178 results on '"Olivero, Jesús"'
Search Results
2. Gone (and spread) with the birds: Can chorotype analysis highlight the spread of West Nile virus within the Afro-Palaearctic flyway?
- Author
-
García-Carrasco, José-María, Muñoz, Antonio-Román, Olivero, Jesús, Figuerola, Jordi, Fa, Julia E., and Real, Raimundo
- Published
- 2023
- Full Text
- View/download PDF
3. Yellow fever surveillance suggests zoonotic and anthroponotic emergent potential
- Author
-
Aliaga-Samanez, Alisa, Real, Raimundo, Segura, Marina, Marfil-Daza, Carlos, and Olivero, Jesús
- Published
- 2022
- Full Text
- View/download PDF
4. Disease ecology and pathogeography: Changing the focus to better interpret and anticipate complex environment–host–pathogen interactions.
- Author
-
Guégan, Jean‐François, Poisot, Timothée, Han, Barbara A., and Olivero, Jesús
- Published
- 2024
- Full Text
- View/download PDF
5. Climate change is aggravating dengue and yellow fever transmission risk.
- Author
-
Aliaga‐Samanez, Alisa, Romero, David, Murray, Kris, Cobos‐Mayo, Marina, Segura, Marina, Real, Raimundo, and Olivero, Jesús
- Abstract
Dengue and yellow fever have complex cycles, involving urban and sylvatic mosquitoes, and non‐human primate hosts. To date, efforts to assess the effect of climate change on these diseases have neglected the combination of such crucial factors. Recent studies only considered urban vectors. This is the first study to include them together with sylvatic vectors and the distribution of primates to analyse the effect of climate change on these diseases. We used previously published models, based on machine learning algorithms and fuzzy logic, to identify areas where climatic favourability for the relevant transmission agents could change: 1) favourable areas for the circulation of the viruses due to the environment and to non‐human primate distributions; 2) the favourability for urban and sylvatic vectors. We obtained projections of future transmission risk for two future periods and for each disease, and implemented uncertainty analyses to test for predictions reliability. Areas currently favourable for both diseases could keep being climatically favourable, while global favourability could increase a 7% for yellow fever and a 10% increase for dengue. Areas likely to be more affected in the future for dengue include West Africa, South Asia, the Gulf of Mexico, Central America and the Amazon basin. A possible spread of dengue could take place into Europe, the Mediterranean basin, the UK and Portugal; and, in Asia, into northern China. For yellow fever, climate could become more favourable in Central and Southeast Africa; India; and in north and southeast South America, including Brazil, Paraguay, Bolivia, Peru, Colombia and Venezuela. In Brazil, favourability for yellow fever will probably increase in the south, the west and the east. Areas where the transmission risk spread is consistent to the dispersal of vectors are highlighted in respect of areas where the expected spread is directly attributable to environmental changes. Both scenarios could involve different prevention strategies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Present and future situation of West Nile virus in the Afro‐Palaearctic pathogeographic system.
- Author
-
García‐Carrasco, José‐María, Souviron‐Priego, Lucrecia, Muñoz, Antonio‐Román, Olivero, Jesús, Fa, Julia E., and Real, Raimundo
- Abstract
West Nile virus (WNV) is a globally widespread arthropod‐borne virus that poses a significant public health concern. Mosquitoes transmit the virus in an enzootic cycle among birds, which act as reservoirs. Climate plays a crucial role in these outbreaks as mosquitoes are highly influenced by climatic conditions, and bird migrations are also affected by weather patterns. Consequently, changes in climate can potentially impact the occurrence of WNV outbreaks. We used biogeographic modelling based on machine learning algorithms and fuzzy logic to analyse and evaluate separately the risk of WNV outbreaks in two different biogeographic regions, the Afrotropical and the Western Palaearctic region. By employing fuzzy logic tools, we constructed a comprehensive risk model that integrates the Afro‐Palaearctic system as a unified operational unit for WNV spread. This innovative approach recognizes the Afro‐Palaearctic region as a pathogeographic system, characterized by biannual connections facilitated by billions of migratory bird reservoirs carrying the disease. Subsequently, we forecasted the effects of different climate change scenarios on the spread of WNV in the Afro‐Palaearctic system for the years 2040 and 2070. Our findings revealed an increasing epidemic and epizootic risk south of the Sahara. However, the area where an upsurge in risk was forecasted the most lies within Europe, with the anticipation of risk expansion into regions presently situated beyond the virus' distribution range, including central and northern Europe. Gaining insight into the risk within the Afro‐Palaearctic system is crucial for establishing coordinated and international One Health surveillance efforts. This becomes particularly relevant in the face of ongoing climate change, which disrupts the ecological equilibrium among vectors, reservoirs, and human populations. We show that the application of biogeographical tools to assess risk of infectious disease, i.e. pathogeography, is a promising approach for understanding distribution patterns of zoonotic diseases and for anticipating their future spread. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Modelling the covariance structure in marginal multivariate count models: Hunting in Bioko Island
- Author
-
Bonat, Wagner, Olivero, Jesus, Grande-Vega, Maria, Fárfan, Miguel, and Fa, John
- Subjects
Statistics - Methodology ,Statistics - Applications - Abstract
We present a flexible statistical modelling framework to deal with multivariate count data along with longitudinal and repeated measures structures. The covariance structure for each response variable is defined in terms of a covariance link function combined with a matrix linear predictor involving known matrices. To specify the joint covariance matrix for the multivariate response vector the generalized Kronecker product is employed. The count nature of the data is taken into account by means of the power dispersion function associated with the Poisson-Tweedie distribution. Furthermore, the score information criterion is extended for selecting the components of the matrix linear predictor. We analyse a dataset consisting of prey animals (the main hunted species, the blue duiker \textit{Philantomba monticola} and other taxa) shot or snared for bushmeat by $52$ commercial hunters over a $33$-month period in Pico Basil\'e, Bioko Island, Equatorial Guinea. By taking into account the severely unbalanced repeated measures and longitudinal structures induced by the hunters and a set of potential covariates (which in turn affect the mean and covariance structures), our method can be used to indicate whether there was statistical evidence of a decline in blue duikers and other species hunted during the study period. Determining whether observed drops in the number of animals hunted are indeed true is crucial to assess whether species depletion effects are taking place in exploited areas anywhere in the world. We suggest that our method can be used to more accurately understand the trajectories of animals hunted for commercial or subsistence purposes, and establish clear policies to ensure sustainable hunting practices., Comment: 24 pages, 3 figures
- Published
- 2016
8. LOS RELLENOS SANITARIOS EN LATINOAMÉRICA: CASO COLOMBIANO
- Author
-
M. Noguera, Katia, primary and T. Olivero, Jesús, additional
- Published
- 2023
- Full Text
- View/download PDF
9. West Nile virus in the Iberian Peninsula: using equine cases to identify high-risk areas for humans
- Author
-
García-Carrasco, José-María, primary, Muñoz, Antonio-Román, additional, Olivero, Jesús, additional, Segura, Marina, additional, García-Bocanegra, Ignacio, additional, and Real, Raimundo, additional
- Published
- 2023
- Full Text
- View/download PDF
10. The molluscan fauna of Chella Bank and surroundings (Western Mediterranean Sea)
- Author
-
Caballero-Herrera, José Antonio, Urra, Javier, Gofas, Serge, Salas, Carmen, Bárcenas, Patricia, Gallardo-Núñez, Marina, Moya-Urbano, Elena, Olivero, Jesús, and Rueda, José L.
