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Displaying 76 - 90 of 93 records found.
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Sabangan Bato irrigation system, Panangpan, Sabangan Bato, and Bidbiday barrios, Galimuyod, Phillippines

Case
The farms served by the Sabangan Bato Irrigation System are located in the adjoining Barrios of Panangpan, Sabangan Bato, and Bidbiday of the town of Galimuyod in the Ilocos Sur Province in the Philippines. The resource appropriated is water for irrigation in canals that divert water from the Candon River to the adjacent farmlands, and open wells located over the fields. At the beginning of the period, there was a moderate shortage of biological and physical resources withdrawn compared to the...
09 Aug 2016

San Pedro Fishery, Belize

Case
     San Pedro, Belize is an island village of approximately 1,200 residents in 1979. Located off the coast of Belize in a strategic place on Ambergris Cay it is close to abundant local fishing and has easy access to nearby commercial markets (Belize city, Corozal, and Chetumal). The fishing cooperative, Caribena Cooperative Limited, was San Pedro’s official fishing organization handling capture, processing and sale of the village’s primary resource: marine produce consisting of...
09 Aug 2016

Sananeri Tank irrigation system, India

Case
The resource appropriated from Sananeri Tank is water for irrigation. The resource discussed in this study includes a tank and the channels that divert water to the field. The author shows that nonformal local cultivators associations make an important contribution to the overall performance of the irrigation system, even where government agencies are formally responsible for irrigation. Such organizations mobilize local resources in various tasks, including inspection and repair of physical...
09 Aug 2016

Silag-Butir Irrigation System, Barrios Pacang, Silag, Butir, and Cabaruan, Ilocos Sur, Philippines

Case
In the case of the Silag-Butir Irrigation System, ricefields are located in the adjoining Barrios of Silag, Butir, Pacang and Cabaruan (between 1.5 km and 4 km off Santa Maria municipality) in the Ilocos Sur Province in the Philippines. The resource appropriated is water for irrigation. The system serves an area of 115 hectares cultivated by 201-500 total appropriator teams  during wet season and 38 hectares during dry season. At the beginning of the period, there was a moderate shortage...
09 Aug 2016

Takkapala communal irrigation system, Malino village, south Sulawesi, Indonesia

Case
The Takkapala communal irrigation system was studied in the Malino village in Indonesia. The resource harvested is water for irrigation. Although an extensive description of the institutions in the Takkapala Communal System was not presented in this case study on irrigation, the authors did highlight the impact of national subsidies on the rehabilitation of two small-scale river-diversion irrigation systems in Indonesia. Subsidies were substantial inducements to the mobilization of local...
09 Aug 2016

The Discrete Logistic

Model
The logistic is the simplest representation of population dynamics  that contains a minimum level of biological realism.  If we imagine a  population of individuals at time t, the number of individuals in the next period (periods can range from seconds to days to decades depending on the organism) is the number of individuals now plus the number of births minus the number of deaths.  If we assume in the simplest case there are no environmental constraints on births or deaths...
09 Aug 2016

The Emergence and Resilience of Self-organized Governance

Case
This case focuses on the theory of self-organized governance. It is based on developing a formal mathematical model of generalized interactions in the CIS framework.
12 Mar 2020

The Goulburn Broken Catchment irrigation system, northern Victoria, Australia

Case
The GB catchment covers 2.1 million hectares in the Murray-Darling Basin in Australia. Aboriginal people lived in the catchment for millennia before colonization around 1830.  The upper, mountainous area of the catchment (900 000 ha) is more than 50% forested. The mid catchment (1 million ha) of riverine plains, low slopes and foothills has less than 20% of native vegetation cover remaining, which is highly fragmented, and the rest is used for dryland cropping and grazing. The Shepparton...
09 Aug 2016

The Innovation Commons: The Nanotechnology Innovation Network, Phoenix, AZ

Case
 The nanotechnology innovation network of Metropolitan Phoenix ranks among the top thirty across US cities focused on nanotechnology development. The present case examines the structure of the innovation network, consisting of approximately 400 diverse organizations, between 2011 and 2012. The commons dilemma revolves around managing future risks and benefits from nanotechnology development; the resource is a heterogenous mix of natural and human-made infrastructures.
09 Aug 2016

Tourism and Natural Infrastructure in Community de Agua Blanca, Puerto Lopez, Ecuador

Case
Agua Blanca Community is located in the province of Manabí, in the municipality of Puerto López, Machalilla parish. The community, founded in 1930, is within the Machalilla National Park, and occupies an area of 10,500 hectares. It is made up of approximately 80 families, that is, almost 300 people. It possesses one of the largest archaeological settlements on the coast related to the manteña culture (800-1532 AD). The community has historically conducted activities in agriculture and livestock...
02 Dec 2018

Valenca Canoe Fishery

Case
The port of Valenca, which is popular for its canoe-fishing tradition, is located in the state of Bahia, in northeastern Brazil. The original case spans from 1970-1971; the resource units are demersal and pelagic fish species. The introduction of nylon nets by the Brazil government in 1960 gave entry to non-fishing entrepreneurs who hired inexperienced fishers to fish. This new group of fishers disregarded the existing rules, resulting in conflict. In addition, the appropriative power of the...
09 Aug 2016

Water Equity and Tourism: A Case of Nainital District, Uttarakhand

Case
The current case is based on findings specific to ten villages in two blocks, Ramgarh and Dhari located in the Nainital district of Uttarakhand, India. This study is based on fieldwork that was carried over the course of a few years since 2014; originally with the intent to ascertain the impact of climate change on the livelihoods of mountain farmers. It was found that urbanization and the increase in tourism infrastructure in the district over the past decade has resulted in a conflict over...
03 Dec 2018

Water Scarcity, Flooding, and Public Infrastructure in Mexico City

Case
Mexico City, a megalopolis of 22 million, is located at the center of the Basin of Mexico. For over 600 years, catastrophic flooding and access to potable water have challenged the city’s residents, motivating extensive investments in hard infrastructure to supply the city with fresh water, or to protect the city from periodic flooding. The case study catalogues an action situation involving residents and their local, city, state, and federal governments that formally and informally govern land...
09 Aug 2016

Waterwheel Model

Model
This model describes the dynamics of a waterwheel. The wheel has 10 cups that are filled when as they pass over the top of the arc of the wheel (imagine a Ferris wheel where instead of seats there are buckets. Water is flowing down on the Ferris wheel filling the buckets). The weight of the water makes the wheel turn. However, in this model, the buckets leak. So if the flow of the water from the top is too slow, some interesting motion can occur. This waterwheel model is a perfect physical...
09 Aug 2016

World-Earth System Governance

Case
This case is a focal point for 'gobal' models - i.e. modes with no particular spatial resolution.  There are many of these - any economic growth model with some sort of ecological constraint.
13 Jan 2023