Caracterización de la comunidad de aves terrestres en el bosque semideciduo de la Sierra del Chorrillo, Camagüey
Fecha
2018-06
Autores
Guerra Aguilar, Fidel Alejandro
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Editor
Universidad Central "Marta Abreu" de Las Villas.Facultad de Ciencias Agropecuarias.Departamento de Biología
Resumen
El estudio de las relaciones de las aves con la vegetación permite predecir las afectaciones
de perturbaciones inducidas por el hombre o eventos catastróficos, así como de los cambios
climáticos. Dentro de las áreas más importantes por su ornitocenosis en Cuba está la Sierra
del Chorrillo, Najasa. Con el objetivo de abundar en el conocimiento teórico de la relación
entre la estructura de la vegetación y la comunidad de aves del bosque semideciduo en la
Sierra del Chorrillo, se llevó a cabo el presente estudio. Se realizaron muestreos a la
comunidad de aves mediante 20 puntos de conteo y se midieron las variables de estructura
de la vegetación en 20 parcelas de vegetación durante los períodos de residencia invernal
y migración primaveral entre el 2016 y 2018. La comunidad de aves estuvo compuesta en
su mayoría por especies residentes permanentes, que también fueron las más abundantes.
La ornitocenosis tuvo los mayores valores de riqueza de especies y de abundancia en
migración primaveral, esto puede responder a que en esta etapa del año hay mayores
precipitaciones, además, coincide con la época reproductiva de las especies residentes
permanentes. La mayoría de los gremios tróficos alcanzaron sus mayores valores de
riqueza de especies y de abundancia en los muestreos de migración primaveral, siendo el
de los insectívoros el predominante en ambos períodos. Las variables profundidad de la
hojarasca y la cantidad de árboles en las categorías diamétricas menores fueron
determinantes en la estructura y composición de la comunidad de aves.
Palabras clave: bosque semideciduo, comunidades de aves, estructura de la vegetación,
Najasa, Sierra del Chorrillo
The study of the relationships of birds with vegetation allows predicting the effects of humaninduced disturbances or catastrophic events, as well as climate changes. Within the most important areas by its ornithoscenosis in Cuba is Sierra del Chorrillo, Najasa. The present study was carried out with the main objective of abounding in the theoretical knowledge of the relationship between the structure of the vegetation and the bird community of the semideciduous forest in Sierra del Chorrillo. In the bird community, there were made some samples through 20 counting points of birds and the variables of the vegetation structure were measured in 20 vegetation plots during the periods of winter residence and spring migration between 2016 and 2018. The bird community was majority composed by permanent resident species, which were also the most abundant. The ornithocenosis had the highest values of species richness and an abundance in spring migration, this fact may be related to the stage of the year because of its greater rainfall, in addition, it coincides with the reproductive season of the permanent resident species. Most of the trophic guilds reached their highest values of species richness and an abundance in spring migration samples, with insectivores predominating in both periods. The variables depth of litter and the number of trees in the smaller diameter categories were determining factors in the structure and composition of the bird community. Key words: semideciduous forest, bird community, vegetation structure, Najasa, Sierra del Chorrillo
The study of the relationships of birds with vegetation allows predicting the effects of humaninduced disturbances or catastrophic events, as well as climate changes. Within the most important areas by its ornithoscenosis in Cuba is Sierra del Chorrillo, Najasa. The present study was carried out with the main objective of abounding in the theoretical knowledge of the relationship between the structure of the vegetation and the bird community of the semideciduous forest in Sierra del Chorrillo. In the bird community, there were made some samples through 20 counting points of birds and the variables of the vegetation structure were measured in 20 vegetation plots during the periods of winter residence and spring migration between 2016 and 2018. The bird community was majority composed by permanent resident species, which were also the most abundant. The ornithocenosis had the highest values of species richness and an abundance in spring migration, this fact may be related to the stage of the year because of its greater rainfall, in addition, it coincides with the reproductive season of the permanent resident species. Most of the trophic guilds reached their highest values of species richness and an abundance in spring migration samples, with insectivores predominating in both periods. The variables depth of litter and the number of trees in the smaller diameter categories were determining factors in the structure and composition of the bird community. Key words: semideciduous forest, bird community, vegetation structure, Najasa, Sierra del Chorrillo
Descripción
Palabras clave
Bosque Semideciduo, Aves, Semideciduous Forest, Bird Community,