- Subjects
molluscs ,Seco de los Olivos ,mar profundo ,rodolitos ,vulnerable marine ecosystem ,deep sea ,Ecosistemas Vulnerables Marinos ,banco Chella ,coral rubble ,rhodoliths ,Chella Bank ,moluscos ,restos de corales - Abstract
Molluscs of Chella Bank and its surroundings were studied from 21 samples collected with a van Veen grab in the depth range 95-729 m. A total of 299 taxa were identified (77 live-taken), thus increasing by more than 95% the species of molluscs reported in the recently declared site of community importance “Sur de Almería-Seco de los Olivos”. Two of the species are new records to Spanish waters and one to the Alboran Sea. The high species richness observed could be related to the location, the hydrological characteristics and the topographical heterogeneity of the area within the Alboran Sea. Four significant groups of samples were discriminated through multivariate analysis of quantitative data of live-taken molluscs: (I) bathyal muddy bottoms with buried rhodoliths; (II) bathyal muddy bottoms with coral rubble; (III) bathyal hemipelagic muddy bottoms and (IV) bathyal sandy bottoms. Molluscs were more diverse on coral framework bottoms than on sedimentary bottoms around Chella Bank. Most of the live-taken species are widely distributed along the Atlantic and Mediterranean Sea, and a few are strictly Mediterranean. The most striking feature was the occurrence of two species with planktotrophic larval development for which Chella Bank is the sole recorded locality in the Mediterranean (Episcomitra angelesaeandMitrella templadoi) and which elsewhere extremely rare (Mathildaspp.)., Se estudiaron los moluscos del banco Chella y sus fondos adyacentes a partir de veintiuna muestras cogidas con draga Van Veen entre 95 y 729 m de profundidad. Un total de 299 taxones fueron identificados (77 vivos), incrementando en un 95% el total de moluscos citados en el reciente Lugar de Importancia Comunitaria “Sur de Almería-Seco de los Olivos”. Dos especies son nuevas citas para aguas españolas y una para el mar de Alborán. La elevada riqueza específica puede estar relacionada con la localización, las características hidrológicas y la heterogeneidad topográfica de esta zona situada dentro del mar de Alborán. Mediante análisis multivariantes usando datos cuantitativos de la taxocenosis se han diferenciado cuatro grupos de muestras: (I) fangos del batiales con rodolitos enterrados, (II) fangos batiales con restos de corales, (III) fangos hemipelágicos batiales, y (IV) arenas batiales. La mayor diversidad se encontró en los fondos con restos de corales, a diferencia de los fondos sedimentarios situados alrededor del banco Chella. La mayoría de las especies vivas están ampliamente distribuidas por el Atlántico y el Mediterráneo, y muy pocas son estrictamente mediterráneas. Cabe destacar la ocurrencia de algunas especies con desarrollo planctotrófico (Episcomitra angelesae,Mitrella templadoi) en el banco Chella como única localidad registrada en el Mediterráneo o especies extremadamente raras en otros lugares (Mathildaspp.).
- Published
- 2023
- Full Text
- View/download PDF
11. Evaluacion del riesgo de contaminacion por metales pesados (Hg y Pb) en sedimentos marinos del Estero Huayla, Puerto Bolivar, Ecuador
- Author
-
González, Víctor, Valle, Sonia, Nirchio, Mauro, Olivero, Jesús, Tejeda, Lesly, Valdelamar, Juan, Pesantes, Fredis, and González, Katherine
- Published
- 2018
12. An African West Nile virus risk map for travellers and clinicians
- Author
-
García-Carrasco, José-María, primary, Muñoz, Antonio-Román, additional, Olivero, Jesús, additional, Segura, Marina, additional, and Real, Raimundo, additional
- Published
- 2023
- Full Text
- View/download PDF
13. The molluscan fauna of Chella Bank and surroundings (Western Mediterranean Sea)
- Author
-
CSIC - Instituto Español de Oceanografía (IEO), European Maritime and Fisheries Fund, Ministerio para la Transición Ecológica y el Reto Demográfico (España), Caballero-Herrera, José Antonio, Urra, Javier, Gofas, Serge, Salas, Carmen, Bárcenas-Gascón, Patricia, Gallardo-Núñez, Marina, Moya-Urbano, Elena, Olivero, Jesús, Rueda, José Luis, CSIC - Instituto Español de Oceanografía (IEO), European Maritime and Fisheries Fund, Ministerio para la Transición Ecológica y el Reto Demográfico (España), Caballero-Herrera, José Antonio, Urra, Javier, Gofas, Serge, Salas, Carmen, Bárcenas-Gascón, Patricia, Gallardo-Núñez, Marina, Moya-Urbano, Elena, Olivero, Jesús, and Rueda, José Luis
- Abstract
[EN] Molluscs of Chella Bank and its surroundings were studied from 21 samples collected with a van Veen grab in the depth range 95-729 m. A total of 299 taxa were identified (77 live-taken), thus increasing by more than 95% the species of molluscs reported in the recently declared site of community importance “Sur de Almería–Seco de los Olivos”. Two of the species are new records to Spanish waters and one to the Alboran Sea. The high species richness observed could be related to the location, the hydrological characteristics and the topographical heterogeneity of the area within the Alboran Sea. Four significant groups of samples were discriminated through multivariate analysis of quantitative data of live-taken molluscs: (I) bathyal muddy bottoms with buried rhodoliths; (II) bathyal muddy bottoms with coral rubble; (III) bathyal hemipelagic muddy bottoms and (IV) bathyal sandy bottoms. Molluscs were more diverse on coral framework bottoms than on sedimentary bottoms around Chella Bank. Most of the live-taken species are widely distributed along the Atlantic and Mediterranean Sea, and a few are strictly Mediterranean. The most striking feature was the occurrence of two species with planktotrophic larval development for which Chella Bank is the sole recorded locality in the Mediterranean (Episcomitra angelesae and Mitrella templadoi) and which elsewhere extremely rare (Mathilda spp.)., [ES] Se estudiaron los moluscos del banco Chella y sus fondos adyacentes a partir de veintiuna muestras cogidas con draga Van Veen entre 95 y 729 m de profundidad. Un total de 299 taxones fueron identificados (77 vivos), incrementando en un 95% el total de moluscos citados en el reciente Lugar de Importancia Comunitaria “Sur de Almería-Seco de los Olivos”. Dos especies son nuevas citas para aguas españolas y una para el mar de Alborán. La elevada riqueza específica puede estar relacionada con la localización, las características hidrológicas y la heterogeneidad topográfica de esta zona situada dentro del mar de Alborán. Mediante análisis multivariantes usando datos cuantitativos de la taxocenosis se han diferenciado cuatro grupos de muestras: (I) fangos del batiales con rodolitos enterrados, (II) fangos batiales con restos de corales, (III) fangos hemipelágicos batiales, y (IV) arenas batiales. La mayor diversidad se encontró en los fondos con restos de corales, a diferencia de los fondos sedimentarios situados alrededor del banco Chella. La mayoría de las especies vivas están ampliamente distribuidas por el Atlántico y el Mediterráneo, y muy pocas son estrictamente mediterráneas. Cabe destacar la ocurrencia de algunas especies con desarrollo planctotrófico (Episcomitra angelesae, Mitrella templadoi) en el banco Chella como única localidad registrada en el Mediterráneo o especies extremadamente raras en otros lugares (Mathilda spp.).
