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Articles de revues sur le sujet « Beni (Bolivie) »

Auteur : Grafiati
Publié le 4 juin 2021
Mis à jour le 4 février 2022

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1

Le Pont, François, Sergio Mollinedo, Jean Mouchet et Philippe Desjeux. « Leishmaniose en Bolivie : IV. Le chien dans les cycles des leishmanioses en Bolivie ». Memórias do Instituto Oswaldo Cruz 84, no 3 (septembre 1989) : 417–21. http://dx.doi.org/10.1590/s0074-02761989000300019.

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En Bolivie le chien domestique est impliqué dans le cycle de la leishmaniose viscérale (Leishmania (Le.) chagasi) das les Yungas (alt. 1,000-2,000 m) et aussi dans le cycle de la leishmaniose tégumetaire (Le. (V.) braziliensis) dans l'Alto Beni (alt. 400-600 m). Mais il joue un rôle différent dans les deux cycles. Il est le prencipal résevoir, peut-être l'unique de Le. (Le.) chagasi dans les Yungas, et la source de contamination de l'home. Dans l'Alto Beni, il n'est seulement qu'une victime, comme l'home, de Le. (V.) braziliensis, dont le réservoir reste inconnu, les soupçons se portant sur des mammifères sauvages.
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Tschirhart, Céline, Pascal Handschumacher, Dominique Laffly, Jean-Luc Piermay, Maurice Blanc, Selma Luna et Eric Benefice. « Inégalités de contamination par le mercure le long du rio Béni (Bolivie) : un marqueur de l'inégale gestion et pratique des espaces par les communautés (Uneven mercury contamination alongside Rio Beni, Bolivia : a marker of uneven management and spatial practices by communities) ». Bulletin de l'Association de géographes français 89, no 2 (2012) : 337–50. http://dx.doi.org/10.3406/bagf.2012.8272.

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Inverarity, Donald, Mathew Diggle, Roisin Ure, Diego Santana-Hernandez, Peter Altstadt, Timothy Mitchell et Giles Edwards. « Simultaneous Nasopharyngeal Carriage of Two Pneumococcal Multilocus Sequence Types with a Serotype 3 Phenotype ». International Journal of Microbiology 2010 (2010) : 1–4. http://dx.doi.org/10.1155/2010/765479.

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Knowledge of the epidemiology of pneumococcal disease in Bolivia is sparse, and Multilocus Sequence Typing (MLST) of isolates has not been previously possible. Beni state has until recently been a geographically isolated region of the Bolivian Amazon basin and is a region of significant poverty. During June and July 2007, we performed a pneumococcal carriage study recruiting over 600 schoolchildren in two towns in the Beni state. Here, we describe the unique identification of simultaneous nasopharyngeal carriage of two pneumococcal multilocus sequence types with a serotype 3 phenotype within a single subject.
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Lewis, Walter H. « Ethnobotany of the Chácobo Indians, Beni, Bolivia ». Economic Botany 41, no 4 (octobre 1987) : 483. http://dx.doi.org/10.1007/bf02908140.

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Le Pont, Francois, et Philippe Desjeux. « Phlébotomes de Bolive : IV. Lutzomyia (Trichophoromyia) beniensis, n.sp. (Diptera, Psychodidae) ». Memórias do Instituto Oswaldo Cruz 82, no 2 (juin 1987) : 189–92. http://dx.doi.org/10.1590/s0074-02761987000200006.

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Les auteurs décrivent le mâle et la femelle de Lutzomyia (Trichophoromyia) beniensis n.sp., capturés dans le galerie forestiére du Rio Beni (Département du Beni). L'espèce n'est pas anthropophile mais aurait des appétences omithophiles.
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Degarrod, Lydia Nakashima, et Silvia Balsano. « Ethnobotany of the Chacobo Indians, Beni, Bolivia:Ethnobotany of the Chacobo Indians, Beni, Bolivia. » Latin American Anthropology Review 3, no 1 (mars 1991) : 28. http://dx.doi.org/10.1525/jlat.1991.3.1.28.1.

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Brace, Robin C., Jon Hornbuckle et James W. Pearce-Higgins. « The avifauna of the Beni Biological Station, Bolivia ». Bird Conservation International 7, no 2 (juin 1997) : 117–59. http://dx.doi.org/10.1017/s0959270900001465.

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SummaryAn annotated compendium of all those bird species known to have occurred in the lowland “Man and Biosphere” Beni Biological Station (B.B.S.) reserve is provided. Previous checklists are reviewed, together with sightings accumulated over the 1992–1995 period during which approximately 70 new species have been added to the reserve inventory, bringing the total to 478. Occurrence across the 12 delineated habitats, relative abundance and sighting documentation are given for each species. The avifauna of the B.B.S. is mixed biogeographically; in addition to a substantial component of lowland birds widespread throughout South America, it is composed of Amazonian, cerrado and chaco elements also. Representation from the Bolivian Yungas is minimal. Significantly, no less than four threatened and 15 near-threatened species have occurred, including the little known Bolivian endemic Unicoloured Thrush Turdus haplochrous, and the enigmatic White-winged Nightjar Caprimulgus candicans, known until recently only from Emas National Park (Brazil). Short accounts are provided detailing records of all of these species. Birds of the reserve core, consisting largely of humid tropical forest formations inundated during the austral summer, appear not to be subjected currently to any serious environmental degradation, although some subsistence clearance by Chimane Indians in the northern reaches of the reserve gives some cause for concern. Of much greater import, however, are changes occurring outside the confines of the B.B.S. These include increasing urbanization immediately to the west (and associated road upgrading) and forest fragmentation to the south brought about by logging. The latter is especially worrying because linkage of the B.B.S. forest block to surrounding forest is already physically tenuous, and therefore it is imperative that future logging activities be geared to minimize isolation occurring and the damaging restriction of gene flow. Monitoring in rainforest immediately south of the reserve should become routine to warn of putative avifaunal impoverishments. Extensive surveying of the 2,500-ha El Porvenir éstancia (savanna and related forest islands) due to be assimilated shortly into the B.B.S., which constitutes less than 2% of the area under consideration, has shown that it is used by no less than three threatened and up to nine near-threatened species. In the absence of data relating to other savanna areas (c. 15%) at present, the exact status of each species at the B.B.S. remains imprecise and begs for further research to be undertaken. Unfortunately, present management of the El Porvenir savanna is not conducive to the long-term maximization of populations of these species, several of which have local strongholds in this part of Beni. We recommend that the current policy of cattle ranching adopted by this éstancia should cease or be reduced dramatically, to minimize grazing and trampling damage, and that measures should be taken to reduce incursions of fires started wilfully in neighbouring properties. The Academia Nacional de Ciencias de Bolivia, which administers the reserve, should be encouraged to safeguard and enhance the savanna complement further by ensuring that the impending ratification of El Porvenir proceeds as quickly as possible, and by purchasing additional tracts of land to the south of the present southern reserve boundary, where feasible. Such actions should not only secure the future of the biota of the savanna habitat within the B.B.S. but also should ameliorate the degree of isolation which has occurred already by preserving the “curiches” (former river beds) and forest islands which act as access corridors for forest-dwelling and other birds.
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Aldazabal, Verónica Beatriz. « identificación de los Mocetene a través de las Fuentes ». Amazonía Peruana, no 16 (14 décembre 1988) : 69–77. http://dx.doi.org/10.52980/revistaamazonaperuana.vi16.174.

