Results 51 to 60 of about 44,238 (227)

Yacimientos de hierro en Colombia y depósitos de hierro en Sudamérica

open access: yesBoletín Geológico, 1972
El estudio expone los principales yacimientos en explotación y depósitos de Hierro en Colombia, Chile, Ecuador, Guayana Francesa, Guyana, Venezuela, Uruguay, Suriman, Perú, Paraguay, Brasil, Bolivia y Argentina.
Jaime Cruz Buenaventura
doaj   +1 more source

Dietary selectivity mediates niche overlap and interspecific competition in a reedbed warbler community in southern Europe

open access: yesIbis, EarlyView.
Sympatric species are expected to use resources differently along one or more ecological dimensions. This can be complex when there is partial separation along multiple dimensions, such as where bird species exhibit similarities in habitat use and diet.
S. R. Davies   +5 more
wiley   +1 more source

Between Autonomy and Dependency: The Territorialisation of Agroecology in the Colombian Peasant Reserve Zones

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Peasant movements employ a spectrum of politico‐economic strategies for territorialising agroecology, ranging from autonomy to (inter)dependency. To substantiate this argument, I draw on qualitative fieldwork and historical analysis to examine the Colombian Peasant Reserve Zone movement's strategies for territorialising agroecology at both the
Daniel Ortiz Gallego
wiley   +1 more source

Feminist Agroecology and Criollo Hens: Women's Everyday Resistance in Colombia

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Industrial poultry technologies and processes are reshaping the knowledge, practice and agrobiodiversity of criollo (Gallus domesticus) or backyard hen keeping, as well as outcompeting this livelihood in formal markets. This transition undermines women's autonomy and socio‐economic resilience by engendering dependence on market inputs ...
Jaskiran Kaur Chohan   +1 more
wiley   +1 more source

Phylogenomics of the American robin (Turdus migratorius) reveals hidden lineages and introgression

open access: yesJournal of Systematics and Evolution, EarlyView.
Phylogenomic analyses of Turdus migratorius uncover four previously unrecognized lineages, including a divergent Baja California lineage (T. m. confinis). The results reveal complex evolutionary relationships that depart from simple models of continuous divergence, supported by evidence of introgression between the Mexican lineage and its previously ...
Wendoly Rojas‐Abreu   +5 more
wiley   +1 more source

Recursos competitivos y valoraciones del huésped: elementos clave en el fortalecimiento de la marca hotelera en el Mar de Cortés

open access: yesInnovar: Revista de Ciencias Administrativas y Sociales
Los hoteles tradicionalmente ostentan una categoría de estrellas para informar a los consumidores la calidad de servicios que pueden esperar al reservar una habitación.
Eric Israel Rios Nequis   +2 more
doaj   +1 more source

Entre La Violencia, la colonización y la adjudicación de reservas

open access: yesRevista Colombiana de Antropología, 2017
La historia del pueblo sikuani ha estado asociada a la incursión colonizadora y a la usurpación de sus tierras ancestrales, lo que ha causado la ruptura de lazos culturales y de identidad.
Laura Calle Alzate
doaj   +1 more source

RESERVA MARINA GALÁPAGOS

open access: yesRevista de Ordenación del Sector Marítimo
The “Galapagos Islands” represent a unique ecosystem in the world, home for an internationally recognized mega diversity. The islands have two protected areas: the “Galapagos National Park” and the “Galapagos Marine Reserve”, considered one of the most ecologically rich areas.
openaire   +2 more sources

Molecular phylogenetic analysis sheds light on the diversity and evolutionary history of the Neotropical and African Triplophyllum (Tectariaceae)

open access: yesJournal of Systematics and Evolution, EarlyView.
We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes   +6 more
wiley   +1 more source

Sistema para Controle de Reservas em Hotel [PDF]

open access: yes, 2014
O controle de reservas em hotéis e pousadas é uma tarefa querequer um tratamento cuidadoso, pois erros podem comprometer seriamente a qualidade do serviço prestado.
Perlin, Hugo Alberto   +1 more
core   +1 more source

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