- Published
- 2023
14. Unravelling the historical biogeography of the European rabbit subspecies in the Iberian Peninsula
- Author
-
Universidad de Málaga, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Ministerio de Economía, Industria y Competitividad (España), Díaz-Ruiz, Francisco, Vaquerizas, Patricia H., Márquez, Ana Luz, Delibes-Mateos, Miguel, Piorno, Vicente, Castro, Francisca, Ramírez, Esther, Farfán, Miguel Ángel, Olivero, Jesús, Real, Raimundo, Villafuerte, Rafael, Universidad de Málaga, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Ministerio de Economía, Industria y Competitividad (España), Díaz-Ruiz, Francisco, Vaquerizas, Patricia H., Márquez, Ana Luz, Delibes-Mateos, Miguel, Piorno, Vicente, Castro, Francisca, Ramírez, Esther, Farfán, Miguel Ángel, Olivero, Jesús, Real, Raimundo, and Villafuerte, Rafael
- Abstract
Understanding the biogeography of species in space and time is essential for the development of evidence-based conservation and management plans. In this paper we propose a biogeographical spatial modelling approach based on the favourability function, and developed under a fuzzy logic framework, to unravel the historical biogeography of the two European wild rabbit subspecies, Oryctolagus cuniculus algirus (Oca) and Oryctolagus cuniculus cuniculus (Occ), in the Iberian Peninsula (IP). We first reviewed published and unpublished information (PhD theses, scientific papers, technical reports, etc.) on the occurrence of each rabbit subspecies throughout the IP. We compiled data from 201 Iberian rabbit populations and from genetic information of 4348 rabbits that was used to identify subspecies. Only populations in which all rabbits surveyed belonged to one subspecies were considered in the modelling procedure. We modelled rabbit subspecies' distribution separately for populations in which nuclear and mitochondrial DNA sequences were available. We employed a trend surface analysis developed by logistic regressions, which applied the favourability function and fuzzy logic operations. Using our approach we indentify the expansion cores from which both rabbit subspecies would have expanded after isolation during the last glaciations. Furthermore, we reveal the possible existence of a competitive exclusion zone between both rabbit subspecies that may have prevented their further expansion. Finally, our study shows that the Oca subspecies is distributed in north-western areas previously attributed to Occ. This assessment of the actual and historical distribution of each rabbit subspecies may allow more specific conservation interventions, as the two subspecies are not just genetically distinct but also ecologically and behaviourally different. Our methodological approach could be useful in unravelling the historical biogeography of other lesser-known species.
- Published
- 2023
15. Applying fuzzy logic to assess the biogeographical risk of dengue in South America
- Author
-
Romero, David, Olivero, Jesús, Real, Raimundo, and Guerrero, José Carlos
- Published
- 2019
- Full Text
- View/download PDF
16. Correlates of bushmeat in markets and depletion of wildlife
- Author
-
Fa, John E., Olivero, Jesus, Farfán, Miguel Á., Márquez, Ana L., Duarte, Jesús, Nackoney, Janet, Hall, Amy, Dupain, Jef, Seymour, Sarah, Johnson, Paul J., Macdonald, David W., Real, Raimundo, and Vargas, Juan M.
- Published
- 2015
- Full Text
- View/download PDF
17. Making the competitive exclusion principle operational at the biogeographical scale using fuzzy logic
- Author
-
Real, Raimundo, primary, Báez, José C., additional, Fa, Julia E., additional, Olivero, Jesús, additional, and Acevedo, Pelayo, additional
- Published
- 2022
- Full Text
- View/download PDF
18. Recent loss of closed forests is associated with Ebola virus disease outbreaks
- Author
-
Olivero, Jesús, Fa, Julia E., Real, Raimundo, Márquez, Ana L., Farfán, Miguel A., Vargas, J. Mario, Gaveau, David, Salim, Mohammad A., Park, Douglas, Suter, Jamison, King, Shona, Leendertz, Siv Aina, Sheil, Douglas, and Nasi, Robert
- Published
- 2017
- Full Text
- View/download PDF
19. Population interconnectivity over the past 120,000 years explains distribution and diversity of Central African hunter-gatherers
- Author
-
Padilla-Iglesias, Cecilia, primary, Atmore, Lane M., additional, Olivero, Jesús, additional, Lupo, Karen, additional, Manica, Andrea, additional, Arango Isaza, Epifanía, additional, Vinicius, Lucio, additional, and Migliano, Andrea Bamberg, additional
- Published
- 2022
- Full Text
- View/download PDF
20. Population inter-connectivity over the past 120,000 years explains distribution and diversity of Central African hunter-gatherers
- Author
-
Padilla-Iglesias, Cecilia, Atmore, Lane M, Olivero, Jesús, Lupo, Karen, Manica, Andrea, Arango Isaza, Epifanía, Vinicius, Lucio, Bamberg Migliano, Andrea, University of Zurich, Padilla-Iglesias, Cecilia, Atmore, Lane M [0000-0002-8903-8149], Olivero, Jesús [0000-0003-1714-0360], Lupo, Karen [0000-0003-3652-3105], Manica, Andrea [0000-0003-1895-450X], Vinicius, Lucio [0000-0002-9396-3249], and Apollo - University of Cambridge Repository
- Subjects
10207 Department of Anthropology ,media_common.quotation_subject ,Ecology (disciplines) ,Population ,hunter-gatherers ,10127 Institute of Evolutionary Biology and Environmental Studies ,Deep history ,Effective population size ,Cultural diversity ,population dynamics ,Humans ,education ,Anthropology, Cultural ,Sociality ,media_common ,Population Density ,1000 Multidisciplinary ,education.field_of_study ,Central Africa ,Multidisciplinary ,300 Social sciences, sociology & anthropology ,Ecology ,Genetic Variation ,Agriculture ,environmental change ,Cultural Diversity ,Geography ,Archaeology ,ecological niche modelling ,Homo sapiens ,Africa ,Diversity (politics) - Abstract
The evolutionary history of African hunter-gatherers holds key insights into modern human diversity. Here we combine ethnographic and genetic data on Central African hunter-gatherers (CAHG) to show that their current distribution and density is explained by ecology rather than by a displacement to marginal habitats due to recent farming expansions, as commonly assumed. We also predict hunter-gatherer presence across Central Africa over the past 120,000 years using paleoclimatic reconstructions, which were statistically validated by dated archaeological sites. Finally, we show that genomic estimates of separation times between CAHG groups match our ecological estimates of periods favouring population splits, and that recoveries of connectivity would have facilitated subsequent gene-flow. Our results reveal that CAHG stem from a deep history of partially connected populations. This form of sociality allowed the coexistence of relatively large effective population sizes and local differentiation, with important implications for the evolution of genetic and cultural diversity in Homo sapiens.
