Papers by Daniel Jiménez García
Introducción 1.2.-Literatura citada Bennett A.F. 1999. Linkages in the Landscape: The role of cor... more Introducción 1.2.-Literatura citada Bennett A.F. 1999. Linkages in the Landscape: The role of corridors and connectivity in wildlife conservation. lUCN,
Cadernos de Agroecologia, Aug 16, 2018
Salud del suelo en tres agroecosistemas de maíz en el centro de Puebla, México.
Tropical and Subtropical Agroecosystems, Apr 13, 2021
Background: Microorganisms play a fundamental role in soil dynamics of agroecosystems. Objective:... more Background: Microorganisms play a fundamental role in soil dynamics of agroecosystems. Objective: To determine soil quality parameters and the abundance of functional groups of edaphic microorganisms in eight different contrasting sites evaluated in a milpa agroecosystem interclassed whit fruit trees (MIAF) and in monocultures system. Methodology: Bulk density, humidity, pH, electrical conductivity, percentage of ash, oxidizable organic matter, oxidizable carbon, total nitrogen, inorganic nitrogen and nutrients (NO3-, Na + , Ca 2+ and K +) were determined in composite soil samples by triplicate for each sites, as well as the diversity of weeds and abundance of total actinomycetes, nitrogen-fixing actinomycetes, yeasts, fungi, bacteria, and arbuscular mycorrhizal fungal spores. A principal component analysis was carried out to calculate a soil quality index (SQI). Analysis of variance, Tukey's mean comparison test (P ≤ 0.05), linear correlation, cluster analysis and canonical correlation were performed. Results: A greater amount of total actinomycetes (> 4 Log CFU g-1 soil) and nitrogen-fixing actinomycetes (> 3.8 Log CFU g-1 soil) and fungi (> 1.7 Log CFU g-1 soil) were observed in the MIAF system compared to the monocultures. For the sites with corn-bean association in the MIAF system, a high positive correlation was observed between organic matter content and nitrogen-fixing actinomycetes (r = 0.60) and yeasts (r = 0.73), as well as with the percentage of total nitrogen with yeasts (r = 0.70) and nitrogen-fixing actinomycetes (r = 0.75). Implications: The methodology used allowed the grouping of the sites studied, based on the SQI and a reduced set of variables. Conclusion: The MIAF system favored the abundance of functional groups, soil quality parameters and the availability of nutrients in the soil compared to the monoculture sites.
El trabajo ha sido desarrollado en un agrosistema tradicional del NE de la provincia de Alicante ... more El trabajo ha sido desarrollado en un agrosistema tradicional del NE de la provincia de Alicante (SE España). La superficie total del área de estudio es de aproximadamente 59.000 ha. La zona presenta grandes contrastes, con un área interior de morfología montañosa, con pequeñas cuencas dedicadas a la agricultura de secano, mientras que la zona litoral se caracteriza por un relieve menos abrupto, con núcleos de población y explotaciones agrícolas de regadío. El estudio se basa en la información extraída a partir de encuestas realizadas a los gestores cinegéticos, obteniendo datos acerca de las abundancias y la evolución de las poblaciones de jabalí entre los años 1980 y la actualidad. Se construye una base de datos SIG con un total de 15 cotos de caza. La base de datos incluye las siguientes variables: usos del suelo a nivel de coto, abundancias y evolución temporal de la especie. Los resultados muestran que dos de los cotos presentan densidades de jabalí elevadas (15-25 ind/ha), dos...
Tropical and Subtropical Agroecosystems
Background: Microorganisms play a fundamental role in soil dynamics of agroecosystems. Objective:... more Background: Microorganisms play a fundamental role in soil dynamics of agroecosystems. Objective: To determine soil quality parameters and the abundance of functional groups of edaphic microorganisms in eight different contrasting sites evaluated in a milpa agroecosystem interclassed whit fruit trees (MIAF) and in monocultures system. Methodology: Bulk density, humidity, pH, electrical conductivity, percentage of ash, oxidizable organic matter, oxidizable carbon, total nitrogen, inorganic nitrogen and nutrients (NO3-, Na+, Ca2+ and K+) were determined in composite soil samples by triplicate for each sites, as well as the diversity of weeds and abundance of total actinomycetes, nitrogen-fixing actinomycetes, yeasts, fungi, bacteria, and arbuscular mycorrhizal fungal spores. A principal component analysis was carried out to calculate a soil quality index (SQI). Analysis of variance, Tukey's mean comparison test (P ≤ 0.05), linear correlation, cluster analysis and canonical correla...
