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Land Cover Assessment of Indigenous Communities in the BOSAWAS Region of Nicaragua [1].



Jonathan H. Smith [2]

INTRODUCTION

In some regions of the world, indigenous peoples The term indigenous peoples has no universal, standard or fixed definition, but can be used about any ethnic group who inhabit the geographic region with which they have the earliest historical connection.  still retain control over the lands and resources they and their ancestors have utilized for centuries. However, such control is becoming increasingly rare, as these lands are often coveted cov·et  
v. cov·et·ed, cov·et·ing, cov·ets

v.tr.
1. To feel blameworthy desire for (that which is another's). See Synonyms at envy.

2. To wish for longingly. See Synonyms at desire.
 by outsiders because of their rich biodiversity and valuable natural resources (Dasmann, 1991; Stevens, 1997). Conservationists are interested in establishing parks and reserves for conservation, timber interests want to harvest trees, and nonindigenous settlers seek to claim seemingly underutilized lands. In response to such pressures, the territories utilized by indigenous peoples have often been designated as national parks This is a list of national parks ordered by nation. Africa
See also:
  • Algeria
  • Botswana
  • Chad
  • Ethiopia
  • Gabon
  • Kenya
  • Madagascar
  • Morocco
  • Mozambique
  • Namibia
 or other protected areas. The new management paradigm for these conservation areas calls for the incorporation of the indigenous peoples into the management process (Stevens, 1997). A critical component of such management systems are land cover data that reveal the land covers present and the processes incurring land cover change. Land cover changes re veal the environmental conditions and human actions that have shaped the landscape, including ecological succession Ecological succession

A directional change in an ecological community. Populations of animals and plants are in a dynamic state. Through the continual turnover of individuals, a population may expand or decline depending on the success of its members in
, timber removal, and natural disturbances such as hurricanes.

This study utilizes remotely sensed images to conduct a land cover analysis of three indigenous communities in Nicaragua that are attempting to develop comprehensive land use management plans compatible with the goals of the government-created BOSAWAS Natural Resource Reserve (Fig. 1). Encompassing 7,300 sq kin, the goals of the Reserve are to conserve a portion of the largest remaining stand of tropical rain forest north of the Amazon Basin “Amazonian” redirects here. For other uses, see Amazonian (disambiguation).

The Amazon Basin is the part of South America drained by the Amazon River and its tributaries.
, while promoting the sustainable use Sustainable use is the use of resources at a rate which will meet the needs of the present without impairing the ability of future generations to meet their needs. The concept was notably put forth by the Brundtland Commission in 1987. See also
  • http://www.iucn.
 of its resources (Stocks, 1994). To facilitate the entry of the indigenous communities into the management process, the communities have been working with two nongovernmental organizations Transnational organizations of private citizens that maintain a consultative status with the Economic and Social Council of the United Nations. Nongovernmental organizations may be professional associations, foundations, multinational businesses, or simply groups with a common interest in  (NGO NGO
abbr.
nongovernmental organization

Noun 1. NGO - an organization that is not part of the local or state or federal government
nongovernmental organization
), The Nature Conservancy Nature Conservancy, nonprofit organization established in 1951 to preserve or aid in the preservation of natural environments. It protects wilderness areas in the United States and Canada and is affiliated with similar groups in Latin America and the Caribbean.  (TNC (hardware) TNC - A threaded version of a BNC. ) and the Alistar Foundation. These NGOs have provided technical and legal assistance to the communities as well as training to the indigenous forest rangers to monitor the communities' territories. The goal of this study is to provide land cover data to the communities so that they will be able to work with the Nica raguan Government on planning the sustainable use of the Reserve's resources.

