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  • 11
    Online Resource
    Online Resource
    UNED - Universidad Nacional de Educacion a Distancia ; 2001
    In:  Espacio Tiempo y Forma. Serie VII, Historia del Arte Vol. 0, No. 14 ( 2001-01-01)
    In: Espacio Tiempo y Forma. Serie VII, Historia del Arte, UNED - Universidad Nacional de Educacion a Distancia, Vol. 0, No. 14 ( 2001-01-01)
    Type of Medium: Online Resource
    ISSN: 1130-4715
    URL: Issue
    Language: Unknown
    Publisher: UNED - Universidad Nacional de Educacion a Distancia
    Publication Date: 2001
    detail.hit.zdb_id: 2525871-0
    SSG: 7,36
    SSG: 9,10
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  • 12
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2020
    In:  Scientific Reports Vol. 10, No. 1 ( 2020-03-11)
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 10, No. 1 ( 2020-03-11)
    Abstract: Speaking involves coordination of multiple neuromotor systems, including respiration, phonation and articulation. Developing non-invasive imaging methods to study how the brain controls these systems is critical for understanding the neurobiology of speech production. Recent models and animal research suggest that regions beyond the primary motor cortex (M1) help orchestrate the neuromotor control needed for speaking, including cortical and sub-cortical regions. Using contrasts between speech conditions with controlled respiratory behavior, this fMRI study investigates articulatory gestures involving the tongue, lips and velum (i.e., alveolars versus bilabials, and nasals versus orals), and phonatory gestures (i.e., voiced versus whispered speech). Multivariate pattern analysis (MVPA) was used to decode articulatory gestures in M1, cerebellum and basal ganglia. Furthermore, apart from confirming the role of a mid-M1 region for phonation, we found that a dorsal M1 region, linked to respiratory control, showed significant differences for voiced compared to whispered speech despite matched lung volume observations. This region was also functionally connected to tongue and lip M1 seed regions, underlying its importance in the coordination of speech. Our study confirms and extends current knowledge regarding the neural mechanisms underlying neuromotor speech control, which hold promise to study neural dysfunctions involved in motor-speech disorders non-invasively.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2615211-3
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  • 13
    Online Resource
    Online Resource
    CSIRO Publishing ; 2012
    In:  International Journal of Wildland Fire Vol. 21, No. 1 ( 2012), p. 48-
    In: International Journal of Wildland Fire, CSIRO Publishing, Vol. 21, No. 1 ( 2012), p. 48-
    Abstract: Fire frequency in 21 forest planning regions of Portugal during the period 1975–2005 was estimated from historical burnt area maps generated with semi-automatic classification of Landsat Thematic Mapper (TM) satellite imagery. Fire return interval distributions were modelled with the Weibull function and the estimated parameters were used to calculate regional mean, median and modal fire return intervals, as well as regional hazard functions. Arrangement of the available data into three different time series allowed for assessment of the effects of minimum mapping unit, time series length and use of censored data on the Weibull function parameter estimates. Varying the minimum mapping unit between 5 and 35 ha had a negligible effect on parameter estimates, whereas changing the time series length from 22 to 31 years substantially affected the estimates. However, the strongest effect was caused by censored data. Its exclusion led to substantial overestimation of fire frequency and of burning probability dependence on fuel age. We estimated a country-wide mean fire interval of 36 years and an annual burnt area of 1.2%. Regional variations in fire frequency descriptors were interpreted in terms of land cover and land use practices that affect the contemporary fire regime in Portugal.
