Person:
Delgado Sáez, Juan Antonio

First Name

Juan Antonio

Last Name

Delgado Sáez

URI

https://hdl.handle.net/20.500.14352/74365

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Ciencias Biológicas

Department

Biodiversidad, Ecología y Evolución

Area

Ecología

Identifiers

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Now showing 1 - 10 of 30

Guía Rápida de SPSS v.25 (Prácticas de Ecología)
(2019) López-Pintor Alcón, Antonio; Barandica Fernández, Jesús; Acosta Gallo, Belén; Casado González, Miguel Ángel; Delgado Sáez, Juan Antonio; García Avilés, Javier; de las Heras Puñal, Paloma; Herrero de Jáuregui, Cristina; Jiménez Escobar, María Dolores; López de Pablo, Carlos Tomás; Martín de Agar Valverde, Pilar; Martín Zorrilla, Juan Vicente; Morcillo Alonso, Felipe; Ortega Quero, Marta; Rovira Sanroque, José Vicente; Serrano Talavera, José Manuel
Guía rápida de SPSS v.25 para usar en las Prácticas de Ecología (Grado en Biología, 3er curso)
Project number: 255
Renovación de las prácticas de Ecología: Aprendiendo Ecología Acuática
(2022) Sánchez Montoya, María Mar; Rovira Sanroque, José Vicente; Ortega Quero, Marta; Acosta Gallo, Belén; López Pintor, Antonio; Andivia, Enrique; Herrero Méndez, Asier; Concepción Cuevas, Elena Daniela; Delgado Sáez, Juan Antonio; García Fungairiño, Sara; Schmitz García, María Fe; Rescia Perazzo, Alejandro Javier; Martín Zorrilla, Juan Vicente; Gómez Juaristi, Miren; Rodríguez Sousa, Antonio Alberto; Luque Martín, Yaiza; Herrero Jaúregui, Cristina
Project number: 235
Programa piloto de uso del portafolio como herramienta docente en el Grado de Biología
(2020) Delgado Sáez, Juan Antonio; Jiménez Escobar, María Dolores; Pias Couso, María Beatriz; Herrero De Jáuregui, Cristina; Pérez Tris, Javier; Sánchez Jiménez, Abel; González Martín, Antonio; Saura Álvarez, María; Rodríguez Sousa, Antonio Alberto; Pardos Martínez, Fernando; Sánchez De Dios, Rut; Gutiérrez López, Mónica; Schmitz García, María Fe; Ramírez García, Álvaro; Vergara Carretero, Susana; Pulido Delgado, Francisco; Santos Martínez, Tomas; Acosta Gallo, Belén; Panetsos Petrova, Fivos; Arriero Higueras, Elena; Almodovar Pérez, Ana María; López De Pablo, Carlos Tomas; Alonso Campos, Germán; Miguel Garcinuño, José Manuel De; Gabriel Y Galán Moris, José María; Hernández Pazmiño, Nathalia
Memoria final del proyecto de Innovación educativa "Programa piloto de uso del portafolio como herramienta docente en el Grado de Biología"
The Hydraenidae of Cuba (Insecta: Coleoptera) II: Morphology of preimaginal stages of six species and notes on their biology
(Zootaxa, 2017) Deler-Hernández, Albert; Delgado Sáez, Juan Antonio
Preimaginal stages of the six species of Hydraenidae presently known from Cuba were obtained by rearing adults in the laboratory. Eggs of Hydraena perkinsi Spangler, 1980, H. decui Spangler, 1980 and H. franklyni Deler-Hernández & Delgado, 2012 are described and illustrated for the first time. The first instar larva of Gymnochthebius fossatus (LeConte, 1855) is redescribed, adding some new remarkable morphological characters including what could be the first abdominal egg-burster reported for this family. All larval instars of H. perkinsi, H. guadelupensis Orchymont, 1923 and Ochthebius attritus LeConte, 1878 are described and illustrated for the first time, with a special emphasis on their chaetotaxy. The second instar larva of G. fossatus along with first and third instar larvae of H. decui and H. franklyni are also studied for the first time. The pupal morphology and vestiture of a species belonging to the genus Hydraena are described for the first time, based on the pupa of H. perkinsi. Biological notes for several preimaginal stages of the studied species are also given.
Data on samara morphology and wind dispersal in the invasive tree Ailanthus altissima
(2019) Planchuelo, Greg; Catalán, Pablo; Delgado Sáez, Juan Antonio; Murciano Cespedosa, Antonio
The data presented in this paper is supporting the research article “Estimating wind dispersal potential in Ailanthus altissima: The need to consider the three-dimensional structure of samaras” [1]. We analyzed the estimation of samara's wind dispersal potential through a group of morphological variables that succeed in describing the three-dimensional nature of samaras. We present here a dataset containing 8 morphological variables of 200 samaras belonging to 5 different individuals of the invasive tree Ailanthus altissima (Mill.) Swingle. Additionally, we present the average descent velocity of each of the samaras, which was recorded by releasing 5 times each samara under controlled and reproducible conditions. The data set is structured in a single spreadsheet where we also included the samara and the individual identity code of the tree.
Project number: 125
Seguimiento de los efectos del cambio climático en el Campus
(2023) Delgado Sáez, Juan Antonio; Jiménez Escobar, María Dolores; Pérez Corona, María Esther; Marín Blnaco, Juan Carlos; Fernández Sousa, David; García Osuna, David; García Bravo, Cristian; García Matesanz, Sara; Giménez Soutullo Ferrán; Mediavilla Bailo, Claudia; Ruiz Repiso, Ángela; Serrano Arranz, Sofía; Sorrez González, Rafael