Two of the three communities under study are made up of Mayangna (Sumu) peoples (Mayangna Sauni As and Mayangna Sauni Bas), while the other community is made up of Miskitu, Kipla Sait Tasbaika. The Mayangna inhabit the interior valleys of north-central Nicaragua, while the Miskitu are found along the Caribbean coast Caribbean Coast (Traditional Chinese: 映灣園) is a multiphase residential and commercial development in Tung Chung as part of the station development of Tung Chung MTR Station.  and the Coco River Coco River
 formerly Segovia River

River, Central America. Rising in southern Honduras, it flows 485 mi (780 km) to enter the Caribbean Sea at Cape Gracias a Dios.
 valley (Sollis, 1989). Approximate 1995 populations of the communities were 500 for Mayangna Sauni Bas and 3,400 for both Mayangna Sauni As and Kipla Sait Tasbaika (Stocks, 1998; Stocks et at., 1998). The three communities are similar in that settlements occur along rivers that provide transportation to agricultural lands, as well as hunting and gathering areas. All three practice subsistence slash-and-burn (swidden swid·den  
n.
An area cleared for temporary cultivation by cutting and burning the vegetation.



[Dialectal alteration of obsolete swithen, from Old Norse svidhna, to be burned.]
) agriculture, clearing plots of primary and secondary forest along the river valleys. Each clearing is used for two or three cropping cycles and then abandoned for new areas. Major crops include maize, rice, beans, bananas, and yucca yucca (yŭk`ə), any plant of the genus Yucca, stiff-leaved stemless or treelike succulents of the family Liliaceae (lily family), native chiefly to the tablelands of Mexico and the American Southwest but found also in the E United States . As the lands lie fallow fallow

a pale cream, light fawn, or pale yellow coat color in dogs.
, fertili ty regenerates allowing them to be reused in the future. Meat is provided through hunting and fishing, as well as raising chickens, pigs, and in a few circumstances, cattle. All three communities are relatively isolated, with no roads. However both Mayangna communities are located near mestizo mestizo (māstē`sō) [Span.,=mixture], person of mixed race; particularly, in Mexico and Central and South America, a person of European (Spanish or Portuguese) and indigenous descent.  mining towns that serve as markets for indigenous goods as well as points of embarkation for settlers seeking land.

METHODS

Information required to conduct a land cover analysis of the three indigenous communities includes their territorial claims, the current extent of land covers, and recent land cover changes. Such an analysis will allow the communities to work with Nicaragua's environmental ministry, the Ministerio del Ambiente y los Recursos Naturales (MARENA), on the Reserve's management plan. Land cover was identified using remotely sensed images, while existing maps provided community boundaries and the information required to register the images to a common coordinate system coordinate system

Arrangement of reference lines or curves used to identify the location of points in space. In two dimensions, the most common system is the Cartesian (after René Descartes) system.
. Overlays of the geographic data Geographic data is about much more than electronic pictures of maps.

The geographic data that describes our world allows for city planning, flood prediction and relief, emergency service routing, environmental assessments, wind pattern monitoring and many other applications.
 sets were conducted to identify the land covers within individual communities and the land cover changes that had occurred between 1986 and 1995.

A number of images from a variety of sensors were required to provide land cover data for the three communities, including a Landsat multispectral scanner The Multispectral Scanner is one of the Earth observing sensors introduced in the Landsat program. A Multispectral Scanner (MSS) was placed aboard each of the first five Landsat satellites.

NASA's web page on the Multispectral Scanner lists sensor specifics.
 (MSS) image to identify 1986 land cover, and a single Landsat thematic mapper (TM) image, along with three SPOT high resolution visible (HRV HRV Croatia (ISO Country code)
HRV Heart Rate Variability
HRV Human Rhinovirus
HRV Heat Recovery Ventilator
HRV High Resolution Visible
HRV Haute Resolution Visible
HRV Hypersonic Research Vehicle
HRV Hercules Recovery Vehicle
) panchromatic pan·chro·mat·ic  
adj.
Sensitive to all colors: panchromatic film.



pan·chroma·tism n.
 images to identify 1995 land cover. The large number of images were required because of the prevalence of cloudy conditions throughout the year in the region, which made many images unusable.

Existing maps provided ground control for image rectification, as well as information to be incorporated into the spatial database. Specifically, these maps included 1:50,000-scale topographic maps produced in 1987 by the Instituto Nicaraguense de Estudios Territoriales (INETER INETER Instituto Nicaraguense de Estudios Territoriales ) and 1:50,000-scale indigenous community maps produced by the Center for Environmental Anthropology (CEA CEA carcinoembryonic antigen.