- Published
- 2021
21. Supplementary material: Making the competitive exclusion principle operational at the biogeographical scale using fuzzy logic
- Author
-
Real, Raimundo, Báez, José Carlos, Fa, Julia E., Olivero, Jesús, Acevedo, Pelayo, Real, Raimundo, Báez, José Carlos, Fa, Julia E., Olivero, Jesús, and Acevedo, Pelayo
- Published
- 2022
22. Making the competitive exclusion principle operational at the biogeographical scale using fuzzy logic
- Author
-
Junta de Andalucía, Ministerio de Economía, Industria y Competitividad (España), Universidad de Castilla La Mancha, Ministerio de Economía y Competitividad (España), Real, Raimundo, Báez, José Carlos, Fa, Julia E., Olivero, Jesús, Acevedo, Pelayo, Junta de Andalucía, Ministerio de Economía, Industria y Competitividad (España), Universidad de Castilla La Mancha, Ministerio de Economía y Competitividad (España), Real, Raimundo, Báez, José Carlos, Fa, Julia E., Olivero, Jesús, and Acevedo, Pelayo
- Abstract
In biogeography the competitive exclusion principle (CEP) has been confirmed in some cases but not in others. This has fueled an unresolved debate between those advocating niche theory or the neutral theory in biodiversity and biogeography. We suggest that this situation mainly arises from the use of crisp logic, where the CEP is defined as either completely true or false. We propose the application of the fuzzy concepts of favorability (the degree to which environmental conditions are propitious for the occurrence of individual species) and favorableness (the degree to which environmental conditions are simultaneously favorable for competing species) to operationalize a fuzzy version of the CEP. Favorability was obtained by performing species distribution models applying favorability functions, while favorableness was derived from the application of the fuzzy intersection between the favorability for competing species. Then we plotted individual favorability values along the gradient of favorableness. Two potentially competing species would coexist in high-favorableness locations, as the demands of both species would be well fulfilled. In locations of low favorableness, the result would be either autecological exclusion of both species or autecological segregation, as abiotic conditions are unfavorable for at least one of the species. Competitive exclusion would occur at the intermediate stretch of the favorableness gradient, as the conditions would be good enough for persistence of each species separately but not enough for permanent coexistence. According to this theoretical framework, the observed probability that a location belongs to the intermediate favorableness area given that the two species co-occur in this location should be lower than expected according to the environmental probability models for the two species. We tested this prediction on published data about the distribution of pairs of native and introduced deer species in Great Britain, using a Ba
- Published
- 2022
23. Population interconnectivity over the past 120,000 years explains distribution and diversity of Central African hunter-gatherers
- Author
-
Padilla-Iglesias, Cecilia, Atmore, Lane M; https://orcid.org/0000-0002-8903-8149, Olivero, Jesús; https://orcid.org/0000-0003-1714-0360, Lupo, Karen; https://orcid.org/0000-0003-3652-3105, Manica, Andrea; https://orcid.org/0000-0003-1895-450X, Arango Isaza, Epifanía, Vinicius, Lucio; https://orcid.org/0000-0002-9396-3249, Bamberg Migliano, Andrea; https://orcid.org/0000-0003-4364-2735, Padilla-Iglesias, Cecilia, Atmore, Lane M; https://orcid.org/0000-0002-8903-8149, Olivero, Jesús; https://orcid.org/0000-0003-1714-0360, Lupo, Karen; https://orcid.org/0000-0003-3652-3105, Manica, Andrea; https://orcid.org/0000-0003-1895-450X, Arango Isaza, Epifanía, Vinicius, Lucio; https://orcid.org/0000-0002-9396-3249, and Bamberg Migliano, Andrea; https://orcid.org/0000-0003-4364-2735
- Abstract
The evolutionary history of African hunter-gatherers holds key insights into modern human diversity. Here, we combine ethnographic and genetic data on Central African hunter-gatherers (CAHG) to show that their current distribution and density are explained by ecology rather than by a displacement to marginal habitats due to recent farming expansions, as commonly assumed. We also estimate the range of hunter-gatherer presence across Central Africa over the past 120,000 years using paleoclimatic reconstructions, which were statistically validated by our newly compiled dataset of dated archaeological sites. Finally, we show that genomic estimates of divergence times between CAHG groups match our ecological estimates of periods favoring population splits, and that recoveries of connectivity would have facilitated subsequent gene flow. Our results reveal that CAHG stem from a deep history of partially connected populations. This form of sociality allowed the coexistence of relatively large effective population sizes and local differentiation, with important implications for the evolution of genetic and cultural diversity in Homo sapiens. Significance We combined ethnographic, archaeological, genetic, and paleoclimatic data to model the dynamics of Central African hunter-gatherer populations over the past 120,000 years. We show, against common assumptions, that their distribution and density are explained by changing environments rather than by a displacement following recent farming expansions, and that they have maintained large population sizes and genetic diversity, despite fluctuations in niche availability. Our results provide insights into the evolution of genetic and cultural diversity in Homo sapiens.
- Published
- 2022
24. Mapping the Risk for West Nile Virus Transmission, Africa
- Author
-
García-Carrasco, José-María, primary, Muñoz, Antonio-Román, additional, Olivero, Jesús, additional, Segura, Marina, additional, and Real, Raimundo, additional
- Published
- 2022
- Full Text
- View/download PDF
25. Biogeografía aplicada al estudio de enfermedades zoonóticas: anticipando la localización de los brotes del virus del Nilo Occidental en España
- Author
-
García-Carrasco, José María, Muñoz-Gallego, Antonio Roman, Olivero, Jesús, and Real, Raimundo
- Subjects
Animales - Enfermedades - Previsiones ,Zoonosis ,Cuencas hidrográficas - España ,Patogeografía ,Virus del Nilo Occidental ,Favorabilidad ,Biogeografía ,Predicción ,Modelos de distribución - Abstract
El virus del Nilo Occidental es un patógeno que se transmite entre las aves por medio de mosquitos. Mientras que las aves son los reservorios de este virus, humanos y caballos pueden sufrir desde cuadros febriles hasta una enfermedad neuroinvasiva. En 2020 se produjo el mayor brote acontecido hasta la fecha en España, en el que se dieron 77 casos y 7 muertes. A partir de los casos detectados en el año 2020, en humanos y caballos, se han elaborado modelos de distribución para determinar qué condicionantes ambientales influyeron en la aparición de brotes. Ponemos de manifiesto la importancia de los caballos como centinelas, puesto que estos han permitido predecir los casos en humanos. Al mismo tiempo se ha detectado que los patrones espaciales de las zonas favorables para presentar casos se corresponden con las principales cuencas hidrográficas del país, lo que pone de manifiesto la importancia de gestionar la enfermedad a nivel de cuencas. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
- Published
- 2022
26. Biogeographical modelling of the species competitive interactions: a fuzzy logic approach
- Author
-
Romero Pacheco, David, Martín-Taboada, Adrián, Aliaga-Samanez, Alisa, Chamorro Sierra, Dario, Díaz-Ruiz, Francisco, Muñoz-Gallego, Antonio Roman, García-Carrasco, José María, Márquez, Ana Luz, Olivero, Jesús, and Real, Raimundo
- Subjects
Mammals ,Mamíferos ,Tortugas ,Biogeography ,Vipers ,Aves de presa ,Birds of prey ,Biogeografía ,Víboras ,Especies (Biología) - Conservación ,Conservation ,Favorability Function ,Turtles - Abstract
