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Registros recuperados: 10
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Actividad biológica en bacterias heterótrofas procedentes de "Bahía de La Habana". OceanDocs
Ortiz, E.; Morales, M.; Cartaya, Y.; Miranda, A.; Fonseca, E.; Paneque, K.; Caballero, V.; Martínez, C.; Díaz, Y..
En el presente trabajo se evaluó la actividad biológica de 87 aislamientos de bacterias heterótrofas procedentes de la "Bahía de La Habana". El espectro de potencialidades mostró que el 29,9% de los mismos presentó actividad antimicrobiana frente a las cepas indicadoras empleadas. Un 63,2% presentó actividad caseinasa, el 44,8% mostró su actividad hemolítica y el 83,4% fue capaz de excretar compuestos con actividad superficial. Respecto a los mecanismos degradativos, el 57,5% de ellas, mostró preferencia por el petróleo como fuente de carbono y el 42,5% por los compuestos organoclorados. Se evidenció la amplia gama de actividades con Bioactividad de bacterias heterótrofas aplicación biotecnológica que poseen las bacterias heterótrofas aisladas de éste...
Tipo: Preprint Palavras-chave: Biological collections; Geographical isolation; Bacteria; Heterotrophic organisms; Bacteria; Http://aims.fao.org/aos/agrovoc/c_765.
Ano: 2004 URL: http://hdl.handle.net/1834/3655
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Actividad desarrollada por la sección de colecciones de cultivos microbianos y otros materiales biológicos de la ATAC. OceanDocs
Morales, M.; Iglesias, E.; Ortiz, E..
Las colecciones microbianas son consideradas como centros de recursos genéticos que custodian dicho germoplasma, entre sus funciones principales se encuentra la conservación de los microorganismos, lo que permite garantizar el suministro de cepas requerido para acometer actividades docentes, investigativas o productivas. En Cuba, tales curadores, se aglutinaron en el Grupo de Colecciones Microbianas, que durante el 2002 se constituyó como Sección de Colecciones Microbianas y otros Materiales Biológicos de la ATAC, alcanzando en la actualidad más de 100 asociados, que participan en reuniones trimestrales, cursos, adiestramientos y talleres, donde son discutidos los resultados del trabajo científico-técnico desarrollado en sus colecciones. Se comentan de...
Tipo: Journal Contribution Palavras-chave: Biological collections; Genetics; Genetics; Http://aims.fao.org/aos/agrovoc/c_3222.
Ano: 2007 URL: http://hdl.handle.net/1834/3652
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Actualisation des donnees sur l'ecologie, la biogeographie et la phylogenie des Ampeliscidae (crustaces-amphipodes) Atlantiques apres la revision des collections d'E. Chevreux ArchiMer
Bellan-santini, D; Dauvin, J.
In the world, the Ampelisca genus is constituted by more than 140 species, which are found between 0 to 4000 m depth. Phylogeny, biology and ecology are the most important interest in this genus. The present analysis of new and older collections (E. Chevreux) have permitted to describe 11 new species. 41 species are listed in the north-eastern Atlantic fauna. These are different arguments to think that Ampelisca groups was actually in speciation. Two groups issued from a phenetic analysis are discriminated by their apomorphic levels. More than of the third are endemic species. 21 species are present only in one of the five biogeographic region. 23 species are limited to the continental shelf, 34 live up to the first 1000 meters and 4 are bathyal. 2 species...
Tipo: Text Palavras-chave: Ampeliscidae; Malacostraca; Biological collections; Phylogeny; Biogeography.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/acte-1403.pdf
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Brazilian herbaria: an overview Acta Botanica
Gasper,André Luís de; Stehmann,João Renato; Roque,Nádia; Bigio,Narcísio C.; Sartori,Ângela Lúcia Bagnatori; Grittz,Guilherme Salgado.
ABSTRACT Herbaria represent irreplaceable repositories of biodiversity and are used to answer questions about conservation, ecology, systematics, and other sciences. In this sense, we characterize the infrastructure, human resources, and idiosyncrasies of Brazilian herbaria. To achieve this goal, curators were sent a structured and standardized questionnaire to gather information about herbaria. The Brazilian Herbaria Network listed 216 active herbaria in the year 2018, of which 139 answered the questionnaire. These herbaria hold 6,741,469 samples in their collections and more than 39,000 type samples. Most herbaria are in federal universities (40.28 %). Only 24 % of the curators considered that their herbarium is valued by their institutions and 52 %...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Biological collections; Natural history; Public policies.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200352
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COLOMBIAN FROZEN BIODIVERSITY: 16 YEARS OF THE TISSUE COLLECTION OF THE HUMBOLDT INSTITUTE Acta biol.Colomb.
ARBELÁEZ-CORTÉS,Enrique; TORRES,María Fernanda; LÓPEZ-ÁLVAREZ,Diana; PALACIO-MEJÍA,Juan Diego; MENDOZA,Ángela María; MEDINA,Claudia Alejandra.
