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Protected areas are spaces where biodiversity is preserved. They are designed to maintain the balance in natural ecosystems, to protect the species developed in the area and to preserve natural resources, cultural and environmental services. The Parque Luro Reserve is a protected area located at the centre-east of the department of Toay, La Pampa Province. The purpose of the reserve is to protect a small area of calden forest. The aim of this paper is to analyze the vegetation pattern in the Parque Luro Reserve. To achieve this, two tasks were carried out: the identification and the characterization of the representative vegetation of the calden forest in Parque Luro. The description of the vegetation allows for the comparison and classification of different vegetation units. The survey of floristic composition established its spatial distribution in different sectors of the area of study. The quantitative methods applied were Braun Blanquet scale and Dansereau's scheme based on transects. In addition, the quantitative technique of nearest neighbor was used. Through this study, two dominant forms of distribution of the vegetation were distinguished, one associated with the calden open savannah and the other with a closed calden area with presence of shrubbery. [ABSTRACT FROM AUTHOR]

During botanical explorations carried out in Malargüe, between 2003 and 2005, 940 specimens were collected, and 39 taxa are recorded for the first time for Mendoza province, Argentina. Characteristics of habitat and life form are given for each taxon. Common names of some of these taxa are given, based on the oral information obtained from the local people. [ABSTRACT FROM AUTHOR]

The cutworms complex in the semiarid oriental region of La Pampa province is integrated for: Agrotis malefida, A. gypaetina, Peridroma saucia y Pseudoleucania bilitura (Lepidoptera: Noctuidae). The present contribution is a synthesis of the available information on these four species that cause damages in the cultures. The group of the noctuidos is described and the biology is synthesized with special reference to the species mentioned previously. Also, for each one of the species it is provided the geographical distribution and a listing of host plants. The complex includes three neotropicales species (A. malefida, A. gypaetina and Pseudoleucania bilitura)', the distribution of the first one extends until the South of Neartida and a cosmopolitan species (Peridroma saucia). The information is emphasized taken place on the group in Argentina. [ABSTRACT FROM AUTHOR]

Taraxacum gilliesii Hook. & Am. (Asteraceae) is reported for La Pampa province expanding its distribution area in Argentina. A key is supplied for distinguish from T. officinale F. H. Wigg. also present in this province. [ABSTRACT FROM AUTHOR]