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    Description

    Given the importance of biological corridors, it is necessary to evaluate their fauna especially those species are bioindicators of habitat quality, to determine patterns and extent of community diversity and how such factors reflect the level of conservation within and among green corridors in general. We investigated how selected landscape features within the Paso del Istmo, located in the Department of Rivas, Nicaragua, are influencing avian diversity and how key groups are providing clues to habitat quality. We recorded 8703 detections of 168 avian species using fixed-radius point counts (Distance Sampling) in four habitats among four farms. We found significant differences among habitats. Avian families sensitive to deforestation such as Trogloditidae y Thamnophilidae demonstrated a significant correlation with community richness (r2 = 0.42; r2 = 0.33, respectively; p < 0.0001 for both). Population dynamics of common species such as Long-tailed Manakin (Chiroxiphia linearis) and Dusky Antbird (Cercomacra tyrannina) revealed a current and important level of conservation in these habitats. Whit this study we recommend the preservation and management of mature forest remnants with ample understory, younger wooded tracts and brushy areas under regeneration to preserve and promote biodiversity among similar agroscapes within the Paso del Istmo and elsewhere.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Torrez, M.; Arendt, W.J.; Sotelo, M. 2013. Composicion de aves del Pacifico Sur de Nicaragua enfatizando las especies indicadoras dependientes de bosque [Community composition of Nicaragua's Pacific Slope forest birds, emphasizing forest quality-dependent species]. Mesoamericana. 17(2): 39-48.

    Keywords

    forest birds, bioindicator, regeneration, Paso del Istmo, southeast of Nicaragua

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