Se presenta la memoria del Proyecto de Innovación docente titulado Seguimiento de los efectos del cambio climático en el Campus. En este proyecto se desarrollan tres objetivos: 1) Capacitar al estudiante a la obtención de datos con validez científica, comprometiéndose con la toma cuidadosa y estandarizada de mediciones que permitan un análisis fiable y repetible, mientras realizan trabajo en equipo; 2) Reforzar el posicionamiento de la Ecología como ciencia que se basa en datos para la elaboración de hipótesis y el rechazo o apoyo a las predicciones que se deriven de estas hipótesis. Se trata de evitar que dogmaticen la teoría y vean los conceptos de la asignatura ligados a la realidad observable; y 3) Enseñar diversas técnicas de medición que no son aplicables para los grupos grandes que manejamos en las prácticas.
Erratum to: Field patterns of temporal variations in the light environment within the crowns of a Mediterranean evergreen tree (Olea europaea)
(Trees, 2016) Ventre-Lespiaucq, Agustina B.; Escribano Rocafort, Adrián Gaspar; Delgado Sáez, Juan Antonio; Jiménez Escobar, María Dolores; Rubio de Casas, Rafael; Granado Yela, Carlos; Balaguer Núñez, Luis
The expression of light-related leaf functional traits depends on the location of individual leaves within the crown of isolated Olea europaea trees
(Annals of Botany, 2016) Escribano Rocafort, Adrián Gaspar; Ventre-Lespiaucq, Agustina B.; Granado Yela, Carlos; Rubio de Casas, Rafael; Delgado Sáez, Juan Antonio; Balaguer, Luis
Background: The spatial arrangement and expression of foliar syndromes within tree crowns can reflect the coupling between crown form and function in a given environment. Isolated trees subjected to high irradiance and concomitant stress may adjust leaf phenotypes to cope with environmental gradients that are heterogeneous in space and time within the tree crown. The distinct expression of leaf phenotypes among crown positions could lead to complementary patterns in light interception at the crown scale. Methods: We quantified eight light-related leaf traits across 12 crown positions of ten isolated Olea europaea trees in the field. Specifically, we investigated whether the phenotypic expression of foliar traits differed among crown sectors and layers and five periods of the day from sunrise to sunset. We investigated the consequences in terms of the exposed area of the leaves at the tree scale during a single day. Key Results: All traits differed among crown positions except the length-to-width ratio of the leaves. We found a strong complementarity in the patterns of the potential exposed area of the leaves among day periods as a result of a non-random distribution of leaf angles across the crown. Leaf exposure at the outer layer was below 60 % of the displayed surface, reaching maximum interception during morning periods. Daily interception increased towards the inner layer, achieving consecutive maximization from east to west positions within the crown, matching the sun’s trajectory. Conclusions: The expression of leaf traits within isolated trees of O. europaea varies continuously through the crown in a gradient of leaf morphotypes and leaf angles depending on the exposure and location of individual leaves. The distribution of light-related traits within the crown and the complementarity in the potential exposure patterns of the leaves during the day challenges the assumption of low trait variability within individuals.
Review of ten-years presence of Aedes albopictus in Spain 2004–2014: known distribution and public health concerns
(Parasites and vectors, 2015) Collantes, Francisco; Delacour, Sarah; Alarcón-Elbal, Pedro María; Ruiz-Arrondo, Ignacio; Delgado Sáez, Juan Antonio; Torrell-Sorio, Antonio; Bengoa, Mikel; Eritja, Roger; Miranda, Miguel Ángel; Molina, Ricardo; Lucientes, Javier
Ten years have gone by since the Asian tiger mosquito Aedes albopictus was recorded for the first time in Spain. In this paper, all relevant published information about this vector in Spain for the period 2004–2014 is reviewed. The known distribution for 2014 is provided, including all historical records (published and unpublished data) and the results from samplings of the last year.The consequences on public health about the presence of the Asian tiger mosquito in Spain are also highlighted. Further, legal aspects and control plans related to the management and diseases transmitted by this invasive vector species are also discussed.
How deep must we dig? Sampling depth effects on root biomass assessment in mediterranean riparian buffers
(Plant Biosystems, 2012) Delgado Sáez, Juan Antonio; González-Garrido, Laura; Martínez Martínez, Teodora
Root turnover is a relevant process controlling carbon and nutrient cycles. Furthermore, root biomass could influence the effectiveness of riparian buffer systems with regard to immobilizing and processing soil water pollutants and improving soil quality. However, sampling root biomass presents many technical problems, because there is as yet no well-established method for assessment thereof. In the present study, we evaluated the effects of limited sampling depth on biomass assessment in four riparian buffers and on two different dates (January and June): a poplar forest, two mixed deciduous afforestations of different ages, and a grassy area. Although, for all systems, most root biomass was limited to the first 30 cm, detection of differences in root biomass among vegetation types depended strongly on sampling depth for both sampling dates. Furthermore, although the poplar forest presented one of the most stable root systems in terms of total biomass between the sampling dates, it was one of the most seasonally dynamic in terms of the amount and distribution with depth of root biomass. The results of this study suggest that a minimum sampling depth should be established for each study according to seasonal variation in vertical distribution of root biomass.