scholarly journals A THEORETICAL ASSESSMENT OF THE ENVIRONMENTAL CHANGE FROM FLOODPLAIN RICE FIELDS TO IRRIGATED PERIMETERS: A CASE STUDY IN THE SAN FRANCISCO SERGIPANO LOW VALLEY IN THE NORTHEAST REGION OF BRAZIL

2017 ◽  
Author(s):  
GEDÁLIA C. SANTOS
Keyword(s):  
Environmental Change ◽  
San Francisco ◽  
Rice Fields ◽  
Northeast Region ◽  
Theoretical Assessment

Environmental Change and the Cashew Sector: A Case Study in Manding-speaking Côte d'Ivoire

Mande Studies ◽  
2019 ◽  
Vol 21 ◽  
pp. 174
Author(s):  
Rojas ◽  
West ◽  
Hellweg ◽  
McDaniel ◽  
Moody
Keyword(s):  
Environmental Change ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

Effect of environmental change on species diversity of bryophytes: a case study in Xujiahui (Zi ka Wei) area, Shanghai

2008 ◽  
Vol 16 (2) ◽  
pp. 181 ◽  
Author(s):  
Liu Yan ◽  
Cao Tong ◽  
Lou Yuxia
Keyword(s):  
Species Diversity ◽  
Environmental Change

Gender Differences in Graduate Bioentrepreneurship Education - A Case Study: University of San Francisco

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Moira Gunn ◽  
Cary Lai ◽  
Paul Lorton
Keyword(s):  
Gender Differences ◽  
San Francisco

scholarly journals Managed Wetlands Can Benefit Juvenile Chinook Salmon in a Tidal Marsh

2021 ◽  
Author(s):  
Nicole M. Aha ◽  
Peter B. Moyle ◽  
Nann A. Fangue ◽  
Andrew L. Rypel ◽  
John R. Durand
Keyword(s):  
San Francisco ◽  
Growth Rates ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Nursery Habitat ◽  
San Francisco Estuary ◽  
Rice Fields ◽  
Fish Growth ◽  
Juvenile Chinook Salmon ◽  
Juvenile Chinook

AbstractLoss of estuarine and coastal habitats worldwide has reduced nursery habitat and function for diverse fishes, including juvenile Chinook salmon (Oncorhynchus tshawytscha). Underutilized off-channel habitats such as flooded rice fields and managed ponds present opportunities for improving rearing conditions and increasing habitat diversity along migratory corridors. While experiments in rice fields have shown enhanced growth rates of juvenile fishes, managed ponds are less studied. To evaluate the potential of these ponds as a nursery habitat, juvenile Chinook salmon (~ 2.8 g, 63 mm FL) were reared in cages in four contrasting locations within Suisun Marsh, a large wetland in the San Francisco Estuary. The locations included a natural tidal slough, a leveed tidal slough, and the inlet and outlet of a tidally muted managed pond established for waterfowl hunting. Fish growth rates differed significantly among locations, with the fastest growth occurring near the outlet in the managed pond. High zooplankton biomass at the managed pond outlet was the best correlate of salmon growth. Water temperatures in the managed pond were also cooler and less variable compared to sloughs, reducing thermal stress. The stress of low dissolved oxygen concentrations within the managed pond was likely mediated by high concentrations of zooplankton and favorable temperatures. Our findings suggest that muted tidal habitats in the San Francisco Estuary and elsewhere could be managed to promote growth and survival of juvenile salmon and other native fishes.

UNDERSTANDING PERCEPTIONS OF CHANGE: A PATHWAYS CONTRIBUTION TO COMMUNITY CONSULTATION AND ENVIRONMENTAL DECISION-MAKING

2004 ◽  
Vol 06 (02) ◽  
pp. 189-211 ◽  
Author(s):  
MARK LEMON ◽  
PAUL JEFFREY ◽  
BRIAN S. MCINTOSH ◽  
TIM OXLEY
Keyword(s):  
Environmental Change ◽  
Relevant Information ◽  
Clear Understanding ◽  
Community Consultation ◽  
The Public ◽  
Environmental Decision Making ◽  
Individual Perceptions ◽  
Time Space ◽  
The Uk

Participation has become part of the language of environmental management. While this move is positive there remains a danger that overly formalised and restricted participatory procedures, in terms of the information sought, may constrain and hinder dialogue and learning between the public and management agencies. Responses to specific issues are often sought from members of the public without a clear understanding about whether those issues are salient to them, where they are salient or how they fit into multiple and dynamic interpretations of environmental change. This paper uses case study material from the UK to demonstrate a novel Pathways Approach to the recording and analysis of individual perceptions about environmental change. The approach seeks to concentrate on experience and interpretation and is based on the conceptualisation of perceived cause–effect relationships and the pathways that support them. The links between time, space and community are considered within this analysis, as is the potential for improved participation through the provision of policy relevant information to planners and environmental managers operating in complex, multi-perspective situations.

Oxygen isotope seasonality in a temperate estuarine shell midden: a case study from CA-ALA-17 on the San Francisco Bay, California

2009 ◽  
Vol 36 (7) ◽  
pp. 1354-1363 ◽  
Author(s):  
Brendan J. Culleton ◽  
Douglas J. Kennett ◽  
Terry L. Jones
Keyword(s):  
Oxygen Isotope ◽  
San Francisco ◽  
San Francisco Bay ◽  
Shell Midden

scholarly journals A Quantitative Evaluation of the Multiple Narratives of the Recent Sahelian Regreening*

2016 ◽  
Vol 8 (1) ◽  
pp. 67-83 ◽  
Author(s):  
Mimi Stith ◽  
Alessandra Giannini ◽  
John del Corral ◽  
Susana Adamo ◽  
Alex de Sherbinin
Keyword(s):  
Spatial Distribution ◽  
Population Density ◽  
Environmental Change ◽  
Burkina Faso ◽  
Social Dimensions ◽  
Adaptation To Climate Change ◽  
Southern Central ◽  
Second Category ◽  
The Impact

Abstract A spatial analysis is presented that aims to synthesize the evidence for climate and social dimensions of the “regreening” of the Sahel. Using an independently constructed archival database of donor-funded interventions in Burkina Faso, Mali, Niger, and Senegal in response to the persistence of drought in the 1970s and 1980s, the spatial distribution of these interventions is examined in relation to population density and to trends in precipitation and in greenness. Three categories of environmental change are classified: 1) regions at the northern grassland/shrubland edge of the Sahel where NDVI varies interannually with precipitation, 2) densely populated cropland regions of the Sahel where significant trends in precipitation and NDVI decouple at interannual time scales, and 3) regions at the southern savanna edge of the Sahel where NDVI variation is independent of precipitation. Examination of the spatial distribution of environmental change, number of development projects, and population density brings to the fore the second category, covering the cropland areas where population density and regreening are higher than average. While few, regions in this category coincide with emerging hotspots of regreening in northern Burkina Faso and southern central Niger known from case study literature. In examining the impact of efforts to rejuvenate the Sahelian environment and livelihoods in the aftermath of the droughts of the 1970s and 1980s against the backdrop of a varying and uncertain climate, the transition from desertification to regreening discourses is framed in the context of adaptation to climate change.

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