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Goyette Jean-Olivier Cimon-Morin Jérôme Mendes Poliana Thériault Maxime Pellerin Stéphanie Poulin Monique 《Landscape Ecology》2021,36(9):2691-2706
Landscape Ecology - Human activities have led to the degradation of wetlands, impinging on their capacity to deliver essential ecosystem services to society. Wetland restoration now appears an... 相似文献
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Sampaio Fernando Antônio Rebouças Teixeira Filho Marcelo Carvalho Minhoto da Silva Oliveira Carlos Eduardo Jalal Arshad Boleta Eduardo Henrique Marcandalli de Lima Bruno Horschut Rosa Poliana Aparecida Leonel Galindo Fernando Shintate de Souza Jeferson Silva 《Journal of Crop Science and Biotechnology》2021,24(4):429-439
Journal of Crop Science and Biotechnology - The rhizobacteria of genus Azospirillum and Bacillus are effective at fixing atmospheric nitrogen, promote plant growth and can largely contribute to... 相似文献
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Poliana Perrut-Lima Gilda S. Mühlen Cassia R. L. Carvalho 《Genetic Resources and Crop Evolution》2014,61(6):1035-1038
Manioc (Manihot esculenta Crantz subsp. esculenta) is a tropical staple crop that was domesticated from M. esculenta Crantz subsp. flabellifolia in southwestern Amazonia. After domestication, different selective pressures created two large groups of varieties based on cyanogenic glycoside (HCN) content: sweet and bitter manioc. The characterization of HCN content in subsp. flabellifolia will help understand the original selection pressures that either reduced or increased the concentration of HCN in the edible root. We collected leaves, fruits and roots of five mature plants of subsp. flabellifolia chosen at random from each of six populations located in central Rondônia, Brazil. Analyses of HCN were performed by the enzymatic method with some modifications. All parts of the plant contained moderate to high (84–717 mg HCN kg?1 fresh weight) concentrations of HCN, especially in the fruits. Both the bark and the starchy flesh of roots had moderate to high concentrations of HCN (198 ± 103 and 244 ± 105 mg HCN kg?1 fresh weight, respectively), which classifies these populations as bitter. 相似文献
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da Silva Aline Priscilla Gomes Spricigo Poliana Cristina Purgatto Eduardo de Alencar Severino Matias Jacomino Angelo Pedro 《Plant foods for human nutrition (Dordrecht, Netherlands)》2019,74(3):358-363
Plant Foods for Human Nutrition - The aim of the present study was to identify volatile organic compounds (VOCs) by SPME-GC and quantify the bioactive compounds (ascorbic acid, total flavonoids and... 相似文献
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Ana Lúcia Almeida Santana Paulo Levi de Oliveira Carvalho Eliseu Carlos Cristofori Poliana Caroline da Silva Chambo Mariana Barbizan Ricardo Vianna Nunes Cristine Regina Gregory Jansller Luiz Genova 《Tropical animal health and production》2018,50(3):477-484
The aim of this study was to evaluate the effect of supplementation of pig diets in the growth and termination phases with different calcium sources. In experiment I, 36 whole males were distributed in randomized blocks in six groups, with six replications. A basal diet was formulated to meet the animals’ nutritional requirements except for calcium (0.09%), and the sources evaluated (calcitic limestone, monodicalcium phosphate, calcinated bone flour, and oyster flour) replaced the basal diet to provide 0.59% of total calcium. To determine the endogenous calcium, a diet containing low calcium (0.019%) was given simultaneously to another group of animals. Feces and urine were collected for determination the coefficients of apparent and true digestibility. In experiment II, 160 piglets were distributed in randomized blocks in four treatments, with five replications and four animals per experimental unit. Carcass and performance parameters, calcium concentration in bone and serum, and bone parameters were evaluated. The data were submitted to analysis of variance and factorial. The calcium source did not influence the digestibility coefficients determined by total collection (P > 0.05). The digestibility of Ca from oyster flour estimated by collection with an indicator was higher than that from the other sources (P < 0.05). Calcium sources did not interfere in the evaluated parameters (P > 0.05). The sources studied in this work can be used to supplement growing pigs’ diets. 相似文献
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Poliana Mendes Kimberly A. With Luciana Signorelli Paulo De MarcoJr. 《Landscape Ecology》2017,32(4):745-762
Context
Species site-occupancy patterns may be influenced by habitat variables at both local and landscape scales. Although local habitat variables influence whether the site is suitable for a given species, the broader landscape context can also influence site occupancy, particularly for species that are sensitive to land-use change.Objectives
To examine the relative importance of local versus landscape variables in explaining site occupancy of eight bat species within the Brazilian Cerrado, a Neotropical savanna that is experiencing widespread habitat loss and fragmentation.Methods
Bats were surveyed within 16 forest patches over two years. We used a multi-model information-theoretic approach, adjusted for species detection bias, to assess whether landscape variables (percent cover and number of patches of natural vegetation within a 2- and 8-km radius of each forest site) or local site variables (canopy cover, understory height, number of trees, and number of lianas) best explained site occupancy in each species.Results
Landscape variables were among the best models (ΔAICc or ΔQAICc < 2) for four species (top-ranked model for black myotis), whereas local variables were among the best for five species (top-ranked model for vampire bats). Neither local nor landscape variables explained site occupancy in two frugivorous species.Conclusion
Species associated with a particular habitat type will not respond similarly to the amount, distribution or relative suitability of that habitat, or even at the same scale. This reinforces the challenge of species distribution modelling, especially in the context of forecasting species’ responses to future land-use or climate-change scenarios.9.
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Tassiane Novacosque Feitosa Guerra Maria Jesus Nogueira Rodal Ana Carolina Borges Lins e Silva Marccus Alves Maria Amanda Menezes Silva Poliana Gabriella de Araújo Mendes 《Journal of Forest Research》2013,18(2):200-208
Like edge effects, variations in topography can influence the physiognomy and structural patterns of the vegetation due to the high dynamics encountered in inclined areas. We evaluated the effect of edges on the structure and physiognomy of the arboreal and woody understory communities in patches of an Atlantic Forest remnant in two distinct topographic positions. Four study situations were laid out (slope edge, top edge, slope interior, and top interior), with ten 10 × 10 m plots each to sample the arboreal components (circumference at breast height ≥15 cm), and ten 5 × 5 m plots (in the corner of each arboreal component plot) to sample the woody understory (circumference at ground level ≥3 cm and with circumference at breast height <15 cm). We investigated physiognomic and structural variables of edge and interior environments in similar topographic positions on both slope and top (level) areas of the same remnant forest. Physiognomic and structural differences between edge and interior vegetation were noted, and these were found to be still more evident when different topographic positions were considered. Physiognomic and structural variations between the edge and interior vegetation were more notable on slopes than on hill tops, indicating greater dynamics in areas with greater topographic inclinations. 相似文献
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