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Hadley, Lynne. « Introducing ophthalmology to the El Beni region of Bolivia ». International Journal of Ophthalmic Practice 4, no 3 (juin 2013) : 143–47. http://dx.doi.org/10.12968/ijop.2013.4.3.143.

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Vargas, Julieta, et J. A. Simonetti. « Small mammals in a tropical fragmented landscape in Beni, Bolivia ». Mammalian Biology 69, no 1 (janvier 2004) : 65–69. http://dx.doi.org/10.1078/1616-5047-118.

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Navarro, Gonzalo, José Antonio Molina, Emanuela Agostinelli, Ana Lumbreras et Wanderlei Ferreira. « Towards an ecological classification of flooded savannas in Beni (Bolivia) ». Acta Botanica Gallica 157, no 2 (janvier 2010) : 265–73. http://dx.doi.org/10.1080/12538078.2010.10516204.

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López-Parra, Ana María, Miriam Tirado, Carlos Baeza, Francesc Bert, Alfonso Corella, Alejandro Pérez-Pérez, Cristina Gamba, Eva Fernández et Eduardo Arroyo-Pardo. « Genetic structure of the population of Beni department (North Bolivia) ». Forensic Science International : Genetics Supplement Series 1, no 1 (août 2008) : 348–49. http://dx.doi.org/10.1016/j.fsigss.2007.10.006.

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PADIAL, JOSÉ M., JÖRN KÖHLER et IGNACIO DE LA RIVA. « The taxonomic status of Hyla roeschmanni De Grys, 1938 (Anura : Hylidae) ». Zootaxa 1230, no 1 (12 juin 2006) : 63. http://dx.doi.org/10.11646/zootaxa.1230.1.3.

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The taxonomic status of Hyla roeschmanni De Grys, 1938 (Anura: Hylidae) is reviewed. We place Hyla roeschmanni as a junior synonym of Hypsiboas raniceps Cope, 1862. Because the holotype of Hyla roeschmanni was destroyed, we designate a neotype from Department Beni, Bolivia, and provide a description of the neotype.
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Bennett Hennessey, A., Sebastian A. Herzog, Michael Kessler et Daniel Robison. « Avifauna of the Pilón Lajas Biosphere Reserve and Communal Lands, Bolivia ». Bird Conservation International 13, no 4 (20 novembre 2003) : 319–49. http://dx.doi.org/10.1017/s0959270903003241.

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Pilón Lajas Biosphere Reserve and Communal Lands (Pilón Lajas) ranges from 300 m to 1,400 m altitude in the departments of Beni and La Paz, Bolivia. It is located in the Bolivian and Peruvian lower yungas Endemic Bird Area (054) and within one of the regions of highest conservation priority in the Neotropics. Pilón Lajas includes primary evergreen tropical lowland forest, foothill forest, and lower montane forest. Vegetation heterogeneity forms the basis for the high species richness of the area. A population of approximately 600 Chiman, Moseten and Tacana indigenous people live within the reserve. Little has been published regarding the avifauna of Pilón Lajas. Here we present the results of visual observations and tape recordings of 22 ornithological surveys, recording 502 bird species. Serranía Pilón is the most intensively studied and species-rich mountain range with 332 species, 48 of which have been recorded only in this area within Pilón Lajas. We present 26 new departmental records and evidence of breeding for 42 species. The reserve protects three globally Vulnerable and three globally Near Threatened species, four species of High Conservation Priority and 32 of Medium Conservation Priority. Together with Madidi National Park and the adjacent Bahuaja Sonene National Park in south-eastern Peru, Pilón Lajas forms a unique protected area system of more than 3.5 million ha and plays an important role in the establishment of biological corridors along the eastern Andean slope in Bolivia.
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DA FONSECA, EMANUEL MASIERO, FLÁVIA MÓL LANNA, ANATHIELLE CAROLINE SANT’ ANNA, ELVIS ALMEIDA PEREIRA, FELIPE FERREIRA DOS SANTOS, MATHEUS DE OLIVEIRA NEVES et SARAH MÂNGIA. « The advertisement call of Elachistocleis helianneae Caramaschi, 2010 (Anura : Microhylidae) ». Zootaxa 3559, no 1 (22 novembre 2012) : 58. http://dx.doi.org/10.11646/zootaxa.3559.1.6.

