Juan F. Beltrán

Universidad de Sevilla

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Rafael Márquez

Museo Nacional de Ciencias Naturales

Miguel Delibes

Estación Biológica de Doñana

Diego Llusia

Universidad Autónoma de Madrid

Miguel Tejedo

Estación Biológica de Doñana

Francisco Carro

Estación Biológica de Doñana

Ramón C. Soriguer

Estación Biológica de Doñana

Sacramento Moreno

Estación Biológica de Doñana

Jaime R. Rau

Universidad de Los Lagos

Pablo Ferreras

Instituto de Investigación en Recursos Cinegéticos

Eduardo J. Rodríguez-Rodríguez

Universidad de Sevilla

Cooperative Institutions

Consejo Superior de Investigaciones Científicas

Centre National de la Recherche Scientifique

Estación Biológica de Doñana

Universidade do Porto

University of Lisbon

Centro de Investigação em Biodiversidade e Recursos Genéticos

Museo Nacional de Ciencias Naturales

University of Copenhagen

Sorbonne Université

University of Washington

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Cyber-Physical System for Environmental Monitoring Based on Deep Learning

Sensors (2021)

Íñigo Monedero Julio Barbancho Rafael Márquez Juan F. Beltrán

Cyber-physical systems (CPS) constitute a promising paradigm that could fit various applications. Monitoring based on the Internet of Things (IoT) has become a research area with new challenges in which to extract valuable information. This paper proposes a deep learning classification sound system for execution over CPS. This system is based on convolutional neural networks (CNNs) and is focused on the different types of vocalization of two species of anurans. CNNs, in conjunction with the use of mel-spectrograms for sounds, are shown to be an adequate tool for the classification of environmental sounds. The classification results obtained are excellent (97.53% overall accuracy) and can be considered a very promising use of the system for classifying other biological acoustic targets as well as analyzing biodiversity indices in the natural environment. The paper concludes by observing that the execution of this type of CNN, involving low-cost and reduced computing resources, are feasible for monitoring extensive natural areas. The use of CPS enables flexible and dynamic configuration and deployment of new CNN updates over remote IoT nodes.

Spectrogram

Cyber-physical system

Environmental Monitoring

10.3390/s21113655

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Citations (9)

Niche models at inter- and intraspecific levels reveal hierarchical niche differentiation in midwife toads

Scientific Reports (2020)

Eduardo J. Rodríguez-Rodríguez Juan F. Beltrán Miguel Tejedo Alfredo G. Nicieza Diego Llusia

Abstract Variation and population structure play key roles in the speciation process, but adaptive intraspecific genetic variation is commonly ignored when forecasting species niches. Amphibians serve as excellent models for testing how climate and local adaptations shape species distributions due to physiological and dispersal constraints and long generational times. In this study, we analysed the climatic factors driving the evolution of the genus Alytes at inter- and intraspecific levels that may limit realized niches. We tested for both differences among the five recognized species and among intraspecific clades for three of the species ( Alytes obstetricans , A. cisternasii , and A. dickhilleni ). We employed ecological niche models with an ordination approach to perform niche overlap analyses and test hypotheses of niche conservatism or divergence. Our results showed strong differences in the environmental variables affecting species climatic requirements. At the interspecific level, tests of equivalence and similarity revealed that sister species were non-identical in their environmental niches, although they neither were entirely dissimilar. This pattern was also consistent at the intraspecific level, with the exception of A. cisternasii, whose clades appeared to have experienced a lower degree of niche divergence than clades of the other species. In conclusion, our results support that Alytes toads, examined at both the intra- and interspecific levels, tend to occupy similar, if not identical, climatic environments.

Niche segregation

10.1038/s41598-020-67992-6

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Citations (23)

Environmental determinants of acoustic activity in Iberian anurans

The Journal of the Acoustical Society of America (2012)

Rafael Márquez Diego Llusia Juan F. Beltrán

We monitored acoustic activity of populations of anurans (genera Hyla and Alytes) in the Iberian Peninsula (Spain and Portugal) in localities at thermal extremes of their distribution. Logistic and linear regression models revealed that the major social and environmental determinants of calling behavior (chorus recruitment and chorus duration) were similar over most populations. Chorus recruitment was less dependent on environmental factors than chorus duration, which was also influenced by chorus size. Seasonal variation of night temperatures in populations of Hyla showed wide overall ranges (above 11 °C) and gradual increases of the nightly mean (3-12 °C), which was positively associated with the day number in the breeding season. Within days, temperatures were typically close to their daily maximum at sunset, the initiation of calling activity. We compared ranges of calling temperatures among species, populations, and seasons over three years. We showed that calling temperature changed when anuran populations were subjected to different thermal environments. Species had wide calling temperatures ranges across their distribution. Interannual comparisons showed that both terrestrial and aquatic breeding anurans were active during extremely hot breeding seasons. Lower thermal thresholds for the onset of calling were different between conspecific populations, suggesting that other factors are needed to trigger reproduction.