Brazilian Journal of Development
La acuacultura es la actividad agropecuaria con mayor crecimiento en México. Sin embargo; las mul... more La acuacultura es la actividad agropecuaria con mayor crecimiento en México. Sin embargo; las multinacionales, la privatización del agua, el cambio climático y el estrés hídrico amenazan este sector. Debe por tanto la trutricultura moderna, utilizar los ecosistemas acuáticos epicontinentales de manera eficiente y sustentable. El objetivo de este trabajo fue determinar el impacto generado por el cultivo de Oncorhynchus mykiss (uso de suelo, calidad del agua, biodiversidad) en los últimos 40 años en la microcuenca de Tlahuapan (20 UPAS) en Puebla. Se utilizaron metodologías mixtas para este propósito, se determinó el cambio de suelo por medio de imágenes Landsat (1973-2019) tratadas con QGIS®, para la estimación de la pérdida de biodiversidad se emplearon protocolos estándar y listados especializados. De igual forma, se analizaron los datos de volumen histórico y de calidad del agua. Los resultados obtenidos demuestran una pérdida gradual de la vegetación: Bosque (66%); Pastizal (30%)...
The Puebla state is rich in fungal biodiversity, however studies are needed to determine its magn... more The Puebla state is rich in fungal biodiversity, however studies are needed to determine its magnitude of. This research aimed to conduct a richness study of edible wild mushrooms of the hill El Pinal in the municipality of Acajete, Puebla. There were collected 86 specimens of macrofungi during the months of June to October in 2013, it identi ed 25 species belonging to 2 classes, 8 orders, 17 families and 19 genera. Of the 25 species found, 19 belong to Basidiomycetes and 6 belong to Ascomycetes. The proportion of families shows rst to Ramariaceae and Tricholomataceae, both with 16 %, followed by Amanitaceae and Cantharellaceae with 11 %; these four families contain 54 % of all species found to Basidiomycetes, while for Ascomycetes, best represented family was Helvellaceae with 50 % of all species. The Species richness was analyzed under ve estimators: ICE, Chao2, Jack1, Jack2 and Bootstrap, which indicate a greater inventory of 90 %. The species accumulation curve reached an asympt...
Grain Amaranth, Amaranthus hypochondriacus L., is an emerging arable crop cultivated worldwide. O... more Grain Amaranth, Amaranthus hypochondriacus L., is an emerging arable crop cultivated worldwide. One way to obtain resources from the crop, other than grain, is to grow Amaranths in the dry season and harvest only the leaves. In this environmental condition the response of an Amaranth agroecosystem to the presence of natural and semi-natural habitats or other crops has not been studied yet. We analysed the response of (1) Amaranth morphometry and (2) alpha and beta diversity of beetles to the nearness of adjacent vegetation and natural habitats (such as deciduous forest) at the small-holder conditions. Our results showed that A. hypochondriacus crop plants responded positively to the presence of an ecotone (adjacent vegetation) and the natural habitat (deciduous forest), i.e., A. hypochondriacus plants grew bigger in the section nearest to adjacent vegetation, which was a pattern consistent in time. Moreover, for beetles (considered as a bioindicator group), richness was different am...
Neotropical Biology and Conservation, 2021
We describe a case of mucormycosis in a Lesser Long-nosed Bat (Leptonycteris yerbabuenae) caused ... more We describe a case of mucormycosis in a Lesser Long-nosed Bat (Leptonycteris yerbabuenae) caused by Apophysomyces elegans in Puebla, Central Mexico. The diagnosis was supported by laboratory analysis and necropsy. We present the first report of the fungus in a wild host; therefore, we indicate that further studies are necessary to understand its infection cycle since this pathogen may indicate a risk of zoonotic, and anthropozoonotic diseases.
