10 research outputs found

    ÁRVORES E PALMEIRAS DO JARDIM BOTÂNICO MUNICIPAL PREFEITO CARROL MENEGHEL, AMERICANA (SP)

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    Este trabalho foi desenvolvido no Jardim Botânico Municipal Prefeito Carrol Meneghel, localizado em Americana (SP), que apresenta área de 85 mil metros quadrados, com vegetação formada por cerca de 8,5 mil árvores e palmeiras, a maioria das quais plantada nos últimos 10 anos, incluindo espécies nativas e exóticas. Foram identificados aproximadamente 3000 indivíduos por toda a extensão do jardim botânico, incluindo 305 espécies pertencentes a 60 famílias distintas, sendo que Fabaceae, Myrtaceae e Bignoniaceae foram as que apresentaram maior número de indivíduos. Também em relação a estas famílias, observou-se maior riqueza de espécies, sendo 61 espécies de Fabaceae, 31 de Myrtaceae e 14 de Bignoniaceae. Além da lista de espécies, estão apresentados aqui também o nome popular e a distribuição geográfica

    From forests to cattail: how does the riparian zone influence stream fish?

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    The aim of this study was to verify whether taxonomic and functional composition of stream fishes vary under three different preservation conditions of riparian zone: preserved (PRE), intermediate condition (INT), and degraded (DEG). Five stream stretches representing each condition were selected. Samples were taken from each stream in three occasions during the dry seasons from 2004 to 2007. Electro fishing (PRE and INT), sieves, dip nets, and hand seines (DEG) were used according to the characteristics of each sampled site. Overall, 46 species were registered. Differences in the taxonomic and functional species composition among groups were found, following the condition of riparian zones. The ichthyofauna recorded in the PRE was typical to pristine environments, consisting of species with specialized habits, notably benthic insectivores, intolerant, and rheophilics. In the INT group, replacement of riparian forest with shrubs and/or grasses created environmental conditions which favor the occurrence of tolerant species but also harbor a residual fauna of sensitive species. DEG streams presented mostly detritivores, tolerant, small sized fishes which occupy the surface and preferred slow water flux. Changes in the species composition were represented by the occurrence and dominance of tolerant species in detriment of the more sensitive and specialist species, following the gradient of degradation in the riparian zone. Forested streams act as unique habitats to many specialized species and it can be presumable that the degradation of riparian vegetation can generate biotic homogenization which may reduce species diversity and ecosystem services

    Global Study of Social Odor Awareness

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    Olfaction plays an important role in human social communication, including multiple domains in which people often rely on their sense of smell in the social context. The importance of the sense of smell and its role can however vary inter-individually and culturally. Despite the growing body of literature on differences in olfactory performance or hedonic preferences across the globe, the aspects of a given culture as well as culturally universal individual differences affecting odor awareness in human social life remain unknown. Here, we conducted a large-scale analysis of data collected from 10 794 participants from 52 study sites from 44 countries all over the world. The aim of our research was to explore the potential individual and country-level correlates of odor awareness in the social context. The results show that the individual characteristics were more strongly related than country-level factors to self-reported odor awareness in different social contexts. A model including individual-level predictors (gender, age, material situation, education, and preferred social distance) provided a relatively good fit to the data, but adding country-level predictors (Human Development Index, population density, and average temperature) did not improve model parameters. Although there were some cross-cultural differences in social odor awareness, the main differentiating role was played by the individual differences. This suggests that people living in different cultures and different climate conditions may still share some similar patterns of odor awareness if they share other individual-level characteristics
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