A5087678357- Avian ecology and behavior
- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Marine and coastal plant biology
- Marine Bivalve and Aquaculture Studies
- Bird parasitology and diseases
- Marine and fisheries research
- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Sperm and Testicular Function
- Trypanosoma species research and implications
- Marine Biology and Ecology Research
- Species Distribution and Climate Change
- Microplastics and Plastic Pollution
- Dye analysis and toxicity
- Recycling and Waste Management Techniques
- Plant and animal studies
- Impact of Light on Environment and Health
- Bat Biology and Ecology Studies
- Physiological and biochemical adaptations
- Meat and Animal Product Quality
- Educational Innovations and Technology
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Wildlife-Road Interactions and Conservation
- Marine animal studies overview
Universidad de Cádiz
2008-2025
Instituto de Química y Fisicoquímica Biológicas
2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2024
Universidad Autónoma de Chile
2024
Universidad de La Frontera
2023
Patagonian Ecosystems Investigation Research Center
2009-2010
University of the Andes
1988-1992
ABSTRACT To make many sites accessible, humans have constructed roads. New layers of different materials (pipeclay, gravel, etc.) are added to the original soil for construction unpaved roads, which in marshy areas readily used as nesting by ground‐nesting waterbirds. On other hand, disposal dredged has been a specific management strategy facilitate waterbirds order compensate loss natural habitats. The introduced substrates may differ their physical properties (e.g., colouration) from ones,...
In ground‐nesting birds egg colour and appearance may have evolved due to opposite selection pressures. Pigmentation spottiness make the eggs darker been suggested improve camouflage. However more spotted reach higher temperatures when not attended by adults receiving direct sunlight, which be lethal for embryos. Some authors that this trade‐off exist because eggshell pigments mainly reflect in infrared region of solar spectrum, but considered wavelengths visible part spectrum also...
Abstract Citizen science platforms such as eBird provide essential spatiotemporal information and big data for the study of birds. The analysis an extensive 20-year dataset distribution Eurasian Magpie Pica pica showed that species is steadily expanding within urbanised areas in south Iberian Peninsula. occurrence checklists area has average exponential growth rate greater than 20%. occupied by multiplied 40 last 20 years, going from 25 to almost 1000 km 2 . In order test potential negative...
Como parte de un estudio epidemiológico sobre leishmaniasis en el Estado Mérida, Venezuela, se presenta la diversidad y dispersión las especies flebotominas identificadas 15 localidades ubicadas 3 pisos altitudinales entre los 175 1.960 m.s.n.m. De 7.126 espécimes capturados (5.132 hombres 1.994 femenino) registran 24 Lutzomyia, reconociéndose 10 llmadas antropofílicas. Se detalla distribución cada piso altitudinal domicilio humano, peridomicilio ambiente silvestre. discute posible papel que...
In species of birds with biparental care, each sex may have its own energy requirements and/or schedule for feeding, possibly leading the sexes to differ in foraging strategy. estuaries, shorebirds such as Kentish Plover (Charadrius alexandrinus alexandrinus) forage on intertidal mudflats and adjacent supratidal habitats during winter well breeding season. this study, we analyzed diet, use habitat, food-intake rate (biomass ingested per unit time), time allocated by male female Plovers at...
Shorebird populations are declining worldwide, mainly due to human disturbances and loss of coastal wetlands. However, supratidal habitats as saltpans could play a role in buffering impact. Saltpans have shown be important feeding or breeding sites some shorebird species. A potential conservation strategy increase is manipulate the cues that birds use select optimal habitat. Here it hypothesized shorebirds attracted bivalve shells advantages they offer. Following this hypothesis, we...
Many studies addressing the use of nest materials by animals have focused on only one factor to explain its function. However, consideration more than could apparently maladaptive choice that make nests conspicuous predators. We experimentally tested whether there is a trade-off in between risks egg predation versus protection from overheating. studied ground-nesting Kentish plover, Charadrius alexandrinus, southern Spain. added differing thermal properties and coloration nests, thus...
Macronutrient (protein, lipids, and carbohydrates) assimilation efficiencies of wild birds have rarely been studied, but they may be particularly important for estimating the optimal diet. We assessed experimentally energy macronutrient captive Snowy Plover (Charadrius alexandrinus) feeding on polychaete ragworm Nereis diversicolor, a major natural prey migratory shorebirds (Charadrii) along intertidal habitats worldwide. Overall, consumed 8.64 ± 1.54 (SD) g dry ragworms per day, apparent...
Sperm sexing is a technology that can generate great economic benefits in the animal production sector. Techniques such as sex-sorting promise over 90% accuracy sperm sexing. However, for correct standardization of technique, some laboratory methodologies are required. The present manuscript describes detail standardized equine protocol using an absolute qPCR-based methodology. Furthermore, results qPCR were implemented and validated by generating equine/bovine heterologous embryos...
Do islands harbour less diverse disease communities than mainland? The island biogeography theory predicts more on mainland due to niches, habitats and availability of greater range hosts. We compared bacteria prevalences Campylobacter, Chlamydia Salmonella in cloacal samples a small shorebird, the Kentish plover (Charadrius alexandrinus) between two populations Macaronesia locations Iberian Peninsula. Bacteria were found all but, contrary expectations, did not differ mainland. Females had...
Quail eggs have been widely used in field experiments, mainly to study factors associated with the risk of nest predation. Some shortcomings using quail this type previously addressed (e.g., these might be too big for some predators small birds). Here, we show experimental evidence another shortcoming use experiments. exposed sunlight rapidly faded colour after three days, both visible and UV spectra, change was related amount solar radiation received. This caused changes camouflage eggs,...
La predación es una de las causas principales del fracaso nidos aves. Para superar esto, muchas especies ponen huevos crípticos, lo que mejora el camuflaje mediante similitud con fondo o alteración en la percepción formas, entre otros mecanismos. A pesar particularmente aves nidifican suelo sufren altas tasas nidos. Una posibilidad para aliviar esto consistiría ensuciar los partículas material rodea nidos, mejoraría camuflaje. De hecho, se ha sugerido ensuciamiento un mecanismo protección...
Tradicionalmente se han empleado dos métodos para extraer pigmentos de cascarones huevos aves. Están aquellos que usan ácidos fuertes (p. ej., sulfúrico, clorhídrico o fórmico), permiten una cuantificación las concentraciones pigmentos, pero con los muestras son destruidas. Alternativamente, hay emplean débiles acético) no destruyen muestras, cuantificar y solo su presencia es detectada. En algunos casos, puede ser interés en ya detectado pigmentos. este estudio hemos valorado si cantidades...