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The genus Elachistocleis Parker, 1927 currently comprises 13 species, not considering E. ovalis (Schneider, 1799) (see Caramaschi 2010). This genus occurs in Central America and most of South America, from Panama to Argentina, including Venezuela, Bolivia, Colombia, Guyana, Surinam, French Guiana, Paraguay, Uruguay, and Brazil (Frost 2011; Nunes-de-Almeida & Toledo 2012). Elachistocleis helianneae Caramaschi, 2010 was described from Humaitá, state of Amazonas, and occurs in northern Brazil, in the states of Amazonas, Pará and Rondônia, and in Bolivia, in the departments of Beni and Santa Cruz (Caramaschi 2010).
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GIORDANO, JOSÉ A., et EDUARDO DOMÍNGUEZ. « Thraulodes basimaculatus sp. n., a new species of mayfly from Bolivia : (Ephemeroptera : Leptophlebiidae : Atalophlebiinae) ». Zootaxa 1040, no 1 (23 août 2005) : 45. http://dx.doi.org/10.11646/zootaxa.1040.1.4.

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Thraulodes basimaculatus n. sp. is described from male imagos from Alto Beni, Bolivia. The males of this species present the unique characteristic of having most of the basal half of the fore wings and the entire membrane of the hind wings stained with brown. No other Thraulodes species has similar coloration.
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Rosso de Ferradás, Beatriz, Hugo R. Fernández et Blanca G. Rocabado. « Hidracáridos (Acari, Hydrachnidia) de la cuenca Andina del río Beni, Bolivia ». Iheringia. Série Zoologia 94, no 3 (septembre 2004) : 307–14. http://dx.doi.org/10.1590/s0073-47212004000300014.

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Berkunsky, Igor, Rosana E. Cepeda, Claudia Marinelli, M. Verónica Simoy, Gonzalo Daniele, Federico P. Kacoliris, José A. Díaz Luque, Facundo Gandoy, Rosana M. Aramburú et James D. Gilardi. « Occupancy and abundance of large macaws in the Beni savannahs, Bolivia ». Oryx 50, no 1 (17 juillet 2014) : 113–20. http://dx.doi.org/10.1017/s0030605314000258.

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AbstractMonitoring of wild populations is central to species conservation and can pose a number of challenges. To identify trends in populations of parrots, monitoring programmes that explicitly take detectability into account are needed. We assessed an occupancy model that explicitly accounted for detectability as a tool for monitoring the large macaws of Bolivia's Beni savannahs: the blue-throated Ara glaucogularis, blue-and-yellow Ara ararauna and red-and-green macaws Ara chloropterus. We also evaluated the joint presence of the three macaw species and estimated their abundance in occupied areas. We modelled occupancy and detection for the three macaw species by combining several site and visit covariates and we described their conditional occupancy. Macaws occupied two thirds of the surveyed area and at least two species occurred together in one third of this area. Probability of detection was 0.48–0.86. For each macaw species, occupancy was affected by the abundance of the other two species, the richness of cavity-nesting species, and the distance to the nearest village. We identified key priority areas for the conservation of these macaws. The flexibility of occupancy methods provides an efficient tool for monitoring macaw occupancy at the landscape level, facilitating prediction of the range of macaw species at a large number of sites, with relatively little effort. This technique could be used in other regions in which the monitoring of threatened parrot populations requires innovative approaches.
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Mollericona, José Luis, Jesús Martínez, Rolando Limachi, Pamela Carvajal et Erika Alandia-Robles. « Primer Reporte de Parásitos Intestinales enCallicebus modestusdel Departamento de Beni, Bolivia ». Neotropical Primates 20, no 1 (juin 2013) : 18–24. http://dx.doi.org/10.1896/044.020.0104.

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Arnold, Dean E., et Kenneth A. Prettol. « Field Reports : Aboriginal Earthworks near the Mouth of the Beni, Bolivia ». Journal of Field Archaeology 15, no 4 (janvier 1988) : 457–65. http://dx.doi.org/10.1179/jfa.1988.15.4.457.

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De la Quintana, Paola, Jesús A. Rivas, Federico Valdivia et Luis F. Pacheco. « Home range and habitat use of Beni anacondas (Eunectes beniensis) in Bolivia ». Amphibia-Reptilia 38, no 4 (2017) : 547–53. http://dx.doi.org/10.1163/15685381-00003124.

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Understanding of snake ecology has increased over the past two decades, but is still limited for many species. This is particularly true for the recently described Beni anaconda (Eunectes beniensis). We present the results of a radio-telemetry study of nine (3M:6F) adult E. beniensis, including home range, and habitat use. We located the snakes 242 times in wet season, and 255 in dry season. Mean wet season home range (MCP) was 25.81 ha (6.7 to 39.4 ha); while mean dry season home range was 0.29 ha (0.13 to 0.42 ha). We found no relationship between home range size and either snout-vent length, weight, or sex. Beni anacondas seem to prefer swamps, and patujusal, while avoiding forest, and rice fields. However, habitat use by individual snakes seems to vary based on the habitats available within their respective home range. Notably, rice fields were avoided by most snakes, which suggests that this type of habitat is unsuitable for anaconda management.
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Isbrücker, I. J. H., et H. Nijssen. « New Records of the Mailed Catfish Planiloricaria Cryptodon from the Upper Amazon in Peru, Brazil and Bolivia, with a Key to the Genera of the Planiloricariina ». Bijdragen tot de Dierkunde 56, no 1 (1986) : 39–46. http://dx.doi.org/10.1163/26660644-05601004.

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The mailed catfish Planiloricaria cryptodon (Isbrücker, 1971) was hitherto only known from the holotype from Río Ucayali, Peru. New material from Rio Purus (Est. Acre, Brazil) and from Río Mamoré (Prov. Beni, Bolivia) is described and compared with the holotype. One of the new specimens is illustrated. A key to the genera of the subtribe Planiloricariina (tribe Loricariini of the subfamily Loricariinae) is added.
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Fuchs, Valerie, et James Mihelcic. « Analysing appropriateness in sanitation projects in the Alto Beni region of Bolivia ». Waterlines 30, no 2 (avril 2011) : 122–34. http://dx.doi.org/10.3362/1756-3488.2011.014.

