Environmental niche and functional role similarity between invasive and native palms in the Atlantic Forest
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ORIGINAL PAPER
Environmental niche and functional role similarity between invasive and native palms in the Atlantic Forest Carolina Bello . Ana Laura P. Cintra . Elisa Barreto . Maurı´cio Humberto Vancine Thadeu Sobral-Souza . Catherine H. Graham . Mauro Galetti
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Received: 9 January 2020 / Accepted: 28 October 2020 The Author(s) 2020
Abstract Invasive species can significantly affect native species when their niches are similar. Ecological and morphological similarities between the invasive Australian palm, Archontophoenix cunninghamiana, and the native palm from the Brazilian Atlantic Forest, Euterpe edulis, suggest that they have similar environmental requirements and functional roles (i.e., the function a species performs in an ecosystem). This similarity raises concerns about how the invasive palm could impact the native species in the present and future. We used spatial (species occurrences) and ecological information (frugivory events) to characterize the environmental niche and functional role of the two palms and assess their overlap. In addition, we predicted the potential area of
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10530-020-02400-8) contains supplementary material, which is available to authorized users. C. Bello (&) A. L. P. Cintra M. H. Vancine M. Galetti Departamento de Biodiversidade, Instituto de Biocieˆncias, Universidade Estadual Paulista (UNESP), 13506-900 Rio Claro, Sa˜o Paulo, Brazil e-mail: [email protected] C. Bello E. Barreto C. H. Graham Swiss Federal Research Institute WSL, Zu¨rcherstrasse 111, 8903 Birmensdorf, Switzerland
occurrence of each palm within the Brazilian Atlantic Forest under current and future climate conditions.We estimated the environmental conditions used by the invasive plant based on its native distribution only, and based on all areas where the species is able to establish across the globe. We found that the environmental niches of the two palm species overlap up to 39%, which corresponds to 50% of the current geographic distribution of E. edulis in the Atlantic Forest. In the areas where the two species potentially co-occur, the impact of the invasive species on the native should be influenced by the invasive species interactions with frugivores. We found that the frugivory functional role of the two palms was similar (84% overlap) which suggest that A. cunninghamiana might disrupt the seed dispersal of the native palm. However, co-occurrence between the palms may decline with future climate change, as the potentially environmental suitable area for the invasive palm is predicted to decline by 10% to 55%. Evaluating the E. Barreto Programa de Po´s-graduac¸a˜o em Ecologia e Evoluc¸a˜o, Universidade Federal de Goia´s, Goiaˆnia, Brazil T. Sobral-Souza Departamento de Botaˆnica e Ecologia, Universidade Federal de Mato Grosso (UFMT), Campus Cuiaba´, Mato Grosso, Brazil M. Galetti Department of Biology, University of Miami, Coral Gables, FL, USA
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