CEA
abbr.
carcinoembryonic antigen


CEA (Carcinoembryonic antigen) 
) at Idaho State University Enrollment for fall semester 2006 was 12,676 students, including 8,848 undergraduates.[1] ISU enrolls a large number of older, non-traditional students who live and work off-campus. . The 1:50,000 scale topographic maps were used to obtain ground control points for the rectification of the satellite images, while the indigenous community maps were used to delineate the boundaries of their claims. These indigenous community maps had been hand drawn, using the topographic maps as a template.

Source data were also collected during two site inspections. These inspections were conducted to gather ground truth information on the communities, acquire maps, and meet with researchers working in the communities. The first inspection occurred in July/August 1995, and lasted approximately 4 weeks. To facilitate the gathering of ground truth information on existing land use and land cover conditions, hardcopy color prints of portions of the satellite images were taken to the study area. Fieldwork included an aerial survey of the area and visits to both Mayangna and Miskitu villages. Handheld photographs were acquired during the aerial survey to obtain ground truth information in inaccessible portions of the Reserve.

The second site visit was conducted during January/February 1996 (lasting for 3 weeks) and involved collecting information on land cover sample areas to be used in the image classification process. The timing of this visit was critical, because it occurred during the dry season, the same time of the year as when the images were acquired. Thus, the environmental conditions recorded during this visit were very similar to those occurring during image acquisition. Locations of the sample areas were determined in Universal Transverse Mercator (UTM (Unified Threat Management) Refers to a stand-alone appliance or a software package that combines a firewall, antivirus, spam and content filtering as well as intrusion detection. See firewall, antivirus, antispam and IDS. ), North American Datum The North American Datum is the official datum used for the primary geodetic network in North America. In the fields of cartography and land-use there are currently two North American Datums in use: the North American Datum of 1927 (NAD 27) and the North American Datum of 1983 (NAD  of 1927 (NAD NAD: see coenzyme.  27) ground coordinates using a Trimble Geoexplorer[TM] global positioning system Global Positioning System: see navigation satellite.
Global Positioning System (GPS)

Precise satellite-based navigation and location system originally developed for U.S. military use.
 (GPS) receiver. The NAD 27 was chosen to make the database compatible with existing map products of the area. At each GPS sample point, a labeled diagram was sketched of the surrounding landscape and ground photographs acquired.

A land cover classification scheme was then developed for the study based on the capabilities of the images utilized and information gathered during the field surveys. The three classes delineated were advanced forest, scrub/early secondary forest, and agriculture/pasture. A more detailed classification scheme would have been beneficial, but the inclusion of the MSS and SPOT images necessitated a more generalized system. The advanced forest class was used to include both primary and older secondary forests, since the two were spectrally indistinguishable on all of the images. In the tropics tropics, also called tropical zone or torrid zone, all the land and water of the earth situated between the Tropic of Cancer at lat. 23 1-2°N and the Tropic of Capricorn at lat. 23 1-2°S. , once an agricultural plot is abandoned, it quickly proceeds through the successional process, with only 15 years of regrowth Re`growth´   

n. 1. The act of regrowing; a second or new growth.
The regrowth of limbs which had been cut off.
- A. B. Buckley.
 required for a secondary forest to become spectrally inseparable, utilizing existing digital sensors, from mature forest (Moran, 1993). The creation of the aggregated scrub/early secondary forest and agriculture/pasture classes was necessitated by the limited number of spectral bands of both the MSS and panchromatic (black and white) SPOT sensors.

To facilitate the classification of the satellite images, ground truth information gathered from one-half of the GPS sample points were used to guide the classification process. These points were overlayed upon the 1995 TM and SPOT images to link ground information with image characteristics. Diagrams and photographs acquired at the GPS points were then compared with each of the images on-screen on·screen or on-screen  
adj. & adv.
1. As shown on a movie, television, or display screen.

2. Within public view; in public.
. This registration of GPS point locations to the images resulted in image characteristics such as color and relative texture (smooth versus rough) being linked with specific land cover types.

