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Links
Collaborators
People I've had the pleasure to work with
Jorge M. Lobo
Miguel Araújo
Paulo A. V. Borges
Jesús Rodríguez
Manolo Nieto
Carsten Rahbek
Karl I. Ugland
Fermín Martín Piera†
Alberto Jiménez Valverde
Francisco J. Cabrero Sañudo
Andrés Baselga
Noemí Guil
Enrique García Barros
Jorge Cassinello
Institutions
Research institutions and scientific or naturalist associations
Museo Nacional de Ciencias Naturales
Departamento de Ciências Agrárias - CITAA - Universidade dos Açores
Institute of Biology - University of Copenhagen
Instituto Argentino de Investigaciones de las Zonas Áridas
Unidade de Macroecologia - Universidade de Évora
GBIF.es - Spanish node of the Global Biodiversity Information Facility
ENBI - European Network for Biodiversity Information
International Biogeography Society
Sociedad Entomológica Aragonesa
Fundação para a Ciência e a Tecnología
Biodiversity Software
Useful freeware tools
EstimateS - Statistical estimation of species richness and shared species from samples.
SPADE - Species Prediction And Diversity Estimation
Biomapper - Niche-based predictive modelling
You can find other tools at Yámana project pages
Examples
Here there are several examples of my work
Global patterns in mammal species richness of local communities (up), and the variability not explained by energetic and environmental variables (down) (i.e., historical effects), from dark blue (lower species richness or negative residuals) to green, yellow (median richness or small residuals), orange and dark red (higher species richness or positive residuals); the areas with high (or low) residual values indicate that neither the high richness of Sub-Saharian localities, nor the low number of species of South-American and Australian communities can be only explained with recent effects (Hortal, Rodríguez, Nieto & Lobo unpublished)
Predictive maps of dung beetle (left) and butterfly (right) species richness in mainland Portugal, from blue (less species) to red (more species); the differences between both species richness patterns are due to the different origin of the elements that compose the fauna of each group; whilst dung beetles present important numbers of mediterranean species, butterflies are mainly eurosiberian (Hortal et al 2001, 2004)
Faunistic regionalization based in Iberian Scarabaeidae species composition; below are their relationships; green and blue regions host an important number of eurosiberian species, whereas ibero-mahgrebian elements appear at yellow and red regions (Hortal et al 2003)
Proposal of improvement of current Protected Area Network (grey areas) of Madrid region (Spain) based on dung beetle distributions; numbers and colours indicate priority, from 1 (red) to 18 (dark green) (Hortal 2004)
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Publications
Below you have a (more or less) updated list of my publications (including currently finished but still unpublished manuscripts). Click underlined to obtain available PDFs. If you are interested in other publications, Thesis, or datasets, please feel free to e-mail me.
SCI indexed publications
Hortal-Muñoz, J., Martín-Piera, F. & Lobo, J. M. (2000) Dung beetle geographic diversity variation along a Western Iberian latitudinal transect (Coleoptera: Scarabaeidae). Annals of the Entomological Society of America 93, 235-243.
Hortal, J., Lobo, J. M. & Martín-Piera, F. (2001) Forecasting insect species richness scores in poorly surveyed territories: the case of the Portuguese dung beetles (Col. Scarabaeinae). Biodiversity and Conservation 10, 1343-1367.
Hortal, J., Garcia-Pereira, P. & García-Barros, E. (2004) Butterfly species richness in mainland Portugal: Predictive models of geographic distribution patterns. Ecography.27, 68-82.
Chefaoui, R. M., Hortal, J. & Lobo, J. M. (2005) Potential distribution modelling, niche characterization and conservation status assessment using GIS tools: a case study of Iberian Copris species. Biological Conservation 122, 327-338.
Hortal, J. & Lobo, J. M. (2005) An ED-based protocol for the optimal sampling of biodiversity. Biodiversity and Conservation 14, 2913-2947.