Tropical Conservation Science, 2015
This paper classifies the vegetation types that comprise the habitat of the white-tailed deer Odo... more This paper classifies the vegetation types that comprise the habitat of the white-tailed deer Odocoileus virginianus at a location within the Tehuacan-Cuicatlan Biosphere Reserve (TCBR) in Mexico. The vegetation was sampled, identified, and mapped at 308 points distributed along 28 transects (each of 500 m in length). To determine the effect of the classified and mapped vegetation types on the white-tailed deer, we estimated population density using the PELLET procedure based on the pellet-group count method. The principal vegetation types at the study site are tropical dry forest (TDF, 63% of the area) dominated by tetecho ( Neobuxbaumia tetezo), uña de gato ( Mimosa spp.) and mulato ( Bursera spp.), and crassicaule scrub dominated by mantecoso ( Parkinsonia praecox). The TDF can be sub-classified into four spatially different clusters (vegetation types) depending on the dominance of these species. The white-tailed deer population density varied significantly depending on vegetatio...
Galemys: Boletín …, 2009
El trabajo ha sido desarrollado en un agrosistema tradicional del NE de la provincia de Alicante ... more El trabajo ha sido desarrollado en un agrosistema tradicional del NE de la provincia de Alicante (SE España). La superficie total del área de estudio es de aproximadamente 59.000 ha. La zona presenta grandes contrastes, con un área interior de morfología montañosa, con pequeñas cuencas dedicadas a la agricultura de secano, mientras que la zona litoral se caracteriza por un relieve menos abrupto, con núcleos de población y explotaciones agrícolas de regadío. El estudio se basa en la información extraída a partir de encuestas realizadas a los gestores cinegéticos, obteniendo datos acerca de las abundancias y la evolución de las poblaciones de jabalí entre los años 1980 y la actualidad. Se construye una base de datos SIG con un total de 15 cotos de caza. La base de datos incluye las siguientes variables: usos del suelo a nivel de coto, abundancias y evolución temporal de la especie. Los resultados muestran que dos de los cotos presentan densidades de jabalí elevadas (15-25 ind/ha), dos cotos presentan densidades medias (10-15 ind/ha), cinco cotos muestran densidades bajas (5-10 ind/ha) y otros seis cotos densidades muy bajas (0-5 ind/ha). Los valores máximos se encuentran en cotos de interior y de montaña donde todavía se mantienen en activo cultivos de secano y se intercalan con cultivos abandonados y áreas naturales. También se observan densidades elevadas en el único coto de todos los analizados que se encuentra en la costa, donde la disponibilidad de hábitat es menor y, por lo tanto, hay una mayor concentración de individuos. Finalmente, el jabalí ha aumentado sus poblaciones desde la década de los años 1980 en la totalidad de los cotos estudiados.
Revista de Biología Tropical, 2017
The genus Vanilla comprises around 110 species distributed throughout Earth's tropical region... more The genus Vanilla comprises around 110 species distributed throughout Earth's tropical regions, with the largest number of reported species growing in the American continent. Vanilla farming is associated with many Mexican cultures such as the Totonac, Mayan, Chinantec, and Mazatec, among others. Currently, this crop is threatened by technical, social, ecological, and climatic conditioning factors, limiting its production and the preservation of wild and cultivated species. It is therefore necessary to ascertain the current diversity status of each of these species, as well as some of their main bioclimatic profile indicators, in order to help decision-making, aimed at preserving and genetically improve these species. During 2008, we gathered data from IPN, MEXU, and XAL herbaria, as well as from CONABIO’s World Information Network on Biodiversity (REMIB), the Global Biodiversity and Information Facility (GBIF), and we also used data from live access to BUAP’s vanilla germplasm ...