Once the GPS point registrations were complete, homogeneous sample training areas for each land cover class were identified on the 1995 TM image, and mean spectral reflectance curves were created. The resulting data were used to guide the classification of the 1995 TM image and to identify land cover sample areas on the 1986 images. Areas of specific land cover classes on the 1986 MSS images were identified by analyzing those areas where land cover changes were unlikely to occur, as well as by developing reflectance curves that exhibited similar values.

Thematic classification was conducted using both supervised classification and visual interpretation. Supervised classification involves an analyst using ancillary data sources to identify representative portions of an image for each desired feature class, with the spectral signatures derived from these training areas then used to classify the entire image using a clustering algorithm. Visual interpretation, on the other hand, involves an analyst delineating the various land cover patches on a photograph with a pen, or on a computer screen using a cursor. A patch was defined as a contiguous swath of a specific land cover. Visual interpretation was used on the MSS images since supervised classification was made impossible by severe striping Interleaving or multiplexing data to increase speed. See disk striping.

striping - data striping
 in Bands 1 and 2 of the images.

Land cover for the second date of the analysis was derived from the three SPOT images and the 1995 TM image. The SPOT panchromatic images were classified through visual interpretation, while supervised classification was utilized to classify the TM image. After the TM image was classified, it was converted to a vector land cover dataset by digitizing the boundaries of the land covers on the raster classification image that resulted from the classification process. Overall classification accuracy for the three land cover classes was 92% (Smith, 1998).

Once the classification and vectorization was complete, all of the land cover files were converted to ARC/INFO format for editing and analysis. Two land cover datasets were created, one for each year, by combining the results of the image classifications. These datasets were then clipped with the boundaries of the three communities to isolate the land cover within each. This created a total of six land cover datasets, two for each community, one for 1986 and the other for 1995. Data sets from the individual communities were then overlayed to identify the land cover changes that occurred between 1986 and 1995.

RESULTS AND CONCLUSIONS

The results of the 1986 classification reveal that advanced forest dominated all three communities, with only small amounts of scrub/early secondary forest and agriculture/pasture present (Table I). Agriculture/pasture was present in relatively small amounts, while the amount of fallow lands, represented by scrub/early secondary forest patches, was considerably greater. Between 1986 and 1995 the total area and the number of patches of agriculture/pasture increased dramatically in all three communities, with the amount of scrub/early secondary forest increasing in Kipla Sait Tasbaika and Mayangna Sauni As. In 1995, the scrub/early secondary forest patches represent those areas that were utilized by the inhabitants
:This article is about the video game. For Inhabitants of housing, see Residency
Inhabitants is an independently developed commercial puzzle game created by S+F Software. Details
The game is based loosely on the concepts from SameGame.
 when they first returned to the region in 1991 and subsequently abandoned for more fertile plots. Advanced forest continued to dominate all three communities, even as its total amount decreased in both Kipla Sait Tasbaika and Mayangna Sauni As. Analysis of the locations of the agriculture/pasture and scrub/early secondary forest patches reveal that some originate outside the boundaries of the two Mayangna communities. This would indicate that they have been caused by mestizo settlers who have infringed on the communities' territories.

By overlaying the two datasets for each community, land cover change processes were identified. Three processes were identified as occurring between 1986 and 1995: deforestation deforestation

Process of clearing forests. Rates of deforestation are particularly high in the tropics, where the poor quality of the soil has led to the practice of routine clear-cutting to make new soil available for agricultural use.
, reconversion Reconversion

A method used by individuals to minimize the tax burden of converting by recharacterizing Roth IRA-converted amounts back to a Traditional IRA and then converting these assets back to a Roth IRA again.
, and reforestation Reforestation

The reestablishment of forest cover either naturally or artificially. Given enough time, natural regeneration will usually occur in areas where temperatures and rainfall are adequate and when grazing and wildfires are not too frequent.
 (Table II). Deforestation involves the removal of tree cover from an area and is delineated by those areas that were advanced forest in 1986 and agriculture/pasture, or scrub/early secondary forest in 1995. Reconversion is the reutilization of fallow lands for agriculture. Areas undergoing reconversion were scrub/early secondary forest in 1986 and agriculture in 1995. Reforestation is the final change process and involves the continuation of ecological succession, that is, a maturing of the natural vegetation. These areas were agriculture or scrub/early secondary forest in 1986, and advanced forest in 1995. Deforestation impacted the greatest area, especially in Mayangna Sauni As, with reforestation affecting the second largest area. Over one-half of the reforestation occurred in a single community, Ma yangna Sauni Bas. Reconversion affected relatively small amounts of area in all three communities.

