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  • Open Access

    ARTICLE

    Experimental Exclusion of Guanaco Grazing Increases Cover, Diversity, Land Function and Plant Recruitment in Patagonia

    Carla Cepeda1,*, Gabriel Oliva1,2, Daniela Ferrante1,2

    Phyton-International Journal of Experimental Botany, Vol.93, No.7, pp. 1383-1401, 2024, DOI:10.32604/phyton.2024.052534

    Abstract Semiarid Patagonia represents 25% of the rangeland area in Argentina, and sheep overgrazing has degraded about a third of it in the past. In this century, depleted domestic stocks have mostly stabilized, but Guanaco populations have grown. These native camelids share habitat and diets with sheep, but their effect on vegetation is poorly understood and has long been debated. We set up an exclusion experiment in Monte León and Cañadón Vaca, a semiarid shrubland grassland in southern Patagonia, currently grazed only by guanacos. Vegetation baselines were studied in 2016 in twelve plots, and half of… More >

  • Open Access

    REVIEW

    Ecosystem Services of Grazed Grasslands in the Flooding Pampa

    Elizabeth J. Jacobo1,#,*, Adriana M. Rodríguez2,#

    Phyton-International Journal of Experimental Botany, Vol.93, No.6, pp. 1179-1202, 2024, DOI:10.32604/phyton.2024.050928

    Abstract The Flooding Pampa grasslands are the last remnant of the Rio de la Plata grasslands in Argentina. Anthropogenic interventions have led to severe degradation and, as a result, the ecosystem services provided by the grasslands are declining, in terms of provisioning, regulating, and supporting services. We synthesized the existing literature on the ecosystem goods and services provided by these grasslands under grazing in different conditions and conservation status. We found that plant and animal diversity and primary production are the most studied ecosystem services, while climate regulation, water supply, nutrient cycling, meat production and erosion… More >

  • Open Access

    REVIEW

    SOLAR DRYING OF HERBAL WEALTH IN EASTERN HIMALAYA: A REVIEW

    Priyanka Chauhana , Himani Pathaniaa, Shriyaa, Neetikaa, Nidhia, Sakshia, Sheetal Choudharya, Rajesh Kumarb,*, Mamta Sharmaa,c,*, Sameer Rahatekard, Anil Kumare,*

    Frontiers in Heat and Mass Transfer, Vol.18, pp. 1-20, 2022, DOI:10.5098/hmt.18.34

    Abstract Solar dryers have proven to be one of the best environmentally friendly approaches for drying purpose of medicinal plants and agricultural crops. Use of solar radiations in drying purpose of plant parts has proven economically as well as environmentally responsible and sensible application. Plants are the treasure of nature with hidden medicinal properties to treat diseases. Plant material should be processed properly for extraction of medicinal molecules in terms drying to decrease the manufacturing loss and to increase the standard of product. Cognizances of ethnobotanical knowledge on plant wealth are extremely beneficial in utilization and… More >

  • Open Access

    ARTICLE

    Nanobiodiversity: The Potential of Extracellular Nanostructures

    Felipe Orozco1‡, Brian Alfaro-González1‡, Yendry Corrales Ureña1, Karolina Villalobos1, Angie Sanchez1, Francisco Bravo1, José Roberto Vega1, Orlando Argüello-Miranda1†*

    Journal of Renewable Materials, Vol.5, No.3-4, pp. 199-207, 2017, DOI:10.7569/JRM.2017.634110

    Abstract As an outcome of millions of years of evolution, biological systems have developed different methods to interact with their surroundings. Many of these adaptations, such as secretions, light-interacting surfaces, biochemical active compounds, and many other survival strategies, are phenomena occurring at the nanometric scale. In this review, we describe how extracellular nanometric structures are responsible for manipulating energy and matter, creating some of the emergent properties of life. Iridescent colors in birds’ feathers, the manipulation of wettability of insects’ exoskeletons, the adhesive properties of nanopatterned secretions and the ability to polarize light are examples of More >

  • Open Access

    ARTICLE

    Application of the Participatory Rural Appraisal (PRA) to assess the ethnobotany and forest conservation status of the Zarghoon Juniper Ecosystem, Balochistan, Pakistan

    Bazai ZA1, RB Tareen1, AKK Achakzai1, H Batool2

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 69-74, 2013, DOI:10.32604/phyton.2013.82.069

    Abstract The data collection approach called Participatory Rural Appraisal (PRA) was used in five villages: Killi Tor Shore; Medadzai; Ghunda; Kala Ragha, and Killi Shaban. Up to five groups were sampled in each village, comprising a total of 17 villages within the Zarghoon Juniper ecosystem. This area is rich both historically and culturally for using medicinal plants, mostly by women (60%). In this study, 26 species of medicinal plants fit in 20 genera and 13 families. They are used by aboriginal people via the indigenous knowledge they have for the treatment of many diseases. About 60,… More >

  • Open Access

    ARTICLE

    A revision of Eupatorium (Compositae: Eupatorieae) from Michoacan

    Garcia Sanchez E1,2, CB Ramirez Lopez1,2, REN del Rio Torres2, MM Martinez Pacheco2

    Phyton-International Journal of Experimental Botany, Vol.80, pp. 139-146, 2011, DOI:10.32604/phyton.2011.80.139

    Abstract An important study in species of the genus Eupatorium, that inhabits other parts of the world, was conducted in the search for new molecules with pharmacological activities, thus showing that it is a potential source of novel secondary metabolites. We reviewed the number of Eupatorium species that have been described in the State of Michoacan, and that can be available for harvesting, to make a phytochemical screening. It was found that 69 Eupatorium spp are growing in 69% of the Michoacan territory. Within this group there are ten species used in Mexican traditional medicine. It was evident More >

  • Open Access

    ARTICLE

    Patch size and shape and their relationship with tree and shrub species richness

    Pincheira-Ulbrich1 J, JR Rau2, F Peña-Cortés1

    Phyton-International Journal of Experimental Botany, Vol.78, pp. 121-128, 2009, DOI:10.32604/phyton.2009.78.121

    Abstract The size and shape of 10 native forest patches were related to tree and shrub species richness in the pre coastal mountain range in Osorno province, southern Chile. Four regression models were adjusted (lineal, logarithm, exponential, and power regression) between patch size (area = x) and tree and shrub species richness (y). Patch shape was quantified through three indexes (Patton diversity index, compactness index and fractal dimension) which were correlated with the tree and shrub richness. Results allowed to conclude that (1) species richness tends to increase significantly with patch size; this relationship was explained More >

  • Open Access

    ABSTRACT

    Supplement. 13 Symposium: BIOLOGY AND CULTURE OF SILVERSIDES (PEJERREYES) The Darwin Initiative and the whitefish Chirostoma estor estor: A link between aquaculture, biodiversity and rural livelihoods

    LINDSAY G. ROSS1, CARLOS A. MARTÍNEZ-PALACIOS2, MARIA LUISA RODRÍGUEZ DE SOUSA3, ANTONIO CAMPOS-MENDOZA2

    BIOCELL, Vol.30, Suppl.S, pp. 119-120, 2006

    Abstract This article has no abstract. More >

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