Avian Research, 2019
Background: Understanding geographic distributions of species is a crucial step in spatial planni... more Background: Understanding geographic distributions of species is a crucial step in spatial planning for biodiversity conservation, particularly as regards changes in response to global climate change. This information is especially important for species of global conservation concern that are susceptible to the effects of habitat loss and climate change. In this study, we used ecological niche modeling to assess the current and future geographic distributional potential of White-breasted Guineafowl (Agelastes meleagrides) (Vulnerable) across West Africa. Methods: We used primary occurrence data obtained from the Global Biodiversity Information Facility and national parks in Liberia and Sierra Leone, and two independent environmental datasets (Moderate Resolution Imaging Spectroradiometer normalized difference vegetation index at 250 m spatial resolution, and Worldclim climate data at 2.5′ spatial resolution for two representative concentration pathway emissions scenarios and 27 general circulation models for 2050) to build ecological niche models in Maxent. Results: From the projections, White-breasted Guineafowl showed a broader potential distribution across the region compared to the current IUCN range estimate for the species. Suitable areas were concentrated in the Gola rainforests in northwestern Liberia and southeastern Sierra Leone, the Tai-Sapo corridor in southeastern Liberia and southwestern Côte d'Ivoire, and the Nimba Mountains in northern Liberia, southeastern Guinea, and northwestern Côte d'Ivoire. Future climate-driven projections anticipated minimal range shifts in response to climate change. Conclusions: By combining remotely sensed data and climatic data, our results suggest that forest cover, rather than climate is the major driver of the species' current distribution. Thus, conservation efforts should prioritize forest protection and mitigation of other anthropogenic threats (e.g. hunting pressure) affecting the species.
Bulgarian Journal of Agricultural Science, 2017
GARCÍA-MARTÍNEZ, Y. G., C. BALLESTEROS, H. BERNAL, O. VILLARREAL, L. JIMÉNEZ-GARCÍA. and D. JIMÉN... more GARCÍA-MARTÍNEZ, Y. G., C. BALLESTEROS, H. BERNAL, O. VILLARREAL, L. JIMÉNEZ-GARCÍA. and D. JIMÉNEZ-GARCÍA, 2016. Traditional agroecosystems and global change implications in Mexico. Bulg. J. Agric. Sci., 22: 548–565 Global warming is producing negative effects on agriculture, changing the distribution and production of vulnerable crops. This phenomenon could also modify the production and distribution of plant species. Agroecosystems are highly diverse systems which could potentially reduce the impact of climate change. The following research work is founded due to this situation. The main objective of this study is to assess the impact of climate change on an unconventional agricultural system. Agroecosystems in the State of Puebla (Mexico) were analyzed under the horizons of the present, 2020, 2050 and 2080 under different socioeconomic scenarios (A1B, A2A, B1 and B2), to identify which areas could present changes in the distribution of at least 3 species in the State of Puebla. ...
Insects
Lycoriella species (Sciaridae) are responsible for significant economic losses in greenhouse prod... more Lycoriella species (Sciaridae) are responsible for significant economic losses in greenhouse production (e.g., mushrooms, strawberries, and nurseries). The current distributions of species in the genus are restricted to cold-climate countries. Three species of Lycoriella are of particular economic concern in view of their ability to invade areas in countries across the Northern Hemisphere. We used ecological niche models to determine the potential for range expansion under future climate change scenarios (RCP 4.5 and RCP 8.5) in the distribution of these three species of Lycoriella. Stable environmental suitability under climate change was a dominant theme in these species; however, potential range increases were noted in key countries (e.g., USA, Brazil, and China). Our results illustrate the potential for range expansion in these species in the Southern Hemisphere, including some of the highest greenhouse production areas in the world.
Veterinary Research
Climate change ranks among the most important issues globally, affecting geographic distributions... more Climate change ranks among the most important issues globally, affecting geographic distributions of vectors and pathogens, and inducing losses in livestock production among many other damaging effects. We characterized the potential geographic distribution of the ticks Rhipicephalus (Boophilus) microplus, an important vector of babesiosis and anaplasmosis globally. We evaluated potential geographic shifts in suitability patterns for this species in two periods (2050 and 2070) and under two emissions scenarios (RCPs 4.5 and 8.5). Our results anticipate increases in suitability worldwide, particularly in the highest production areas for cattle. The Indo-Malayan region resulted in the highest cattle exposure under both climate change projections (2050), with increases in suitability of > 30%. This study illustrates how ecological niche modeling can be used to explore probable effects of climate change on disease vectors, and the possible consequences on economic dimensions.