Collections of frozen tissue samples stand as keystone sources of molecular information to construct biodiversity knowledge, and are particularly challenged if they focus on megadiverse countries. In 1998 the Humboldt Institute (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt) began a tissue collection of Colombian biodiversity (IAvH-CT) and the aim of this work is to present a diagnostic and an historical perspective for that collection, constructed by compiling information and experiences on its management as well as by organizing and curating the information of each catalogued sample. After 16 years, the IAvH-CT harbors 16,469 samples, which represent around 2530 species from 1289 genera, and 323 families of the Colombian...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological collections; Biorepository; Birds; Cryoconservation; Neotropics; Plants.
Ano: 2015 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000200016
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La evolución en acción: el significado de las agrupaciones animales OceanDocs
Baisre, J. A..
En el mar, un grupo variado de anima­ les se asocian, a veces de forma casi per­ manente yen ocasiones solamente duran­ te períodos muy específicos. Que ustedes conozcan un poco más acerca del signifi­ cado e importancia de las agrupaciones en el mar es el objetivo de este artículo.
Tipo: Journal Contribution Palavras-chave: Evolution (organisms); Endemic species; Fishes; Aquatic natural resources; Animals (aquatic); Marine biology; Biological collections; Coastal fisheries.
Ano: 2007 URL: http://hdl.handle.net/1834/5058
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Marine biodiversity in Venezuela: Status and perspectives Gayana
Miloslavich,Patricia; Klein,Eduardo; Yerena,Edgard; Martin,Alberto.
Venezuela is among the ten countries with the highest biodiversity in the world, both in the terrestrial and the marine environment. Due to its biogeographical position, Venezuelan marine flora and fauna are composed of species from very different marine bioregions such as the Caribbean and the Orinoco Delta. The ecosystems in the Caribbean have received considerable attention but now, due to the tremendous impact of human activities such as tourism, over-exploitation of marine resources, physical alteration, the oil industry, and pollution, these environments are under great risk and their biodiversity highly threatened. The most representative ecosystems of this region include sandy beaches, rocky shores, seagrass beds, coral reefs, soft bottom...
Tipo: Journal article Palavras-chave: Venezuela; Marine biodiversity; Conservation; Protected areas; Biological collections.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382003000200012
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Myxomycetes collection preserved in the herbarium of the Federal University of Roraima (Brazil) Acta Amazonica
Cavalcanti,Laise de Holanda; Cavalcanti,Eneida Jucene dos Santos; Barbosa,David Itallo; Agra,Leandro de Almeida Neves Nepomuceno; Bezerra,Andrea Carla Caldas; Costa,Antônia Aurelice Aurélio.
First records of myxomycetes in the North region of Brazil go back to the 19th century. Nevertheless, the myxobiota of this region is still largely unexplored, with only 42 species recorded, distributed in 20 genera and seven families. The objectives of this paper were to characterize the Myxomycetes collection of the Herbarium of the Federal University of Roraima (UFRR) and to add new records for the myxobiota of this State. The collection holds specimens collected in fragments of Open Ombrophilous Forest, Seasonal Semi-deciduous Forest, Riparian Forest, deforested areas and urban home gardens in the state of Roraima. The 157 exsiccates were analyzed and identified or redetermined based on identification keys, descriptions and illustrations. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian Amazonia; Biodiversity; Biological collections; Neotropics.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100006
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ON BIRDS OF SANTANDER-BIO EXPEDITIONS, QUANTIFYING THE COST OF COLLECTING VOUCHER SPECIMENS IN COLOMBIA Acta biol.Colomb.
ARBELÁEZ-CORTÉS,Enrique; VILLAMIZAR-ESCALANTE,Daniela; RONDÓN-GONZÁLEZ,Fernando.
ABSTRACT Several scientific reasons support continuing bird collection in Colombia, a megadiverse country with modest science financing. Despite the recognized value of biological collections for the rigorous study of biodiversity, there is scarce information on the monetary costs of specimens. We present results for three expeditions conducted in Santander (municipalities of Cimitarra, El Carmen de Chucurí, and Santa Barbara), Colombia, during 2018 to collect bird voucher specimens, quantifying the costs of obtaining such material. After a sampling effort of 1290 mist net hours and occasional collection using an airgun, we collected 300 bird voucher specimens, representing 117 species from 30 families. Such collection represents one of the largest series...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Biological collections; Eastern Andes; Middle Magdalena valley; Ornithology.
Ano: 2020 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000100037
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VALUING BOTANIC COLLECTIONS: A COMBINED TRAVEL-COST AND CONTINGENT VALUATION SURVEY IN AUSTRALIA AgEcon
Mwebaze, Paul; Bennett, Jeffrey W..
The economic value of biological collections in three major botanic gardens in Australia was estimated using the Travel-Cost (TC) and Contingent Valuation (CV) methods. The study used truncated count data models to control for the non-negative integer and truncation properties of the number of visits to botanic gardens in Canberra, Melbourne and Sydney. We estimate consumer surplus values of approximately $34 per trip to each botanic garden, resulting in the total social welfare estimate of approximately $96.9 million in 2010 Australian dollars. This result is relatively high compared to similar studies conducted in other countries. Willingness to pay (WTP) for entry fees and or higher parking charges for access to botanic gardens were also investigated....
Tipo: Conference Paper or Presentation Palavras-chave: Economic value; Botanic gardens; Biological collections; Willingness to pay; Travel-cost method; Contingent valuation method.; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/100688
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