Person:
López Teixido, Alberto

First Name

Alberto

Last Name

López Teixido

URI

https://hdl.handle.net/20.500.14352/87101

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Ciencias Biológicas

Department

Biodiversidad, Ecología y Evolución

Area

Botánica

Identifiers

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Search Results

Now showing 1 - 8 of 8

Major biases and knowledge gaps on fragmentation research in Brazil: Implications for conservation
(Biological Conservation, 2020) López Teixido, Alberto; Gonçalves, Stela; Fernández-Arellano, Gileberto; Dáttilo, Wesley; Izzo, Thiago; Layme, Viviane; Moreira, Leonardo; Quintanilla, Luis
Habitat loss and fragmentation are among the main threats to global biodiversity and ecosystem services. However, major research biases and knowledge shortfalls in some geographical regions, taxonomic groups and responses studied are recurrent in fragmentation-related research. Therefore, detecting these biases and associated gaps is crucial to steer future research efforts and to guide applicable conservation policies. Here we conducted an exhaustive literature review to evaluate biases on fragmentation research across biomes, taxonomic groups, species responses and fragmentation metrics in Brazil. Overall, we analysed 716 papers, comprising a database with 26 taxonomic groups and 1173 cases studied across the six Brazilian biomes. In general, we observed that fragmentation-related research was biogeographically biased towards forest biomes. Specifically, the Atlantic Forest, the most populated and deforested Brazilian biome, comprised the highest number of studies (63%), while non-forest biomes were largely underrepresented. We also detected a high positive relative taxonomic bias for birds and mammals, while many insect taxa were disproportionately underrepresented in the literature. Altogether, assemblage-level species responses (abundance, diversity and richness) comprised 72% of study cases. Moreover, fragment size was clearly the most considered metric in the studies (43%) followed by habitat quality and edge effects. Our findings indicate major information deficits with regard to fragmentation-related research among taxonomic groups and amongst biomes in a megadiverse country. Therefore, we suggest that fragmentation research conducted in Brazil needs to consider undersampled taxa and to be urgently extended to increasingly degraded non-forest biomes in order to avoid inappropriate inferences.
Global homogenization of the structure and function in the soil microbiome of urban greenspaces
(Science Advances, 2021) Delgado-Baquerizo, Manuel; Eldridge, David J.; Liu, Yu-Rong; Sokoya, Blessing; Wang, Jun-Tao; Hu, Hang-Wei; He, Ji-Zheng; Bastida, Felipe; Moreno, José L.; Bamigboye, Adebola R.; Blanco-Pastor, José L.; Cano-Díaz, Concha; Illán, Javier G.; Makhalanyane, Thulani P.; Siebe, Christina; Trivedi, Pankaj; Zaady, Eli; Verma, Jay Prakash; Wang, Ling; Wang, Jianyong; Grebenc, Tine; Peñaloza-Bojacá, Gabriel F.; Nahberger, Tina U.; López Teixido, Alberto; Zhou, Xin-Quan; Berdugo, Miguel; Duran, Jorge; Rodríguez, Alexandra; Zhou, Xiaobing; Alfaro, Fernando; Abades, Sebastian; Plaza, César; Rey Muñoz, Ana Isabel; Singh, Brajesh K.; Tedersoo, Leho; Fierer, Noah
The structure and function of the soil microbiome of urban greenspaces remain largely undetermined. We conducted a global field survey in urban greenspaces and neighboring natural ecosystems across 56 cities from six continents, and found that urban soils are important hotspots for soil bacterial, protist and functional gene diversity, but support highly homogenized microbial communities worldwide. Urban greenspaces had a greater proportion of fast-growing bacteria, algae, amoebae, and fungal pathogens, but a lower proportion of ectomycorrhizal fungi than natural ecosystems. These urban ecosystems also showed higher proportions of genes associated with human pathogens, greenhouse gas emissions, faster nutrient cycling, and more intense abiotic stress than natural environments. City affluence, management practices, and climate were fundamental drivers of urban soil communities. Our work paves the way toward a more comprehensive global-scale perspective on urban greenspaces, which is integral to managing the health of these ecosystems and the well-being of human populations.
Environmental filtering controls soil biodiversity in wet tropical ecosystems
(Soil Biology and Biochemistry, 2022) Haiying Cui; Peter M. Vitousek; Sasha C. Reed; Wei Sun; Blessing Sokoya; Bamigboye, Adebola R.; Verma, Jay Prakash; Mukherjee, Arpan; Peñaloza-Bojacá, Gabriel F.; López Teixido, Alberto; Trivedi, Pankaj; He, Ji-Zheng; Hu, Hang-Wei; Png, Kenny; Delgado-Baquerizo, Manuel
