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  1. Article: Analysis of the Orchidaceae Diversity in the Pululahua Reserve, Ecuador: Opportunities and Constraints as Regards the Biodiversity Conservation of the Cloud Mountain Forest.

    Mites, Mariana / García-Mozo, Herminia / Galán, Carmen / Oña, Edwin

    Plants (Basel, Switzerland)

    2022  Volume 11, Issue 5

    Abstract: The Pululahua Geobotanical Reserve is a protected natural area in the cloud mountain forest of Ecuador, so rich in orchid species despite being a volcanic area still under threat of volcanic activity. A comparative biodiversity study of orchids was ... ...

    Abstract The Pululahua Geobotanical Reserve is a protected natural area in the cloud mountain forest of Ecuador, so rich in orchid species despite being a volcanic area still under threat of volcanic activity. A comparative biodiversity study of orchids was carried out in two different sectors, Chaupisacha (CH) and La Reventazón (LR). Data were collected in 1 ha plots in each sector, in which all the orchids found were counted and two individuals of each species were retained. Immature individuals were conserved in a plant nursery until flowering. In CH, there were 922 individuals grouped into 24 genera and 55 species, while LR had 9196 individuals grouped into 26 genera and 46 species; only 14 species were found in both sectors. Different density and diversity indexes were calculated. The density (ind./100 m
    Language English
    Publishing date 2022-03-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants11050698
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Analysis of the Orchidaceae Diversity in the Pululahua Reserve, Ecuador: Opportunities and Constraints as Regards the Biodiversity Conservation of the Cloud Mountain Forest

    Mites, Mariana / García-Mozo, Herminia / Galán, Carmen / Oña, Edwin

    Plants. 2022 Mar. 04, v. 11, no. 5

    2022  

    Abstract: The Pululahua Geobotanical Reserve is a protected natural area in the cloud mountain forest of Ecuador, so rich in orchid species despite being a volcanic area still under threat of volcanic activity. A comparative biodiversity study of orchids was ... ...

    Abstract The Pululahua Geobotanical Reserve is a protected natural area in the cloud mountain forest of Ecuador, so rich in orchid species despite being a volcanic area still under threat of volcanic activity. A comparative biodiversity study of orchids was carried out in two different sectors, Chaupisacha (CH) and La Reventazón (LR). Data were collected in 1 ha plots in each sector, in which all the orchids found were counted and two individuals of each species were retained. Immature individuals were conserved in a plant nursery until flowering. In CH, there were 922 individuals grouped into 24 genera and 55 species, while LR had 9196 individuals grouped into 26 genera and 46 species; only 14 species were found in both sectors. Different density and diversity indexes were calculated. The density (ind./100 m²) of CH was 0.96, while that of LR was 185.92. Simpson’s diversity (1 − λ) attained CH 0.903 ± 0.01 and LR 0.85 ± 0.01. The orchid diversity measured by the Shannon-Wiener diversity index (H′) was 1.29 for CH, differing significantly from that of LR (H′ 1.02). The medium equity (Jaccard’s J′) found was 0.61 in CH and 90.78 in LR. Limitations as regards the natural dispersion of orchids seemed to favor endemism. Some species, such as Dracula felix and Restrepia guttulate, are threatened with disappearance from the wild or are vulnerable, as is the case for Epidendrum polyanthogastrium. A lack of information on the phenology and anthropic impacts in the area limit the conservation of species, signifying that new protected figures and seed banks are necessary, especially in CH, owing to its high diversity of orchids.
    Keywords Epidendrum ; biodiversity ; biodiversity conservation ; conservation areas ; indigenous species ; phenology ; phytogeography ; plant nurseries ; tropical montane cloud forests ; volcanic activity ; volcanic land ; Ecuador
    Language English
    Dates of publication 2022-0304
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants11050698
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Atmospheric Pathways and Distance Range Analysis of Castanea Pollen Transport in Southern Spain

    López-Orozco, Rocío / Hernández-Ceballos, Miguel Ángel / Galán, Carmen / García-Mozo, Herminia

    Forests. 2020 Oct. 14, v. 11, no. 10

    2020  

    Abstract: The sweet chestnut (Castanea sativa Mill.) is the only native species of this genus in Europe, where it faces various threats that are causing a severe decrease in populations, with the resulting loss of genetic diversity. In the Iberian Peninsula, it is ...

