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  • 1
    Publication Date: 2015-07-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fernandez-Llamazares, Alvaro -- Rocha, Ricardo -- England -- Nature. 2015 Jul 9;523(7559):158. doi: 10.1038/523158c.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Autonomous University of Barcelona, Spain; and University of Helsinki, Finland. ; University of Lisbon, Portugal; and University of Helsinki, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26156363" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; Conservation of Natural Resources/trends ; *Economic Development ; Environmental Policy/*trends ; Hydrocarbons
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-07-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedman-Rudovsky, Jean -- New York, N.Y. -- Science. 2012 Jul 20;337(6092):285-7. doi: 10.1126/science.337.6092.285.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22822124" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; *Earth (Planet) ; Forestry/*methods ; Trees/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2012-05-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedman-Rudovsky, Jean -- New York, N.Y. -- Science. 2012 May 11;336(6082):666-7. doi: 10.1126/science.336.6082.666.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22582241" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bolivia ; Capsules ; Chagas Disease/prevention & control/transmission ; Clinical Trials as Topic ; Humans ; Insect Control/*methods ; *Insect Vectors ; *Insecticides ; *Juvenile Hormones ; *Paint ; *Triatoma ; World Health Organization
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2011-05-10
    Description: The vast majority of Mesozoic and early Cenozoic metatherian mammals (extinct relatives of modern marsupials) are known only from partial jaws or isolated teeth, which give insight into their probable diets and phylogenetic relationships but little else. The few skulls known are generally crushed, incomplete or both, and associated postcranial material is extremely rare. Here we report the discovery of an exceptionally large number of almost undistorted, nearly complete skulls and skeletons of a stem-metatherian, Pucadelphys andinus, in the early Palaeocene epoch of Tiupampa in Bolivia. These give an unprecedented glimpse into early metatherian morphology, evolutionary relationships and, especially, ecology. The remains of 35 individuals have been collected, with 22 of these represented by nearly complete skulls and associated postcrania. These individuals were probably buried in a single catastrophic event, and so almost certainly belong to the same population. The preservation of multiple adult, sub-adult and juvenile individuals in close proximity (〈1 m(2)) is indicative of gregarious social behaviour or at least a high degree of social tolerance and frequent interaction. Such behaviour is unknown in living didelphids, which are highly solitary and have been regarded, perhaps wrongly, as the most generalized living marsupials. The Tiupampan P. andinus population also exhibits strong sexual dimorphism, which, in combination with gregariousness, suggests strong male-male competition and polygyny. Our study shows that social interactions occurred in metatherians as early as the basal Palaeocene and that solitary behaviour may not be plesiomorphic for Metatheria as a whole.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ladeveze, Sandrine -- de Muizon, Christian -- Beck, Robin M D -- Germain, Damien -- Cespedes-Paz, Ricardo -- England -- Nature. 2011 Jun 2;474(7349):83-6. doi: 10.1038/nature09987. Epub 2011 May 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Paleontology, Royal Belgian Institute of Natural Sciences, 29 rue Vautier, B-1000 Brussels, Belgium. sandrine.ladeveze@naturalsciences.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21552278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bolivia ; Female ; *Fossils ; Male ; Marsupialia/anatomy & histology/*classification ; Sex Characteristics ; *Social Behavior
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    Nature Publishing Group (NPG)
    Publication Date: 2010-09-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petherick, Anna -- England -- Nature. 2010 Sep 2;467(7311):17. doi: 10.1038/467017a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20811429" target="_blank"〉PubMed〈/a〉