The environmental conditions of a territory determine to what degree the species are related to each other and to the environment. Species distribution models are used to establish relationships between the environment and the species distribution. Models based on fuzzy logic through the Favourability Function also allow the análisis of relationships between distributions of different taxa. By considering how the environment influences competition relationships between two species, we proposed the biogeographic analysis of three posible scenarios: i) sympatric coexistence; ii) environmental segregation; and iii) competitive exclusion. In order to identify these scenarios in different pairs of species with overlapping distributions, the Favourability Function and fuzzy logic tools were applied. Specifically, for each case, the favourability for each species and the fuzzy intersection between them, or “shared favourability”, was calculated. For each case, the relationship between the favourability for each species and the shared favourability was analyzed, highlighting the areas where either environmental segregation, competitive exclusion or sympatric coexistence is predicted. The results showed that the Favourability Function is a useful tool for analyzing large-scale biogeographical outcomes of ecological interactions between species. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
- Published
- 2022
27. Análisis del riesgo de transmisión de la encefalitis vírica por garrapatas: una aproximación biogeográfica
- Author
-
Cobos-Mayo, Marina, Pineda-Gil, Marta, Romero Pacheco, David, Aliaga-Samanez, Alisa, Real, Raimundo, Segura, Marina, and Olivero, Jesús
- Subjects
Favorabilidad ,Garrapatas ,Enfermedades transmitidas por garrapatas - Abstract
La garrapata Ixodes ricinus es el principal vector de la encefalitis vírica europea, una zoonosis que afecta a gran parte del continente europeo. En el ciclo zoonótico de esta enfermedad los micromamíferos son reservorios del virus, mientras que otros hospedadores, generalmente cérvidos, favorecen su presencia al llevar consigo garrapatas infectadas. La biogeografía aplicada a la elaboración de modelos de distribución, a través de la Función de Favorabilidad, permite la detección de áreas con potencial de riesgo de transmisión al ser humano. La identificación de nuevas áreas de transmisión proporciona información esencial a las autoridades sanitarias para la prevención y la respuesta rápida frente a nuevos brotes. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
- Published
- 2022
28. Using Chorotypes to Deconstruct Biogeographical and Biodiversity Patterns: The Case of Breeding Waterbirds in Europe
- Author
-
Real, Raimundo, Olivero, Jesús, Vargas, J. Mario, and Blackburn, Tim
- Published
- 2008
- Full Text
- View/download PDF
29. An analytically derived delineation of the West African Coastal Province based on bivalves
- Author
-
Caballero‐Herrera, José Antonio, primary, Olivero, Jesús, additional, von Cosel, Rudo, additional, and Gofas, Serge, additional
- Published
- 2021
- Full Text
- View/download PDF
30. Comparison of approaches to combine species distribution models based on different sets of predictors
- Author
-
Romero, David, Olivero, Jesús, Brito, José Carlos, and Real, Raimundo
- Published
- 2016
- Full Text
- View/download PDF
31. Worldwide dynamic biogeography of zoonotic and anthroponotic dengue
- Author
-
Aliaga-Samanez, Alisa, primary, Cobos-Mayo, Marina, additional, Real, Raimundo, additional, Segura, Marina, additional, Romero, David, additional, Fa, Julia E., additional, and Olivero, Jesús, additional
- Published
- 2021
- Full Text
- View/download PDF
32. Worldwide dynamic biogeography of zoonotic and anthroponotic dengue
- Author
-
Aliaga-Samanez, Alisa, Cobos-Mayo, Marina, Real, Raimundo, Segura, Marina, Romero, David, Fa, Julia E, Olivero, Jesús, Aliaga-Samanez, Alisa, Cobos-Mayo, Marina, Real, Raimundo, Segura, Marina, Romero, David, Fa, Julia E, and Olivero, Jesús
- Abstract
Dengue is a viral disease transmitted by mosquitoes. The rapid spread of dengue could lead to a global pandemic, and so the geographical extent of this spread needs to be assessed and predicted. There are also reasons to suggest that transmission of dengue from non-human primates in tropical forest cycles is being underestimated. We investigate the fine-scale geographic changes in transmission risk since the late 20th century, and take into account for the first time the potential role that primate biogeography and sylvatic vectors play in increasing the disease transmission risk. We apply a biogeographic framework to the most recent global dataset of dengue cases. Temporally stratified models describing favorable areas for vector presence and for disease transmission are combined. Our models were validated for predictive capacity, and point to a significant broadening of vector presence in tropical and non-tropical areas globally. We show that dengue transmission is likely to spread to affected areas in China, Papua New Guinea, Australia, USA, Colombia, Venezuela, Madagascar, as well as to cities in Europe and Japan. These models also suggest that dengue transmission is likely to spread to regions where there are presently no or very few reports of occurrence. According to our results, sylvatic dengue cycles account for a small percentage of the global extent of the human case record, but could be increasing in relevance in Asia, Africa, and South America. The spatial distribution of factors favoring transmission risk in different regions of the world allows for distinct management strategies to be prepared.
- Published
- 2021
33. Long-Term Changes in Game Species Over a Long Period of Transformation in the Iberian Mediterranean Landscape
- Author
-
Delibes-Mateos, Miguel, Farfán, Miguel Ángel, Olivero, Jesús, Márquez, Ana Luz, and Vargas, Juan Mario
- Published
- 2009
- Full Text
- View/download PDF
34. Mercurio en cabello de diferentes grupos ocupacionales en una zona de minería aurifera en el Norte de Colombia
- Author
-
Olivero Jesús, Mendonza Claudia, and Mestre Judith
- Subjects
Pelo/quimica ,Mercurio/análisis ,Minería ,Public aspects of medicine ,RA1-1270 - Published
- 1995
35. Human activities link fruit bat presence to Ebola virus disease outbreaks
- Author
-
Ministerio de Economía y Competitividad (España), Olivero, Jesús, Fa, John E., Farfán, Miguel Ángel, Márquez, A.L., Real, R., Juste, Javier, Leendertz, S.A., Nasi, R., Ministerio de Economía y Competitividad (España), Olivero, Jesús, Fa, John E., Farfán, Miguel Ángel, Márquez, A.L., Real, R., Juste, Javier, Leendertz, S.A., and Nasi, R.
- Abstract
A significant link between forest loss and fragmentation and outbreaks of Ebola virus disease (EVD) in humans has been documented. Deforestation may alter the natural circulation of viruses and change the composition, abundance, behaviour and possibly viral exposure of reservoir species. This in turn might increase contact between infected animals and humans. Fruit bats of the family Pteropodidae have been suspected as reservoirs of the Ebola virus. At present, the only evidence associating fruit bats with EVD is the presence of seropositive individuals in eight species and polymerase chain reaction-positive individuals in three of these. Our study investigates whether human activities can increase African fruit bat geographical ranges and whether this influence overlaps geographically with EVD outbreaks that, in turn, are favoured by deforestation. We use species observation records for the 20 fruit bat species found in favourable areas for the Ebola virus to determine factors affecting the bats' range inside the predicted Ebola virus area. We do this by employing a hypothetico-deductive approach based on favourability modelling. We show that the range of some fruit bat species is linked to human activities within the favourable areas for the Ebola virus. More specifically, the areas where human activities favour the presence of five fruit bat species overlap with the areas where EVD outbreaks in humans were themselves favoured by deforestation. These five species are as follows: Eidolon helvum, Epomops franqueti, Megaloglossus woermanni, Micropteropus pusillus and Rousettus aegyptiacus. Of these five, all but Megaloglossus woermanni have recorded seropositive individuals. For the remaining 15 bat species, we found no biogeographical support for the hypothesis that positive human influence on fruit bats could be associated with EVD outbreaks in deforested areas within the tropical forest biome in West and Central Africa. Our work is a useful first step allowing fur
- Published
- 2020
36. Predicting the spatio-temporal spread of West Nile virus in Europe
- Author
-
García-Carrasco, José-María, primary, Muñoz, Antonio-Román, additional, Olivero, Jesús, additional, Segura, Marina, additional, and Real, Raimundo, additional
- Published
- 2021
- Full Text
- View/download PDF
37. Integrating Fuzzy Logic and Statistics to Improve the Reliable Delimitation of Biogeographic Regions and Transition Zones
- Author
-
Olivero, Jesús, Márquez, Ana L., and Real, Raimundo
- Published
- 2013
- Full Text
- View/download PDF
38. Fuzzy Chorotypes as a Conceptual Tool to Improve Insight into Biogeographic Patterns
- Author
-
Olivero, Jesús, Real, Raimundo, and Márquez, Ana L.
