Acúmulo de clorofila e produção de biomassa em hortelã-verde sob diferentes níveis de adubação orgânica

O cultivo de plantas medicinais assume importância mundial devido à demanda exercida pelas indústrias químicas, farmacêuticas, alimentares e de cosméticos. Entre as plantas medicinais, a Mentha spicata L., apresenta óleo essencial de grande interesse econômico. A aplicação de esterco bovino curtido melhora as condições físicas do solo, além de fornecer nutrientes para as plantas. Nutrientes que contribuem para diversos processos metabólicos no vegetal. Dentre estes, a síntese e manutenção de pigmentos. Este trabalho teve como objetivo avaliar a produção de massa fresca de folhas, massa fresta total os teores de clorofila de plantas de hortelã verde da Mentha spicata L., sob cultivo com diferentes doses de esterco bovino na Universidade Federal do Tocantins - Campus Universitário de Gurupi. Os tratamentos constituíram-se de sete doses de esterco (0, 25, 50, 75, 100, 150 e 300 kg m²), com três repetições. O resultado para tais condições de cultivo recomenda-se 16,3 kg m2 de esterco bovinoquando o objetivo é a produção de massa fresca de folhas, e 19,47 kg  m2 de esterco bovino para obtenção de uma maior produção de massa fresca da parte aérea(folhas com talos). Já os resultados sobre o fornecimento de nutrientes via adubação orgânica mostraram não tem efeito sobre os teores de clorofila total, clorofila a, clorofila b e a relação clorofila a/b.

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Educomunicação e suas áreas de intervenção: Novos paradigmas para o diálogo intercultural

oai:omp.abpeducom.org.br:publicationFormat/1O material aqui divulgado representa, em essência, a contribuição do VII Encontro Brasileiro de Educomunicação ao V Global MIL Week, da UNESCO, ocorrido na ECA/USP, entre 3 e 5 de novembro de 2016. Estamos diante de um conjunto de 104 papers executivos, com uma média de entre 7 e 10 páginas, cada um. Com este rico e abundante material, chegamos ao sétimo e-book publicado pela ABPEducom, em seus seis primeiros anos de existência. A especificidade desta obra é a de trazer as “Áreas de Intervenção” do campo da Educomunicação, colocando-as a serviço de uma meta essencial ao agir educomunicativo: o diálogo intercultural, trabalhado na linha do tema geral do evento internacional: Media and Information Literacy: New Paradigms for Intercultural Dialogue

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Acúmulo de clorofila e produção de biomassa em hortelã-verde sob diferentes níveis de adubação orgânica

O cultivo de plantas medicinais assume importância mundial devido à demanda exercida pelas indústrias químicas, farmacêuticas, alimentares e de cosméticos. Entre as plantas medicinais, a Mentha spicata L., apresenta óleo essencial de grande interesse econômico. A aplicação de esterco bovino curtido melhora as condições físicas do solo, além de fornecer nutrientes para as plantas. Nutrientes que contribuem para diversos processos metabólicos no vegetal. Dentre estes, a síntese e manutenção de pigmentos. Este trabalho teve como objetivo avaliar a produção de massa fresca de folhas, massa fresta total os teores de clorofila de plantas de hortelã verde da Mentha spicata L., sob cultivo com diferentes doses de esterco bovino na Universidade Federal do Tocantins - Campus Universitário de Gurupi. Os tratamentos constituíram-se de sete doses de esterco (0, 25, 50, 75, 100, 150 e 300 kg m²), com três repetições. O resultado para tais condições de cultivo recomenda-se 16,3 kg m2 de esterco bovinoquando o objetivo é a produção de massa fresca de folhas, e 19,47 kg  m2 de esterco bovino para obtenção de uma maior produção de massa fresca da parte aérea(folhas com talos). Já os resultados sobre o fornecimento de nutrientes via adubação orgânica mostraram não tem efeito sobre os teores de clorofila total, clorofila a, clorofila b e a relação clorofila a/b. </p

Resumos concluídos - História

Resumos concluídos - Históri