    Keywords: Alligators and Crocodiles ; Animals ; Bolivia ; Cold Temperature ; *Disasters ; Dolphins ; *Ecosystem ; *Fishes ; *Rivers
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2007-09-22
    Description: Coupled climate-carbon cycle models suggest that Amazon forests are vulnerable to both long- and short-term droughts, but satellite observations showed a large-scale photosynthetic green-up in intact evergreen forests of the Amazon in response to a short, intense drought in 2005. These findings suggest that Amazon forests, although threatened by human-caused deforestation and fire and possibly by more severe long-term droughts, may be more resilient to climate changes than ecosystem models assume.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saleska, Scott R -- Didan, Kamel -- Huete, Alfredo R -- da Rocha, Humberto R -- New York, N.Y. -- Science. 2007 Oct 26;318(5850):612. Epub 2007 Sep 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA. saleska@email.arizona.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17885095" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; Brazil ; *Disasters ; *Ecosystem ; Peru ; *Photosynthesis ; Plant Leaves/metabolism ; *Rain ; Seasons ; *Trees/metabolism ; *Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2006-07-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, Constance -- New York, N.Y. -- Science. 2006 Jun 30;312(5782):1867.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16809504" target="_blank"〉PubMed〈/a〉
    Keywords: Anthropology ; Bolivia ; Female ; History, Ancient ; Humans ; *Indians, South American/history ; Life Expectancy ; *Longevity ; Male ; Mortality ; Population Groups/history
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2003-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reyes-Garcia, V -- Godoy, R -- Vadez, V -- Apaza, L -- Byron, E -- Huanca, T -- Leonard, W R -- Perez, E -- Wilkie, D -- New York, N.Y. -- Science. 2003 Mar 14;299(5613):1707.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Tropical Conservation and Development Center, University of Florida, Gainesville, FL 32611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637738" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; *Ethnobotany ; *Indians, South American ; *Knowledge ; Phytotherapy ; Plants, Edible ; Plants, Medicinal ; Surveys and Questionnaires
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokstad, Erik -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2049.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684794" target="_blank"〉PubMed〈/a〉
    Keywords: *Bertholletia/growth & development ; Bolivia ; Brazil ; Conservation of Natural Resources ; *Crops, Agricultural ; *Ecosystem ; *Nuts ; Peru ; Population Density ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2003-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schulze, Ernst-Detlef -- Mollicone, Danilo -- Achard, Frederic -- Matteucci, Giorgio -- Federici, Sandro -- Eva, Hugh D -- Valentini, Riccardo -- New York, N.Y. -- Science. 2003 Mar 14;299(5613):1669.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Biogeochemistry, Post Office Box 100164, 07701 Jena, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637722" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; Brazil ; *Carbon ; *Climate ; *Conservation of Natural Resources ; Greenhouse Effect ; International Cooperation ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
    Publication Date: 2003-12-20
    Description: A comparative analysis of 23 populations of the Brazil nut tree (Bertholletia excelsa) across the Brazilian, Peruvian, and Bolivian Amazon shows that the history and intensity of Brazil nut exploitation are major determinants of population size structure. Populations subjected to persistent levels of harvest lack juvenile trees less than 60 centimeters in diameter at breast height; only populations with a history of either light or recent exploitation contain large numbers of juvenile trees. A harvesting model confirms that intensive exploitation levels over the past century are such that juvenile recruitment is insufficient to maintain populations over the long term. Without management, intensively harvested populations will succumb to a process of senescence and demographic collapse, threatening this cornerstone of the Amazonian extractive economy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peres, Carlos A -- Baider, Claudia -- Zuidema, Pieter A -- Wadt, Lucia H O -- Kainer, Karen A -- Gomes-Silva, Daisy A P -- Salomao, Rafael P -- Simoes, Luciana L -- Franciosi, Eduardo R N -- Cornejo Valverde, Fernando -- Gribel, Rogerio -- Shepard, Glenn H Jr -- Kanashiro, Milton -- Coventry, Peter -- Yu, Douglas W -- Watkinson, Andrew R -- Freckleton, Robert P -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2112-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Ecology, Evolution and Conservation, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK. C.Peres@uea.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684819" target="_blank"〉PubMed〈/a〉