    Type of Medium: Online Resource
    ISSN: 1049-8001
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2012
    SSG: 12
    SSG: 23
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  • 14
    Online Resource
    Online Resource
    FapUNIFESP (SciELO) ; 2018
    In:  Acta Amazonica Vol. 48, No. 3 ( 2018-09), p. 179-190
    In: Acta Amazonica, FapUNIFESP (SciELO), Vol. 48, No. 3 ( 2018-09), p. 179-190
    Abstract: RESUMO Este trabalho apresenta uma nova abordagem para a estimativa de altura de árvores em florestas secundárias em duas áreas de estudo na Amazônia brasileira: Manaus (Amazônia central) e Santarém (Amazônia oriental). A abordagem consistiu em ajustar modelos hipsométricos separados por área de estudo e grupos ecológicos de espécies: pioneiras, secundárias iniciais e secundárias tardias. No total, 1178 árvores foram medidas em diâmetro e altura em duas etapas de campo: agosto de 2014 em Manaus e Setembro de 2015 em Santarém. Foram testados cinco modelos log-lineares e não lineares mais utilizados na literatura. O modelo hiperbólico: H = a.D/(b+D) foi o que apresentou o melhor ajuste quando avaliado com os dados de validação. Diferenças significativas nos parâmetros de ajuste foram observadas entre as espécies pioneiras e secundárias de Manaus e Santarém pelo teste F, significando que equações específicas por grupos ecológicos e área de estudo deveriam ser utilizadas para estimar a altura (H) a partir do diâmetro (D) com maior acurácia. Esta nova abordagem fornece equações específicas para localidade e grupo ecológico, para estimar a altura das árvores em florestas secundárias. O conjunto de equações desenvolvidas permitirá melhorar as estimativas de biomassa e a quantificação dos estoques de carbono nas florestas secundárias da Amazônia brasileira.
    Type of Medium: Online Resource
    ISSN: 1809-4392 , 0044-5967
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2018
    detail.hit.zdb_id: 2088290-7
    SSG: 12
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  • 15
    In: Ecology and Evolution, Wiley, Vol. 7, No. 11 ( 2017-06), p. 4059-4071
    Abstract: Seasonality causes fluctuations in resource availability, affecting the presence and abundance of animal species. The impacts of these oscillations on wildlife populations can be exacerbated by habitat fragmentation. We assessed differences in bat species abundance between the wet and dry season in a fragmented landscape in the Central Amazon characterized by primary forest fragments embedded in a secondary forest matrix. We also evaluated whether the relative importance of local vegetation structure versus landscape characteristics (composition and configuration) in shaping bat abundance patterns varied between seasons. Our working hypotheses were that abundance responses are species as well as season specific, and that in the wet season, local vegetation structure is a stronger determinant of bat abundance than landscape‐scale attributes. Generalized linear mixed‐effects models in combination with hierarchical partitioning revealed that relationships between species abundances and local vegetation structure and landscape characteristics were both season specific and scale dependent. Overall, landscape characteristics were more important than local vegetation characteristics, suggesting that landscape structure is likely to play an even more important role in landscapes with higher fragment‐matrix contrast. Responses varied between frugivores and animalivores. In the dry season, frugivores responded more to compositional metrics, whereas during the wet season, local and configurational metrics were more important. Animalivores showed similar patterns in both seasons, responding to the same group of metrics in both seasons. Differences in responses likely reflect seasonal differences in the phenology of flowering and fruiting between primary and secondary forests, which affected the foraging behavior and habitat use of bats. Management actions should encompass multiscale approaches to account for the idiosyncratic responses of species to seasonal variation in resource abundance and consequently to local and landscape scale attributes.
    Type of Medium: Online Resource
    ISSN: 2045-7758 , 2045-7758
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2635675-2
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  • 16
    Online Resource
    Online Resource
    MDPI AG ; 2021
    In:  Applied Sciences Vol. 11, No. 4 ( 2021-02-23), p. 1969-
    In: Applied Sciences, MDPI AG, Vol. 11, No. 4 ( 2021-02-23), p. 1969-
    Abstract: Salt marshes are valuable ecosystems, as they provide food, shelter, and important nursery areas for fish and macroinvertebrates, and a wide variety of ecosystem services for human populations. These ecosystem services heavily rely on the floristic composition of the salt marshes with different species conferring different service values and different adaptation and resilience capacities towards ecosystem stressors. Blue carbon, nitrogen, and phosphorous stocks are no exception to this, and rely on the interspecific differences in the primary production metabolism and physiological traits. Furthermore, these intrinsic physiological characteristics also modulate the species response to any environmental stressor, such as the ones derived from ongoing global changes. This will heavily shape transitional ecosystem services, with significant changes of the ecosystem value of the salt marshes in terms of cultural, provisioning, regulating, and supporting ecosystem services, with a special emphasis on the possible alterations of the blue carbon, nitrogen, and phosphorous stocks retained in these key environments. Thus, the need to integrate plant physiological characteristics and feedbacks towards the expected climate change-driven stressors becomes evident to accurately estimate the ecosystem services of the salt marsh community, and transfer these fundamental services into economic assets, for a fluid communication of the ecosystems value to stakeholders, decision and policy makers, and environmental management entities.
