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| Registros recuperados: 15 | |
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| Menezes,Luis Fernando Tavares de; Pugnaire,Francisco I.; Matallana,Gloria; Nettesheim,Felipe Cito; Carvalho,Daniel Costa de; Mattos,Eduardo Arcoverde de. |
| ABSTRACT Germination rate and establishment success of plants in harsh environments depend on the ability of seeds to withstand unfavorable environmental conditions and avoid predators. Brazilian coastal plains, known as restinga, are subject to environmental factors that seriously limit plant establishment and survival (e.g. salinity, desiccation, oligotrophy, flooding, high temperature and radiation levels). We tested, both in field and laboratory experiments, conditions for germination and establishment of Allagoptera arenaria, a palm tree often found in restinga ecosystems of southeastern Brazil, and which have a principal role in plant community dynamics. Our results showed that the absence of mesocarp, high radiation exposure, and temperature were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arecaceae; Facilitation; Resting; Secondary dispersion; Seedling. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100012 |
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| Carvajal,Danny E; Loayza,Andrea P; López,Ramiro P; Toro,Pablo J; Squeo,Francisco A. |
| BACKGROUND: In arid environments, where light and water supply are patchy in space and time, differences in how seedlings tolerate drought and shade conditions will determine the ability of a species to establish. Understanding seedling responses to the interactive effects of water and shade is critical to predict the future impact of increasing drought frequencies on plant communities across many arid ecosystems of the world. In this study, we used an experimental field approach to assess how different light (15%, 75%, and 95%) and water (natural rainfall (NR), NR +50 mm, NR +100 mm) levels affect seedling survival and growth of four Atacama Desert shrub species (Calliandra chilensis, Encella canescens, Proustia cuneifolia, and Senna cumingii). We... |
| Tipo: Journal article |
Palavras-chave: Seedling establishment; Facilitation; Drought; Atacama Desert. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100025 |
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| Reis,Ademir; Bechara,Fernando Campanhã; Tres,Deisy Regina. |
| Ecological theories of facilitation and nucleation are proposed as a basis for environmental restoration in tropical ecosystems. The main goal of this paper is to present restoration techniques based on the concept of nucleation, in which small nuclei of vegetation are established within a degraded land. The nucleation techniques (artificial shelters for animals, planting of herbaceous shrub life forms, soil and seed bank translocation, seed rain translocation, soil and seed rain translocation's seedling set, artificial perches, planting of native trees in groups, and ecological stepping-stones with functional groups) promote the landscape connectivity on two flows: inward: receiver connectivity and outward: donor connectivity. The nuclei development... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Facilitation; Succession; Heterogeneity; Landscape connectivity; Degraded areas. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200018 |
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| Arnold, Jennifer S; School of Natural Resources and the Environment, University of Florida; jsarnold@ufl.edu; Koro-Ljungberg, Mirka; School of Human Development and Organizational Studies, University of Florida ; mirka@ufl.edu; Bartels, Wendy-Lin; Florida Climate Institute, University of Florida; wendylin@ufl.edu. |
| Adaptive collaborative management emphasizes stakeholder engagement as a crucial component of resilient social-ecological systems. Collaboration among diverse stakeholders is expected to enhance learning, build social legitimacy for decision making, and establish relationships that support learning and adaptation in the long term. However, simply bringing together diverse stakeholders does not guarantee productive engagement. Using critical discourse analysis, we examined how diverse stakeholders negotiated knowledge and power in a workshop designed to inform adaptive management of riparian livestock grazing on a National Forest in the southwestern USA. Publicly recognized as a successful component of a larger collaborative effort, we found that the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Collaboration; Conflict; Critical discourse analysis; Dialogue; Facilitation; Livestock grazing; Public participation; Riparian management social learning stakeholder engagement. |
| Ano: 2012 |
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| van der Kroon, Sandra M.A.; Zaalmink, Wim; Geerling-Eiff, F.A.; de Grip, K.; Hubeek, Francisca B.; Leeuwis, C.; Wielinga, H.E.; van Wijk-Jansen, Elvi E.C.. |
| Since the privatization of the agricultural extension service in the Netherlands and the need for a more market oriented approach, the agricultural innovation system "REE" (from Research through Extension and Education to farmers), no longer seems to provide a suitable response to the complex social changes faced by the agricultural sector. The research programme "Networks in Livestock Farming" can be seen as an experiment aimed at giving a new shape to the interaction between practice, research and policy and thus increasing the self-solving ability of farmers and encouraging innovation in livestock farming in the Netherlands. In 2004, 50 networks of livestock farmers were facilitated by 35 project directors from Wageningen University and Research Center... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Networks; Knowledge generation; Sustainable innovations; Facilitation; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2005 |
URL: http://purl.umn.edu/24248 |
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| Registros recuperados: 15 | |
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