Carga parasitaria de la cabra montés Capra pyrenaica victoriae

Parasitic infections in the Iberian ibex are common, serious and well documented. Most studies, however, focus on the subspecies Capra pyrenaica hispanica, found in the south and east of the Iberian peninsula, and few studies have investigated the subspecies Capra pyrenaica victoriae in the centre of the peninsula. Here we add to the information about C. p. victoriae, analyzing samples of this subspecies in the National Park of Sierra de Guadarrama. We found parasites in 97% of samples and identified a total of 11 helminth taxa. The most abundant genus in the analysis was Muellerius. Despite the frequency of parasites, the general health of the population seemed good.Las infecciones parasitarias en las cabras montesas ibéricas son frecuentes, graves y están bien documentadas. Sin embargo, la mayoría de trabajos se centran en la subespecie Capra pyrenaica hispanica, distribuida por el sur y el este de la península ibérica, mientras que hay pocos estudios dedicados a la subespecie presente en el centro de la península, Capra pyrenaica victoriae. Aquí aportamos información sobre C. p. victoriae, analizando muestras coprológicas de esta subespecie en el Parque Nacional de la Sierra de Guadarrama. Hemos encontrado parásitos en el 97% de las muestras e identificado un total de 11 taxones de helmintos. El género más abundante en los análisis ha sido Muellerius. En cualquier caso, la salud de la población parece, en general, buena de tal forma que las cargas parasitarias detectadas no influyen aparentemente de manera determinante en el estado de salud de la población.Depto. de Biodiversidad, Ecología y EvoluciónFac. de Ciencias BiológicasTRUEpu

Demographic trends of a reintroduced Iberian ibex Capra pyrenaica victoriae population in Central Spain

One reintroduced population of Iberian ibex was monitored between 2000 and 2007 in the Sierra de Guadarrama National Park (Central Spain) using the distance sampling method. The densities obtained from three samplings show a significant increase between 2000 (6.57 ind./km2 ) and 2007 (33.16 ind./km2 ) despite a range extension. After an initial period of balance, the sex ratio became unbalanced over time in favor of females. The age pyramid also changed after a dramatic population increase. The birth rate oscillated at relatively high values for the species (0.69–0.99 kids/female). The group size reduced significantly over time. Females with kids dispersed from the release area significantly less than males and mixed groups

COMPARISON OF TWO PARASITOLOGICAL TECHNIQUES FOR THE DIAGNOSIS OF INTESTINAL PARASITES IN A POPULATION OF IBERIAN IBEX (CAPRA PYRENAICA SCHINZ, 1838) IN THE SIERRA DE GUADARRAMA NATIONAL PARK (SPAIN)

Twenty samples of Iberian ibex collected in October 2014 in Sierra de Guadarrama National Park (Spain) were analyzed to evaluate detectability of intestinal parasites by two concentration techniques: Ritchie (1948) and Anécimo et al. (2012) and also to analyze and compare the parasite catalogue of each technique. There has been a decrease in the diversity of species found and an increase in prevalence data with respect to previous studies carried out in the same area, possibly due to the increase in Iberian ibex density in the area. A nematode species (Nematodirus filicollis) that has not previously been found in the population under study and which typically parasites cattle, has also been identified. This suggests an exchange of parasites between wild ungulates population and domestic livestock in this area.There were no significant differences between the results obtained by the two techniques used so that, the improvement in the working conditions of the analysts that involves the use of the Anécimo technique by not using hazardous solvents to health, can serve as a guideline to change the protocol of action

Winter distribution of passerine richness in the Maghreb (North Africa): a conservation assessment

This paper studies the factors affecting passerine (Order Passeriformes) species richness in the Western Maghreb, a region at the southwestern border of the Palearctic reputed as a primary wintering ground for many common European birds. The effect of productivity, temperature, landscape structure and geographical location on bird richness was explored at 220 localities across Morocco. The models resulting from multivariate analyses supported the effects of productivity, temperature and landscape cover on bird richness, with higher numbers of species occurring in warm farmlands of the northwest. The most suitable areas for birds avoided the cold and arid expanses of the Atlas Mountains and the Sahara and overlapped with the most human-impacted sectors. Within these areas, we detected an interspersed distribution of sectors of high bird richness and low human incidence. These sectors can be used as priority targets for conservation programmes of common birds during the winter

Macroecological inferences on soil fauna through comparative niche modeling: The case of Hormogastridae (Annelida, Oligochaeta)

Ecological Niche Modeling (ENM) through MaxEnt and quantitative comparison techniques using ENMtools could facilitate ecological inferences in problematic soil dwelling taxa. Despite its ecological relevance in the Western Mediterranean basin, the ecology of the endemic family Hormogastridae (Annelida, Oligochaeta) is poorly known. Applying this comparative approach to the main clades of Hormogastridae would allow a better understanding of their ecological preferences and differences. One hundred twenty-four occurrence data belonging to four clades within this earthworm family were used as input to infer separate MaxEnt models, including seven predictor variables. Niche breadth, niche overlap and identity tests were calculated in ENMtools; a spatial Principal Components Analysis (sPCA) was performed to contrast with the realized niches. The highly suitable predicted ranges varied in their ability to reflect the known distribution of the clades. The different analyses pointed towards different ecological preferences and significant ecological divergence in the four above-mentioned clades. These results are an example of wide-scale ecological inferences for soil fauna made possible by this promising methodology, and show how ecological characterization of relevant taxonomic units could be a useful support for systematic revisions