    Keywords: *Bertholletia/anatomy & histology/growth & development ; Bolivia ; Brazil ; Computer Simulation ; Conservation of Natural Resources ; *Crops, Agricultural ; *Ecosystem ; Models, Statistical ; *Nuts ; Peru ; Population Density ; Principal Component Analysis ; Regression Analysis ; Time Factors ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
    Publication Date: 2002-11-26
    Description: Mitochondrial DNA sequences isolated from ancient dog remains from Latin America and Alaska showed that native American dogs originated from multiple Old World lineages of dogs that accompanied late Pleistocene humans across the Bering Strait. One clade of dog sequences was unique to the New World, which is consistent with a period of geographic isolation. This unique clade was absent from a large sample of modern dogs, which implies that European colonists systematically discouraged the breeding of native American dogs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leonard, Jennifer A -- Wayne, Robert K -- Wheeler, Jane -- Valadez, Raul -- Guillen, Sonia -- Vila, Carles -- New York, N.Y. -- Science. 2002 Nov 22;298(5598):1613-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic Biology, Ecology and Evolution, University of California, Los Angeles, CA 90095-1606, USA. Leonard.Jennifer@NMNH.SI.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12446908" target="_blank"〉PubMed〈/a〉
    Keywords: Alaska ; Animals ; Animals, Domestic/classification/*genetics ; Bolivia ; Breeding ; DNA, Mitochondrial/*genetics ; Dogs/classification/*genetics ; Europe ; Haplotypes ; Humans ; Mexico ; North America ; Peru ; Phylogeny ; Time ; Wolves/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
    Publication Date: 2001-02-07
    Description: Long sediment cores recovered from the deep portions of Lake Titicaca are used to reconstruct the precipitation history of tropical South America for the past 25,000 years. Lake Titicaca was a deep, fresh, and continuously overflowing lake during the last glacial stage, from before 25,000 to 15,000 calibrated years before the present (cal yr B.P.), signifying that during the last glacial maximum (LGM), the Altiplano of Bolivia and Peru and much of the Amazon basin were wetter than today. The LGM in this part of the Andes is dated at 21,000 cal yr B.P., approximately coincident with the global LGM. Maximum aridity and lowest lake level occurred in the early and middle Holocene (8000 to 5500 cal yr B.P.) during a time of low summer insolation. Today, rising levels of Lake Titicaca and wet conditions in Amazonia are correlated with anomalously cold sea-surface temperatures in the northern equatorial Atlantic. Likewise, during the deglacial and Holocene periods, there were several millennial-scale wet phases on the Altiplano and in Amazonia that coincided with anomalously cold periods in the equatorial and high-latitude North Atlantic, such as the Younger Dryas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, P A -- Seltzer, G O -- Fritz, S C -- Dunbar, R B -- Grove, M J -- Tapia, P M -- Cross, S L -- Rowe, H D -- Broda, J P -- New York, N.Y. -- Science. 2001 Jan 26;291(5504):640-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Duke University, Division of Earth and Ocean Sciences, Durham, NC 27708, USA. pbaker@geo.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11158674" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atmosphere ; Bolivia ; Diatoms ; *Fresh Water ; *Geologic Sediments ; Peru ; Plankton ; *Rain ; Temperature ; Time ; *Tropical Climate
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 225 (2000), S. 141-144 
    ISSN: 1615-6110
    Keywords: Triuridaceae ; Triuridopsis intermedia ; Taxonomy ; myco-heterotrophic plants ; Bolivia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new species ofTriuridopsis (Triuridaceae) is described. It shows a number of similarities to the genusTriuris. This is the first record of the family for Bolivia.
