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| Registros recuperados: 10 | |
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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| Registros recuperados: 10 | |
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