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Allenby, Richard J. « Origin of rectangular and aligned lakes in the Beni Basin of Bolivia ». Tectonophysics 145, no 1-2 (janvier 1988) : 1–20. http://dx.doi.org/10.1016/0040-1951(88)90311-3.

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PERKINS, PHILIP D. « New records and description of fifty-four new species of aquatic beetles in the genus Hydraena Kugelann from South America (Coleoptera : Hydraenidae) ». Zootaxa 3074, no 1 (28 octobre 2011) : 1. http://dx.doi.org/10.11646/zootaxa.3074.1.1.

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The South American species of the water beetle genus Hydraena Kugelann, 1794, are revised, based on the study and databasing of 2,418 specimens. New collection records are provided for 14 previously described species, and 54 new species are described. The South American fauna now comprises 82 species, only three of which are also known to be present outside of South America. Two new species groups are described, and several new species complexes are diagnosed. A neotype is designated for Hydraena paraguayensis Janssens. High resolution digital images of the holotypes of new species are presented, asare images of the primary types of 18 previously described species (online versions in color). Geographic distributions of all South American Hydraena are mapped. Male genitalia, representative female terminal abdominal segments and representative spermathecae are illustrated. New species of Hydraena are: H. altiphila (Venezuela, Rio Milla at Merida Zoo); H. amazonica (Peru, Iquitos); H. ampla (Ecuador, Quevedo, 66 km E); H. atroscintilla (Ecuador, Nono, 15.1 km NW); H. beniensis (Bolivia, 40 km E San Borja, Estacion Biologica Beni, Palm Camp at Rio Curiraba); H. boliviana (Bolivia, 40 km E San Borja, Estacion Biologica Beni, Palm Camp at Rio Curiraba); H. buscintilla (Suriname, Sipaliwini District, Camp 3, Wehepai); H. challeti (Colombia, 8.2 km NE Guarne on Hwy to Bogota); H. cherylbarrae (Venezuela, Puerto Ayacucho (40 km S), El Tobogan, Cano Coromoto); H. clinodorsa (Bolivia, Yungas Val.); H. clystera (Bolivia, Chulumani); H. cochabamba (Bolivia, Cochabamba, 105 km E Yungas, nr. Rio Carmen Mayu (Cochabamba Villa Tunari Rd.); H. concepcionica (Paraguay, Est. San Luis); H. cordispina (Peru, Parque Manu, Pakitza, Trocha Dos, c.53); H. curvosa (Brazil, Para, Rio Xingu Camp, Altamira (ca 60 km S), 1st jungle stream on trail 4); H. d-concava (Peru, Quita Calzone Rd., at km 164); H. dariensis (Colombia, Rio Atrato, Sautata); H. diffusa (Paraguay, Est. San Luis); H. duohamata (Venezuela, Cerro de la Neblina, 1.5 km S Basecamp); H. ecuadormica (Ecuador, Quevedo); H. fasciola (Ecuador, oil production platform "Villano B"); H. flagella (Paraguay, Mbocayaty, Arroyo Gervasio); H. hintoni (Brazil, Porto Velho); H. kellymilleri (Venezuela, just S. of Communidad Porvenir); H. lilianae (Argentina, Punta Lara); H. loripes (Venezuela, Stream along Rio Sipapo, S. Communidad Cano Gato); H. manabica (Ecuador, 38 km E. of Portoviejo); H. mauriciogarciai (Venezuela, Perija National Park, Tukuko, Rio Manantial); H. mintrita (Venezuela, stream nr. San Antonio); H. multiloba (Bolivia, 40 km E. San Borja, Estacion Biologica Beni, Palm Camp at Rio Curiraba); H. multispina (Peru, Quita Calzone, at km 164); H. nanoscintilla (Brazil, Cuiabá, 66 km E Serra, MT); H. neblina (Venezuela, Cerro de la Neblina); H. novacula (Peru, Buenos Aires, at km 132); H. pantanalensis (Brazil, Rio Bento Gomes (Pantanal); H. Quelle, Quellbach, Campo Allegre, II); H. peckorum (Argentina, 17 km N La Caldera, Alto de la Sierra); H. pedroaguilerai (Ecuador, Puyo, Santa Clara, Rio Llaudio Chico); H. propria (Ecuador, Paquisha, 20 km SE); H. punctilata (Brazil, Est. [Estirao] Do Ecuador); H. reverberata (Venezuela, Puerto Ayacucho (40 km S.), at Tobogan); H. scintillamima (Peru, Celendin area); H. scintillapicta (Suriname, Sipaliwini District, Camp 3, Wehepai; 2010 CI-RAP Survey); H. scintillarca (Peru, Celendin area); H. shorti (Venezuela, Perija National Park, Tukuko, Rio Manantial); H. spatula (Venezuela, NW Humocaro Bajo); H. steineri (Bolivia, 40 km E. San Borja, Estacion Biologica Beni, Palm Camp at Rio Curiraba); H. stellula (Ecuador, Santo Domingo, 79.6 km E); H. takutu (Guyana, Takutu Mountains); H. tobogan (Venezuela, Puerto Ayacucho (40 km S), at Tobogan); H. tridigita (Peru, Celendin area); H. umbolenta (Paraguay, Rio Tebicuarymi); H. unita (Brazil, Rio Bento Gomes, Pantanal); H. venezuela (Venezuela, Los Pijiguaos); H. xingu (Brazil, Rio Xingu Camp, Altamira, ca 60 km S).
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Escobar-Torrez, Katerine, Marie-Pierre Ledru, Teresa Ortuño, Umberto Lombardo et Jean-François Renno. « Landscape changes in the southern Amazonian foreland basin during the Holocene inferred from Lake Ginebra, Beni, Bolivia ». Quaternary Research 94 (26 décembre 2019) : 46–60. http://dx.doi.org/10.1017/qua.2019.72.