- Published
- 2011
- Full Text
- View/download PDF
39. Modelling species distributions limited by geographical barriers: A case study with African and American primates
- Author
-
Aliaga‐Samanez, Alisa, primary, Real, Raimundo, additional, Vermeer, Jan, additional, and Olivero, Jesús, additional
- Published
- 2019
- Full Text
- View/download PDF
40. Species distribution models in climate change scenarios are still not useful for informing policy planning: an uncertainty assessment using fuzzy logic
- Author
-
Real, Raimundo, Luz Márquez, Ana, Olivero, Jesús, and Estrada, Alba
- Published
- 2010
- Full Text
- View/download PDF
41. Análisis biogeográfico del riesgo mundial de dengue
- Author
-
Aliaga-Samanez, Alisa, Cobos-Mayo, Marina, Real, Raimundo, Segura, Marina, and Olivero, Jesús
- Subjects
Zoonosis ,Prevención ,Patogeografía ,Biogeografía - Abstract
El dengue es una infección causada por un arbovirus del género flavivirus transmitido fundamentalmente por mosquitos Aedes en las zonas tropicales y subtropicales de África, América y Asia. Existen dos ciclos de transmisión: urbano y selvático. El primero ocurre entre humanos, y el segundo entre primates no humanos, si bien existe la posibilidad de transmisión al ser humano en el ciclo selvático. En la última década, ha aumentado sustancialmente la importancia del dengue como una amenaza para la salud y una prioridad para los servicios sanitarios y la economía. Por ello, es fundamental encontrar nuevas herramientas que permitan evaluar mejor el riesgo de transmisión de la enfermedad. La patogeografía aplica herramientas biogeográficas al estudio de la distribución de patógenos y de los factores que contribuyen a la aparición de nuevos brotes de enfermedad. Hasta el momento, se han publicado mapas de riesgo de dengue basados en la distribución de sus dos principales vectores, y exclusivamente centrados en el ciclo urbano. El presente estudio utiliza la Función de Favorabilidad como herramienta para definir las zonas de riesgo de transmisión de dengue al ser humano, basado en los casos registrados durante el s. XX, que pueden determinar la aparición de nuevos brotes a nivel mundial. Este estudio constituye la base para el posterior análisis de los cambios biogeográficos que la enfermedad está experimentando en el s. XXI. Se utilizan modelos que permiten detectar las zonas donde los factores histórico, ambiental, zoogeográfico y antropogénico podrían favorecer la transmisión. El factor histórico se ha representado mediante análisis de la tendencia puramente espacial mostrada por la enfermedad, y el factor zoogeográfico a través de patrones de distribución (corotipos) observados en los primates. Con este estudio se aportan nuevas metodologías con el fin de encontrar zonas de riesgo vinculados a enfermedades que combinen ciclos zoonóticos y antroponóticos. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Projecto del Plan Nacional de I+D+i Retos CGL2016-76747-R del Ministerio de Economía y Competividad, y Fondos FEDER
- Published
- 2019
42. La contribución de la biogeografía de los primates en la comprensión de la distribución de las enfermedades arbovirales
- Author
-
Aliaga-Samanez, Alisa, Real, Raimundo, Cobos-Mayo, Marina, Segura, Marina, and Olivero, Jesús
- Subjects
Patogeografía ,Función de favorabilidad ,Mosquitos ,Biogeografía ,Mamíferos - Enfermedades ,Vectores ,Ciclo selvático ,Ciclo urbano - Abstract
Las enfermedades virales transmitidas por artrópodos hematófagos (arbovirales) están entre las enfermedades infecciosas emergentes más importantes. Los cambios demográficos y en el transporte han facilitado mecanismos para que los virus salgan de su medio ecológico natural y se instalen en nuevas áreas, donde los vectores susceptibles proporcionan condiciones óptimas para el desarrollo de una epidemia. Las enfermedades virales son un problema de salud pública mundial, por lo que se requieren herramientas para comprender mejor la enfermedad. La patogeografía aplica herramientas biogeográficas al estudio de la distribución de patógenos y factores que contribuyen a la aparición de nuevos brotes de enfermedad. Muchas de las enfermedades virales incluyen ciclos urbanos y selváticos. La aparición de nuevos brotes requiere una combinación compleja de factores ambientales, antropogénicos, históricos y zoogeográficos que favorezcan la presencia del virus. Hasta hoy se han publicado mapas de riesgo centrados en el ciclo urbano. Este trabajo busca incluir el ciclo selvático, analizando la contribución del factor zoogeográfico, a través de la Función de Favorabilidad, para definir las zonas de riesgo de transmisión. Se han utilizado, como casos de estudio, dos enfermedades virales: la fiebre amarilla y el dengue. Ambas combinan los dos ciclos: urbano y selvático; el primero ocurre entre humanos, y el segundo entre primates no-humanos, existiendo la posibilidad de que, accidentalmente, el virus sea transmitido por el vector de primates no-humanos a humanos. Para integrar el ciclo selvático en el modelo de riesgo, se ha representado el factor zoogeográfico a través de patrones de distribución (corotipos) mostrados por los primates. Se ha observado en las dos enfermedades analizadas que incluir el factor zoogeográfico aumenta la favorabilidad para que se den nuevos casos. Este estudio aporta herramientas que permiten comprender mejor las enfermedades zoonóticas. - Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. - Proyecto CGL2016-76747-R del Ministerio Español de Economía, Industria y Competitividad y fondos FEDER - Beca FPU 16/06710 del Ministerio de Ciencia, Innovación y Universidades
- Published
- 2019
43. APICAMPUS, a project on Urban beekeeping developed at the University of Malaga
- Author
-
Trigo-Perez, Maria del Mar, Abdala-Diaz, Roberto Teofilo, Cabrera-Carrillo, Juan Antonio, López-Figueroa, Félix, Muñoz-Gallego, Antonio Roman, Olivero, Jesús, Palomo, L. Javier, Real, Raimundo, Recio-Criado, Maria Marta, Picornell, Antonio, Redolosis, Yasmin, Sellés, Bárbara, Vega, Julia, Gil Gómez, José, and G, Eva María
- Subjects
Urbano ,Polen ,Abejas ,Miel ,Apicultura - Abstract
Urban beekeeping has ourished in the last years, with many institutions interested in creating colonies on their roofs. Bees and other animal pollinators contribute to increase food production, making bees essential for agriculture and plant life, in general. And, as bee populations decline, the need for secondary sources of pollinators for agricultural production grows. The Vice-rectorate of Smart-Campus of the University of Malaga focuses on two fundamen tal aspects: understanding the UMA campus as a Smart City in itself and marking new lines of action at the academic level that will make the UMA an international benchmark in Sustainability. Framed in the program above mentioned, APICAMPUS is a pilot and interdisciplinary project that involves researchers and students belonging to 4 departments of 2 university faculties together with Bee Garden Malaga, a multi-disciplinary environmental company with thematic areas on beekeeping. The project aims to promote the development of beekeeping in urban environments, raising awareness about the importance of the bees as pollinating insects, as well as the use of the beehive products. For the above mentioned, two beehives Langstroth type, were installed at the roof of the Faculty of Science, a traditional wooden one, and another made of polystyrene. The main interest of this project lies in the monitoring of the hives by means of temperature and humidity sensors, electronic scales for weight control, video cameras located inside and outside of them, together with the use of bee-marking systems. Additionally, analysis for characterizing and study the origin and the properties of the beehive products will be carried out, as well as field monitoring to highlight the situation of pollinators at the University Campus of Teatinos. Although the samplings have barely begun, this communication intends to be the offcial presentation of the project APICAMPUS to the scientific community. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
