Table I. Population and Rates of Growth, 1974-1996, for
Thirteen Coastal Communities of the Northern Río Plátano
Biosphere Reserve
| Community |
Population |
Rates of Growth (r, % per annum)* |
Change Index |
|
1974 |
1988 |
1996 |
1974-88 |
1988-96 |
1974-96 |
1974-96 |
| Piñales |
0 |
50 |
112 |
nd |
10.08 |
nd |
nd |
| Betania |
0 |
127 |
166 |
nd |
3.35 |
nd |
nd |
| Ibans |
500 |
627 |
1126 |
1.62 |
7.32 |
3.69 |
2.25 |
| Coyoles |
35 |
132 |
225 |
9.48 |
6.67 |
8.46 |
6.43 |
| Cocobila |
0 |
646 |
962 |
3.72 |
4.98 |
4.17 |
2.51 |
| Raistá |
46 |
64 |
120 |
2.36 |
7.86 |
4.36 |
2.61 |
| Belen |
135 |
276 |
429 |
5.11 |
5.51 |
5.26 |
3.18 |
| Payabila |
18 |
57 |
116 |
8.23 |
8.88 |
8.47 |
6.44 |
| N.Jerusalén |
0 |
184 |
557 |
nd |
13.85 |
nd |
nd |
| Kuri |
63 |
117 |
145 |
4.42 |
2.68 |
3.79 |
2.30 |
| Utla Almuk |
48 |
220 |
251 |
10.87 |
1.65 |
7.52 |
5.23 |
| Tasba Pauni |
20 |
165 |
176 |
15.07 |
0.81 |
9.89 |
8.80 |
| Río Plátano |
201 |
540 |
467 |
7.06 |
- 1.82 |
3.83 |
2.32 |
|
|
|
|
|
|
|
|
| Total |
1450 |
3205 |
4852 |
5.67 |
5.18 |
5.49 |
3.35 |
*Note: Rate of growth estimated as r = 1/t ln(Pt / P0)k
where t = time (years) between censuses, Pt = population at
time t, P0 = population at initial time zero, and k=100 (to
convert mathematical r into per cent rate per annum). Cells denoted "nd"
indicate no data for time points.
Sources: Data for 1974 and 1988 were obtained from archives of the Dirección
General de Estadística y Censos, Tegucigalpa.
Data for 1996 from files of local malaria control office: División
de Enfermedades Transmitidas por Vectores, Centro de Salud, Cocobila.
Table II. Population Change
for Three Communities Planting in Banaka, 1974-1996
| Community |
Population |
Rates of Growth
(r, % per annum) |
Change Index |
|
1974 |
1988 |
1996 |
1974-88 |
1988-96 |
1974-96 |
1974-96 |
| Ibans |
500 |
627 |
1126 |
1.62 |
7.32 |
3.69 |
2.25 |
| Cocobila |
384 |
646 |
962 |
3.72 |
4.98 |
4.17 |
2.51 |
| Belen |
135 |
276 |
429 |
5.11 |
5.51 |
5.26 |
3.18 |
|
|
|
|
|
|
|
|
| Total |
1019 |
1549 |
2517 |
2.99 |
6.07 |
4.11 |
2.47 |
Source: Table 1.
Table III. Backwards Projection
for Estimating Population Size in 1961 for Three Communities Planting in
Banaka
Year
(t) |
Interval years
(n) |
Growth rate (r,
% per annum) |
Population at time t
(Pt) * |
Sources for Population Data
and Estimate of r |
Population Change
Index
(Base 1961) |
| 1961 |
13 |
4.37 |
578 |
1961 and 1974 national censuses
for Brus Laguna municipality |
1.00 |
| 1974 |
14 |
2.99 |
1019 |
Table 2 |
1.76 |
| 1988 |
8 |
6.07 |
1549 |
Table 2 |
2.68 |
| 1996 |
--- |
--- |
2517 |
Table 2 |
4.36 |
*Note: Backward projection formula is P(t-n)
= Pt e-(rn) where P(t-n) = population
at time t minus n years, Pt = population at time t, e=natural growth constant,
r=rate of growth per annum/100.