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AbstractOur study is located in northern Beni and aims to improve knowledge on regional landscape changes from the last 8600 years, based on pollen and charcoal analyses from a lacustrine sediment core from Lake Ginebra. Our results showed that gallery forest and lacustrine sediment were observed from 8645 until 3360 cal yr BP. After a change from a lacustrine to a swamp environment at 1700 cal yr BP, the Cerrados and the Mauritia swamp became installed 1000 years ago on our study site. The environmental changes we observed over the last 8600 years in the Ginebra record reinforce the evidence of a west–east climatic gradient with the persistence of rain forest throughout the Holocene on the western side and the presence of the Cerrados until the late Holocene on the eastern side. Moreover, the persistence of a wet forest in the early to mid-Holocene in southwestern Amazonia highlighted some local responses to the global trend that could be related to the distance from the Andes; while in the late Holocene, both an increase in insolation and strengthening of the South American summer monsoon system enabled the installation of a seasonal flooded savanna in northern Beni and of the rain forest in eastern Beni.
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Plotzki, A., J. H. May et H. Veit. « Review of past and recent fluvial dynamics in the Beni lowlands, NE Bolivia ». Geographica Helvetica 66, no 3 (18 décembre 2012) : 164–72. http://dx.doi.org/10.5194/gh-66-164-2011.

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Jacobi, Johanna, Monika Schneider, Maria Pillco Mariscal, Stephanie Huber, Simon Weidmann, Patrick Bottazzi et Stephan Rist. « Farm Resilience in Organic and Nonorganic Cocoa Farming Systems in Alto Beni, Bolivia ». Agroecology and Sustainable Food Systems 39, no 7 (14 avril 2015) : 798–823. http://dx.doi.org/10.1080/21683565.2015.1039158.

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Matias, A., J. De la Riva, E. Martinez, M. Torrez et J. P. Dujardin. « Domiciliation process of Rhodnius stali (Hemiptera : Reduviidae) in Alto Beni, La Paz, Bolivia ». Tropical Medicine and International Health 8, no 3 (mars 2003) : 264–68. http://dx.doi.org/10.1046/j.1365-3156.2003.01021.x.

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Peacock, Jo, Christopher M. Tonra, Johnathan King et G. Matt Davies. « Restoration of gallery forest patches improves recruitment of motacú palms (Attalea princeps) while diversifying and increasing wildlife populations ». PLOS ONE 16, no 4 (29 avril 2021) : e0250183. http://dx.doi.org/10.1371/journal.pone.0250183.

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Globally, forest-savanna mosaic landscapes are of significant conservation importance but have been widely impacted by human land-use. We studied how restoration, through cessation of long-term cattle grazing impacts (i) forest regeneration; (ii) forest understory structure and composition; and (iii) populations and diversity of large mammals and nocturnal birds, within naturally patchy gallery forests in the Beni Savannas of Bolivia. Comparing grazed and restored sites, we assessed the abundance and composition of tree functional types at different life stages (seedlings, saplings and adults), with focus on the region’s key palm species Attalea princeps (motacú). Additionally, we surveyed habitat structure and composition in the shrub and ground-layer, and monitored occurrence and encounter rates of large mammals and nocturnal birds along dusk and evening transects. We found evidence of lower recruitment of motacú palms on the grazed site and lower potential for natural motacú regeneration. Principal Components Analysis revealed forests on grazed sites had simpler, more open shrub-layers and altered ground-layer structure and composition including increased bare ground. Mammal species richness was greater on the restored site, and there were more declining, globally threatened and site-unique species. Species richness was similar for nocturnal birds within forests on both the grazed and restored site, but nearly all species tended to be encountered more frequently on the restored site. Our results suggest cattle negatively impact forest regeneration and alter the structure and composition of the shrub and ground layer with potential consequences for the diversity and abundance of wildlife. Our study represents one of only a handful completed in the Beni region of Bolivia to date. The Beni is currently under pressure from widespread, largely unregulated cattle ranching. Our results thus provide vital evidence to support development of restoration and conservation policy, and its integration with rangeland management in this threatened and critically understudied region.
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Grim, Tomáš, et Radim Šumbera. « A New Record of the Endangered White-winged Nightjar (Eleothreptus candicans) from Beni, Bolivia ». Wilson Journal of Ornithology 118, no 1 (mars 2006) : 109–12. http://dx.doi.org/10.1676/04-129.1.

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Garming, Hildegard, Susy Guardia, Luis Pocasangre et Charles Staver. « Farmers' community enterprise for marketing organic bananas from Alto Beni, Bolivia : Impacts and threats ». Enterprise Development and Microfinance 22, no 3 (septembre 2011) : 210–24. http://dx.doi.org/10.3362/1755-1986.2011.024.

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Inverarity, D., M. Diggle, R. Ure, P. Johnson, P. Altstadt, T. Mitchell, G. Edwards et D. Santana-Hernandez. « Molecular epidemiology and genetic diversity of pneumococcal carriage among children in Beni State, Bolivia ». Transactions of the Royal Society of Tropical Medicine and Hygiene 105, no 8 (août 2011) : 445–51. http://dx.doi.org/10.1016/j.trstmh.2011.04.013.

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GULLISON, R. E., S. N. PANFIL, J. J. STROUSE et S. P. HUBBELL. « Ecology and management of mahogany (Swietenia macrophylla King) in the Chimanes Forest, Beni, Bolivia ». Botanical Journal of the Linnean Society 122, no 1 (septembre 1996) : 9–34. http://dx.doi.org/10.1111/j.1095-8339.1996.tb02060.x.

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Büntge, Anna B. S., et Lennart W. Pyritz. « Sympatric Occurrence ofAlouatta carayaandAlouatta saraat the Río Yacuma in the Beni Department, Northern Bolivia ». Neotropical Primates 14, no 2 (août 2007) : 82–83. http://dx.doi.org/10.1896/044.014.0208.

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Walker, John H. « Ceramic assemblages and landscape in the mid-1st millennium Llanos de Mojos, Beni, Bolivia ». Journal of Field Archaeology 36, no 2 (1 mai 2011) : 119–31. http://dx.doi.org/10.1179/009346911x12991472411402.

