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Research Article

Within-colony nest distribution of a waterbird mixed colony in a small alluvial forest at El Salvador

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Pages 76-88 | Received 09 Nov 2020, Accepted 05 Feb 2022, Published online: 20 Feb 2022

Figures & data

Figure 1. Map of the San Diego and San Felipe Las Barras National Park showing the La Barra forest location.

Figure 1. Map of the San Diego and San Felipe Las Barras National Park showing the La Barra forest location.

Table 1. Maximum nest numbers of the waterbird colony in La Barra forest during the reproductive season of 2015 in San Diego and San Felipe Las Barras National Park

Figure 2. Evolution of nests numbers of the breeding mixed-species colony of La Barra forest during the 2015 season.

Figure 2. Evolution of nests numbers of the breeding mixed-species colony of La Barra forest during the 2015 season.

Figure 3. Height variation of the associated vegetation with the breeding mixed-species colony of La Barra forest during the 2015 season.

Figure 3. Height variation of the associated vegetation with the breeding mixed-species colony of La Barra forest during the 2015 season.

Figure 4. Total area (MCP = Minimum Convex Polygon), spatial distribution and nest densities per tree/shrub of La Barra’s waterbird colony. Heat map of nest densities (on the right to the bottom) represent highly dense areas in red while less dense areas in green.

Figure 4. Total area (MCP = Minimum Convex Polygon), spatial distribution and nest densities per tree/shrub of La Barra’s waterbird colony. Heat map of nest densities (on the right to the bottom) represent highly dense areas in red while less dense areas in green.

Table 2. Basic descriptive statistics of the plant species used by the nesting colony during the reproductive season of 2015 in La Barra forest, San Diego and San Felipe Las Barras National Park

Table 3. Vertical distribution of nesting waterbirds in La Barra forest

Table 4. Variables related to the within-colony nesting selection site in La Barra forest during the reproductive season of 2015