Results of the analysis reveal that the land covers present reflect processes that were affecting the country as a whole. The small amount of agriculture/pasture present in 1986 is the result of land abandonment during Nicaragua's civil war. Indigenous populations were either forcibly moved away from the border region, or fled to Honduras, thus abandoning their lands (Stocks, 1998). At the conclusion of the war in 1990, the indigenous populations returned and reestablished their traditional agricultural practices. The large amounts of land affected by the deforestation and reconversion processes reflect this. In addition to the indigenous peoples, mestizo settlers seeking land also moved into the area, as shown by the clearings present along the southern borders of the two Mayangna communities. Indigenous forest rangers in Mayangna Sauni Bas patrolling this region identified 15 families inhabiting territory the community claims (Stocks et al., 1998).

The land cover analysis of the three communities was conducted to enable the communities to be active players in the management of the BOSAWAS Reserve. Analysis of the locations of current agricultural lands, the amount of change that has occurred, along with a census being conducted by TNC and the Alistar Foundation, will enable the communities to develop comprehensive land use management plans that meet their needs and the goals of the Reserve. The land cover data will form a baseline for the continual monitoring of land cover, while allowing the indigenous forest rangers to work with the national government in repressing re·press  
v. re·pressed, re·press·ing, re·press·es

v.tr.
1. To hold back by an act of volition: couldn't repress a smirk.

2.
 mestizo settler invasions.

(1.) The research described in this article was developed by the author, an employee of the U.S. Environmental Protection Agency Environmental Protection Agency (EPA), independent agency of the U.S. government, with headquarters in Washington, D.C. It was established in 1970 to reduce and control air and water pollution, noise pollution, and radiation and to ensure the safe handling and  (EPA EPA eicosapentaenoic acid.

EPA
abbr.
eicosapentaenoic acid


EPA,
n.pr See acid, eicosapentaenoic.

EPA,
n.
), Office of Research and Development (ORD), prior to this employment. It was conducted independent of EPA employment and has not been subjected to the Agency's peer and administrative review. Therefore, the conclusions and opinions expressed are solely those of the author and are not necessarily the views of the EPA, or ORD.

(2.) Landscape Characterization Branch (MD-56), U.S. Environmental Protection Agency, Research Triangle Park Research Triangle Park, research, business, medical, and educational complex situated in central North Carolina. It has an area of 6,900 acres (2,795 hectares) and is 8 × 2 mi (13 × 3 km) in size. Named for the triangle formed by Duke Univ. , North Carolina North Carolina, state in the SE United States. It is bordered by the Atlantic Ocean (E), South Carolina and Georgia (S), Tennessee (W), and Virginia (N). Facts and Figures


Area, 52,586 sq mi (136,198 sq km). Pop.
 27711; e-mail: smith.jonathanh@epa.gov.

REFERENCES

Dasmann, R. (1991). The importance of cultural and biological diversity. In Oldfield, M. L., and Alcorn, J. B. (eds.), Biodiversity: Culture, Conservation and Ecodevelopment, Westview Press, Boulder, CO, pp. 7-15.

Moran, E. F. (1993). Deforestation and land use in the Brazilian Amazon. Human Ecology, 21(1): 1-21.

Smith J. H. (1998). Land Cover Changes in the BOSAWAS Region of Nicaragua: 1986-1995/96, PhD Dissertation, University of Georgia Organization
The President of the University of Georgia (as of 2007, Michael F. Adams) is the head administrator and is appointed and overseen by the Georgia Board of Regents.
, Athens, GA, 170 pp.

Sollis, P. (1998). The Atlantic coast of Nicaragua: Development and autonomy. Journal of Latin American Studies The Journal of Latin American Studies (JLAS) is an interdisciplinary journal focusing on Latin America. Since 1969, it has been published quarterly, in February, May, August and November, by Cambridge University Press.  21: 481-520.