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Justi, S. A., F. Noireau, M. R. Cortez et F. A. Monteiro. « Infestation of peridomesticAttalea phaleratapalms byRhodnius stali, a vector ofTrypanosoma cruziin the Alto Beni, Bolivia ». Tropical Medicine & ; International Health 15, no 6 (4 avril 2010) : 727–32. http://dx.doi.org/10.1111/j.1365-3156.2010.02527.x.

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Ott, Ricardo, Everton Nei Lopes Rodrigues et Antonio Domingos Brescovit. « Seven new species of Latonigena (Araneae, Gnaphosidae) from South America ». Iheringia. Série Zoologia 102, no 2 (juin 2012) : 227–38. http://dx.doi.org/10.1590/s0073-47212012000200016.

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In this paper seven new species of Latonigena Simon, 1893 are described, including the first descriptions of males of this genus. Latonigena beni sp. nov. is described from Bolivia and Brazil and six species are described exclusively from Brazil: L. colombo sp. nov. from Paraná; L. lami sp. nov. from Paraná and Rio Grande do Sul; L. santana sp. nov., L. sapiranga sp. nov. and L. taim sp. nov. from Rio Grande do Sul; L. turvo sp. nov. from Tocantins, Santa Catarina and Rio Grande do Sul. Latonigena africana Tucker, 1923 is transferred to Trichothyse Tucker, 1923 with basis on the morphological characters.
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Le Pont, F., T. Caillard, M. Tibayrenc et P. Desjeux. « Bolivian phlebotomines. II Psychodopygus Yucumensis n.sp., a new man-biting phlebotomine sandfly from subandean region (Diptera, Psychodidae) ». Memórias do Instituto Oswaldo Cruz 81, no 1 (mars 1986) : 79–85. http://dx.doi.org/10.1590/s0074-02761986000100011.

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Psychodopygus yucumensis n.sp., a new species of Phlebotomine sandfly belonging in genus Psychodopygus mang., is described from specimens collected from human bait, in Beni dept., Bolivia. The male is characteristic of the series panamensis, but the female, closely related to P. carrerai carrerai, can be confused with this species ("cryptic species"). Isozyme characterization can determine any specimen of either species, while morphometric analysis shows statistical differences between the two species. P. yucumensis is strongly anthropophilic. A Leishmania braziliensis braziliensis stock was isolated from this new species, indicating that it is one of the vectors of mucocutaneous Leishmaniasis in the lowland subandean area.
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SOARES, MATHEUS M. M., et ROSALY ALE-ROCHA. « New records of Stenopygium Becker (Diptera : Dolichopodidae) from the Neotropical Region, and a key to species ». Zootaxa 4868, no 1 (23 octobre 2020) : 129–34. http://dx.doi.org/10.11646/zootaxa.4868.1.7.

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The Neotropical genus Stenopygium Becker (Diptera: Dolichopodidae: Dolichopodinae) was erected to include S. nubeculum Becker, 1922 (described from Bolivia and Peru) and remained monotypic until Brooks (2005) transferred Pelastoneurus punctipennis (Say, 1829) to the genus. Diagnostic characters of Stenopygium include clypeus bulging and subequal in height to face (Figs 1, 9), vein M1 beyond crossvein dm-m with weak anterior bend before middle (Figs 4, 12), hypopygium subtriangular (Figs 6, 14) and phallus strongly wrinkled (Brooks 2005, figs 28B, 29A–B). Up to now, the genus was recorded from Mexico, Costa Rica, Peru and Bolivia (Yang et al. 2006).
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MENDIETA-AGUILAR, Geovanna, Luis F. PACHECO et Alejandra I. ROLDÁN. « Dispersión de semillas de Mauritia flexuosa (Arecaceae) por frugívoros terrestres en Laguna Azul, Beni, Bolivia ». Acta Amazonica 45, no 1 (mars 2015) : 45–56. http://dx.doi.org/10.1590/1809-4392201400283.

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El acopio esparcido ha recibido singular atención en las últimas décadas, y muchos estudios se han centrado en semillas de palmeras dispersadas por Dasyprocta. Nuestro objetivo fue identificar las especies consumidoras de frutos de Mauritia flexuosa, evaluar la importancia relativa de esas especies y el destino de las semillas dispersadas. Utilizamos experimentos de campo para evaluar el destino de las semillas removidas por frugívoros, en la Reserva de la Biosfera Pilón Lajas, Bolivia. Predijimos que las semillas enterradas por Dasyprocta tendrían menor mortalidad que las no enterradas. Colocamos 6-16 estaciones de frutos, con 15-50 frutos cada una, en cinco periodos de muestreo cubriendo un año. Los principales dispersores de M. flexuosa fueron D. punctata y Cuniculus paca, que transportan las semillas un máximo de 12.63 m y 14.1 m, respectivamente. Los dispersores removieron 7.5% de los frutos de las estaciones. Todas las semillas dispersadas en cuatro de los muestreos fueron depredadas o se pudrieron; solamente el 0.5% de las semillas dispersadas en febrero germinaron. De las semillas colocadas sobre y debajo del suelo en época seca y húmeda, solamente sobrevivieron aquellas enterradas en la época húmeda; el resto fueron depredadas o se pudrieron. Ninguna de las 84 semillas removidas por D. punctata fue enterrada, lo cual difiere de casi todos los reportes sobre el comportamiento de Dasyprocta. Discutimos este resultado en relación al posible efecto de la humedad del suelo y el tamaño de las semillas, y postulamos que la elevada abundancia del recurso haría innecesario acopiar semillas bajo suelo
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Notarnicola, Juliana, F. Agustín Jiménez et Scott L. Gardner. « A NEW SPECIES OF DIPETALONEMA (FILARIOIDEA : ONCHOCERCIDAE) FROM ATELES CHAMEK FROM THE BENI OF BOLIVIA ». Journal of Parasitology 93, no 3 (juin 2007) : 661–67. http://dx.doi.org/10.1645/ge-962r1.1.