Hortal, J., Borges, P. A. V. & Gaspar, C. (2006) Evaluating the performance of species richness estimators: Sensitivity to sample grain size. Journal of Animal Ecology 75, 274-278.
Lobo, J. M., Hortal, J. & Cabrero-Sañudo, F. J. (2006) Regional and local influence of grazing activity on the diversity of a semiarid dung beetle community. Diversity and Distributions 12,111-123.
Rodríguez, J., Hortal, J. & Nieto, M. (2006) An evaluation of the influence of environment and biogeography on community structure. The case of the Holarctic mammals. Journal of Biogeography 33, 291-303.
Hortal, J. & Lobo, J. M. (2006) Towards a synecological framework for systematic conservation planning. Biodiversity Informatics 3, 16-45.
Cassinello, J., Acevedo, P., & Hortal, J. (2006) Prospects for population expansion of the exotic aoudad (Ammotragus lervia; Bovidae) in the Iberian Peninsula: clues from habitat suitability modelling. Diversity and Distributions 12, 666-678.
Hawkins, B.A., Araújo, M.B., Cabrero-Sañudo, F.J., Castro Parga, I., Diniz-Filho, J.A.F., Ferrer-Castán, D., Field, R., Gómez, J.F., Qian, H., Hortal, J., Kerr, J.T., Lobo, J.M., Montoya, D., Moreno, J.C., Olalla-Tárraga, M.Á., Pausas, J.G., Rahbek, C., Rodríguez, M.Á., Sanders, N.J., Albuquerque, F.S.d., & Williams, P.H. (in press) A global evaluation of metabolic theory as an explanation of diversity gradients. Ecology.
Baselga, A., Hortal, J., Jiménez-Valverde, A., Gómez, J. F. & Lobo, J. M. (in press) Which leaf beetles have not been yet described? Determinants of the description of Western Palaearctic Aphthona species (Coleoptera: Chrysomelidae). Biodiversity and Conservation.
Hortal, J., Rodríguez, J., Nieto, M. & Lobo, J. M. (under review) Global Extent Determinants of Mammal Local Species Richness.
Hortal, J. Lobo, J. M. & Jiménez-Valverde, A. (under review) Limitations of biodiversity databases. The description of seed plant diversity in Tenerife (Canary Islands) from BIOTA-Canarias
Guil, N., Hortal, J., Sánchez, S. & Machordom, A. (under review) Species richness of terrestrial Tardigrada communities in an Iberian mountain environment: effects of altitude, habitat structure and environmental variations.
Guil, N., Sánchez, S., Hortal, J. & Machordom, A. (under review) Diversity, variability and community structure of tardigrades in terrestrial microhabitats at an Iberian mountain environment.
Borges, P. A. V. & Hortal, J. (under review) Factors driving arthropod speciation at the Azorean Archipelago.
Hortal, J. Ugland, K. I. & Borges, P. A. V. (to be submitted) Grain, heterogeneity and species accumulation.
Hortal, J. Araújo, M. B. & Lobo, J. M. (in preparation) Representing species diversity with ED - Issues on extent and representation of geographic gradients.
Borges, P. A. V., Hortal, J., Gabriel, R., Gaspar, C. & Homem, N. (to be re-submitted) Would species richness estimators change the shape of the observed species area relationships?.
Hortal, J. & Lobo, J. M. (in preparation) Could assemblage descriptors be a good conservation surrogate?
Jiménez-Valverde, A., Lobo, J. M. & Hortal, J. (under review) Prevalence and sample size effects on prediction reliability of species distribution models.
Lobo, J. M., Baselga, A., Hortal, J., Jiménez-Valverde, A. & Gómez, J. F. (submitted) How does the knowledge on the spatial distribution of species increase?
Pereira, P. M. & Hortal, J. (to be re-submitted) Effects of grazing in the diversity and composition of South-Western Iberian Mediterranean semi-arid grasslands.