Thyroid nodules in children

Introduction and objective: Thyroid nodules in children are rare (2% of children have palpable thyroid nodules and 5% of children have thyroid nodules by ultrasonography)./nMost of these are benign and asymptomatic, but the percentage of nodules harboring cancer in children is higher than in adults: the rate of malignancy varies from 10 to 50% depending on published case series. For this reason, it is very important evaluating and monitoring the thyroid nodules in children./nSynthesis: The thyroid gland in children is more susceptible to certain carcinogenic agents than the thyroid gland in adults. Thus, clinical following of the thyroid nodules in children is very important./nThe American Thyroid Association (ATA) recognized that size criterion for performing fine-needle aspiration (FNA) in adults may not be appropriate in a growing thyroid gland in children. For this reason, the ATA recommended that ultrasound characterization and clinical context should be used in the evaluation./nBenign thyroid nodules must be monitored by periodic neck palpation and ultrasound examinations, so that if a significant increase in size is detected, it may lead to consider repeating FNA or performing a surgical excision./nConclusions: Clinical and ultrasonographic monitoring in thyroid nodule in children is very important due to its higher rate of malignancy than in adults.Introducción y objetivo: Los nódulos tiroideos son poco frecuentes en la infancia (2% de niños tienen nódulos palpables y un 5% de niños tienen nódulos detectados por ecografía). La mayoría son benignos y asintomáticos. Pero a diferencia de lo que sucede en el adulto, el riesgo de malignización de los mismos es mayor, de modo que, dependiendo de las series la tasa de malignidad se sitúa entre 10-50%. De ahí la importancia de hacer un seguimiento clínico adecuado./nSíntesis: La glándula tiroidea del niño es más sensible al efecto de determinados agentes carcinogénicos que la del adulto. Esto hace que el seguimiento de los nódulos tiroideos del niño que, en su mayoría son benignos y asintomáticos, cobre especial importancia./nLa American Thyroid Association (ATA) determinó que el criterio de tamaño utilizado en adultos para indicar punción aspiración con aguja fina (PAAF) podía no ser apropiado para la glándula del niño que está en crecimiento, por lo que recomendó también tener en cuenta las características ecográficas y el contexto clínico./nAnte los nódulos tiroideos benignos, se recomienda seguimiento clínico y ecográfico y ante aumentos de tamaño significativos, reconsiderar PAAF o cirugía./nConclusiones: Es importante hacer un seguimiento clínico y ecográfico en el nódulo tiroideo del niño por su mayor riesgo de malignización.Introduction and objective: Thyroid nodules in children are rare (2% of children have palpable thyroid nodules and 5% of children have thyroid nodules by ultrasonography)./nMost of these are benign and asymptomatic, but the percentage of nodules harboring cancer in children is higher than in adults: the rate of malignancy varies from 10 to 50% depending on published case series. For this reason, it is very important evaluating and monitoring the thyroid nodules in children./nSynthesis: The thyroid gland in children is more susceptible to certain carcinogenic agents than the thyroid gland in adults. Thus, clinical following of the thyroid nodules in children is very important./nThe American Thyroid Association (ATA) recognized that size criterion for performing fine-needle aspiration (FNA) in adults may not be appropriate in a growing thyroid gland in children. For this reason, the ATA recommended that ultrasound characterization and clinical context should be used in the evaluation./nBenign thyroid nodules must be monitored by periodic neck palpation and ultrasound examinations, so that if a significant increase in size is detected, it may lead to consider repeating FNA or performing a surgical excision./nConclusions: Clinical and ultrasonographic monitoring in thyroid nodule in children is very important due to its higher rate of malignancy than in adults.Introducción y objetivo: Los nódulos tiroideos son poco frecuentes en la infancia (2% de niños tienen nódulos palpables y un 5% de niños tienen nódulos detectados por ecografía). La mayoría son benignos y asintomáticos. Pero a diferencia de lo que sucede en el adulto, el riesgo de malignización de los mismos es mayor, de modo que, dependiendo de las series la tasa de malignidad se sitúa entre 10-50%. De ahí la importancia de hacer un seguimiento clínico adecuado./nSíntesis: La glándula tiroidea del niño es más sensible al efecto de determinados agentes carcinogénicos que la del adulto. Esto hace que el seguimiento de los nódulos tiroideos del niño que, en su mayoría son benignos y asintomáticos, cobre especial importancia./nLa American Thyroid Association (ATA) determinó que el criterio de tamaño utilizado en adultos para indicar punción aspiración con aguja fina (PAAF) podía no ser apropiado para la glándula del niño que está en crecimiento, por lo que recomendó también tener en cuenta las características ecográficas y el contexto clínico./nAnte los nódulos tiroideos benignos, se recomienda seguimiento clínico y ecográfico y ante aumentos de tamaño significativos, reconsiderar PAAF o cirugía./nConclusiones: Es importante hacer un seguimiento clínico y ecográfico en el nódulo tiroideo del niño por su mayor riesgo de malignización

Malacología: recurso educativo en abierto.

Fac. de Ciencias BiológicasFALSEsubmitte

Zoología. Un modelo para la enseñanza no presencial

Memoria Proyecto de innovación nº 238 curso 2020/2

La cabra montesa ("Capra pyrenaica victoriae") en el Parque Regional de la Cuenca Alta del Manzanares (Sierra de Guadarrama) proceso de reintroducción, parasitosis y modelización del nicho ecológico a nivel regional y peninsular

Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Biológicas, Departamento de Zoología y Antropología Física, leída el 30/01/2012.Depto. de Genética, Fisiología y MicrobiologíaFac. de Ciencias BiológicasTRUEProQuestpu