Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements
Many of Mexico's mature tropical forests are immersed in a complex landscape with agricultural fields, second-growth vegetation, and forest fragments; assemblages of frugivorous birds vary in these different landscape elements. We studied assemblages of birds feeding on fruits of three tree species in continuous forest, vegetation corridors, isolated forest fragments, and secondary vegetation. Through direct observation of focal trees and documentation of frugivorous feeding activities, we use effective species numbers and Non-Metric Multidimensional Scaling to describe the variation of habitat use patterns between assemblages. We recorded 1162 individuals of 57 bird species feeding on ripe fruits of Nectandra salicifolia, Dendropanax arboreus, and Bursera simaruba. Thirty-two species fed on isolated fragments and corridors of vegetation; our analysis grouped these two landscape elements by their species composition, representing 64.6% of all recorded individuals. The composition of the assemblages was influenced by the availability of fruits; Bursera simaruba exhibited a prolonged fruiting period and attracted a wider range of consumer species. Although the number of species varied slightly between different elements of the landscape, the importance of corridors and isolated forest fragments was key to the connectivity between bird and tree populations. At the geographic scale of this study, the transformation of the area does not reduce the diversity of frugivorous bird assemblages, as a result of the connectivity between the different elements of the landscape.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
2023
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Figueroa-Esquivel, Elsa M. Hernández-Almeida, Óscar Ubisha Vega-Frutis, Rocío Luja Molina, Víctor H. Villaseñor Gómez, José Fernando |
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Figueroa-Esquivel, Elsa M. Hernández-Almeida, Óscar Ubisha Vega-Frutis, Rocío Luja Molina, Víctor H. Villaseñor Gómez, José Fernando Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
| author_facet |
Figueroa-Esquivel, Elsa M. Hernández-Almeida, Óscar Ubisha Vega-Frutis, Rocío Luja Molina, Víctor H. Villaseñor Gómez, José Fernando |
| author_sort |
Figueroa-Esquivel, Elsa M. |
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Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
| title_short |
Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
| title_full |
Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
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Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
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Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
| title_sort |
frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements |
| description |
Many of Mexico's mature tropical forests are immersed in a complex landscape with agricultural fields, second-growth vegetation, and forest fragments; assemblages of frugivorous birds vary in these different landscape elements. We studied assemblages of birds feeding on fruits of three tree species in continuous forest, vegetation corridors, isolated forest fragments, and secondary vegetation. Through direct observation of focal trees and documentation of frugivorous feeding activities, we use effective species numbers and Non-Metric Multidimensional Scaling to describe the variation of habitat use patterns between assemblages. We recorded 1162 individuals of 57 bird species feeding on ripe fruits of Nectandra salicifolia, Dendropanax arboreus, and Bursera simaruba. Thirty-two species fed on isolated fragments and corridors of vegetation; our analysis grouped these two landscape elements by their species composition, representing 64.6% of all recorded individuals. The composition of the assemblages was influenced by the availability of fruits; Bursera simaruba exhibited a prolonged fruiting period and attracted a wider range of consumer species. Although the number of species varied slightly between different elements of the landscape, the importance of corridors and isolated forest fragments was key to the connectivity between bird and tree populations. At the geographic scale of this study, the transformation of the area does not reduce the diversity of frugivorous bird assemblages, as a result of the connectivity between the different elements of the landscape. |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales |
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2023 |
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https://revistas.unal.edu.co/index.php/cal/article/view/100624 |
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oai:www.revistas.unal.edu.co:article-1006242024-01-26T22:47:24Z Frugivorous birds’ assemblages in neotropical forest: the relevance of landscape elements Ensamble de aves frugívoras en una selva neotropical: la relevancia de los elementos del paisaje Figueroa-Esquivel, Elsa M. Hernández-Almeida, Óscar Ubisha Vega-Frutis, Rocío Luja Molina, Víctor H. Villaseñor Gómez, José Fernando bird community frugivorous assemblages plant-bird interactions transformed habitat tropical landscape comunidad de aves ensamble de frugívoros hábitat transformado interacciones planta-ave paisaje tropical Many of Mexico's mature tropical forests are immersed in a complex landscape with agricultural fields, second-growth vegetation, and forest fragments; assemblages of frugivorous birds vary in these different landscape elements. We studied assemblages of birds feeding on fruits of three tree species in continuous forest, vegetation corridors, isolated forest fragments, and secondary vegetation. Through direct observation of focal trees and documentation of frugivorous feeding activities, we use effective species numbers and Non-Metric Multidimensional Scaling to describe the variation of habitat use patterns between assemblages. We recorded 1162 individuals of 57 bird species feeding on ripe fruits of Nectandra salicifolia, Dendropanax arboreus, and Bursera simaruba. Thirty-two species fed on isolated fragments and corridors of vegetation; our analysis grouped these two landscape elements by their species composition, representing 64.6% of all recorded individuals. The composition of the assemblages was influenced by the availability of fruits; Bursera simaruba exhibited a prolonged fruiting period and attracted a wider range of consumer species. Although the number of species varied slightly between different elements of the landscape, the importance of corridors and isolated forest fragments was key to the connectivity between bird and tree populations. At the geographic scale of this study, the transformation of the area does not reduce the diversity of frugivorous bird assemblages, as a result of the connectivity between the different elements of the landscape. Muchos de los bosques tropicales maduros de México están inmersos en un paisaje complejo con campos agrícolas, vegetación secundaria y fragmentos boscosos; los ensambles de aves frugívoras varían en estos diferentes elementos del paisaje. Estudiamos ensambles de aves que se alimentan de frutos de tres especies arbóreas en bosque continuo, corredores de vegetación, fragmentos de bosque aislados y vegetación secundaria. A través de observación directa de árboles focales y la documentación de las actividades de alimentación de las aves frugívoras, usamos el número de especies efectivas y el Escalamiento Multidimensional No Métrico para describir la variación de los patrones de uso del hábitat entre ensambles. Registramos 1162 individuos de 57 especies de aves alimentándose de frutos maduros de Nectandra salicifolia, Dendropanax arboreus y Bursera simaruba. Treinta y dos especies se alimentaron en fragmentos aislados y corredores de vegetación; nuestro análisis agrupó estos dos elementos del paisaje por su composición de especies, representando 64.6% de todos los individuos registrados. La composición de los ensambles estuvo influenciada por la disponibilidad de frutos; Bursera simaruba exhibió un período de fructificación prolongado y atrajo una amplia gama de especies consumidoras. Aunque el número de especies varió ligeramente entre diferentes elementos del paisaje, la importancia de corredores y fragmentos de bosque aislados fue clave para la conectividad entre poblaciones de aves y árboles. A la escala geográfica de este estudio, la transformación del área no reduce la diversidad de los ensambles de aves frugívoras, como resultado de la conectividad entre los diferentes elementos del paisaje. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales 2023-11-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Full papers Artículo completo application/pdf https://revistas.unal.edu.co/index.php/cal/article/view/100624 10.15446/caldasia.v46n2.100624 Caldasia; Vol. 46 No. 2 (2024): Early view Caldasia; Vol. 46 Núm. 2 (2024): Versión anticipada 2357-3759 0366-5232 eng https://revistas.unal.edu.co/index.php/cal/article/view/100624/90897 https://creativecommons.org/licenses/by/4.0 |