- Published
- 2019
44. Brotes de Ébola y la presencia de murciélagos en áreas humanizadas: un análisis biogeográfico
- Author
-
Olivero, Jesús
- Subjects
Zoonosis ,Quirópteros ,Deforestación ,Enfermedad hemorrágica vírica - Abstract
Una vez demostrada la relación positiva entre deforestación brotes de Ébola, es necesario investigar los mecanismos que median en ella. Nuestro objetivo es tratar de comprobar el posible papel de los murciélagos de la fruta (Pteropodidae) en la transmisión del Ébola en zonas deforestadas, mediante un enfoque hipotético-deductivo basado en la biogeografía de estas especies. Los resultados muestran que las áreas en las que la distribución de 7 especies es favorecida por las actividades humanas se superponen significativamente con los brotes de Ébola que han podido vincularse a la deforestación. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. USAID; UKAID; Ministerio de Economía, Industria y Competitividad
- Published
- 2019
45. Genetics and fuzzy logic unravel the historical biogeography of European rabbit subspecies in the species' native range
- Author
-
Díaz-Ruiz, Francisco, Márquez, Ana Luz, Farfán, Miguel Ángel, Delibes-Mateos, Miguel, Castro, Francisca, Ramírez, Esther, Villafuerte, Rafael, Olivero, Jesús, and Real, Raimundo
- Abstract
Resumen del trabajo presentado a la 9th Biennial Conference of the International Biogeography Society, celebrada en Malaga (España) del 8 al 12 de enero de 2019., The European rabbit Oryctolagus cuniculus is native to the lberian Península (IP), where the two known rabbit subspecies occur. Previous studies have suggested that O.c. cuniculus distribution extends towards the north-east of the IP, while O.c. algirus is restricted to south-westem regions; a transition area crosses the IP from the north-west to the south-east. Here, we revisited rabbit subspecies distribution to define with greater precision historical distribution areas, identifying the potential expansion cores and evaluating the spatial interaction between both subspecies expansion waves. We used different diagnostic loci located on mitochondrial and nuclear DNA to classify in any of the subspecies 4500 rabbits from 197 populations distributed throughout the IP. Using populations where all the rabbits were either O.c. cuniculus or O.c. algirus, we determined the spatial structure of the two molecules independently, by using a trend surface analysis based on favourability functions. We then combined the different spatial structures using fuzzy logic operations. Two areas in the Guadalquivir and Ebro valleys were identified as respective expansion cores. In comparison to previous studies, we found an increase in the distribution range of O.c. algirus to the northwest anda shift of the transition zone eastwards in its northern area. Our results suggest that competitive exclusion may ha ve a greater role than expected in regulating the expansion of both subspecies. The spatial structure of these genes reflects, and thus may be used to unravel, the historical biogeography of these subspecies, provided that we possess appropriate analytical tools, such as fuzzy logic.
- Published
- 2019
46. La Favorabilidad Compartida en las relaciones biogeográficas de especies ecológicamente relacionadas
- Author
-
José-María García-Carrasco, Aliaga-Samanez, Alisa, Chamorro, Dario, Díaz-Ruiz Francisco, Martín-Taboada, Adrián, Márquez, Ana Luz, Olivero, Jesús, Antonio-Román Muñoz, Martínez-Freiría, Fernando, Jam Vermeer, and Real, Raimundo
- Subjects
Favorabilidad ,Interacciones ecológicas ,Biogeografía - Abstract
Las interacciones interespecíficas están condicionadas por el ambiente en el que se desarrollan. Los modelos de distribución de especies basados en la Función de Favorabilidad, aplicando operaciones de lógica difusa, permiten el estudio de las relaciones biogeográficas entre diferentes especies, y entre ellas y su entorno. Esta aproximación es una herramienta útil para analizar e identificar áreas potenciales donde con mayor probabilidad tienen lugar diferentes interacciones ecológicas: i) segregación ambiental cuando el ambiente es desfavorable para al menos una especie, limitando su presencia en la zona, ii) coexistencia simpátrica cuando los efectos de la competencia son minimizados por un ambiente muy favorable, o iii) exclusión competitiva cuando una de las especies tiene ventaja compitiendo por los recursos. En este estudio se utilizan las zonas de contacto de diferentes grupos de vertebrados con características ecológicas similares, y en diferentes contextos geográficos, para poner de manifiesto la utilidad de esta herramienta en el estudio de las interacciones ecológicas entre organismos desde una perspectiva macroecológica. Para ello clasificamos la favorabilidad compartida (Fc) por cada grupo de especies en baja (Fc < 0.2) y alta (Fc > 0.8), donde se predice una segregación ambiental y una coexistencia simpátrica, respectivamente, y áreas de favorabilidad compartida intermedia (0.2 < Fc < 0.8), donde las interacciones bióticas podrían limitar la presencia de las especies. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
- Published
- 2019
47. El papel de los mamíferos en la distribución mundial de la enfermedad de Lyme
- Author
-
Martín-Taboada, Adrián, Aliaga-Samanez, Alisa, Segura, Marina, and Olivero, Jesús
- Subjects
Reservorios ,Roedores ,Patogeografía ,Garrapatas ,Vectores ,Prevención de riesgo - Abstract
La enfermedad o borreliosis de Lyme es una zoonosis causada por espiroquetas del género Borrelia, trasmitida al ser humano por garrapatas Ixodes y Haemaphysalis. Los mamíferos de pequeño tamaño de los órdenes Rodentia, Lagomorpha y Eulipotypla poseen un papel importante como reservorios de la enfermedad. Mediante un análisis patogeográfico, se ha construido un modelo espacial de riesgo de esta enfermedad a escala mundial. Se han realizado modelos de favorabilidad a partir de la distribución de los casos endémicos de enfermedad de Lyme, y sobre la base de variables potencialmente influyentes en la existencia de riesgo vinculadas a cuatro factores: 1) condiciones ambientales; 2) zonas favorables para la presencia de vectores; 3) patrones de distribución de los pequeños mamíferos con potencial de ser reservorios; 4) especies de mamíferos que favorecen la dispersión y el mantenimiento de las poblaciones de garrapatas. El modelo de favorabilidad más significativo predice una distribución del riesgo de enfermedad de Lyme por toda la región holártica, salvo en Groenlandia y Siberia. Muestra, así mismo, posibles focos nuevos de enfermedad en Centroamérica, el norte de África, Oriente Próximo y Asia Central. Entre los factores que resultan relevantes en el modelo destacan la presencia de bosques caducifolios (que enmarcan las condiciones ambientales predominantes en Norteamérica y Eurasia septentrional), la presencia humana (representada por la cercanía de ferrocarriles), y la existencia de búfalos (dispersantes de garrapatas en Asia). No se encuentra en el modelo la distribución de los pequeños mamíferos, tal vez debido al carácter ubiquista de algunas especies reservorio. Se discuten las posibles zonas de riesgo y se pone de manifiesto que la patogeografía y la consideración de especies del ciclo zoonótico proporcionan herramientas útiles para la prevención de zoonosis relevantes para la salud humana. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