    Abstract The sweet chestnut (Castanea sativa Mill.) is the only native species of this genus in Europe, where it faces various threats that are causing a severe decrease in populations, with the resulting loss of genetic diversity. In the Iberian Peninsula, it is of high economic and ecological importance, being well represented, especially in northern areas, whilst it is limited to isolated populations in medium-range mountains in southern Spain (Andalusia region). Taking advantage of this fragmented distribution, this study analyzes the dynamics of atmospheric transport of Castanea pollen through Andalusia region in order to obtain a better understanding of the pollination pathways as a key aspect of the floral biology of this partially anemophilous species. The aerobiological characteristics of this species are also of special interest since its pollen has been recognized as allergenic. Pollen transport pathways were studied by applying back-trajectories analysis together with aerobiological, phenological, land cover, and meteorological data. The results reveal that airborne Castanea pollen concentrations recorded in the city of Cordoba, in the center of Andalusia region, reach medium- and even long-range distances. The backward-trajectory analysis indicates that most of the pollen data detected outside the Castanea flowering season were related to westerly slow and easterly airflows. Furthermore, some of the case studies analyzed indicate the presence of southerly airflow patterns, which could influence medium- and long-range transport events from chestnut populations further south, even from those located in north African mountains. The integrated analysis of the results offers us better knowledge of the cross-pollination pathways of this endangered species, which help us to understand its genetic flows, as a basis for designing conservation strategies for this highly fragmented species in southern Spain.
    Keywords Castanea sativa ; air flow ; allergenicity ; case studies ; cross pollination ; endangered species ; flowering ; genetic variation ; indigenous species ; land cover ; meteorological data ; mountains ; phenology ; pollen ; Iberian Peninsula ; Spain
    Language English
    Dates of publication 2020-1014
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2527081-3
    ISSN 1999-4907
    ISSN 1999-4907
    DOI 10.3390/f11101092
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Indoor biological particles in a train: comparative analysis with outdoor atmosphere

    García-Mozo, Herminia / López-Orozco, Rocío / Canalejo, Carolina / Oteros, Jose

    Aerobiologia. 2020 Sept., v. 36, no. 3

    2020  

    Abstract: Biological pollution directly affects our health and quality of life. In urban areas, people spend most time in indoor environments including means of transports where can be exposed to pollution sick building syndrome. Despite the importance of this ... ...

    Abstract Biological pollution directly affects our health and quality of life. In urban areas, people spend most time in indoor environments including means of transports where can be exposed to pollution sick building syndrome. Despite the importance of this issue, studies on the biological particles exposure in indoor transports are scarce and poorly documented. This study characterizes by using volumetric Hirst traps of the indoor pollen and fungal spore content of the indoor air of a daily crowed train connecting Córdoba city (South Spain) with the university campus. Results were compared with outdoor concentrations sampled at the same time. Twenty-three pollen types were identified indoor and 20 outdoor. Quercus, Olea, Platanus, Morus and Cupressus were the most abundant. Thirteen fungal spore types were identified by both indoor and outdoor samplings. Our results pointed out Cladosporium cladosporoides, Cladosporium herbarum, Coprinus, Alternaria and Torula as the most abundant ones. Outdoor levels of both particles were higher; nevertheless, occasionally indoor concentrations overcame indoor ones, overall pollen records at days after rainfall periods. Even pollen season of some taxa (i.e. Platanus, Urticaceae) extended inside lasting more days than outside. Results indicate as the closed transport can act as biological pollution reservoir which could have consequences on the incidence of passengers’ health.
    Keywords Alternaria ; Cladosporium herbarum ; Coprinus ; Cupressus ; Olea ; Platanus ; Quercus ; Torula ; Urticaceae ; air ; fungal spores ; people ; pollen ; pollen season ; pollution ; quality of life ; rain ; Spain
    Language English
    Dates of publication 2020-09
    Size p. 481-492.
    Publishing place Springer Netherlands
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 1499126-3
    ISSN 1573-3025 ; 0393-5965
    ISSN (online) 1573-3025
    ISSN 0393-5965
    DOI 10.1007/s10453-020-09646-8
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: The use of aerobiological data on agronomical studies.

    Garcia-Mozo, Herminia

    Annals of agricultural and environmental medicine : AAEM

    2011  Volume 18, Issue 1, Page(s) 1–6

    Abstract: Pollination is only one of the many events comprising the plant development cycle; however, it is extremely important for yield where seed is required. Although successful fertilization depends on a number of environmental and endogenous factors, ... ...

