Published online August 5, 2024
https://doi.org/10.5141/jee.24.032
Journal of Ecology and Environment (2024) 48:26
Ehsan Rahimi1 and Chuleui Jung1,2*
1Agricultural Science and Technology Institute, Andong National University, Andong 36729, Republic of Korea
2Department of Plant Medical, Andong National University, Andong 36729, Republic of Korea
Correspondence to:Chuleui Jung
E-mail cjung@andong.ac.kr
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Background: Research investigating the relationship between latitude and network specialization plant-pollinator networks present conflicting results. While some studies indicate a positive link between latitude and network specialization, particularly in tropical regions, others suggest contradictory trends, with specialization declining towards lower latitudes. These studies underscore the intricate nature of ecological specialization in plant-pollinator networks and the need for further studies in this field to gain a more nuanced understanding of the underlying mechanisms driving these patterns. In this study, we explore the relationship between plant-pollinator network specialization and latitude using a global dataset comprising 93 plant-pollinator networks.
Results: Our analysis revealed a significant relationship with latitude mostly in the Southern Hemisphere, particularly concerning metrics such as connectance and nestedness. However, notably, we found no association with H2, a metric immune to the size, shape, or sampling effects of the network and considered highly suitable for measuring network specialization in both Hemispheres.
Conclusions: The absence of latitudinal trends in network specialization (H2) in both Hemispheres in this study imply that the mutual attraction between plants and pollinators remains relatively stable across various latitudes. Our comparison with prior research highlights the diversity of conclusions regarding how latitude influences plant-pollinator networks. While our results are consistent with certain studies, indicating no direct impact of latitude on network specialization, discrepancies persist.
Keywords: bipartite metrics, latitudinal effects, network specialization, plant-pollinator networks
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