- Published
- 2019
48. Mapping the availability of bushmeat for consumption in Central African cities
- Author
-
Fa, John E, Wright, Juliet, Funk, Stephan M, Márquez, Ana Luz, Olivero, Jesús, Farfán, Miguel Ángel, Guio, Fanny, Mayet, Luc, Malekani, Divin, Holo Louzolo, Charles, Mwinyihali, Robert, Wilkie, David S, Wieland, Michelle, Fa, John E, Wright, Juliet, Funk, Stephan M, Márquez, Ana Luz, Olivero, Jesús, Farfán, Miguel Ángel, Guio, Fanny, Mayet, Luc, Malekani, Divin, Holo Louzolo, Charles, Mwinyihali, Robert, Wilkie, David S, and Wieland, Michelle
- Abstract
The trade of bushmeat from rural areas to supply burgeoning cities is a major conservation and livelihood concern. Using a whole-city sampling strategy we mapped the distribution and numbers of meat outlets in the Kinshasa-Brazzaville metropolitan area, two neighboring capital cities in Central Africa. We show that both cities differ in the number and density of meat outlets, with more in Brazzaville per area sampled and inhabitants. The number of meat outlets is related to human population densities and primarily concentrated along the banks of the Congo River, in the more affluent areas of the cities. Across the two cities, roughly 22% of all sampled markets (50% in Brazzaville and 19% in Kinshasa) and 24% of all visited restaurants (24% in each city) were selling bushmeat during our survey. Despite the relatively low number of establishments offering bushmeat for sale, extrapolated to the entire area and population of both cities, we expect the overall amounts of wild animal meats consumed per annum to be significantly high. We suggest that the supply of such amounts of wild animal meat will strongly impact the animal populations sourcing these cities. Our data also indicate that the number of domestic meat outlets may be adequate to supply urban dwellers with sufficient animal protein.
- Published
- 2019
49. Favourability for the presence of wild rabbit warrens in motorway verges: Implications for the spread of a native agricultural pest species
- Author
-
Rouco, Carlos, Farfán, Miguel Ángel, Olivero, Jesús, Arias de Reyna, LM, Villafuerte, Rafael, Delibes-Mateos, Miguel, Rouco, Carlos, Farfán, Miguel Ángel, Olivero, Jesús, Arias de Reyna, LM, Villafuerte, Rafael, and Delibes-Mateos, Miguel
- Abstract
Pest species cause significant ecological, social and economic impacts, and programs to control them usually target specific landscape features when pests use these to disperse. Roads or railways are often used by pest species as dispersal corridors, but little is known about the specific characteristics of these human infrastructures that facilitate pest species dispersal. This is particularly evident in the case of native agricultural vertebrate pests like the European wild rabbit (Oryctolagus cuniculus) in the Iberian Peninsula (IP). Rabbit damage to agricultural production in IP has increased notably in recent years. This study uses a ‘favourability function’ to model the extent to which macroecological favourable conditions for rabbits and different fine-scale variables, including environmental, anthropogenic and agricultural factors, favour the presence of rabbit warrens on the verges of a motorway network in southern IP. For this purpose, we collected rabbit warren locations during car transects using CyberTraker 3.0 installed in a pad along 787 km of motorways. Our results revealed that rabbit warren distribution was widespread along the verges. Rabbit warren presence correlated positively with the presence of olive groves and with macroecological favourable conditions for rabbits. Our results provide strong evidence that rabbits use motorway verges, which are likely to act as dispersal corridors across landscapes. Additionally, our innovative approach, based on a rabbit warren index, the favourability function and a combination of local and macroecological predictors, could be used in many other areas where rabbits cause crop damage to make fine-scale predictions of high risk stretches and, therefore, where to apply mitigation measures.
- Published
- 2019
50. Atlantic influence in the demersal Mediterranean fish fauna: to what extent is the Alboran Sea part of the Atlantic Ocean?
- Author
-
Gil de Sola, Luis, Cartes, Joan Enric, Olivero, Jesús, Tello, Olvido, Lloris, Domingo, Bruno, J., Ministerio de Economía y Competitividad (España), and European Commission
- Subjects
Demersal ,Deep-sea ,Macrobenthic ,Surveys ,Alboran Sea - Abstract
International Council for the Exploration of the Sea (ICES) - Conseil International pour l'Exploration de la Mer (CIEM) Annual Science Conference, 18-21 September 2017, Fort Lauderdale, Florida, USA.-- 1 page, 3 figures, 1 table, We analyzed and discussed the types of distribution, existing for 117 species (of 269) of deep demersal fishes distributed along the North Alborán Sea, Gulf of Vera, Gulf of Alicante and Balearic Sea (Ebro Delta and Tramontana). Data from 19 consecutive years (1994-2012) surveys, with the same sampling protocol (Bertrand et al., 2002), were used to characterize the demersal fishes assemblages inhabiting the deep Mediterranean Spanish bathyal muddy bottoms (200-800 m). Due to relative stability of abiotic conditions in this depths, we theorized about the relevance of Atlantic influence on marine fauna, its distribution according to depth, type of substrate and importance of fishing in certain areas where the local trawling fleet is concentrated, In this paper we analyzed and discussed the types of distribution, existing for 117 species of demersal fishes distributed along the North Alborán Sea, Gulf of Vera, and Balearic Sea (Alicante, Ebro Delta and Blanes coast). Data from 19 consecutive years (1994-2012) surveys, with similar sampling protocol, were used to characterise the demersal fishes assemblages presents in the Mediterranean Spanish circalitoral muddy bottoms (200-800 m)Due to relative stability of abiotic conditions in this depths, we theorized about the relevance of Atlantic marine fauna, the distribution according to the depth, type of substrate, condition and importance of fishing in certain areas where the local trawlingfleet is concentrated.On the one hand, a qualitative approach has been made by means of a modeling (MACOQUI) as well as a quantitative (ind./km2) Thus it has been possible to see that the species of Atlantic origin present a very pronounced latitudinal gradient in the depth strata discriminated.We studied spatial distribution of demersal resources on muddy bottoms in the depth range 200-800 m within the General Fisheries Commission for the Mediterranean (GFCM) geographical sub-unit 1, 2 and 6, and assessed management implications of our results
- Published
- 2018
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.