Chorus

Hylidae

Peninsula

Sunset

Hyla

10.1121/1.4755605

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Rates and causes of mortality in a fragmented population of Iberian lynx Felis pardina Temminck, 1824

Biological Conservation (1992)

Pablo Ferreras Juán J. Aldama Juan F. Beltrán Miguel Delibes

Habitat Fragmentation

Fragmentation

10.1016/0006-3207(92)91116-a

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Citations (162)

Permanent Genetic Resources added to Molecular Ecology Resources Database 1 December 2010–31 January 2011

Molecular Ecology Resources (2011)

Kiyokazu Agata Samer Alasaad Vera Maria Fonseca de Almeida‐Val José Antonio Álvarez‐Dios Federica Barbisan

Abstract This article documents the addition of 238 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Alytes dickhilleni , Arapaima gigas , Austropotamobius italicus , Blumeria graminis f. sp. tritici , Cobitis lutheri , Dendroctonus ponderosae , Glossina morsitans morsitans , Haplophilus subterraneus , Kirengeshoma palmata , Lysimachia japonica , Macrolophus pygmaeus , Microtus cabrerae , Mytilus galloprovinciali s, Pallisentis ( Neosentis ) celatus , Pulmonaria officinalis , Salminus franciscanus , Thais chocolata and Zootoca vivipara . These loci were cross‐tested on the following species: Acanthina monodon , Alytes cisternasii , Alytes maurus , Alytes muletensis , Alytes obstetricans almogavarii , Alytes obstetricans boscai , Alytes obstetricans obstetricans , Alytes obstetricans pertinax , Cambarellus montezumae , Cambarellus zempoalensis , Chorus giganteus , Cobitis tetralineata , Glossina fuscipes fuscipes , Glossina pallidipes , Lysimachia japonica var. japonica , Lysimachia japonica var. minutissima , Orconectes virilis , Pacifastacus leniusculus , Procambarus clarkii , Salminus brasiliensis and Salminus hilarii .

10.1111/j.1755-0998.2011.03004.x

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Citations (43)

Heavy flooding effects on home range and habitat selection of free-ranging Iberian hares (Lepus granatensis) in Doñana National Park (SW Spain)

ACTA THERIOLOGICA (2011)

Francisco Carro Ramón C. Soriguer Juan F. Beltrán Ana C. Andreu

Ecotone

Home range

Animal ecology

Bracken

Peninsula

10.1007/s13364-011-0037-x

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Citations (6)

Niche models at inter‑and intraspecifc levels revealhierarchical niche diferentiationin midwife toads

Eduardo Rodríguez Araque Juan F. Beltrán Miguel Tejedo Alfredo G. Nicieza Diego Llusia

Variation and population structure play key roles in the speciation process, but adaptive intraspecifc genetic variation is commonly ignored when forecasting species niches.Amphibians serve as excellent models for testing how climate and local adaptations shape species distributions due to physiological and dispersal constraints and long generational times. In this study, we analysed the climatic factors driving the evolution of the genus Alytes at inter- and intraspecifc levels that may limit realized niches.We tested for both diferences among the fve recognized species and among intraspecifc clades for three of the species (Alytes obstetricans, A. cisternasii, and A. dickhilleni). We employed ecological niche models with an ordination approach to perform niche overlap analyses and test hypotheses of niche conservatism or divergence. Our results showed strong diferences in the environmental variables afecting species climatic requirements.At the interspecifc level, tests of equivalence and similarity revealed that sister species were non-identical in their environmental niches, although they neither were entirely dissimilar. This pattern was also consistent at the intraspecifc level, with the exception of A. cisternasii, whose clades appeared to have experienced a lower degree of niche divergence than clades of the other species. In conclusion, our results support that Alytes toads, examined at both the intra- and interspecifc levels, tend to occupy similar, if not identical, climatic environments.

Niche segregation

Parapatric speciation

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IMMOBILIZATION OF THE ENDANGERED IBERIAN LYNX WITH XYLAZINE- AND KETAMINE-HYDROCHLORIDE

Journal of Wildlife Diseases (1994)

Pablo Ferreras Juán J. Aldama Juan F. Beltrán Miguel Delibes

A combination of the dissociative anesthetic ketamine hydrochloride (KH) and the sedative xylazine hydrochloride (XH) was used to immobilize 31 wild Iberian lynx (Felis pardina) 45 times at Doñana National Park, Spain. A mean (±SE) dose of 4.6 (±0.2) mg/kg KH and 4.0 (±0.2) mg/kg XH resulted in mean (±SE) induction time of 5.6 (±0.3) min and mean (±SE) first reaction time of 59.3 (±6.5) min. Convulsions occurred four times (9%), but with no noteworthy consequences.

Ketamine hydrochloride

10.7589/0090-3558-30.1.65

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Citations (17)

La implantación del notariado en Sevilla y los primeros documentos notariales: Siglo XIII-XIV

Isagogé (2009)

Juan F. Beltrán

espanolEl presente articulo pretende marcar, en lineas generales, la implantacion del notariado en Sevilla tras la conquista cristiana. Se plantea su organizacion, rasgos y bases legales que favorecieron el asentamiento de este oficio en la ciudad hispalense. Finaliza con el analisis del proceso de elaboracion de los documentos notariales fijados en el siglo XIII. EnglishThis article gives a brief insight into the creation of the notarial profession in Seville after the Christian conquest, its organization, characteristics and the legal basis which favoured the implantation of this trade in Seville. The article concludes with an analysis of the elaboration of notarial documents in the 13th century.

CONQUEST

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Limited gene flow and high genetic diversity in the threatened Betic midwife toad (Alytes dickhilleni): evolutionary and conservation implications

Conservation Genetics (2014)

Guilherme Caeiro‐Dias Juan F. Beltrán Miguel Tejedo Maribel Benítez Emilio González-Miras

Habitat Fragmentation

Conservation Genetics

Gene pool

10.1007/s10592-014-0672-2

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Citations (12)