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  • 15
    Publication Date: 2000-12-23
    Description: Amazonian rain forest-savanna boundaries are highly sensitive to climatic change and may also play an important role in rain forest speciation. However, their dynamics over millennial time scales are poorly understood. Here, we present late Quaternary pollen records from the southern margin of Amazonia, which show that the humid evergreen rain forests of eastern Bolivia have been expanding southward over the past 3000 years and that their present-day limit represents the southernmost extent of Amazonian rain forest over at least the past 50,000 years. This rain forest expansion is attributed to increased seasonal latitudinal migration of the Intertropical Convergence Zone, which can in turn be explained by Milankovitch astronomic forcing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mayle, F E -- Burbridge, R -- Killeen, T J -- New York, N.Y. -- Science. 2000 Dec 22;290(5500):2291-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Geography, University of Leicester, Leicester LE1 7RH, UK. fem1@leicester.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11125139" target="_blank"〉PubMed〈/a〉
    Keywords: Bolivia ; Climate ; *Ecosystem ; Fossils ; Geologic Sediments ; Pollen ; Rain ; Time Factors ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Human ecology 27 (1999), S. 135-165 
    ISSN: 1572-9915
    Keywords: Overlapping patchworks ; Mountain landscapes ; Bolivia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Overlapping patchworks of farm spatial units are characteristic of the mountain landscapes of Andean regions of Peru and Bolivia. Patchiness and overlap (200-600 m) are shaped by the broad tolerances of major crops, high variability/low predictability of habitat factors, multifaceted cropping rationales of cultivators including their linkages to extraregional influences, and, to varying extents, the sociospatial coordination of crop choice among farmers. Indian peasant farmers manage overlapping patchworks using a concept of farm spaces as loosely bounded. They apply a naming system to farm spatial units based primarily on topographic features in order to serve their cultural, social, and political purposes. Key processes suggest a regionalglobal model of overlapping patchworks. The model elucidates the roles of landscape flexibility and uncertainty in conservation-with-development. Implications are shown by farm units of diverse food plants and prospects for in situ conservation. Findings caution against universality of the zone model of mountain agriculture.
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  • 17
    Electronic Resource
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    International journal of salt lake research 4 (1995), S. 65-77 
    ISSN: 1573-8590
    Keywords: invertebrates ; salt lakes ; Altiplano ; Bolivia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract Based upon a short reconnaissance (March 1991), the chemicalnature and principal invertebrate fauna of seven saline lakes on the Altiplano of southern Bolivia are discussed (Lago de Uru-uru, Pastos Grandes, Lago Ramiditas, Lago Hedionda, Lago Cañapa, Laguna Colorado, pool at L. Colorado). Salinities ranged between 4.4 and 156 g L−1. The fauna was depauperate. Except at the lowest salinities (〈5 gL−1), rotifers were absent. At high salinities (〉≈50 g L−1), onlyArtemia, Boeckella poopoensis, ephydrids and a dolichopodid were present.
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  • 18
    ISSN: 1573-8590
    Keywords: Bolivia ; diatom ; Late Glacial ; paleohydrology ; paleosalinity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geography
    Notes: Abstract This study is focused on the endorheic Uyni-Coipasa Basin located in the southern Bolivian Altiplano. Stratigraphical and fossil diatom studies based on a detailed radiocarbon chrnology revealed six phases in water-level changes and paleosalinity variations. At 15,430±80 yr B.P., lacustrine conditions settled in the southern Bolivian Altiplano. A saline lake, characterized by benthic meso-metasaline species, reached ∼+4 m altitude above the present bottom of the basin. After 15,430±80 yr B.P., the level rapidly rose to ∼+27 m, as suggested by a tychoplanktonic mesosaline flora. Between ∼14,500 years and ∼13,000 years, finely lanminated sediments at ∼+32 m contained successively a dominance of epiphytic mesosaline to hypersaline species and tychoplanktonic oligosaline diatoms, indicating weak fluctuations in water-level and salinity. At 13,000 years, strong changes in the diatom flora occurred; epiphytic oligo-hypersaline diatoms were replaced by planktonic meso-polysaline species. They indicate a deep salt lake (the lake reached ∼+100 m). After ∼12,000 years, the lake level abruptly dropped, as suggested by fluviatile sediments with a benthic mesopolysaline diatom flora. The main lake was replaced by shallow saline ponds. A wet pulse occurred at ∼11,400 years, characterized by low water level (∼+7 m) and high salinity. This lacustrine phase remained until 10,400 yr B.P. These data indicate changes in Precipitation minus Evaporation (P-E). Our regional interpretations are based on a comparison with teh available data on the northern (Lake Titicaca) and southern (Lipez are) Bolivian Altiplano and on the northern Chilean Altiplano (Atacama Desert).