    Type of Medium: Online Resource
    ISSN: 2076-3417
    Language: English
    Publisher: MDPI AG
    Publication Date: 2021
    detail.hit.zdb_id: 2704225-X
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  • 17
    In: Plants, MDPI AG, Vol. 12, No. 6 ( 2023-03-21), p. 1395-
    Abstract: In this work, we studied the combined effect of increased temperature and atmospheric CO2, salt and drought stress, and inoculation with plant-growth-promoting rhizobacteria (PGPR) on the growth and some nutritional parameters of the edible halophyte Salicornia ramosissima. We found that the increase in temperature and atmospheric CO2, combined with salt and drought stresses, led to important changes in S. ramosissima fatty acids (FA), phenols, and oxalate contents, which are compounds of great importance for human health. Our results suggest that the S. ramosissima lipid profile will change in a future climate change scenario, and that levels of oxalate and phenolic compounds may change in response to salt and drought stress. The effect of inoculation with PGPR depended on the strains used. Some strains induced the accumulation of phenols in S. ramosissima leaves at higher temperature and CO2 while not altering FA profile but also led to an accumulation of oxalate under salt stress. In a climate change scenario, a combination of stressors (temperature, salinity, drought) and environmental conditions (atmospheric CO2, PGPR) will lead to important changes in the nutritional profiles of edible plants. These results may open new perspectives for the nutritional and economical valorization of S. ramosissima.
    Type of Medium: Online Resource
    ISSN: 2223-7747
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2704341-1
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  • 18
    In: Remote Sensing of Environment, Elsevier BV, Vol. 155 ( 2014-12), p. 42-57
    Type of Medium: Online Resource
    ISSN: 0034-4257
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2014
    detail.hit.zdb_id: 1498713-2
    SSG: 11
    SSG: 14
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  • 19
    In: Remote Sensing of Environment, Elsevier BV, Vol. 272 ( 2022-04), p. 112917-
    Type of Medium: Online Resource
    ISSN: 0034-4257
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 1498713-2
    SSG: 11
    SSG: 14
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  • 20
    In: Biotropica, Wiley, Vol. 49, No. 6 ( 2017-11), p. 881-890
    Abstract: Apesar de machos e fêmeas de várias espécies animais apresentarem diferenças no uso do habitat, as respostas específicas dos diferentes sexos à fragmentação florestal têm sido pouco estudadas. Este estudo analisou as respostas de machos e fêmeas de duas espécies de morcegos Amazônicos ( Carollia perspicillata e Rhinophylla pumilio ) em um gradiente de perturbação florestal incluindo o interior de florestas contínuas e fragmentos, bordas e matriz. Antevendo potenciais efeitos de sazonalidade na resposta de ambos os sexos, foram analisados de forma independente dados das estações seca e chuvosa. Também foram investigados em várias escalas focais, o efeito conjunto da estrutura da vegetação e da composição e configuração da paisagem na abundância. Os nossos resultados revelam que apesar de ambos os sexos reagirem de forma semelhante ao gradiente de perturbação analisado, para ambas as espécies, machos e fêmeas apresentam respostas diferenciadas em pelo menos uma das estações consideradas. Observou‐se ainda que, apesar das proporções entre machos e fêmeas serem equilibradas no interior de floresta contínua e fragmentos, para ambas as espécies as fêmeas superam os machos na borda e na matriz. Ademais, a resposta da abundância à estrutura da vegetação e composição e configuração da paisagem diferiram entre machos e fêmeas e as diferenças observadas foram consistentemente mais pronunciadas na estação seca. Os resultados revelam diferenças consideráveis na resposta de machos e fêmeas à fragmentação e degradação florestal, complementando desta forma o atual conhecimento relativo ao impacto da fragmentação sobre comunidades de vertebrados tropicais.
    Type of Medium: Online Resource
    ISSN: 0006-3606 , 1744-7429
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2052061-X
    SSG: 12
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