Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
Bronchial asthma is the most common chronic disease in children, producing the highest absenteeis... more Bronchial asthma is the most common chronic disease in children, producing the highest absenteeism among children and adults. To determine the relation between respiratory function in asthmatic children and contaminant and climatic environmental factors. It was performed a study with 26 asthmatic patients, from the Immuno-Allergies Department of the Specialties Hospital no. 71 of the Centro Medico Nacional Torreon, with an 8-month-follow-up. By a home monitoring, subjects determined their peak expiratory flow (PEF) twice a day: PEF1: in the morning, at getting up without or before medication, and PEF2: at night, before sleeping without or before medication. From June to August 1995, as well as from September to November 1995, a relation between pulmonary function, measured by PEF1 and PEF2, and some of the palinologic families or species studied was not found. On the other hand, from December 1995 to February 1996 a significant relation between the concentration of pollen's part...
Datasets of plant occurrences used for the spatial analyses described in the paper. For details, ... more Datasets of plant occurrences used for the spatial analyses described in the paper. For details, please consult the publication "Native trees of Mexico: diversity, distribution, uses and conservation".
ABSTRACT In this paper, we present a bioclimatic approach to (1) differentiate populations of the... more ABSTRACT In this paper, we present a bioclimatic approach to (1) differentiate populations of the endemic Mexican columnar cactus Neobuxbaumia tetetzo within the Tehuacán-Cuicatlán Valley and (2) evaluate, under two possible future scenarios (years 2050 and 2080), the effects of climate change on the total species distribution in this area, as well as on groups of populations defined by their bioclimatic models. Four population groups were identified, and principal component analysis showed that the variables that explained more than 40% of the climatic variation were precipitation of the wettest quarter and temperature seasonality. Bioclimatic models under the different scenarios indicated that when the overall species distribution was analyzed, this area will probably have contracted by 19.5% by the year 2050 and 47.05% by the year 2080, whereas the separate analysis of population groups projected area contractions of 18.4% by the year 2050 and 51.95% by the year 2080. These results demonstrate the importance of exploring new approaches for evaluating and predicting current and future distribution of plant species.
Background Mexico is one of the most floristically rich countries in the world. Despite significa... more Background Mexico is one of the most floristically rich countries in the world. Despite significant contributions made on the understanding of its unique flora, the knowledge on its diversity, geographic distribution and human uses, is still largely fragmented. Unfortunately, deforestation is heavily impacting this country and native tree species are under threat. The loss of trees has a direct impact on vital ecosystem services, affecting the natural capital of Mexico and people’s livelihoods. Given the importance of trees in Mexico for many aspects of human well-being, it is critical to have a more complete understanding of their diversity, distribution, traditional uses and conservation status. We aimed to produce the most comprehensive database and catalogue on native trees of Mexico by filling those gaps, to support their in situ and ex situ conservation, promote their sustainable use, and inform reforestation and livelihoods programmes. Methods A database with all the tree spe...
Se presentan los primeros registros de margay (Leopardus wiedii), gato montés (Lynx rufus), puma ... more Se presentan los primeros registros de margay (Leopardus wiedii), gato montés (Lynx rufus), puma (Puma concolor) y jaguarundi (Puma yagouaroundi) en el sur del estado de Puebla. El trabajo de campo fue parte de una monitorización participativa que incluyó a las autoridades civiles del ejido. Se colocaron 11 estaciones de cámaras-trampa digitales que funcionaron del 18 de diciembre de 2012 al 18 de febrero de 2014. Con un esfuerzo de muestreo de 2,669 días-trampa y dentro del conjunto de registros obtenidos, se pudieron registrar por primera vez para la región 4 especies de felinos mediante 3 registros de L. wiedii, 26 de L. rufus, 7 de P. concolor y 4 de P. yagouaroundi. Fue posible con estos registros documentar la presencia de una hembra adulta de P. concolor con sus 2 crías. Los rangos de distribución conocidos de L. wiedii y P. yagouaroundi aumentaron en el centro de México. Las especies identificadas coexisten en la selva baja caducifolia del territorio ejidal de San José Axuxco, Puebla, dentro de los límites de la Reserva de la Biosfera Tehuacán-Cuicatlán. La localidad debe de considerarse prioritaria para la conservación de las poblaciones de las especies de felinos amenazados en la región.
The effects of climate change on biodiversity are imminent, and these turn out to be particularly... more The effects of climate change on biodiversity are imminent, and these turn out to be particularly alarming for the tropi- cal montane cloud forest. The disappearance of fragments of this forest is expected, along with some of their most characteristic species, such as Magnolia schiedeana. Mexico, through the National System of Protected Natural Areas, must consider protection strategies for those species distributed within the Protected Natural Areas that will be affected by the climate change. This study delimits the distribution of M. schiedeana in Mexico, through ecological niche and future distribution modeling under two pe- riods: years 2040 and 2080. These distribution models tend to move towards northeastern Mexico. The potential distribution of this species declines by 0.36% and 1.94% in the first and second periods, respectively. From this result, the future role of National System of Protected Natural Areas in the long-term conservation of M. schiedeana was analyzed, prompting a proposal to focus conservation efforts on the following Protected Natural Areas: (1) At the federal level: Biosphere Reserve Sierra Gorda and Cañón de Metztitlán, Cuenca del Río Necaxa and El Potosí, National Park El Chico, Cofre de Perote, Pico de Orizaba and Los Mármoles, and Nevado de Toluca. (2) At the state level: Cerro de las Culebras, Cerro de la Galaxia, Cerro de Macuiltepetl, El Tejar Garnica, Francisco Javier Clavijero, La Martinica, Molino de San Roque, Pacho Nuevo and Predio Barrgán.
Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
Bronchial asthma is the most common chronic disease in children, producing the highest absenteeis... more Bronchial asthma is the most common chronic disease in children, producing the highest absenteeism among children and adults. To determine the relation between respiratory function in asthmatic children and contaminant and climatic environmental factors. It was performed a study with 26 asthmatic patients, from the Immuno-Allergies Department of the Specialties Hospital no. 71 of the Centro Medico Nacional Torreon, with an 8-month-follow-up. By a home monitoring, subjects determined their peak expiratory flow (PEF) twice a day: PEF1: in the morning, at getting up without or before medication, and PEF2: at night, before sleeping without or before medication. From June to August 1995, as well as from September to November 1995, a relation between pulmonary function, measured by PEF1 and PEF2, and some of the palinologic families or species studied was not found. On the other hand, from December 1995 to February 1996 a significant relation between the concentration of pollen's part...
Datasets of plant occurrences used for the spatial analyses described in the paper. For details, ... more Datasets of plant occurrences used for the spatial analyses described in the paper. For details, please consult the publication "Native trees of Mexico: diversity, distribution, uses and conservation".
ABSTRACT In this paper, we present a bioclimatic approach to (1) differentiate populations of the... more ABSTRACT In this paper, we present a bioclimatic approach to (1) differentiate populations of the endemic Mexican columnar cactus Neobuxbaumia tetetzo within the Tehuacán-Cuicatlán Valley and (2) evaluate, under two possible future scenarios (years 2050 and 2080), the effects of climate change on the total species distribution in this area, as well as on groups of populations defined by their bioclimatic models. Four population groups were identified, and principal component analysis showed that the variables that explained more than 40% of the climatic variation were precipitation of the wettest quarter and temperature seasonality. Bioclimatic models under the different scenarios indicated that when the overall species distribution was analyzed, this area will probably have contracted by 19.5% by the year 2050 and 47.05% by the year 2080, whereas the separate analysis of population groups projected area contractions of 18.4% by the year 2050 and 51.95% by the year 2080. These results demonstrate the importance of exploring new approaches for evaluating and predicting current and future distribution of plant species.
Background Mexico is one of the most floristically rich countries in the world. Despite significa... more Background Mexico is one of the most floristically rich countries in the world. Despite significant contributions made on the understanding of its unique flora, the knowledge on its diversity, geographic distribution and human uses, is still largely fragmented. Unfortunately, deforestation is heavily impacting this country and native tree species are under threat. The loss of trees has a direct impact on vital ecosystem services, affecting the natural capital of Mexico and people’s livelihoods. Given the importance of trees in Mexico for many aspects of human well-being, it is critical to have a more complete understanding of their diversity, distribution, traditional uses and conservation status. We aimed to produce the most comprehensive database and catalogue on native trees of Mexico by filling those gaps, to support their in situ and ex situ conservation, promote their sustainable use, and inform reforestation and livelihoods programmes. Methods A database with all the tree spe...
Se presentan los primeros registros de margay (Leopardus wiedii), gato montés (Lynx rufus), puma ... more Se presentan los primeros registros de margay (Leopardus wiedii), gato montés (Lynx rufus), puma (Puma concolor) y jaguarundi (Puma yagouaroundi) en el sur del estado de Puebla. El trabajo de campo fue parte de una monitorización participativa que incluyó a las autoridades civiles del ejido. Se colocaron 11 estaciones de cámaras-trampa digitales que funcionaron del 18 de diciembre de 2012 al 18 de febrero de 2014. Con un esfuerzo de muestreo de 2,669 días-trampa y dentro del conjunto de registros obtenidos, se pudieron registrar por primera vez para la región 4 especies de felinos mediante 3 registros de L. wiedii, 26 de L. rufus, 7 de P. concolor y 4 de P. yagouaroundi. Fue posible con estos registros documentar la presencia de una hembra adulta de P. concolor con sus 2 crías. Los rangos de distribución conocidos de L. wiedii y P. yagouaroundi aumentaron en el centro de México. Las especies identificadas coexisten en la selva baja caducifolia del territorio ejidal de San José Axuxco, Puebla, dentro de los límites de la Reserva de la Biosfera Tehuacán-Cuicatlán. La localidad debe de considerarse prioritaria para la conservación de las poblaciones de las especies de felinos amenazados en la región.
The effects of climate change on biodiversity are imminent, and these turn out to be particularly... more The effects of climate change on biodiversity are imminent, and these turn out to be particularly alarming for the tropi- cal montane cloud forest. The disappearance of fragments of this forest is expected, along with some of their most characteristic species, such as Magnolia schiedeana. Mexico, through the National System of Protected Natural Areas, must consider protection strategies for those species distributed within the Protected Natural Areas that will be affected by the climate change. This study delimits the distribution of M. schiedeana in Mexico, through ecological niche and future distribution modeling under two pe- riods: years 2040 and 2080. These distribution models tend to move towards northeastern Mexico. The potential distribution of this species declines by 0.36% and 1.94% in the first and second periods, respectively. From this result, the future role of National System of Protected Natural Areas in the long-term conservation of M. schiedeana was analyzed, prompting a proposal to focus conservation efforts on the following Protected Natural Areas: (1) At the federal level: Biosphere Reserve Sierra Gorda and Cañón de Metztitlán, Cuenca del Río Necaxa and El Potosí, National Park El Chico, Cofre de Perote, Pico de Orizaba and Los Mármoles, and Nevado de Toluca. (2) At the state level: Cerro de las Culebras, Cerro de la Galaxia, Cerro de Macuiltepetl, El Tejar Garnica, Francisco Javier Clavijero, La Martinica, Molino de San Roque, Pacho Nuevo and Predio Barrgán.
Uploads