The environmental factors controlling soil biodiversity along resource gradients remain poorly understood in wet tropical ecosystems. Aboveground biodiversity is expected to be driven by changes in nutrient availability in these ecosystems, however, much less is known about the importance of nutrient availability in driving soil biodiversity. Here, we combined a cross-continental soil survey across tropical regions with a three decades' field experiment adding nitrogen (N) and phosphorus (P) (100 kg N ha−1y−1 and 100 kg P ha−1y−1) to Hawai'ian tropical forests with contrasting substrate ages (300 and 4,100,000 years) to investigate the influence of nutrient availability to explain the biodiversity of soil bacteria, fungi, protists, invertebrates and key functional genes. We found that soil biodiversity was driven by soil acidification during long-term pedogenesis and across environmental gradients, rather than by nutrient limitations. In fact, our results showed that experimental N additions caused substantial acidification in soils from Hawai'i. These declines in pH were related to large decreases in soil biodiversity from tropical ecosystems in four continents. Moreover, the microbial activity did not change in response to long-term N and P additions. We concluded that environmental filtering drives the biodiversity of multiple soil organisms, and that the acidification effects associated with N additions can further create substantial undesired net negative effects on overall soil biodiversity in naturally tropical acid soils. This knowledge is integral for the understanding and management of soil biodiversity in tropical ecosystems globally.
Project number: 10
Materiales para la comprensión y conservación de la biodiversidad olvidada de los bosques ibéricos
(2024) Mairal Pisa, Mario José; Vila Viçosa, Carlos; Molino De Miguel, Sonia; Casal Calvar, Celia; Rubiales Jiménez, Juan Manuel; Sánchez Hernández, Héctor; Medina Bujalance, Rafael; Santos Rivilla, Guillermo; Aguado Lara, Ángela; López Teixido, Alberto
El proyecto tuvo como objetivo principal reconectar la sociedad con el medio ambiente, promoviendo la conservación de la biodiversidad y enfrentando los desafíos del cambio climático. Específicamente, se centró en aumentar el conocimiento y la conciencia sobre la biodiversidad de los árboles y arbustos ibéricos del género Quercus, fortalecer las habilidades científicas de los estudiantes, mejorar la educación en biodiversidad, desarrollar herramientas para la conservación, fomentar la inserción laboral y el emprendimiento, internacionalizar la docencia universitaria y promover la educación ambiental y la sostenibilidad. Los hitos alcanzados incluyen expediciones de campo para recolectar y documentar muestras vegetales, la integración de estos materiales en prácticas educativas, y el desarrollo de recursos educativos innovadores. La metodología empleada abarcó desde la planificación de las expediciones y recolección de muestras, hasta su análisis en laboratorio e integración en el plan educativo. El equipo multidisciplinar que llevó a cabo el proyecto demostró un compromiso excepcional, logrando un impacto significativo en la investigación y educación en biodiversidad vegetal.
The global distribution and environmental drivers of the soil antibiotic resistome
(Microbiome, 2022) Delgado-Baquerizo, Manuel; Hu, Hang-Wei; Maestre, Fernando T.; Guerra, Carlos A.; Eisenhauer, Nico; Eldridge, David J.; Zhu, Yong-Guan; Chen, Qing-Lin; Trivedi, Pankaj; Du, Shuai; Makhalanyane, Thulani P.; Verma, Jay Prakash; Gozalo, Beatriz; Ochoa, Victoria; Asensio, Sergio; Wang, Ling; Zaady, Eli; Illán, Javier G.; Siebe, Christina; Grebenc, Tine; Zhou, Xiaobing; Liu, Yu-Rong; Bamigboye, Adebola R.; Blanco-Pastor, José L.; Duran, Jorge; Rodríguez, Alexandra; Mamet, Steven; Alfaro, Fernando; Abades, Sebastian; López Teixido, Alberto; Peñaloza-Bojacá, Gabriel F.; Molina-Montenegro, Marco A.; Torres-Díaz, Cristian; Pérez, Cecilia; Gallardo, Antonio; García-Velázquez, Laura; Hayes, Patrick E.; Neuhauser, Sigrid; He, Ji-Zheng
Background Little is known about the global distribution and environmental drivers of key microbial functional traits such as antibiotic resistance genes (ARGs). Soils are one of Earth’s largest reservoirs of ARGs, which are integral for soil microbial competition, and have potential implications for plant and human health. Yet, their diversity and global patterns remain poorly described. Here, we analyzed 285 ARGs in soils from 1012 sites across all continents and created the first global atlas with the distributions of topsoil ARGs. Results We show that ARGs peaked in high latitude cold and boreal forests. Climatic seasonality and mobile genetic elements, associated with the transmission of antibiotic resistance, were also key drivers of their global distribution. Dominant ARGs were mainly related to multidrug resistance genes and efflux pump machineries. We further pinpointed the global hotspots of the diversity and proportions of soil ARGs. Conclusions Together, our work provides the foundation for a better understanding of the ecology and global distribution of the environmental soil antibiotic resistome.
