The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina
The introduction of exotic species constitutes one of the main threats to biodiversity around the world. Spathodea campanulata is a tree species cultivated for its ornamental value, having toxic nectar with insecticidal properties, particularly against bees. In Argentina, its effects on the native entomofauna are unknown. This study explores the mortality effects of S. campanulata on the native entomofauna in a green area of Corrientes city. From the study of three trees, the percentage of flowers with dead entomofauna specimens inside was analyzed and the abundance of the taxa represented was determined. Diversity indices, species richness, inventory completeness and range-abundance curve were calculated. The results revealed the native bee Scaptotrigona jujuyensis was the most abundant, with a total of 46 specimens out of a total of 151 specimens, among which were founded representatives of the orders Himenoptera, Diptera, Coleoptera, Hemiptera, and Araneae. This exploratory study warns that S. campanulata is a potential threat to native entomofauna in urban areas.
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Asociación Argentina de Ecología
2024
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rev-ecoaus-article-23522024-08-06T23:36:54Z The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina El tulipanero africano Spathodea campanulata (Bignoniaceae) en la Argentina: Impacto de una planta exótica sobre la mortalidad de entomofauna nativa Ayala, Florencia E. Avalos, Adan A. Cajade, Rodrigo invasive mortality toxic urban bees abejas invasor mortalidad tóxico urbano The introduction of exotic species constitutes one of the main threats to biodiversity around the world. Spathodea campanulata is a tree species cultivated for its ornamental value, having toxic nectar with insecticidal properties, particularly against bees. In Argentina, its effects on the native entomofauna are unknown. This study explores the mortality effects of S. campanulata on the native entomofauna in a green area of Corrientes city. From the study of three trees, the percentage of flowers with dead entomofauna specimens inside was analyzed and the abundance of the taxa represented was determined. Diversity indices, species richness, inventory completeness and range-abundance curve were calculated. The results revealed the native bee Scaptotrigona jujuyensis was the most abundant, with a total of 46 specimens out of a total of 151 specimens, among which were founded representatives of the orders Himenoptera, Diptera, Coleoptera, Hemiptera, and Araneae. This exploratory study warns that S. campanulata is a potential threat to native entomofauna in urban areas. La introducción de especies exóticas constituye una de las principales amenazas para la biodiversidad a nivel mundial. Spathodea campanulata es una especie arbórea cultivada como ornamental, cuyo néctar tóxico presenta propiedades con actividad insecticida, en especial contra abejas. En la Argentina se desconocen sus efectos sobre la entomofauna. Por lo tanto, este estudio explora los efectos de mortalidad causados por S. campanulata sobre la entomofauna nativa en un área verde de la ciudad de Corrientes. A partir del estudio de tres árboles se analizó el porcentaje de flores con especímenes de entomofauna muertos en su interior y se determinó la abundancia de los taxones representados. Se calcularon índices de diversidad, riqueza de especies, completitud del inventario y curva de rango abundancia. Los resultados indican que la abeja nativa Scaptotrigona jujuyensis presentó la mayor mortalidad, con un total de 46 ejemplares de un total de 151, entre los que se hallaron representantes de los órdenes Himenoptera, Diptera, Coleoptera, Hemiptera y Araneae. Este estudio exploratorio advierte que S. campanulata es una amenaza potencial para la entomofauna nativa en áreas urbanas. Asociación Argentina de Ecología 2024-07-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Communications Comunicaciones application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2352 10.25260/EA.24.34.2.0.2352 Ecología Austral; Vol. 34 No. 2 (2024): August 2024. Pages 203-421; 322-329 Ecología Austral; Vol. 34 Núm. 2 (2024): August 2024. Pages 203-421; 322-329 1667-782X 0327-5477 spa https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2352/1502 Derechos de autor 2024 Florencia E. Ayala, Adan A. Avalos, Rodrigo Cajade https://creativecommons.org/licenses/by/4.0/deed.es |
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Asociación Argentina de Ecología |
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| author |
Ayala, Florencia E. Avalos, Adan A. Cajade, Rodrigo |
| spellingShingle |
Ayala, Florencia E. Avalos, Adan A. Cajade, Rodrigo The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| author_facet |
Ayala, Florencia E. Avalos, Adan A. Cajade, Rodrigo |
| author_sort |
Ayala, Florencia E. |
| title |
The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| title_short |
The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| title_full |
The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| title_fullStr |
The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| title_full_unstemmed |
The African Tulip Spathodea campanulata (Bignoniaceae): Impact on pollinators of an exotic plant in Argentina |
| title_sort |
african tulip spathodea campanulata (bignoniaceae): impact on pollinators of an exotic plant in argentina |
| description |
The introduction of exotic species constitutes one of the main threats to biodiversity around the world. Spathodea campanulata is a tree species cultivated for its ornamental value, having toxic nectar with insecticidal properties, particularly against bees. In Argentina, its effects on the native entomofauna are unknown. This study explores the mortality effects of S. campanulata on the native entomofauna in a green area of Corrientes city. From the study of three trees, the percentage of flowers with dead entomofauna specimens inside was analyzed and the abundance of the taxa represented was determined. Diversity indices, species richness, inventory completeness and range-abundance curve were calculated. The results revealed the native bee Scaptotrigona jujuyensis was the most abundant, with a total of 46 specimens out of a total of 151 specimens, among which were founded representatives of the orders Himenoptera, Diptera, Coleoptera, Hemiptera, and Araneae. This exploratory study warns that S. campanulata is a potential threat to native entomofauna in urban areas. |
| publisher |
Asociación Argentina de Ecología |
| publishDate |
2024 |
| url |
https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/2352 |
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