Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba

Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba

Shorebirds are noted for their long migrations and their dependence on a wide variety of wetlands annually. Their distribution in foraging habitats is related to the availability of prey. In this work, we characterized the diet of three species of the genus Calidris, C. minutilla, C. pusilla, and C. mauri in the wetlands of Río Máximo (RM) and Tunas of Zaza (TZ) and studied their relationship with prey availability. The diet was characterized by an analysis of stomach contents of individuals collected after peak feeding times. Prey availability was evaluated by taking 20 sediment samples with a 50 CC syringe that was buried at a depth of 10 mm. Subsequently, samples were filtered with a 500-micron sieve to facilitate identification. Diet analysis confirmed a high use of Diptera larvae and pupae by all three species in RM. In TZ, Diptera was dominant in the diet of C. minutilla, but the other species made a more balanced use of other items. The similarity between the resources available in the sediment and those found in the diet was less in TZ than in RM. Tanaidaceae (Malacostraca) were the most abundant item in the TZ sediment; however, it was not identified in any stomach. In general, in RM the prey was consumed according to their availability, while in TZ there was more selectivity in the use of the food.

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Main Authors: González, Alieny, JIMÉNEZ, ARIAM, GARCÍA-LAU, IANELA, MUGICA, LOURDES, ACOSTA, MARTÍN
Format: Digital revista
Language:spa
Published: Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales 2022
Online Access:https://revistas.unal.edu.co/index.php/cal/article/view/85223
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spelling oai:www.revistas.unal.edu.co:article-852232022-10-10T22:04:34Z Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba Ecología trófica de Calidris minutilla, Calidris pusilla y Calidris mauri (Aves: Scolopacidae) en dos humedales naturales de Cuba González, Alieny JIMÉNEZ, ARIAM GARCÍA-LAU, IANELA MUGICA, LOURDES ACOSTA, MARTÍN Aves limícolas disponibilidad de alimento hábitos de alimentación humedales selección trófica Feeding habits food availability shorebirds trophic selection wetlands Shorebirds are noted for their long migrations and their dependence on a wide variety of wetlands annually. Their distribution in foraging habitats is related to the availability of prey. In this work, we characterized the diet of three species of the genus Calidris, C. minutilla, C. pusilla, and C. mauri in the wetlands of Río Máximo (RM) and Tunas of Zaza (TZ) and studied their relationship with prey availability. The diet was characterized by an analysis of stomach contents of individuals collected after peak feeding times. Prey availability was evaluated by taking 20 sediment samples with a 50 CC syringe that was buried at a depth of 10 mm. Subsequently, samples were filtered with a 500-micron sieve to facilitate identification. Diet analysis confirmed a high use of Diptera larvae and pupae by all three species in RM. In TZ, Diptera was dominant in the diet of C. minutilla, but the other species made a more balanced use of other items. The similarity between the resources available in the sediment and those found in the diet was less in TZ than in RM. Tanaidaceae (Malacostraca) were the most abundant item in the TZ sediment; however, it was not identified in any stomach. In general, in RM the prey was consumed according to their availability, while in TZ there was more selectivity in the use of the food. Las aves limícolas se destacan por sus largas migraciones y su dependencia de una amplia variedad de humedales anualmente. Su distribución en los hábitats de forrajeo está relacionada con la disponibilidad de presas. En este trabajo se caracterizó la dieta de tres especies del género Calidris, C. minutilla, C. pusilla y C. mauri en los humedales de Río Máximo (RM) y Tunas de Zaza (TZ) y es estudió su relación con la disponibilidad de presas. La dieta se caracterizó mediante análisis del contenido estomacal de individuos recolectados luego del horario pico de alimentación. La disponibilidad de presas se evaluó tomando 20 muestras de sedimento con una jeringuilla de 50 CC que fue enterrada a una profundidad de 10 mm. Posteriormente, las muestras fueron filtradas con un tamiz de 500 micras para facilitar la identificación. En RM el análisis de la dieta confirmó un elevado uso de larvas y pupas de dípteros por las tres especies. En TZ los dípteros fueron dominantes en la dieta de C. minutilla, pero las otras especies hicieron un uso más balanceado del alimento. La similitud entre los recursos disponibles en el sedimento y los encontrados en la dieta fue menor en TZ que en RM. Los tanaidáceos (Malacostraca) fueron la entidad más abundante en el sedimento de TZ, sin embargo, no se identificó en ningún estómago. De modo general, en RM las presas fueron consumidas de acuerdo con su disponibilidad, mientras que en TZ hubo mayor selectividad en el uso del alimento. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales 2022-03-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unal.edu.co/index.php/cal/article/view/85223 10.15446/caldasia.v44n1.85223 Caldasia; Vol. 44 No. 1 (2022); 154-164 Caldasia; Vol. 44 Núm. 1 (2022); 154-164 2357-3759 0366-5232 spa https://revistas.unal.edu.co/index.php/cal/article/view/85223/78287 Derechos de autor 2021 Caldasia https://creativecommons.org/licenses/by/4.0
institution UNAL
collection OJS
country Colombia
countrycode CO
component Revista
access En linea
databasecode rev-cal
tag revista
region America del Sur
libraryname Sistema Nacional de Bibliotecas de la UNAL
language spa
format Digital
author González, Alieny
JIMÉNEZ, ARIAM
GARCÍA-LAU, IANELA
MUGICA, LOURDES
ACOSTA, MARTÍN
spellingShingle González, Alieny
JIMÉNEZ, ARIAM
GARCÍA-LAU, IANELA
MUGICA, LOURDES
ACOSTA, MARTÍN
Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
author_facet González, Alieny
JIMÉNEZ, ARIAM
GARCÍA-LAU, IANELA
MUGICA, LOURDES
ACOSTA, MARTÍN
author_sort González, Alieny
title Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
title_short Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
title_full Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
title_fullStr Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
title_full_unstemmed Trophic ecology of Calidris minutilla, Calidris pusilla, and Calidris mauri (Aves: Scolopacidae) in two natural wetlands of Cuba
title_sort trophic ecology of calidris minutilla, calidris pusilla, and calidris mauri (aves: scolopacidae) in two natural wetlands of cuba
description Shorebirds are noted for their long migrations and their dependence on a wide variety of wetlands annually. Their distribution in foraging habitats is related to the availability of prey. In this work, we characterized the diet of three species of the genus Calidris, C. minutilla, C. pusilla, and C. mauri in the wetlands of Río Máximo (RM) and Tunas of Zaza (TZ) and studied their relationship with prey availability. The diet was characterized by an analysis of stomach contents of individuals collected after peak feeding times. Prey availability was evaluated by taking 20 sediment samples with a 50 CC syringe that was buried at a depth of 10 mm. Subsequently, samples were filtered with a 500-micron sieve to facilitate identification. Diet analysis confirmed a high use of Diptera larvae and pupae by all three species in RM. In TZ, Diptera was dominant in the diet of C. minutilla, but the other species made a more balanced use of other items. The similarity between the resources available in the sediment and those found in the diet was less in TZ than in RM. Tanaidaceae (Malacostraca) were the most abundant item in the TZ sediment; however, it was not identified in any stomach. In general, in RM the prey was consumed according to their availability, while in TZ there was more selectivity in the use of the food.
publisher Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
publishDate 2022
url https://revistas.unal.edu.co/index.php/cal/article/view/85223
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