Results 11 to 20 of about 166 (54)

Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity. [PDF]

open access: yesJ Fish Biol, 2021
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Aguirre WE   +15 more
europepmc   +2 more sources

Reassessment of generic boundaries in Neotropical Chrysophylloideae (Sapotaceae): Eleven reinstated genera and narrowed circumscriptions of Chrysophyllum and Pouteria

open access: yesTAXON, Volume 72, Issue 2, Page 307-359, April 2023., 2023
Abstract Classifications of the pantropical plant family Sapotaceae based solely on morphology have historically recognized between 125 and 53 genera. Phylogenetic analyses using molecular data have repeatedly demonstrated that broad concepts of two large genera belonging to subfamily Chrysophylloideae, Chrysophyllum and Pouteria, are untenable and ...
Ulf Swenson   +6 more
wiley   +1 more source

On the Lack of Domestic Dogs in Pre‐Columbian Lowland Amazonia and Their Deep History of Entanglements With Humans in South America

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 30, Issue 2, June 2025.
ABSTRACT Data from archaeology, ethnography, and ethnohistory document entanglements of dogs among South American Indigenous societies during pre‐Columbian and colonial times. The prolific presence and uses of dogs in the Central Andes and in parts of the Paraná Basin, Patagonia, and Circum‐Caribbean regions contrast with the conspicuous lack of ...
Marcelo R. Sánchez‐Villagra   +2 more
wiley   +1 more source

A new characid species with remarkable sexual dimorphism (Characiformes: Characidae: Stevardiinae) from the upper Guayabero River, Orinoco basin, Colombia

open access: yesJournal of Fish Biology, Volume 104, Issue 6, Page 1947-1959, June 2024.
Abstract A new species of characid with remarkable sexual characteristics is described from the upper Guayabero River drainage from the Orinoco basin in Colombia. The new species is included in the genus Monotocheirodon by sharing most of the previously proposed diagnostic features of this genus.
Tiago P. Carvalho   +3 more
wiley   +1 more source

Primer registro de Campylocia araca Gonçalves & Salles (Ephemeroptera: Euthyplociidae) en Colombia

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2021
En este trabajo se reporta el primer registro para Colombia de la especie Campylocia araca Gonçalves & Salles, con lo cual se amplía su distribución geográfica.
Laura Jimena Marín-Eslava   +2 more
doaj   +1 more source

Primer registro del efemeróptero Oligoneuria (Oligoneurioides) amazonica (Demoulin, 1955) (Insecta: Ephemeroptera, Oligoneuriidae) para Colombia

open access: yesBiota Colombiana, 2018
Oligoneuria Pictet, 1843 es un género perteneciente a la familia Oligoneuriidae y se caracteriza por presentar venación muy reducida en sus alas y patas atrofiadas.
Cristian E. Granados-Martínez   +2 more
doaj   +5 more sources

TRES NUEVAS ESPECIES DE Hyphessobrycon GRUPO heterorhabdus (TELEOSTEI: CHARACIFORMES: CHARACIDAE), Y CLAVE PARA ESPECIES DE LA CUENCA DEL RÍO ORINOCO

open access: yesCaldasia, 2010
Se describen tres nuevas especies de Hyphessobrycon grupo heterorhabdus de lacuenca alta del río Orinoco, Orinoquia Colombiana. Hyphessobrycon mavro sp.
García Carlos, Román Cesar, Prada Saul
doaj  

Procesamiento y complejo dietético de la Yuca Brava entre los indígenas Puinaves del Río Inírida

open access: yesCaldasia, 1982
El grupo indígena sobre el cual está escrito el presente artículo habita en la Comisaría del Guainía, situada al oriente del territorio colombiano, entre los llanos del Meta y Vichada y las fronteras de Venezuela y Brasil.
Triana Gloria
doaj  

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