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  • 19
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    Biodiversity and conservation 4 (1995), S. 719-727 
    ISSN: 1572-9710
    Keywords: Bolivia ; palm ; diversity ; uses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Abstract El área de estudio está localizada en la región sur de la Provincia Iturralde, del Departmento de La Paz, al oeste de Bolivia. Está caracterizada por una mezcla de tipos de vegetación, que incluye desde bosques montanos tropicales hasta bosques de tierras bajas y sabanas. Se encuentra en un rango altitudinal de 400–1850 m, con un promedio de temperature de 24–28°C y una precipitación de 2000–5000 mm por año. La riqueza de palmas en esta región es la más alta reportada para Bolivia: 19 géneros, que significan el 70% del total de géneros de palmas registrado para Bolivia y 29 especies de palmas (34%). Tres elementos fitogeográficos están mezclados e integrados en el área: en ca. 4.5 ha se encuentran palmas de los Andes, de la Amazonia y del Centro brasileño (cerrado). Aproximadamente el 66% de las especies de palmas está concentrado en los bosques montanos entre 500–1800 m, que alcanzan su mayor límite altitudinal en el área y donde la especie más común es Iriartea deltoidea. Cerca al 55% de las especies de palmas es utilizado por la gente local—como el grupo originario Tacanas y colonos-para la obtención de material de construcción, diferentes calidades de techos, frutos para alimento y bebidas, fibras para productos artesanales, medicinas y artesanías.
    Notes: Abstract The study site is located in the southern part of the Iturralde Province, Department of La Paz, in western Bolivia. This area is generally characterized by mixed vegetation types from the tropical mountain forests as well as lowland forests and savannas. It lies in an altitudinal range of 400–1850 m, with an average temperature of 24–28°C and a rainfall of 2000–5000 mm per year. The richness in palms of this region is the highest reported for Bolivia; it comprises 19 genera, 70% of all genera known in Bolivia and 29 palm species (34%). Three main phytogeographic elements are mixed and integrated in the area; palms from the Andean, Amazonian, and Central Brazilian (Cerrado) units are found in approximately 4.5 ha. Nearly 66% of these palm species are concentrated in the mountain forests between 500–1800 m, reaching the highest altitudinal limit in this area, of which the most common species is Iriartea deltoidea. Approximately 55% of the palm species are used by local people — the original ethnic group, the Tacanas, and settlers— in order to get materials for construction, different qualities of thatching, fruit for food and beverages, fibres for artesanal products, medicines and handicrafts.
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  • 20
    ISSN: 1573-5117
    Keywords: transfer function ; ostracods ; water depth ; salinity ; Mg/Ca ratio ; Bolivia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper provides quantitative information concerning the response of ostracods to environmental variability in order to reconstruct past environments. Ostracod faunas from modern sediments of Bolivian lakes and swamps were studied. Ostracod distribution is controlled by several ecological characteristics such as lake-level and water chemistry. Statistical results indicate that three transfer functions (on water depth, Total dissolved Salts and water in Mg/Ca ratio) can be developed, from ostracod species frequencies in lacustrine sediments, with some restrictions for the two last ones.
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  • 21
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    Biodiversity and conservation 3 (1994), S. 751-756 
    ISSN: 1572-9710
    Keywords: Bolivia ; national parks ; flora
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: The protected areas of Bolivia cover 10.2% of its territory, but only 60% of this surface is considered to be of conservation value. Protected areas are unevenly distributed over the eight phyto-geographic regions of Bolivia. The Pantanal is not represented in any conservation unit. Inventories and basic information are usually lacking as plant surveys have been carried out mostly outside protected areas.
