Results 61 to 70 of about 242,026 (236)

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

Efeito do coberto vegetal na biodiversidade funcional de artrópodes associados a castanheiros

open access: yes, 2021
O castanheiro apresenta grande importância económica e social, sendo em algumas regiões de montanha a principal fonte de rendimento das populações rurais, constituindo-se ainda como elemento caraterizador da paisagem. Tem como pragas-chave a vespa-das-galhas-docastanheiro, Dryocosmus kuriphilus (Yasumatsu), bichado-da-castanha, Cydia splendana (Hübener)
Souza, Maria Eliza Cota e   +2 more
openaire   +1 more source

Impact of climate on the migration phenology of the endangered Little Bustard in Spain

open access: yesIbis, EarlyView.
The phenology of animals is closely tied to seasonal climatic patterns so, by altering temperature and precipitation regimes, climate change disrupts the phenological cycles of species. More specifically, the influence of rising temperatures on the phenology of bird migration has been long studied.
Irene Hernández‐Téllez   +6 more
wiley   +1 more source

Biodiversidad 2017. Estado y tendencias de la biodiversidad continental de Colombia. Reporte Bio

open access: yes, 2018
En la cuarta versión del Reporte, que corresponde al año 2017, es una obligación preguntarnos cuál ha sido y es el papel de esta publicación y si ha abarcado la diversidad de formas y conceptos que definen el estado y el futuro de la biodiversidad ...
Aguilar-Cano, José Reinaldo   +128 more
core  

Sibling species of copepods in association with Mediterranean gorgorians

open access: yesScientia Marina, 2004
Hitherto a single species of Doridicola Leydig (Poecilostomatoida: Rhynchomolgidae) has been found reported in association with gorgonians in Europe: Doridicola botulosus (Stock and Kleeton, 1963), living on the Mediterranean gorgonian Eunicella ...
Mercedes Conradi   +2 more
doaj   +1 more source

Seasonal shifts in network structure and species roles in a tropical island plant–flower visitor community Cambios estacionales en la estructura de la red de interacciones entre plantas y visitantes florales y en los roles de las especies en una comunidad insular tropical

open access: yesInsect Conservation and Diversity, EarlyView.
Constant visitation rates across the flowering season masked major shifts in plant and flower visitor interaction structure, specialization, species roles and trait‐driven patterns shaping interaction intensity. Plants and flower visitors changed ecological roles over time, with native flower visitors playing key roles in maintaining network cohesion ...
Alba Costa   +3 more
wiley   +1 more source

La Biotecnología Vegetal Como Herramienta Para La Conservación De La Biodiversidad

open access: yesInnovaciencia, 2017
Introducción: Colombia por su privilegiada ubicacióngeográfica y gran variedad de biomas y ecosistemas, ofrece unarica diversidad en flora estimada en más de 45.000 especies,equivalente al 10% del total de los géneros que existen a nivelmundial'. Además, nuestra biodiversidad nos lleva a ostentar elprimer lugar en variedades de orquídeas, con 4.010 ...
openaire   +1 more source

Embryonic and larval development of the endangered Chiapas killifish Tlaloc hildebrandi (Cyprinodontiformes: Profundulidae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract The early ontogeny of endemic freshwater fishes provides essential baseline biological information for conservation and management, particularly in species with restricted distributions and high vulnerability to habitat degradation, environmental change and population decline. This study presents the first detailed description of embryonic and
Rubén Alonso Contreras‐Tapia   +6 more
wiley   +1 more source

Biodiversidad morfológico-reproductiva y genética del género endémico canario Parolinia Webb (Brassicaceae)

open access: yes, 2009
Programa de Doctorado: Biodiversidad y conservación vegetal. Tesis realizada en el Jardín Botánico Canario "Viera y Clavijo" en colaboración con el Departamento de Biología de la Universidad de Las Palmas de Gran CanariaLa investigación de esta Memoria ...
Fernández-Palacios Acosta, Olga
core  

Subsistence hunting shapes the spatial variation of jaguar densities in community‐managed forests

open access: yesJournal of Zoology, EarlyView.
Jaguars and people can coexist in community‐managed forests, but distance matters. In Guatemala's Maya Biosphere Reserve, jaguar numbers increased markedly in areas harder to reach on foot, yet jaguars were still found near communities, showing that responsibly managed forests can support jaguar populations while allowing people to maintain traditional
L. Perera‐Romero   +5 more
wiley   +1 more source

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