Hortal, J., Jiménez-Valverde, A., Gómez, J. F., Lobo, J. M. & Baselga, A. (in preparation) Historical bias in biodiversity inventories affects the observed realized niche of the species.
Jiménez-Valverde, A., Gómez, J. F., Lobo, J. M., Baselga, A. & Hortal, J. (to be submitted) Potential distribution of Maculinea nausithous (Bergsträsser, 1779) (Lepidoptera, Papilionoidea, Lycaenidae) in the Iberian peninsula: searching for new populations and delimiting suitable areas for translocation.
Flores-Romero, P., Navas, A., Lobo, J. M. & Hortal, J. (in preparation) Using Accumulation Curves to estimate ITSs regions intra-individual variability in Meloidogyne arenaria and Meloidogyne javanica.
Other publications
National journals and book chapters
Hortal, J. & Lobo, J. M. (2001) A preliminary methodological approach to model the spatial distribution of biodiversity attributes. In Spatio-temporal modelling of environmental processes. Proceedings of the 1st Spanish workshop on spatio-temporal modelling of environmental processes (ed. by J. Mateu & F. Montes), pp. 211-229. Publicacions de la Universitat Jaume I, Castelló de la Plana.
Hortal, J.& Lobo, J. M. (2002) Una metodología para predecir la distribución espacial de la diversidad biológica. Ecología (n.s.) 16, 151-178 + 14 figures.
Hortal, J., Cabrero-Sañudo, F. J. & de la Rosa, J. J. (2002) Discusión sobre las especies de Liothorax (Coleoptera, Aphodiinae) en la Península Ibérica. Nueva cita para Ciudad Real de Liothorax cylindricus (Reiche & Saulcy, 1856). Boletín de la Sociedad Entomológica Aragonesa 31, 111-112.
Nieto, M., Hortal, J., Martínez-Maza, C., Morales, J. & Rodríguez, J. (2003) Variaciones en la riqueza de macromamíferos de España durante el neógeno. Graellsia 59, 299-317.
Hortal, J., Lobo, J. M. & Martín-Piera, F. (2003) Una estrategia para obtener regionalizaciones bióticas fiables a partir de datos incompletos: el caso de los Escarabeidos (Coleoptera) Ibérico-Baleares. Graellsia 59, 331-344.
Lobo, J. M. & Hortal, J. (2003) Modelos predictivos: Un atajo para describir la distribución de la diversidad biológica. Ecosistemas.2003/1.
Jiménez-Valverde, A. & Hortal, J. (2003) Las curvas de acumulación de especies y la necesidad de evaluar la calidad de los inventarios biológicos. Revista Ibérica de Aracnología.8, 151-161.
Nieto, M., Bastir, M., Cabrero-Sañudo, F. J., Hortal, J., Martínez-Maza, C. & Rodríguez, J. (2004) Does evolution evolve? In Homenaje a Emiliano Aguirre, volúmen de Paleoantropología (ed. by E. Baquedano & S. Rubio Jara), pp. 232-252. Museo Arqueológico Regional de Madrid, Alcalá de Henares, Madrid.
Nieto, M., Hortal, J., Martínez-Maza, C., Morales, J., Ortiz-Jaureguizar, E., Pelaez-Campomanes, P., Pickford, M., Prado, J. L., Rodríguez, J., Senut, B., Soria, D. & Varela, S. (2005) Historical determinants of mammal diversity in Africa: Evolution of mammalian body weight distribution in Africa and South America during Neogene and Quaternary times. In Proceedings of the 5th International Symposium on Tropical Biology. African Biodiversity - Molecules, Organisms, Ecosystems (ed. by B. A. Huber), pp. in press. Kluwer Academic.
Hortal, J., Nieto, M., Rodríguez, J. & Lobo, J. M. (2005) Evaluating the roles of connectivity and environment on faunal turnover: patterns in recent and fossil Iberian mammals. In Migration in Organisms. Climate, Geography, Ecology (ed. by A. M. T. Elewa), pp. 301-327. Springer, Berlin.