Towards the flower economics spectrum
(New Phytologist, 2020) Roddy, Adam B.; Martínez‐Perez, Cecilia; López Teixido, Alberto; Cornelissen,Tatiana G.; Olson, Mark E.; Oliveira, Rafael S.; Silveira, Fernando A. O.
Understanding how floral traits affect reproduction is key for understanding genetic diversity, speciation, and trait evolution in the face of global changes and pollinator decline. However, there has not yet been a unified framework to characterize the major trade-offs and axes of floral trait variation. Here, we propose the development of a floral economics spectrum (FES) that incorporates the multiple pathways by which floral traits can be shaped by multiple agents of selection acting on multiple flower functions. For example, while pollinator-mediated selection has been considered the primary factor affecting flower evolution, selection by nonpollinator agents can reinforce or oppose pollinator selection, and, therefore, affect floral trait variation. In addition to pollinators, the FES should consider nonpollinator biotic agents and floral physiological costs, broadening the drivers of floral traits beyond pollinators. We discuss how coordinated evolution and trade-offs among floral traits and between floral and vegetative traits may influence the distribution of floral traits across biomes and lineages, thereby influencing organismal evolution and community assembly.
Revisiting florivory: an integrative review and global patterns of a neglected interaction
(New Phytologist, 2021) Boaventura, Maria Gabriela; Villamil, Nora; López Teixido, Alberto; Tito, Richard; Vasconcelos, Heraldo L.; Silveira, Fernando A. O.; Cornelissen, Tatiana
Florivory is an ancient interaction which has rarely been quantified due to a lack of standardized protocols, thus impairing biogeographical and phylogenetic comparisons. We created a global, continuously updated, open-access database comprising 180 species and 64 families to compare floral damage between tropical and temperate plants, to examine the effects of plant traits on floral damage, and to explore the eco-evolutionary dynamics of flower–florivore interactions. Flower damage is widespread across angiosperms, but was two-fold higher in tropical vs temperate species, suggesting stronger fitness impacts in the tropics. Flowers were mostly damaged by chewers, but neither flower color nor symmetry explained differences in florivory. Herbivory and florivory levels were positively correlated within species, even though the richness of the florivore community does not affect florivory levels. We show that florivory impacts plant fitness via multiple pathways and that ignoring this interaction makes it more difficult to obtain a broad understanding of the ecology and evolution of angiosperms. Finally, we propose a standardized protocol for florivory measurements, and identify key research avenues that will help fill persistent knowledge gaps. Florivory is expected to be a central research topic in an epoch characterized by widespread decreases in insect populations that comprise both pollinators and florivores.
Project number: 10
Materiales para la comprensión y conservación de la biodiversidad olvidada de los bosques ibéricos
(2024) Mairal Pisa, Mario José; Vila Viçosa, Carlos; Molino De Miguel, Sonia; Rubiales Jiménez, Juan Manuel; Sánchez Hernández, Héctor; Medina Bujalance, Rafael; Santos Rivilla, Guillermo; Aguado Lara, Ángela; López Teixido, Alberto
El proyecto tuvo como objetivo principal reconectar la sociedad con el medio ambiente, promoviendo la conservación de la biodiversidad y enfrentando los desafíos del cambio climático. Específicamente, se centró en aumentar el conocimiento y la conciencia sobre la biodiversidad de los árboles y arbustos ibéricos del género Quercus, fortalecer las habilidades científicas de los estudiantes, mejorar la educación en biodiversidad, desarrollar herramientas para la conservación, fomentar la inserción laboral y el emprendimiento, internacionalizar la docencia universitaria y promover la educación ambiental y la sostenibilidad. Los hitos alcanzados incluyen expediciones de campo para recolectar y documentar muestras vegetales, la integración de estos materiales en prácticas educativas, y el desarrollo de recursos educativos innovadores. La metodología empleada abarcó desde la planificación de las expediciones y recolección de muestras, hasta su análisis en laboratorio e integración en el plan educativo. El equipo multidisciplinar que llevó a cabo el proyecto demostró un compromiso excepcional, logrando un impacto significativo en la investigación y educación en biodiversidad vegetal.