Biodiversity Informatics
El conjunto de ideas, métodos y programas informáticos que se conoce como “Modelado de Nicho Ecol... more El conjunto de ideas, métodos y programas informáticos que se conoce como “Modelado de Nicho Ecológico” (MNE)—y el relacionado “Modelado de Distribución de Especies” (MDS)—han sido objeto de intensa exploración e investigación en las últimas décadas. A pesar de existir al menos cuatro síntesis publicadas, este campo ha crecido tanto en complejidad, que la formación de nuevos investigadores es difícil. Hasta ahora, dicha formación se ha hecho de manera presencial en cursos organizados por universidades o centros de investigación, de los que hemos formado parte como instructores. Sin embargo, el acceso a este tipo de cursos especializados es restringido, por un lado, porque los cursos no se ofrecen en todas las universidades, y por otro, porque normalmente se imparten en inglés. Para facilitar el acceso a una mayor comunidad de científicos de habla hispana, presentamos un curso en español, completamente digital y de acceso gratuito, que se realizó vía Internet durante 23 semanas conse...
We point out complications inherent in biodiversity inventory metrics when applied to large-scale... more We point out complications inherent in biodiversity inventory metrics when applied to large-scale datasets. The number of samples in which a species is detected saturates, such that crucial numbers of detections of rare species approach zero. Any rare errors can then come to dominate species richness estimates, creating upward biases in estimates of species numbers. We document the problem via simulations of sampling from virtual biotas, illustrate its potential using a large empirical dataset (bird records from Cape May, New Jersey, USA), and outline the circumstances under which these problems may be expected to emerge.
Acta Agrícola y Pecuaria
Identificación de envases vacíos de plaguicidas en plantaciones de nopal verdura, Opuntia ficus-i... more Identificación de envases vacíos de plaguicidas en plantaciones de nopal verdura, Opuntia ficus-indica (L.) Mill. (Cactaceae), en Morelos, México Empty pesticide containers in prickly pear cactus, Opuntia ficus-indica (L.) Mill. (Cactaceae), from Morelos state, Mexico Recibido: 10 de enero de 2018 Aceptado: 28 de abril de 2018 resumen Los envases de plaguicidas vacíos desechados inadecuadamente representan un peligro de contaminación química en la producción de alimentos. Con la finalidad de determinar si los envases de plaguicidas son manejados de manera inapropiada en la región productora de nopal verdura, Opuntia ficus-indica (L.) Mill. (Cactaceae), en Morelos, México, se realizaron recorridos en los municipios de Tepoztlán, Tlalnepantla, Tlayacapan y Totolapan, para colectar, identificar, contabilizar y clasificar envases. Se encontró la presencia de 729 envases en 227 puntos de muestreo con incidencia mayor en Tlalnepantla. Los envases se clasificaron como insecticidas, insecticidas/acaricidas, herbicidas, fungicidas y bactericidas. Se identificaron plaguicidas altamente peligrosos, extremadamente peligrosos (organofosforados) y con prohibición de uso a nivel mundial (metamidofós, monocrotofós). Ninguno de los insumos fitosanitarios encontrados contó con autorización oficial para uso en el cultivo. En la producción de nopal verdura de Morelos, no se realiza el desecho adecuado de envases de plaguicidas, lo que representa peligro de contaminación química al trabajador agrícola, al consumidor final y al medio ambiente. palabras clave inocuidad, reducción de riesgos, organofosforados, organoclorados, glifosato abstract Inadequately discarded empty pesticide containers represents a chemical contamination risk in vegetable food production. In order to determine if empty pesticide containers are incorrectly manipulated in the prickly pear cactus [Opuntia ficus-indica (L.) Mill., Cactaceae) production region from Morelos, Mexico, surveys were conducted in the municipalities of Tepoztlan, Tlalnepantla, Tlayacapan, and Totolapan. 729 empty pesticide containers in 227 sampling points were detected, major incidence occurred in Tlalnepantla; and were classified as insecticides, insecticies/acaricides, herbicides, fungicides, and bactericides. Highly and extremely dangerous (organophosphorates), and banned worldwide (metamidophos, monocrotophos) were observed. All phytosanitary supplies determined in this study are not officially accepted for its use in prickly pear cactus crop. In local prickly pear cactus commercial area, pesticides containers are not officially improperly discarded, increasing chemical contamination risk for agricultural workers, final consumers, and environment.
Diversity and Distributions
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Papers by Daniel Jiménez García