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Walker, John H. « Pre-Columbian Ring Ditches along the Yacuma and Rapulo Rivers, Beni, Bolivia : A Preliminary Review ». Journal of Field Archaeology 33, no 4 (janvier 2008) : 413–27. http://dx.doi.org/10.1179/009346908791071141.

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H. Walker, John. « Reflections on archaeology, poverty and tourism in the Bolivian Amazon ». Worldwide Hospitality and Tourism Themes 6, no 3 (3 juin 2014) : 215–28. http://dx.doi.org/10.1108/whatt-03-2014-0015.

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Purpose – This paper aims to argue that one of the ways of enabling tourism to become sustainable is for archaeologists to relate archaeology to poverty, while being aware of the process of heritage production. It proposes that one way to engage with issues of poverty is to talk to people who are trying to get out of poverty. Many archaeologists are already at work using a similar perspective not just to integrate international scholarship with local interests, but to hand over authority relating to aspects of research to the local community. Design/methodology/approach – This paper reviews literature about and archaeological study in the Bolivian Amazon region. Here, all-weather roads are scarce and unreliable. Scholars are beginning to document and analyze the archaeological record of this region, and as lowland Bolivians develop tourism, the article considers how archaeology could help connect the Bolivian Amazon to an international audience. Findings – An anthropological perspective suggests that projects in which local people are connected to decision-making will have long-term effects. Without such integration, cycles of boom and bust are likely to repeat. The article cites two examples: the inscription of the Ichapekene Piesta Moxos on the UNESCO Representative List of Intangible Cultural Heritage of Humanity, and the Museo Yacuma, in Santa Ana del Yacuma. Community archaeology, in which the community makes decisions about how research will proceed, is a developing trend, which stands to benefit local people, archaeologists and tourists. Originality/value – The paper outlines how community archaeology in the Beni region of Bolivia can be built on a strong foundation: first, by a community of Benianos that are ready, willing and able to be a part of both the development of tourism and of archaeology and second, via its long and varied archaeological record, providing plenty of material for the development of heritage. The question is whether a community archaeology can generate and sustain archaeological heritage as part of a tourism industry?
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Condori, Ronald, Teddy Ibáñez, Ramiro Hernández, Ramiro Ochoa et Manuel Gregorio Loza-Murguia. « Frecuencia relativa de Boophilus microplus (Canestrini 1888) & ; Amblyomma cajennense (Fabricius 1787) (Acari : Ixodida) en ganado bovino, en la zona de colonización de Yucumo, Provincia Gral. José Ballivián Departamento del Beni, Bolivia ». Journal of the Selva Andina Research Society 1, no 1 (1 octobre 2010) : 13–22. http://dx.doi.org/10.36610/j.jsars.2010.1001000013.

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El estudio sobre la abundancia relativa de Boophilus microplus & Amblyomma cajennense se realizó en 32 colonias, distribuidas en dos zonas ecológicas (ZE) y dos regímenes pluviales de la zona de Yucumo, Beni Bolivia. Se efectuaron visitas cada veinte día para recolectar acarinos de la población de ganado bovino utilizando el método del derribe. El número total de acarinos se consideraba, el total de ectoparásitos muestreados de cada animal y se sumaban todos los animales muestreados de cada colonia, el valor de cada animal se lo dividía entre el total de los animales de cada colonia para determinar el promedio de garrapatas por colonia. Se detectó B. microplus en todas las colonias, a lo largo de los meses de mayo a octubre (2008). Se hicieron análisis estadísticos de comparación de medias y no se encontraron diferencias entre ZE, colonias para Boophilus microplus, en tanto Amblyomma cajennense se la encontró en asociación con Boophilus microplus en la pradera. Pese a que no se encontraron diferencias entre sistemas de producción, se hace énfasis en que la frecuencia relativa de infestación del ganado en las ZE estudiadas es muy similar a excepción de la colonia 6 de agosto que corresponde a la ZE serranía que presenta valores elevados de acarinos por animal. Se recomienda la necesidad de desarrollar trabajos que permitan conocer la diversidad de este importante grupo de artrópodos en la zona de colonización de Yucumo, provincia Gral. José Ballivián, Beni, Bolivia, teniendo en cuenta la posibilidad que estas provoquen problemas de salud publica no solo en animales, sino que lleguen a afectar al ser humano.
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Jekeli, Christopher, Hyo Jin Yang et Kevin Ahlgren. « Using isostatic gravity anomalies from spherical harmonic models and elastic plate compensation to interpret the lithosphere of the Bolivian Andes ». GEOPHYSICS 78, no 3 (1 mai 2013) : G41—G53. http://dx.doi.org/10.1190/geo2012-0378.1.

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We have determined for the Bolivian Andes that the new global gravity models derived from the Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite mission may be used directly to study lithospheric structure. Toward this end, we have formulated Bouguer and isostatic gravity anomalies in spherical approximation, rather than in the usual planar approach, using spherical harmonic series consistent with the satellite-derived gravitational models. From the approximate equivalency of topographic masses and surface density layers using the Helmert condensation method we further derived and used isotropic transfer relations between the spherical spectra of topographic loads and elastic spherical shell deflections, where the Airy isostatic compensation is the special case of no flexural rigidity. A numerical comparison of these spherical harmonic models to conventional three-dimensional modeling based on topographic data and newly acquired surface gravity data in Bolivia confirmed their suitability for lithospheric interpretation. Specifically, the relatively high and uniform resolution of the satellite gravitational model (better than 83 km) produces detailed maps of the isostatic anomaly that clearly delineate the flexure of the Brazilian shield that is thrust under the Sub-Andes. Inferred values of the thickness of Airy-type roots and the flexural rigidity of the elastic lithosphere agree reasonably with published results based on seismic and surface gravity data. In addition, a local minimum in the flexural rigidity is evident at the sharp bend of the eastern margins of the Sub-Andes in Bolivia. This feature is consistent with earlier theories for counter rotations about a vertical axis at this minimum, associated with the confluence of the subducted Nazca plate and the Brazilian craton. The GOCE model thus generates high-resolution isostatic anomaly maps that offer additional structural detail not seen as clearly from previous seismic and gravity investigations in this region.
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Bertaco, Vinicius A., et Luiz R. Malabarba. « A review of the Cis-Andean species of Hemibrycon Günther (Teleostei : Characiformes : Characidae : Stevardiinae), with description of two new species ». Neotropical Ichthyology 8, no 4 (2010) : 737–70. http://dx.doi.org/10.1590/s1679-62252010000400005.

