Displaying 46 - 60 of 117 records found.
Title | Type |
|---|---|
Living in a network of scaling cities and finite resources | Model |
| A modified Lotka-Volterra system in which multiple consumers and resource systems are connected by both consumer-consumer and consumer-resource links. Consumers represent cities, and thus exhibit nonlinear scaling behaviors as population increases w.r.t. harvest rate and harvest conversion efficiency. Populations can also migrate between cities along a welfare-dependent gradient.Analysis of the model for a simple dyadic network reveals that the basic Lotka-Volterra formulation can lead to... | 30 Sep 2016 |
Loma Alta community forest, western Equador | Case |
| This paper provides an explanation for the lack of institutions regulating the Loma Alta Forest. The community has not yet created any rules regarding forest use. The members of the community with the biggest economic stake in the forest have no reason to limit their exploitative practices, and thus little demand exists for forest regulation at the local level. The Loma Alta Forest is in danger of being more severely degraded in the near future because of the lack of forestry institutions.... | 09 Aug 2016 |
Lotka-Volterra Competition | Model |
| Symmetric competition model | 09 Aug 2016 |
Love River Restoration, Taiwan | Case |
| Love River Restoration case is part of the comparative urban river analysis developed between 2019 to 2020 by Herlin Chien at United Nations University, Institute for the Advanced Study of Sustainability in Japan. The common pool resource system is the Love River (12 km) located in a metropolitan city of Kaohsiung with 2.7 million inhabitants. This case is identified by the Executive Yuan - central government in Taiwan as one of eleven rivers with more than 50% of mediumly polluted section in... | 21 Jul 2020 |
Lurin Sayoc Irrigation, Quinua District, Peru | Case |
| Lurin Sayoc is one of the two barrios of Quinua district of Ayacucho Province in the Peruvian highlands. The resource appropriated related to the social dilemma is water for irrigation distributed through a canal, diverted by stream. The original case was reported in 1976 and 1977 and catalogues an action situation involving 5,348 people. The author reported many fights around water use.This case study is part of the original Common-Pool Resource (CPR) database. A summary of the original CPR... | 09 Aug 2016 |
Magar Kulo, Bhote Namlang Village Panchayat, Sindhupalchok District, Nepal | Case |
| This case is part of the original Nepal Irrigation Institutions and Systems (NIIS) database developed in the 1980's by a team of researchers under the direction of Dr. Elinor Ostrom at Indiana University. In addition, this case is also part of a longitudinal study that has repeatedly investigated 19 farmer-managed irrigation systems (FMIS) in the Indrawati River Basin that participated in an innovative intervention designed to improve irrigation performance not only by improving physical... | 09 Aug 2016 |
Majha Ko Kulo (b), Thamalangtar Dhap Village Panchayat, Sindhupalchok District, Nepal | Case |
| This case is part of the original Nepal Irrigation Institutions and Systems (NIIS) database developed in the 1980's by a team of researchers under the direction of Dr. Elinor Ostrom at Indiana University. In addition, this case is also part of a longitudinal study that has repeatedly investigated 19 farmer-managed irrigation systems (FMIS) in the Indrawati River Basin that participated in an innovative intervention designed to improve irrigation performance not only by improving physical... | 09 Aug 2016 |
Majha Ko Kulo (d), Baguwa, Sikharpur Village Panchayat, Sindhupalchok District, Nepal | Case |
| This case is part of the original Nepal Irrigation Institutions and Systems (NIIS) database developed in the 1980's by a team of researchers under the direction of Dr. Elinor Ostrom at Indiana University. In addition, this case is also part of a longitudinal study that has repeatedly investigated 19 farmer-managed irrigation systems (FMIS) in the Indrawati River Basin that participated in an innovative intervention designed to improve irrigation performance not only by improving physical... | 09 Aug 2016 |
Malthusian Population Growth and Crisis in Pre-Industrial Agrarian Societies | Model |
| Most models of Malthusian population dynamics specify logistic growth to a carrying capacity, but the historical record of agrarian societies strongly suggests that repeated cycles of overshoot and collapse (so-called "Malthusian crises") are endogenous to population dynamics (see Nefedov, 2013 for details and citations). In this model, Nefedov (2013) explicitly models harvest surplus production as the carrying capacity of an agricultural population. When population pressure drives the... | 01 Oct 2016 |
Maritime Extractive Reserve (MER) and Traditional Beach Seining in Arraial do Cabo, Brazil | Case |
| The Arraial do Cabo Marine Extractive Reserve (MER) and fishing community is located on a cape that extends approximately 40 km into the ocean about 164 km east of Rio de Janeiro, Brazil. The MER encompasses a total marine area of approximately 57 ha which is utilized by seiners/fishermen from four different beaches. The case study involves a time period which predates the 1960s and ends approximately in the early 2000s and draws on informal and semi-structured interviews with... | 09 Aug 2016 |
New Kingdom Egyptian Agriculture | Case |
| Situated in the Nile Valley from Aswan to the Mediterranean, New Kingdom Egypt (c.1550-1050 B.C.) had an agrarian economy - almost entirely dependent on agriculture for subsistence. Because the climate was too dry for rain-fed farming, all agriculture was restricted to the narrow Nile Valley floodplain. However, due to spatio-temporal fluctuations in Nile flood levels, the amount of water (and thus arable land) in New Kingdom Egypt could also fluctuate greatly. In order to mitigate the risks... | 09 Aug 2016 |
Newfoundland Inshore Cod Trap Fisheries, Canada | Case |
| The inshore cod trap fisheries discussed in this case are primarily located along the eastern and north shores of Newfoundland, Canada, encompassing an unknown geographical area. The case study discusses the development of community-based institutions over time and then compares this with larger scale policy development for offshore fishing and economic development which lead to the demise of the community-based inshore fishery institutions after 1960. This case is detailed in... | 09 Aug 2016 |
NGO-facilitated community irrigation system in Kasungu district, Malawi | Case |
| The exact location of the Malawi irrigation system is undisclosed due to anonymity concerns. However, it is generally located in the administrative district of Kasungu in central Malawi and encompasses an unknown geographical area. The case study involves a snapshot in time from approximately 2001/2002 to 2007 and catalogues an action situation involving seven villages organized in an unknown number of households. The villagers initially farmed their fields independently until... | 09 Aug 2016 |
Nyamaropa Communal Area, Nyanga District, Zimbabwe | Case |
| The Nyamaropa communal area encompasses a total of five villages located in the Nyanga District in Zimbabwe. Beyond individual homestead plots and fields, the communities have access rights to an unspecified acreage of grazing/woodland commons that consist of miombo woodlands on mountain and hill slopes and Terminalia-Combretum vegetation in the lowlands. The time period examined involves a snapshot in time in approximately the late 1990s and is based on the author’s personal... | 09 Aug 2016 |
Open Access Publishing | Case |
| Open access publishing is located on the world wide web, accessible anywhere where there is both internet access and a capable computer. Open access publishing is directly related to the digital knowledge commons, which started with the advent of the Internet around the 1950s and spans into present day and catalogues an action situation of over 3 billion people who have active access to the internet. The resource unit is peer-reviewed scholarly information or “high quality” information. The... | 09 Aug 2016 |