (UNAM). Acta Zool. Mex [online]. 2015, vol.31, n.1, pp.97-108. ISSN 2448-8445.

The steady growth of human population causes that the urban area extends its limits to ecological reserves reducing the size of these, generating significant edge effects that accentuate the landscape fragmentation and increase the loss of continuity from vegetation cover. Ecological reserves and the urban green areas (represented by parks and gardens) are relict habitats for many species that survive in the urban matrix. The Pedregal de San Ángel Ecological Reserve at Ciudad Universitaria (PSAER-CU) is the most important in the southwest of Mexico City because it embodies 237.3 hectares and possesses 377 species of vascular plants, 180 species of native vertebrates and preserves at least 817 arthropod species, out of which 26 are orthopterans, the latter play an important role in the food chain and are determinants of ecosystem functioning. This study aimed to: 1. Elaborate a check list of the Orthoptera species that survive in the Southeastern Territorial Reserve from Ciudad Universitaria (SETR); 2. Compare the attributes (abundance, diversity and density) of the Orthoptera community that inhabit the SETR with respect to the Orthoptera species occurring at the Southeast Core Zone at PSAER; 3. Discuss the environmental value of the SETR as Environmental Buffer Zone for PSAER. The relative abundance of each species did not differ significantly between the SETR and the Core Zone. We found five Orthoptera species at SETR, the species with greatest abundance was Sphenarium purpurascens purpurascens Charpentier, 1842 Pyrgomorphidae, followed by Phoetaliotes nebrascensis (Thomas, 1872) Acrididae. The presence of Conocephalus (Xiphidion) ictus (Scudder, 1875) Tettigoniidae represents a new taxonomic record for the study area. We discuss that the SETR differs on orthopterological diversity from the Southeast Core Zone at PSAER and argue its importance for wildlife conservation; as well as the importance that the Orthoptera possess according to their position in the food chain and why they are determinants of ecosystem functioning.

Palabras llave : Conocephalus (Xiphidion) ictus; habitat fragmentation; Orthoptera; Pedregal de San Angel Ecological Reserve; Sphenarium purpurascens purpurascens; urbanization.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons