نتایج جستجو برای: seed reserve

تعداد نتایج: 107653  

Journal: :journal of computer and robotics 0
toktam nikfarjam department of electrical, biomedical and mechatronic engineering, qazvin branch, islamic azad university, qazvin, iran karim afshar department of electrical, biomedical and mechatronic engineering, qazvin branch, islamic azad university, qazvin, iran

this paper demonstrates a method to how reserve capacity and cost allocation could be determined in a pool-based and disaggregated market model. the method considers both the spinning reserve and interruptible loads as the operating reserve services. in the proposed market, generators and consumers (including participation of interruptible loads) submit offers and bids to the independent system...

2017
John Terborgh Carlos A. Peres

Community-managed reserves (CMRs) comprise the fastest-growing category of protected areas throughout the tropics. CMRs represent a compromise between advocates of nature conservation and advocates of human development. We ask whether CMRs succeed in achieving the goals of either. A fixed reserve area can produce only a finite resource supply, whereas human populations exploiting them tend to e...

Journal: :Revista de biologia tropical 2008
Miguel Avendaño Marcela Cantillánez Marcel Le Pennec Gérard Thouzeau

Seasonality, amplitude, and magnitude of spawning events were determined for Argopecten purpuratus in the La Rinconada marine reserve, Antofagasta, Chile, between December 1995 and January 2004. During the same period, samples of scallop larvae were obtained in vertical plankton hauls recovered within this reserve in an area routinely exposed to circular, gyre-like currents which helped retain ...

Journal: :Ecology 2010
Quinn E Fletcher Stan Boutin Jeffrey E Lane Jalene M LaMontagne Andrew G McAdam Charles J Krebs Murray M Humphries

Mast seeding involves the episodic and synchronous production of large seed crops by perennial plants. The predator satiation hypothesis proposes that mast seeding maximizes seed escape because seed predators consume a decreasing proportion of available seeds with increasing seed production. However, the seed escape benefits of masting depend not only on whether predators are satiated at high l...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Miguel Martínez-Ramos Iván A. Ortiz-Rodríguez Daniel Piñero Rodolfo Dirzo José Sarukhán

Anthropogenic disturbances affecting tropical forest reserves have been documented, but their ecological long-term cumulative effects are poorly understood. Habitat fragmentation and defaunation are two major anthropogenic threats to the integrity of tropical reserves. Based on a long-term (four decades) study, we document how these disturbances synergistically disrupt ecological processes and ...

Journal: :Pesquisa Agropecuaria Brasileira 2023

Abstract The objective of this work was to evaluate the effects application glyphosate herbicide on seed reserve mobilization and seedling morphology genetically modified soybean. Two herbicide-tolerant (TMG 1264RR P98Y11) two herbicide-sensitive (Emgopa 315 UFUS 7415) cultivars were selected for study subjected germination, length, tests after treatments with solutions at concentrations 0.00, ...

2013
Yange Wang Xiaohui Yang Zhongjie Shi

The western Ordos Plateau is a key area of shrub diversity and a National Nature Reserve of endangered shrub species in north-west China. Desert expansion is becoming the most important threat to these endangered species. However, little is known about the effects of sand burial on the dynamics of the shrub community. This study aims to investigate how the shrubs as a community and as different...

2016
Ofer Stein Tamar Avin-Wittenberg Ina Krahnert Hanita Zemach Vlada Bogol Oksana Daron Roni Aloni Alisdair R. Fernie David Granot

Sucrose (a disaccharide made of glucose and fructose) is the primary carbon source transported to sink organs in many plants. Since fructose accounts for half of the hexoses used for metabolism in sink tissues, plant fructokinases (FRKs), the main fructose-phosphorylating enzymes, are likely to play a central role in plant development. However, to date, their specific functions have been the su...

Journal: :Molecular & cellular proteomics : MCP 2006
Ganesh Kumar Agrawal Jay J Thelen

Seed filling is a dynamic, temporally regulated phase of seed development that determines the composition of storage reserves in mature seeds. Although the metabolic pathways responsible for storage reserve synthesis such as carbohydrates, oils, and proteins are known, little is known about their regulation. Protein phosphorylation is a ubiquitous form of regulation that influences many aspects...

2015
Asmita Sengupta Kim R. McConkey Sindhu Radhakrishna Bi-Song Yue

Human provisioning of wildlife with food is a widespread global practice that occurs in multiple socio-cultural circumstances. Provisioning may indirectly alter ecosystem functioning through changes in the eco-ethology of animals, but few studies have quantified this aspect. Provisioning of primates by humans is known to impact their activity budgets, diets and ranging patterns. Primates are al...

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