Table IV. Change in Area
of Forest Disturbance by Agriculture in Banaka, 1960-1995
| Year |
Hectares |
Interval years ( t) |
Growth Rate of Agricultural
Area (r, % per annum)* |
Hectares Index
(Base 1960) |
Persons/Ha |
Persons/Ha Index
(Base 1960) |
| 1960 |
282.1 |
29 |
2.06 |
1.00 |
2.05 |
1.00 |
| 1989 |
512.19 |
6 |
5.38 |
1.82 |
3.02 |
1.48 |
| 1995 |
707.28 |
--- |
--- |
2.51 |
3.56 |
1.74 |
*Notes: Rate of growth estimated as r = 1/t
ln(Ht / H0)k where t = time (years) between
interpreted imagery data, Ht = hectares at time t, H0
= hectares at initial time zero, and k=100 (to convert mathematical r into
per cent rate per annum). Index is ratio to base of 1960.
Sources: Hectares from GIS measurement
of agricultural areas (see Figure 4). Persons per hectare calculated from
hectares displayed in this table divided by population in Table 2.
Table V. Summary of Indices
for Change in Population and Forest Disturbance Area, 1960-1996
| Year |
Population Index |
Disturbed Ha
Index |
Persons/Ha Index |
| 1960 |
|
1.00 |
1.00 |
| 1961 |
1.00 |
|
|
| 1974 |
1.76 |
|
|
| 1988 |
2.68 |
|
1.48 |
| 1989 |
|
1.82 |
|
| 1995 |
|
2.51 |
|
| 1996 |
4.36 |
|
1.74 |
Sources: Tables 3 and 4. Note: Index is ratio
to base of 1960-61.
Table VI. Agricultural Land
Areas Claimed by Residents of Belen and Cocobila
(Brackets [] indicate sum of lands for
each watershed)
| WATERSHED and
River/Stream |
Belen (1992)
/1 |
Cocobila (1986)
/2 |
Hectares |
% of Agricultural Holdings |
Hectares |
% of Agricultural Holdings |
| LAGUNA DE IBANS |
[267.5392] |
[59.8%] |
[185.1740] |
[34.7%] |
| Banaka |
218.4044 |
|
47.6520 |
|
| Belen |
5.7674 |
|
---- |
|
| Crique Paru |
18.9146 |
|
101.9920 |
|
| Crique Knatapara |
16.7722 |
|
25.0800 |
|
| Cerro Baltimore |
6.6356 |
|
10.4500 |
|
| Hilbila / Usus Ilka |
1.0450 |
|
---- |
|
| RÍO TINTO NEGRO |
[142.9560] |
[31.9%] |
[348.612] |
[65.3%] |
| Cerro Remolino |
---- |
|
5.0160 |
|
| Limonal /3 |
60.6623 |
|
56.0120 |
|
| Cerro Bum |
7.8375 |
|
114.5320 |
|
| Sugaló |
21.1612 |
|
76.9120 |
|
| Río Chiquerito |
8.7780 |
|
95.3040 |
|
| Río Tinto (unspecified) |
41.8000 |
|
---- |
|
| Río Paulaya |
2.7170 |
|
0.8360 |
|
| RÍO PLATANO |
[17.0335] |
[3.8%] |
---- |
[0%] |
| OTHER /4 |
19.9072 |
[4.4%] |
---- |
[0%] |
TOTAL LANDS /5
Hectares |
447.4359 |
100% |
533.7860 |
100% |
| Population |
432 |
|
669 |
|
| Persons per hectare |
0.96 |
|
1.25 |
|
Notes:
1. Source: Fieldwork by Dodds in 1991-92.
Areas reported in the table above were originally reported in manzanas
and are uncorrected for reported estimation bias in order to maintain comparability
with Pfeifer's interview data for Cocobila (see Dodds 1994:264-269).
2. Source: Pfeifer (1986).
3. For Belen residents, "Limonal" includes
various place names on the Rio Tinto Negro including the village of Limonal
and the sites of Klukum, Kungkung, Lasawika, Uhum, and Yamus.
4. For Belen residents, "Other" includes
lands at Barra Patuca, Laguna de Caratasca, Ahuas, and the Rio Twas.
5. For both Belen and Cocobila, total areas
of agricultural lands include fields, tree crops, and pastures. One manazana
= 100 yards by 100 yards = 0.8360 hectares.
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