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The species of Hemibrycon occurring in the east of the Andean Cordilleras are reviewed based on their type series and additional specimens. Nine species are redescribed: H. beni from río Beni basin, Bolivia; H. helleri from the upper rio Ucayali, Peru; H. huambonicus from the ríos Huallaga and Marañon basins, Peru; H. jeslkii from the upper portions of ríos Marañon, Ucayali and Madeira basins, Bolivia, Brazil, and Peru; H. metae from río Orinoco basin, Colombia and Venezuela, and Caribbean coastal basins of Venezuela; H. polyodon (type species) from río Pastaza basin, Ecuador; H. surinamensis from coastal basins of French Guiana and Suriname, and from lower rios Tapajós, Tocantins and Xingu basins, Brazil; H. taeniurus from river basins from Trinidad Island, Trinidad and Tobago, and H. tridens from upper río Ucayali basin, Peru. Two new species are described: H. inambari from the upper río Madre de Dios basin, Peru and H. mikrostiktos from río Ucayali basin, Peru. These species are distinguished among themselves mainly by the color pattern, and meristic characters. The distribution area of the genus is enlarged reaching the lower Tapajós, Tocantins and Xingu river basins, Brazil, with the first record of the occurrence of H. surinamensis in this country. A new description and diagnosis is provided for the type species of the genus, regardless its recent redescription. The type series of H. helleri that was previously considered dubious is found and described. Hemibrycon coxeyi and H. pautensis are considered junior synonyms of H. polyodon. Tetragonopterus (Hemibrycon) trinitatis, previously considered species inquirenda in Characidae, and Hemibrycon guppyi are junior synonyms of H. taeniurus. Hemibrycon orcesi is transferred to Boehlkea. A taxonomic key for the species of the genus to the east of the Andean Cordilleras is presented.
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Jacobi, Johanna, Monika Schneider, Patrick Bottazzi, Maria Pillco, Patricia Calizaya et Stephan Rist. « Agroecosystem resilience and farmers’ perceptions of climate change impacts on cocoa farms in Alto Beni, Bolivia ». Renewable Agriculture and Food Systems 30, no 2 (19 août 2013) : 170–83. http://dx.doi.org/10.1017/s174217051300029x.

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AbstractCocoa-based small-scale agriculture is the most important source of income for most farming families in the region of Alto Beni in the sub-humid foothills of the Andes. Cocoa is grown in cultivation systems of varying ecological complexity. The plantations are highly susceptible to climate change impacts. Local cocoa producers mention heat waves, droughts, floods and plant diseases as the main impacts affecting plants and working conditions, and they associate these impacts with global climate change. From a sustainable regional development point of view, cocoa farms need to become more resilient in order to cope with the climate change related effects that are putting cocoa-based livelihoods at risk. This study assesses agroecosystem resilience under three different cocoa cultivation systems (successional agroforestry, simple agroforestry and common practice monocultures). In a first step, farmers’ perceptions of climate change impacts were assessed and eight indicators of agroecological resilience were derived in a transdisciplinary process (focus groups and workshop) based on farmers’ and scientists’ knowledge. These indicators (soil organic matter, depth of Ah horizon, soil bulk density, tree species diversity, crop varieties diversity, ant species diversity, cocoa yields and infestation of cocoa trees with Moniliophthora perniciosa) were then surveyed on 15 cocoa farms and compared for the three different cultivation systems. Parts of the socio-economic aspects of resilience were covered by evaluating the role of cocoa cooperatives and organic certification in transitioning to more resilient cocoa farms (interviews with 15 cocoa farmers combined with five expert interviews). Agroecosystem resilience was higher under the two agroforestry systems than under common practice monoculture, especially under successional agroforestry. Both agroforestry systems achieved higher cocoa yields than common practice monoculture due to agroforestry farmers’ enhanced knowledge regarding cocoa cultivation. Knowledge sharing was promoted by local organizations facilitating organic certification. These organizations were thus found to enhance the social process of farmers’ integration into cooperatives and their reorientation toward organic principles and diversified agroforestry.
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Corella, Alfons, Francesc Bert, Alejandro Pérez-Pérez, Manel Gené et Daniel Turbón. « HUMTH01, HUMVWA31A, HUMCSF1PO and HUMTPOX polymorphisms in Amerindian populations living in the Beni Department of Bolivia ». Annals of Human Biology 35, no 5 (janvier 2008) : 556–64. http://dx.doi.org/10.1080/03014460802294243.

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ENTIAUSPE-NETO, OMAR M., et DANIEL LOEBMANN. « Taxonomic status of Chironius laurenti Dixon, Wiest & ; Cei, 1993 and of the long-forgotten Chironius dixoni Wiest, 1978 (Squamata, Serpentes) ». Bionomina 16, no 1 (2 décembre 2019) : 83–87. http://dx.doi.org/10.11646/bionomina.16.1.4.

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The neotropical colubrid snake genus Chironius Fitzinger, 1826 comprises 22 species, distributed from Central America, at Honduras, to South America, in Uruguay and Argentina (Dixon et al. 1993; Hamdan & Fernandes 2015); this genus is diagnosed by the presence of 10–12 dorsal scale rows and hemipenis with single lobe and sulcus, centrally spinous, distally calyculate, acapitate and with a proximal naked pocket (Dixon et al. 1993). Chironius laurenti Dixon, Wiest & Cei, 1993 is a large sized colubrid, distributed in Bolivia, at departments of Beni, Cochabamba and Santa Cruz, and in Brazil, in Acre, Mato Grosso and Mato Grosso do Sul (Dixon et al. 1993; Miranda et al. 2014; Ferreira et al. 2017).
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