    Abstract Pollination is only one of the many events comprising the plant development cycle; however, it is extremely important for yield where seed is required. Although successful fertilization depends on a number of environmental and endogenous factors, including climate and plant nutritional status, a sufficient quantity of pollen must reach the receptive stigma in order to enhance fertilization potential. Aerobiological research focuses on the airborne dispersal of biological particles, including pollen grains from anemophilous plants. Airborne pollen data are currently used for various purposes in agricultural research. One major use is as a source of advance information concerning variations in the final fruit harvest of wind-pollinated species. This application, first introduced in the field of plant pathology in the 1940s, was further developed in the 1970s in French studies of vineyard yield; more recently, it has been successfully tested both in crops and in non-crop forest species such as oak or birch. Nowadays, aerobiological research into the influence of pollen emission on final fruit production takes into account a number of other variables, including weather-related factors and phytopathological data; it also uses new, computerized statistical tools to obtain more precise information on agricultural yield and phytopathological risks.
    MeSH term(s) Agriculture ; Crops, Agricultural/physiology ; Particulate Matter/chemistry ; Pollen ; Pollination/physiology ; Weather
    Chemical Substances Particulate Matter
    Language English
    Publishing date 2011
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 1215115-4
    ISSN 1898-2263 ; 1232-1966
    ISSN (online) 1898-2263
    ISSN 1232-1966
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Impact of land cover changes and climate on the main airborne pollen types in Southern Spain.

    García-Mozo, Herminia / Oteros, Jose Antonio / Galán, Carmen

    The Science of the total environment

    2016  Volume 548-549, Page(s) 221–228

    Abstract: Airborne pollen concentrations strongly correlate with flowering intensity of wind-pollinated species growing at and around monitoring sites. The pollen spectrum, and the variations in its composition and concentrations, is influenced by climatic ... ...

    Abstract Airborne pollen concentrations strongly correlate with flowering intensity of wind-pollinated species growing at and around monitoring sites. The pollen spectrum, and the variations in its composition and concentrations, is influenced by climatic features and by available nutritional resources but it is also determined by land use and its changes. The first factor influence is well known on aerobiological researches but the impact of land cover changes has been scarcely studied until now. This paper reports on a study carried out in Southern Spain (Córdoba city) examining airborne pollen trends over a 15-year period and it explores the possible links both to changes in land use and to climate variations. The Seasonal-Trend Decomposition procedure based on Loess (STL) which decomposes long-term data series into smaller seasonal component patterns was applied. Trends were compared with recorded changes in land use at varying distances from the city in order to determine their possible influence on pollen-count variations. The influence of climate-related factors was determined by means of non-parametric correlation analysis. The STL method proved highly effective for extracting trend components from pollen time series, because their features vary widely and can change quickly in a short term. Results revealed mixed trends depending on the taxa and reflecting fluctuations in land cover and/or climate. A significant rising trend in Olea pollen counts was observed, attributable both to the increasing olive-growing area but also to changes in temperature and rainfall. Poaceae pollen concentrations also increased, due largely to an expansion of heterogeneous agricultural areas and to an increase in pollen season length positively influenced by rainfall and temperature. By contrast, the significant declining trend observed for pollen from ruderal taxa, such as Amaranthaceae, Rumex, Plantago and Urticaceae, may be linked to changes in urban planning strategies with a higher building pressure.
    MeSH term(s) Air Pollutants/analysis ; Air Pollution/statistics & numerical data ; Allergens/analysis ; Cities ; Environmental Monitoring ; Olea ; Pollen ; Seasons ; Spain
    Chemical Substances Air Pollutants ; Allergens
    Language English
    Publishing date 2016-04-01
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2016.01.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Phenological changes in olive (Ola europaea L.) reproductive cycle in southern Spain due to climate change.

    Garcia-Mozo, Herminia / Oteros, Jose / Galan, Carmen

    Annals of agricultural and environmental medicine : AAEM

    2015  Volume 22, Issue 3, Page(s) 421–428

    Abstract: Introduction: Modifications of crop species phenology due to a changing environment are of interest because of their impact on fruit set and final harvest. Pre-flowering and flowering phenophases in olive groves at different sites of southern Spain were ...