Stevens, S. (1997). The legacy of Yellowstone. In Stevens, S. (ed.), Conservation Through Cultural Survival, Island Press, Washington, DC, pp. 13-32.

Stocks, A. (1994). Case Study: The BOSAWAS Natural Resource Reserve and the Mayangna (Sumu) Ethnic Group of Nicaragua, Center for Environmental Anthropology, Idaho State University, Pocatello, ID, 29 pp.

Stocks, A. (1998). Indigenous and Mestizo Settlements in Nicaragua's BOSAWAS Reserve. Paper presented at the 1998 Annual Meeting of the Latin American Studies Association The Latin American Studies Association (LASA) is the largest association for scholars of Latin America. Its Congress is held every eighteen months, with several thousand attending. LASA Presidents
  • Charles R. Hale (University of Texas, Austin), 2006-
  • Sonia E.
, Chicago, IL.

Stocks, A., Beauvais, J., and Jarquin, L. (1998). Indigenous Ecological Activism in Nicaragua. Paper presented at the 1998 Annual Meeting of the Rocky Mountain Council on Latin American Studies Latin American Studies (sometimes abbreviated LAS) is an academic discipline which studies the history and experience of peoples and cultures in the Americas. Definition , Missoula, MT.
Table 1.
Land Cover Amounts
                                  1986
                                Number of  Total area
             Class               Patches    (sq km)
Kipla Sait Tasbaika
  Agriculture/pasture              13          2.9
  Scrub/early secondary forest     39          9.2
  Advanced forest                   2       1127.9
Mayangna Sauni As
  Agriculture/pasture               2          0.3
  Scrub/early secondary forest     31         29.3
  Advanced forest                   8       1606.0
Mayangna Sauni Bas
  Agriculture/pasture               1          0.2
  Scrub/early secondary forest     26         19.9
  Advanced forest                   2        385.5
                                                      1995
                                Average patch size  Number of
             Class                   (sq km)         patches
Kipla Sait Tasbaika
  Agriculture/pasture                   0.2             51
  Scrub/early secondary forest          0.2            102
  Advanced forest                     563.9             14
Mayangna Sauni As
  Agriculture/pasture                   0.1             73
  Scrub/early secondary forest          0.9             93
  Advanced forest                     200.8             11
Mayangna Sauni Bas
  Agriculture/pasture                   0.2             57
  Scrub/early secondary forest          0.8             23
  Advanced forest                     192.8              1
                                Total area  Average patch size
             Class               (sq km)         (sq km)
Kipla Sait Tasbaika
  Agriculture/pasture               6.4             0.1
  Scrub/early secondary forest     15.3             0.2
  Advanced forest                1118.1            79.9
Mayangna Sauni As
  Agriculture/pasture              17.0             0.2
  Scrub/early secondary forest     93.9             1.0
  Advanced forest                1524.4           138.6
Mayangna Sauni Bas
  Agriculture/pasture               7.5             0.1
  Scrub/early secondary forest      5.6             0.2
  Advanced forest                 392.6           392.6
Table II.
Land Cover Changes (sq km)
                                       Kipla Sait  Mayangna  Mayangna
Change process                          Tasbaika   Sauni As  Sauni Bas
Deforestation                              15.8       85.9       5.1
Reconversion                                0.5        8.4       4.0
Reconversion                                7.6        4.5      12.2
Remained agriculture/pasture                0.5        0.2       0.2
Remained scrub/early secondary forest       3.0       16.4       3.8
Remained advanced forest                 1111.5     1520.0     380.3
Change process                         Total
Deforestation                           106.8
Reconversion                             12.9
Reconversion                             24.3
Remained agriculture/pasture              0.9
Remained scrub/early secondary forest    23.2
Remained advanced forest               3011.9
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No portion of this article can be reproduced without the express written permission from the copyright holder.
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Author:Smith, Jonathan H.
Publication:Human Ecology
Article Type:Brief Article
Geographic Code:2NICA
Date:Sep 1, 2001
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