Results 61 to 70 of about 295,506 (201)

Branquiópodos de las masas de agua lacustre del Parque Nacional Cajas (Andes Australes, Ecuador) inventario y notas autoecológicas

open access: yesMaskana, 2017
Un muestreo extensivo de 202 masas de agua leníticas (lagos, lagunas y charcas), ubicadas entre 3,150 y 4,460 m s.n.m. en el Parque Nacional Cajas (Andes Australes de Ecuador), ha puesto de manifiesto el elevado interés que tienen estos enclaves de alta ...
Miguel Alonso   +3 more
doaj   +1 more source

Ponencia "Los Andes tropicales"

open access: yes, 2009
Ponencia del taller Aplicaciones de tecnología espacial integrada al desarrollo sostenible in altas montañas de países andinos presentada en la Sesión 1 Génesis & tecnología espacial.

core  

Capitulo 2. Naturaleza de los “Andes tropicales”

open access: yes, 2014
Sus límites Los Andes tropicales, es decir, la parte de las cordilleras que va desde Venezuela hasta el norte de Chile, se extienden de los 10° de latitud N a los 23° S.
Dollfus (†), Olivier
core   +1 more source

Underestimation of avian diversity in the Tumbesian hotspot: Sampling gaps and conservation challenges

open access: yesConservation Science and Practice, EarlyView.
This study provides the first comprehensive reassessment of avian diversity in the Tumbesian region in over 30 years, documenting 931 species and identifying significant sampling gaps driven by geographic accessibility. We reveal a critical misalignment between biodiversity value and current protection coverage, particularly in humid forests which ...
Anabel Cueva‐Agila   +3 more
wiley   +1 more source

MAMÍFEROS NO VOLADORES DEL PARQUE NACIONAL SANGAY, ECUADOR

open access: yesPapéis Avulsos de Zoologia
RESUMEN En el presente estudio se documenta la riqueza de mamíferos no voladores del Parque Nacional Sangay (PNS), una de las zonas con mayor vacío de información de Ecuador.
JORGE BRITO M., REED OJALA-BARBOUR
doaj   +1 more source

Environmental DNA succeeds in detecting a low‐density population of endangered harlequin frogs

open access: yesConservation Science and Practice, EarlyView.
This work evaluates the use of environmental DNA (eDNA) to detect the Critically Endangered Jambato Harlequin Frog (Atelopus ignescens)—an iconic species once thought extinct and now known only from a single locality in the Ecuadorian Andes. Our study demonstrates the effectiveness of eDNA in detecting the Jambato in a low‐density amphibian population,
Mónica I. Páez‐Vacas   +14 more
wiley   +1 more source

Localización de embalses en cuencas de alta carga sedimentaria: el caso del río Bermejo, Argentina

open access: yesTecnología y ciencias del agua, 2010
La elección del emplazamiento de una presa en ambientes montañosos subtropicales y tropicales debe considerar ante todo la progresión de la colmatación esperable según la carga sólida que transporta un río.
Marcelo E. Lascano-Kezič
doaj   +1 more source

1173. Ipomoea pandurata (L.) G. Mey

open access: yesCurtis's Botanical Magazine, EarlyView.
Summary Ipomoea pandurata is a Morning Glory from North America which develops a large storage root. There is much uncertainty about its discovery before its formal description in the middle of the 18th century. Originally described as a Convolvulus, almost a hundred years passed before its recognition as a species of Ipomoea.
John R.I. Wood   +2 more
wiley   +1 more source

Étude géologique des Andes du Pérou central

open access: yes, 1978
This memoir is one of a series describing studies made by French workers in the Andes since 1960. It has been modified during 1975 and 1976 from a thesis presented to the University of Montpellier II in 1973.
Mégard, François
core   +1 more source

Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III   +1 more
wiley   +1 more source

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