Fruit Color Preference of Frugivorous Birds in an Agroecosystem in Southcentral Mindanao, Philippines

Q4 Agricultural and Biological Sciences Western Birds Pub Date : 2023-04-24 DOI:10.3390/birds4020016
Navel Kyla B. Balasa, Jirriza O. Roquero, Asraf K. Lidasan, Lothy F. Casim, A. Agduma, K. Tanalgo
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Abstract

The removal of fruit is a consequence of plant–animal interactions, and is a vital step in the natural regeneration cycle of plant populations. This research aimed to determine the effect of fruit color and local landscape on plant–bird interactions in an agroecosystem in Southcentral Mindanao, Philippines. We set out 1500 artificial fruit models in ten sampling locations within an agroecosystem. We measured the difference in the proportion of predated/removed (%) fruit models and the risk between sites, fruit color, and predators. Approximately a quarter (24.53%) of the artificial fruit models deployed were predated, and the proportion of predation was significantly higher in the red fruit models (mean = 18.74 ± 9.84) compared to the green fruit models (mean = 11.67 ± 6.17). Birds were the most dominant predators compared to mammals and arthropods, and contributed to at least 60% of the predation of red fruits. Our findings are consistent with previous evidence showing birds’ preferences for darker fruit colors. Although landscape variables did not significantly affect fruit predation, tree cover may help increase these interactions. Overall, our study showed that agroecosystems can still support species of frugivorous birds, as indicated by high fruit predation rates, particularly by birds that can permeate different layers of the agroecosystem. Our findings demonstrate an important implication for habitat quality management within agroecosystems. Enriching agroecosystems with pioneer trees with dark-colored fleshy fruits is a sustainable greening strategy that would benefit frugivores and producers in this system.
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菲律宾棉兰老岛中南部农业生态系统中果食性鸟类的果实颜色偏好
果实的摘取是植物与动物相互作用的结果,是植物种群自然更新循环的重要步骤。本研究旨在确定果实颜色和当地景观对菲律宾棉兰老岛中南部农业生态系统植物-鸟类相互作用的影响。我们在一个农业生态系统的10个采样点设置了1500个人工水果模型。我们测量了在不同地点、水果颜色和捕食者之间,早熟/被移除水果模型的比例和风险的差异。约四分之一(24.53%)的人工水果模型被捕食,其中红色水果模型的捕食比例(平均值= 18.74±9.84)显著高于绿色水果模型(平均值= 11.67±6.17)。与哺乳动物和节肢动物相比,鸟类是最占优势的捕食者,至少占红色水果捕食量的60%。我们的发现与之前的证据一致,即鸟类更喜欢深色的水果。虽然景观变量对水果捕食没有显著影响,但树木覆盖可能有助于增加这些相互作用。总的来说,我们的研究表明,农业生态系统仍然可以支持果食性鸟类的物种,正如高水果捕食率所表明的那样,特别是那些可以渗透到农业生态系统不同层的鸟类。研究结果对农业生态系统的生境质量管理具有重要意义。用具有深色肉质果实的先锋树丰富农业生态系统是一种可持续的绿化策略,这将有利于该系统中的食果动物和生产者。
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来源期刊
Western Birds
Western Birds Agricultural and Biological Sciences-Animal Science and Zoology
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