Results 1 to 10 of about 128 (104)

Assessing the levels of intraspecific admixture and interspecific hybridization in Iberian wild goats (Capra pyrenaica). [PDF]

open access: yesEvol Appl, 2021
Abstract Iberian wild goats (Capra pyrenaica, also known as Iberian ibex, Spanish ibex, and Spanish wild goat) underwent strong genetic bottlenecks during the 19th and 20th centuries due to overhunting and habitat destruction. From the 1970s to 1990s, augmentation translocations were frequently carried out to restock Iberian wild goat populations (very
Cardoso TF   +16 more
europepmc   +2 more sources

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

The scope and severity of white-nose syndrome on hibernating bats in North America. [PDF]

open access: yesConserv Biol, 2021
Abstract Assessing the scope and severity of threats is necessary for evaluating impacts on populations to inform conservation planning. Quantitative threat assessment often requires monitoring programs that provide reliable data over relevant spatial and temporal scales, yet such programs can be difficult to justify until there is an apparent stressor.
Cheng TL   +34 more
europepmc   +2 more sources

New Insights into Antiviral Natural Formulations: Biopolymeric Films for the Prevention and Treatment of a Wide Gamma of Viral Infections [PDF]

open access: yesViruses
Viral infections remain a major concern, as existing treatments often yield inadequate responses or lead to the development of antiviral resistance in some cases.
Victoria Belén Ayala-Peña   +9 more
doaj   +2 more sources

PpNAC1, a main regulator of phenylalanine biosynthesis and utilization in maritime pine. [PDF]

open access: yesPlant Biotechnol J, 2018
Summary The transcriptional regulation of phenylalanine metabolism is particularly important in conifers, long‐lived species that use large amounts of carbon in wood. Here, we show that the Pinus pinaster transcription factor, PpNAC1, is a main regulator of phenylalanine biosynthesis and utilization. A phylogenetic analysis classified PpNAC1 in the NST
Pascual MB   +5 more
europepmc   +2 more sources

Do relaxed selection and habitat temperature facilitate biased mitogenomic introgression in a narrowly endemic fish? [PDF]

open access: yesEcol Evol, 2016
In this study, we used a combination of genetic and environmental data, to examine mitochondrial introgression in the narrowly endemic and trophically polymorphic cichlid, Herichthys minckleyi. Using extensive mitochondrial sequencing and 6220 nuclear single nucleotide polymorphisms, we show that mitochondrial introgression into H.
Hulsey CD   +4 more
europepmc   +2 more sources

Artichoke cultivars (var. "Blanca de Tudela") under elevated ozone concentrations. [PDF]

open access: yesScientificWorldJournal, 2002
Ozone concentrations rise to phytotoxic levels from spring to autumn at western Mediterranean basin coastal sites, where artichoke is one of the most important crops. Simultaneously, from year to year and especially since the early 1980s, resprouting of the stumps has been decreasing in Valencian Community artichoke plantations.
Sanz MJ, Porcuna JL, Calvo E, Martín C.
europepmc   +2 more sources

Parámetros productivos del cultivo de cachama blanca Piaractus orinoquensis, en jaulas flotantes

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2021
La región de la Orinoquia, se caracteriza por poseer espejos de agua que se mantienen durante todo el año, aportando peces para consumo local. La pesca artesanal constituye la principal actividad económica de sustento de comunidades ribereñas, quienes ...
Jorge Andrés Cuan-Barrera   +3 more
doaj   +1 more source

Peces demersales del Parque Nacional Natural Gorgona y su Área de influencia, Pacífico colombiano

open access: yesBiota Colombiana, 2006
El presente trabajo muestra listados taxonómicos resultado de la segunda etapa del Programa de Pesca Científica del PNN Gorgona, cuyo objetivo es el de evaluar los patronesde variabilidad temporal a largo plazo en la composición del ensamblaje íctico ...
Paola Andrea Rojas M., Luis A. Zapata
doaj   +8 more sources

Cultural importance, availability and conservation status of Spanish wild medicinal plants: Implications for sustainability

open access: yesPeople and Nature, Volume 5, Issue 5, Page 1512-1525, October 2023., 2023
Abstract The harvest of wild plants with medicinal uses is increasing globally, both for self‐treatment and as a source of income. The increasing demand for these remedies could lead to the over‐harvest of some species. Despite a recent surge in the number of studies analysing wild medicinal plants management, little is known about the effects of non ...
J. Mateo‐Martín   +7 more
wiley   +1 more source

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