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    Hydrobiologia 267 (1993), S. 257-267 
    ISSN: 1573-5117
    Keywords: Benthos ; macroinvertebrates ; faunistical survey ; saline lakes ; Bolivia ; Sud Lipez region
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The benthic invertebrates fauna of most of the saline lakes of the Sud Lipez region (Bolivia, Altiplano) has been until now quite unstudied. Samples collected during an extensive survey of 12 lakes and two small inflow rivers allow a first list of the main macroinvertebrates living in these biotopes. The heterogeneous nature of these saline lakes with their freshwater springs and phreatic inflows offers a variety of habitats to macroinvertebrates. The benthic fauna in lakes with salinities 〉 10 g l−1 is not so low in density but includes few species and is dominated by Orthocladiinae and Podonominae larvae. In contrast, the freshwater springs and inflows are colonized by a diverse fauna, with a mixture of both freshwater and saline taxa, but dominated by Elmidae and Amphipoda. The lakes are quite isolated and, apart from some cosmopolitan organisms, their fauna can be quite distinctive.
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    Plant systematics and evolution 185 (1993), S. 17-33 
    ISSN: 1615-6110
    Keywords: Pyrenocarpous lichens ; Verrucariaceae ; Catapyrenium ; Dermatocarpon ; Catapyrenium analogicum spec. nova ; C. andicolum spec. nova ; C. chilense comb. nov. ; C. corticolum comb. nov. ; C. exaratum spec. nova ; C. lachneoides spec. nova ; C. podolepis spec. nova ; C. ruiz-lealii comb. nov. ; C. squamulosum var.argentinum comb. nov. ; Systematics ; taxonomy ; Flora of Argentina ; Bolivia ; Brasilia ; Chile ; Ecuador ; Paraguay ; Peru ; Uruguay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract 13 species of the lichen genusCatapyrenium are reported from South America. Five species (C. analogicum, C. andicolum, C. exaratum, C. lachneoides, andC. podolepis) are described as new. A key to the species known from South America is presented. Remarks on taxonomy, ecology and distribution of the species are given.
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    Hydrobiologia 241 (1992), S. 135-140 
    ISSN: 1573-5117
    Keywords: Copepoda ; Calanoida ; Centropagidae ; Bolivia ; Altiplano ; fresh water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A new species and genus of freshwater calanoid, Neoboeckella loffleri, is described from shallow, high-altitude waters. N. kinzeli (Löffler), 1955, is also included in the new genus. Neoboeckella, like Hemiboeckella Sars from Australia, is characterized inter alia by an exceptionally high degree of sexual dimorphism in size.
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    Hydrobiologia 197 (1990), S. 267-290 
    ISSN: 1573-5117
    Keywords: Bolivia ; salt lakes ; chemistry ; diatoms ; multivariate analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Diatom assemblages are described from surface sediments in thirteen salt lakes located in the southern Bolivian Altiplano. Factor analysis of correspondences and cluster analysis are used to classify the diatom assemblages. New methods are proposed to establish the qualitative and quantitative relationships between diatom floras and ecological parameters. Diatom assemblages are linked more to the ionic elements than to the salinity, pH, depth, temperature or elevation. Environmental variables are divided into three modalities which allow considerations of many different variables not under the same units.
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    Human ecology 8 (1980), S. 89-103 
    ISSN: 1572-9915
    Keywords: child growth ; Bolivia ; family size
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Previous investigations have yielded contradictory conclusions concerning the importance of the economic contribution of children to households in agricultural societies. The present study evaluates the significance of children 's economic input in rural Ancoraimes, Bolivia by using child growth as an indirect indicator of the economic value of children. Children whose households differed in size and age composition were compared on the basis of five anthropometric measurements. Children from households with many young, nonproducing children were found to be significantly smaller for their age than children from households with few nonproducing children. Absolute household size had no major effect on child growth. While young children have a negative effect on the growth of children in the household, the positive effect of children as they grow older appears to make up for this loss. In terms of child growth, children are neither a net liability nor a net asset to agricultural households in Ancoraimes.
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    Amsterdam : Elsevier
    Biochemical Systematics and Ecology 14 (1986), S. 651-655 
    ISSN: 0305-1978
    Keywords: Bolivia ; Solanaceae ; Solanium χ ajanhuiri ; Solanum Series Megistacrolobum ; domestication ; glycoalkoloids ; potato
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
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