Hortal, J., Borges, P. A. V., Dinis, F., Jiménez-Valverde, A., Chefaoui, R. M., Lobo, J. M., Jarroca, S., Brito de Azevedo, E., Rodrigues, C., Madruga, J., Pinheiro, J., Gabriel, R., Cota Rodrigues, F. & Pereira, A. R. (2005) Using ATLANTIS - Tierra 2.0 and GIS environmental information to predict the spatial distribution and habitat suitability of endemic species. In A list of the terrestrial fauna (Mollusca and Arthropoda) and flora (Bryophyta, Pteridophyta and Spermatophyta) from the Azores (ed. by P. A. V. Borges, R. Cunha, R. Gabriel, A. F. Martins, L. Silva & V. Vieira), pp 69-113. Direcção Regional de Ambiente and Universidade dos Açores, Horta, Angra do Heroísmo and Ponta Delgada.
Santos, A. M. C., Borges, P. A. V., Hortal, J. & Lopes, D. J. H. (2005) Riqueza de espécies e diversidade ecológica de himenópteros parasitóides (Hymenoptera, Parasitica) em culturas frutícolas da ilha Terceira (Açores). In Fruticultura na Macaronésia - O Contributo do projecto INTERFRUTA para o seu desenvolvimento (ed. by D. J. H. Lopes, A. Pereira, A. Mexia, J. Mumford & R. Cabrera), pp. 115-134. Universidade dos Açores, Angra do Heroísmo.
Santos, A. M. C., Borges, P. A. V., Hortal, J., Rodrigues, A. C., Medeiros, C., Azevedo, E. B., Melo, C. & Lopes, D. J. H. (2005) Diversidade da fauna de insectos fitófagos e de inimigos naturais em culturas frutícolas da ilha Terceira (Açores): a importância do maneio e da heterogeneidade ambiental. In Fruticultura na Macaronésia - O Contributo do projecto INTERFRUTA para o seu desenvolvimento (ed. by D. J. H. Lopes, A. Pereira, A. Mexia, J. Mumford & R. Cabrera), pp. 137-151
. Universidade dos Açores, Angra do Heroísmo.
Lobo, J. M. & Hortal, J. (2006) Los Escarabeidos y Geotrúpidos de la Comunidad de Madrid: lista de especies, distribución geográfica y patrones de diversidad (Coleoptera, Scarabaeoidea: Scarabaeidae y Geotrupidae). Graellsia, 62, 421-440.
Hortal, J., Lobo, J. M. & del Rey, L. (2006) Distribución y patrones de diversidad de los afódidos en la Comunidad de Madrid (Coleoptera, Scarabaeoidea, Aphodiidae: Aphodiinae y Psammodiinae). Graellsia, 62, 441-462.
Books and Theses
Abad Peiró, S., Hortal Muñoz, J., de Miguel Campanero, O. & Blanco Kroeger, M. (1999) Guía de especies vegetales y avifauna de Tres Cantos, p. 158. Asociación de Vecinos de Tres Cantos, Tres Cantos, Madrid.
Hortal, J. (2002) Distribución Geográfica de la Riqueza de Especies de Mariposas en Portugal Continental (Lepid. Rhopalocera). Exploración y Comparación de Patrones con Escarabeidos (Col. Scarabaeinae) y Plantas Vasculares a Partir de Modelos Predictivos de Biodiversidad. MSc thesis. Departamento de Biología, Facultad de Ciencias pp. 35. Universidad Autónoma de Madrid, Madrid.
Hortal, J. (2004) Selección y Diseño de Áreas Prioritarias de Conservación de la Biodiversidad mediante Sinecología. Inventario y modelización predictiva de la distribución de los escarabeidos coprófagos (Coleoptera, scarabaeoidea) de Madrid. PhD Thesis. Departamento de Biología, Facultad de Ciencias pp. 333. Universidad Autónoma de Madrid, Madrid.
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