    Abstract Introduction: Modifications of crop species phenology due to a changing environment are of interest because of their impact on fruit set and final harvest. Pre-flowering and flowering phenophases in olive groves at different sites of southern Spain were examined, in order to chart potential trends and determine major correlations with weather-related parameters, especially temperature and water availability. The high prevalence of olive pollen allergy in the Mediterranean population makes this study highly relevant.
    Materials and methods: Ten sites in Cordoba province (Spain) during a 17-year period (1996-2012). BBCH phenology scale. Meteorological data from 1960 were analyzed; data from 1996 included on modeling analysis. Linear Mixed Models (LMMs) were developed, combining phenological and meteorological data.
    Results: Since 1960, local spring temperatures have increased 1.5ºC, the number of spring rainfall days has fallen 11 days, total rainfall has declined 150 mm. Despite phenological differences between sites, attributable to altitude, phenological development during the season followed a similar pattern. Flowering dates advanced 2 days, while inflorescence emergence was delayed 24 days. Trend slopes revealed differences, an earlier period (1996-2002) with a sharp flowering advance of 15 days, and a later period (2003-2012) characterized by a gradual advance and a high bud emergence delay of 22 days.
    Conclusions: LMMs was revealed as an appropriate technique for phenology behaviour analysis displaying both fixed and random interactions. Cultivars grown in the study province are adapted to climate with a synchronized response, although climate change is affecting theolive reproductive cycle in southern Spain; therefore, the timing of pollen release, with subsequent consequences on allergic population as phenological changes, could have impacts on flowering period and pollen production. Further investigation is required of the implications for crop production in Mediterranean ecosystems.
    MeSH term(s) Allergens/physiology ; Climate Change ; Olea/growth & development ; Olea/physiology ; Pollen/physiology ; Reproduction ; Seasons ; Spain
    Chemical Substances Allergens
    Language English
    Publishing date 2015
    Publishing country Poland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1215115-4
    ISSN 1898-2263 ; 1232-1966
    ISSN (online) 1898-2263
    ISSN 1232-1966
    DOI 10.5604/12321966.1167706
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A model to account for variations in holm-oak (Quercus ilex subsp. ballota) acorn production in southern Spain.

    García-Mozo, Herminia / Dominguez-Vilches, Eugenio / Galán, Carmen

    Annals of agricultural and environmental medicine : AAEM

    2012  Volume 19, Issue 3, Page(s) 403–408

    Abstract: One of the characteristics of holm-oak acorn production is its high variability among individuals and years. To examine the main causes of this fact, a study was conducted from 1998-2010 in a natural area of holm-oak in southern Spain, where floral ... ...

    Abstract One of the characteristics of holm-oak acorn production is its high variability among individuals and years. To examine the main causes of this fact, a study was conducted from 1998-2010 in a natural area of holm-oak in southern Spain, where floral phenology, fruit production, fruit size, airborne pollen emission and meteorology factors were analyzed with the ultimate aim of developing a model for forecasting holm-oak yield. Pollen emission during flowering season was the main factor determining the final acorn harvest, but also some meteorological variables played an important role in explaining acorn crop variations, especially humidity and temperature during the months of April and September. The reliability of the proposed model was externally validated using data not included in its construction; validation yielded acceptable results, with a minimum error of estimation. Our results appear to be very useful for planning cropping and pig feeding strategies. Further research could extend the use of airborne pollen counts in forest studies relating to anemophilous species, in order to optimize agricultural policies.
    MeSH term(s) Environmental Monitoring/methods ; Models, Biological ; Pollen ; Quercus/growth & development ; Quercus/physiology ; Reproduction ; Seasons ; Seeds/growth & development ; Spain ; Weather
    Language English
    Publishing date 2012
    Publishing country Poland
    Document type Evaluation Studies ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1215115-4
    ISSN 1898-2263 ; 1232-1966
    ISSN (online) 1898-2263
    ISSN 1232-1966
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Variations in cereal crop phenology in Spain over the last twenty-six years (1986–2012)

    Oteros, Jose / García-Mozo, Herminia / Botey, Roser / Mestre, Antonio / Galán, Carmen

    Climatic change. 2015 June, v. 130, no. 4

    2015  

    Abstract: Over recent years, the Iberian Peninsula has witnessed an increase both in temperature and in rainfall intensity, especially in the Mediterranean climate area. Plant phenology is modulated by climate, and closely governed by water availability and air ... ...

