Results 41 to 50 of about 892,541 (314)

Mulher Negra Brasileira um retrato

open access: yesRevista Estudos Feministas, 1995
resumo
Rebecca Reichmann
doaj  

The potential of seedbank digital information in plant conservation

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Seedbanks are vital for biodiversity conservation, but their potential remains underutilised due to a limited understanding of the intraspecific genetic diversity they hold. By leveraging digitised data associated with seedbank collections, such as sampling locations, number of maternal plants and seed traits, we can attempt the estimation of genetic ...
Roberta Gargiulo   +23 more
wiley   +1 more source

Número de cromosomas de Alnus acuminata H.B. K. Chromosomes number of specie Alnus acuminata H.B.K.

open access: yesAgronomía Colombiana, 1989
El árbol de Aliso, Alnus scuminsta H.B.K. es una de -las especies más recomendadas en reforestación y por su economía<br />es motivo de estudio. Se comprobó que su número cromosómico es de 2n= 28.The Aliso tree, Alnus acuminata H.B.K., is one of ...
Coba de Gutierrez Bertha   +1 more
doaj  

Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski   +2 more
wiley   +1 more source

Índices de diversidad florística forestal en la Reserva Ecológica Arenillas

open access: yesAgroecosistemas, 2022
Existe un conocimiento no muy profundo sobre la importancia de los bosques secos en la diversidad de especies florísticas; sin embargo, la relación entre la composición de especies de árboles del bosque seco y la riqueza de especies no está bien ...
Luna Florin, Alex Dumany   +3 more
doaj  

"La mente es una especie de teatro" : filosofía y teatro en comunión de lenguajes [PDF]

open access: yes, 2004
Resumen: David Hume propone la frase que da título a la exposición –la mente es una especie de teatro- dentro del siguiente contexto: la negación del sujeto como realidad estable, esto es, no hay – para él- un sujeto substancial, una identidad; sino ...
Etchebehere, Pablo René
core  

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger   +4 more
wiley   +1 more source

Loxodontomys pikumche (Rodentia, Cricetidae): nueva especie para Argentina [PDF]

open access: yes, 2009
We report the first record of occurrence of Loxodontomys pikumche Spotorno et al., 1998, in the Central Andes of Argentina. We briefly describe external characters, skull, karyotype, and habitat; also, we provide general comparisons with the other known ...
Novillo, Agustina   +2 more
core  

Digitising biological collections to advance National Species Inventories: A case study from the flora of Chile

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
In response to Chile's public policy to establish a national biodiversity inventory and monitoring system, we launched the HerbarioDigital.cl portal. We have digitised over 120,000 specimens representing more than 3,900 species from two Chilean herbaria, integrating them through a curated local taxonomic index.
Ricardo A. Segovia   +5 more
wiley   +1 more source

Catastrofes naturales, respuesta a la falta de solidaridad de la especie

open access: yesInnovaciencia, 2016
El presente artículo pretende dar una mirada de alerta a la ausencia de solidaridad entre las especies por la coexistencia a partir de la física cuántica y la química orgánica.Todos miramos un mundo desde perspectivas muy distintas: Cultura, raza ...
Sergio Daniel Quiroga Flórez
doaj   +1 more source

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