Moroccan Forestry Policies and Local Forestry Management in the High Atlas: A Cross Analysis of Forestry Administration and Local Institutions     

Pierre-Marie Aubert  Maya Leroy  Laurent Auclair 《Small-Scale Forestry》2009,8(2):175-191

This paper examines how local forestry management has evolved in the Aït Bougmez Valley (Central High Atlas, Morocco) in the last three decades and how this evolution has affected forest ecosystem conditions. It focuses on the impact of the forestry administration on ‘traditional forestry management’ since its introduction in 1985, and of recent innovation in forestry policy. The relatively new Strategic Environmental Management Analysis (SEMA) framework is applied, rather than a more ‘classical’ new institutional framework. This approach allows for a more comprehensive understanding of both strategic interactions between various actors and ecological consequences of these interactions. An interesting empirical findings is that instead of a quite simple opposition between the forestry administration and local populations, negotiation opportunities exist that are taken by the actors. This leads to specific actor configurations and sometimes unexpected environmental outcomes, even if from a global point of view, forest stands have been seriously depleted over the last 40 years mainly due to exploitation by local population and the absence of economic alternative to forest exploitation. On the other hand, the implementation of a new policy tool in such a context has to be understood as an opportunity for new actors to take part in forest management rules definition.  相似文献   

Managing Amazonian palms for community use: A case of aguaje palm (Mauritia flexuosa) in Peru     

Maya Manzi  Oliver T. Coomes 《Forest Ecology and Management》2009

Amazonian palms are prime candidates for sustainable management of non-timber forest products and yet useful species are often harvested destructively. This paper examines a promising management initiative for one of the most useful Amazonian palms – Mauritia flexuosa – in a rural community of northeastern Peru. Based on data from household surveys (n = 57), filmed in-depth interviews, focus groups and participant observation, we identify the factors that influence: (1) the adoption of a locally developed climbing device for wild-harvesting of aguaje palm fruit; (2) the continued practice by some households of palm felling for harvesting fruit; and, (3) investment by households in planting and cultivation of aguaje palm. Our findings identify key conditions for palm management and point to the particular importance of the adoption of palm-climbing devices, not only for reducing wild palm felling but also for stimulating broader community-level conservation as well as efforts to cultivate the palm.  相似文献   

Chronic mucocutaneous candidiasis in humans with inborn errors of interleukin-17 immunity   总被引：1，自引：0，他引：1  

Puel A  Cypowyj S  Bustamante J  Wright JF  Liu L  Lim HK  Migaud M  Israel L  Chrabieh M  Audry M  Gumbleton M  Toulon A  Bodemer C  El-Baghdadi J  Whitters M  Paradis T  Brooks J  Collins M  Wolfman NM  Al-Muhsen S  Galicchio M  Abel L  Picard C  Casanova JL 《Science (New York, N.Y.)》2011,332(6025):65-68

Chronic mucocutaneous candidiasis disease (CMCD) is characterized by recurrent or persistent infections of the skin, nails, and oral and genital mucosae caused by Candida albicans and, to a lesser extent, Staphylococcus aureus, in patients with no other infectious or autoimmune manifestations. We report two genetic etiologies of CMCD: autosomal recessive deficiency in the cytokine receptor, interleukin-17 receptor A (IL-17RA), and autosomal dominant deficiency of the cytokine interleukin-17F (IL-17F). IL-17RA deficiency is complete, abolishing cellular responses to IL-17A and IL-17F homo- and heterodimers. By contrast, IL-17F deficiency is partial, with mutant IL-17F-containing homo- and heterodimers displaying impaired, but not abolished, activity. These experiments of nature indicate that human IL-17A and IL-17F are essential for mucocutaneous immunity against C. albicans, but otherwise largely redundant.  相似文献   

Dissolved nitrogen model for paddy field ponded water during irrigation period     

Ikuo?YoshinagaEmail author  Yanwen?Feng  Ram?Karan?Singh  Eisaku?Shiratani 《Paddy and Water Environment》2004,2(3):145-152

Based on an experimental field study in Japan, a model was developed to simulate dissolved nitrogen in water ponded in a paddy field. As input data, the model uses meteorological data, water balance in the field, nitrogen concentration in inlet water, and the nitrogen contribution of applied fertilizer. Five model parameters need calibration. A practical application of the model is the simulation of NH₄-N and NO₂₊₃-N concentrations in water ponded in a paddy field. The model improves our understanding of the interactions between forms of dissolved nitrogen in ponded water and can explain the complex changes in dissolved nitrogen concentrations in water ponded on a paddy field.  相似文献   

Association of dhurrin levels and post-flowering non-senescence with resistance to stalk rot pathogens in Sorghum bicolor     

Funnell-Harris  Deanna L.  Sattler  Scott E.  O&#;Neill  Patrick M.  Toy  John J.  Bernhardson  Lois F.  Kilts  Mark R.  Khasin  Maya 《European journal of plant pathology / European Foundation for Plant Pathology》2022,162(1):237-246

European Journal of Plant Pathology - Aflatoxin contamination is common in several crops, including maize, in warm agricultural areas. For over 40 years, there have been many efforts to...  相似文献   

First report of dry rot of potato caused by Fusarium proliferatum in India     

Tiwari  Rahul Kumar  Bashyal  Bishnu Maya  Shanmugam  V.  Lal  Milan Kumar  Kumar  Ravinder  Sharma  Sanjeev  Naga  Kailash Chandra  Chourasia  Kumar Nishant  Aggarwal  Rashmi 《植物病害和植物保护杂志》2022,129(1):173-179

Journal of Plant Diseases and Protection - Potato stands first as a non-cereal food crop for global consumption purposes. During the year 2019–20, dry rot disease symptoms were observed on...  相似文献   

A review of associated controversies surrounding glucocorticoid use in veterinary emergency and critical care          下载免费PDF全文

Maya A. Aharon DVM  Jennifer E. Prittie DVM  DACVECC  Kate Buriko DVM  DACVECC 《Journal of Veterinary Emergency and Critical Care》2017,27(3):267-277

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Effect of support medium,hydraulic loading rate and plant density on water quality and growth of halophytes in marine aquaponic systems          下载免费PDF全文

Suzanne E Boxman  Michael Nystrom  Joseph C Capodice  Sarina J Ergas  Kevan L Main  Maya A Trotz 《Aquaculture Research》2017,48(5):2463-2477

The development of marine intensive land‐based aquaculture systems has been limited due to the absence of methods to manage saline wastewater. Aquaponic systems, although commonly applied to freshwater aquaculture, can potentially manage nutrient wastes while providing a secondary product. The aim of this study was to evaluate both the capacity for water treatment and the production requirements of two saltwater‐tolerant plant species (Sesuvium portulacastrum and Batis maritima) when grown hydroponically in a marine aquaponic system. The presence of plants was found to significantly contribute to nitrate removal, such that mean nitrate concentrations were 10.1 ± 5.4 and 12.1 ± 6.1 mg/L NO₃^?‐N in planted and unplanted treatments respectively. The use of coconut fibre as a planting medium also significantly contributed to nitrate removal, such that mean nitrate concentrations were 9.78 ± 5.4 and 12.4 ± 6.0 mg/L NO₃^?‐N in coconut fibre and expanded clay treatments respectively. Daily nitrogen removal was greatest in the coconut fibre/plants treatment, ranging from ?18% to 67%. Hydraulic loading rate, plant species and plant density did not significantly affect water quality or plant growth. The low flow/saltwort/low density treatment had the greatest mean daily nitrogen removal, ranging from 25% to 172%. The results indicate that the main nitrogen removal mechanisms were simultaneous nitrification–denitrification in the hydroponic plant beds and nitrogen removal through plant growth. This study demonstrates that marine aquaponics could be an effective way to manage nutrient removal in marine land‐based aquaculture systems.  相似文献   

Intra-articular triamcinolone acetonide injection results in increases in systemic insulin and glucose concentrations in horses without insulin dysregulation     

Brooke L. Boger  Jane M. Manfredi  Abigail R. Loucks  Maya Z. Salamey  Lydia E. Kapeller  Allie G. Fricano  Ani Winkler  Chelsey Yob  Aimee C. Colbath 《Equine veterinary journal》2024,56(2):326-331

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