    Abstract Over recent years, the Iberian Peninsula has witnessed an increase both in temperature and in rainfall intensity, especially in the Mediterranean climate area. Plant phenology is modulated by climate, and closely governed by water availability and air temperature. Over the period 1986–2012, the effects of climate change on phenology were analyzed in five crops at 26 sites growing in Spain (southern Europe): oats, wheat, rye, barley and maize. The phenophases studied were: sowing date, emergence, flag leaf sheath swollen, flowering, seed ripening and harvest. Trends in phenological response over time were detected using linear regression. Trends in air temperature and rainfall over the period prior to each phenophase were also charted. Correlations between phenological features, biogeographical area and weather trends were examined using a Generalized Lineal Mixed Model approach. A generalized advance in most winter-cereal phenophases was observed, mainly during the spring. Trend patterns differed between species and phenophases. The most noticeable advance in spring phenology was recorded for wheat and oats, the “Flag leaf sheath swollen” and “Flowering date” phenophases being brought forward by around 3 days/year and 1 day/year, respectively. Temperature changes during the period prior to phenophase onset were identified as the cause of these phenological trends. Climate changes are clearly prompting variations in cereal crop phenology; their consequences could be even more marked if climate change persists into the next century. Changes in phenology could in turn impact crop yield; fortunately, human intervention in crop systems is likely to minimize the negative impact.
    Keywords Avena sativa ; Hordeum vulgare ; Mediterranean climate ; Secale cereale ; Triticum aestivum ; Zea mays ; air temperature ; barley ; biogeography ; climate change ; corn ; crop yield ; crops ; flowering ; leaves ; linear models ; oats ; phenology ; rain ; rain intensity ; ripening ; rye ; sowing date ; spring ; statistical models ; wheat ; Iberian Peninsula ; Spain
    Language English
    Dates of publication 2015-06
    Size p. 545-558.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 751086-x
    ISSN 0165-0009
    ISSN 0165-0009
    DOI 10.1007/s10584-015-1363-9
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Environmental drivers of the seasonal exposure to airborne Alternaria spores in Spain

    Picornell, Antonio / Rojo, Jesús / Trigo, M. Mar / Ruiz-Mata, Rocío / Lara, Beatriz / Romero-Morte, Jorge / Serrano-García, Alicia / Pérez-Badia, Rosa / Gutiérrez-Bustillo, Montserrat / Cervigón-Morales, Patricia / Ferencova, Zuzana / Morales-González, Julia / Sánchez-Reyes, Estefanía / Fuentes-Antón, Sergio / Sánchez-Sánchez, José / Dávila, Ignacio / Oteros, Jose / Martínez-Bracero, Moisés / Galán, Carmen /
    García-Mozo, Herminia / Alcázar, Purificación / Fernández, Santiago / González-Alonso, Mónica / Robles, Estrella / de Zabalza, Anabel Pérez / Ariño, Arturo H. / Recio, Marta

    Science of the total environment. 2022 June 01, v. 823

    2022  

    Abstract: Alternaria conidia have high allergenic potential and they can trigger important respiratory diseases. Due to that and to their extensive detection period, airborne Alternaria spores are considered as a relevant airborne allergenic particle. Several ... ...

    Abstract Alternaria conidia have high allergenic potential and they can trigger important respiratory diseases. Due to that and to their extensive detection period, airborne Alternaria spores are considered as a relevant airborne allergenic particle. Several studies have been developed in order to predict the human exposure to this aeroallergen and to prevent their negative effects on sensitive population. These studies revealed that some sampling locations usually have just one single Alternaria spore season while other locations generally have two seasons within the same year. However, the reasons of these two different seasonal patterns remain unclear. To understand them better, the present study was carried out in order to determine if there are any weather conditions that influence these different behaviours at different sampling locations. With this purpose, the airborne Alternaria spore concentrations of 18 sampling locations in a wide range of latitudinal, altitudinal and climate ranges of Spain were studied. The aerobiological samples were obtained by means of Hirst-Type volumetric pollen traps, and the seasonality of the airborne Alternaria spores were analysed. The optimal weather conditions for spore production were studied, and the main weather factor affecting Alternaria spore seasonality were analysed by means of random forests and regression trees. The results showed that the temperature was the most relevant variable for the Alternaria spore dispersion and it influenced both the spore integrals and their seasonality. The water availability was also a very significant variable. Warmer sampling locations generally have a longer period of Alternaria spore detection. However, the spore production declines during the summer when the temperatures are extremely warm, what splits the favourable period for Alternaria spore production and dispersion into two separate ones, detected as two Alternaria spore seasons within the same year.
    Keywords Alternaria ; allergenicity ; altitude ; climate ; conidia ; humans ; pollen ; summer ; temperature ; weather ; Spain
    Language English
    Dates of publication 2022-0601
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2022.153596
    Database NAL-Catalogue (AGRICOLA)

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