Search Results (3)

Research efforts to protect Philippine biodiversity have increased significantly. However, there is an imbalance in the distribution of published studies, with specific territories receiving more attention than others. Mindanao, a southern Philippine group of islands, is known for its high levels of endemism for amphibians and reptiles. Despite this, research on these groups remains scattered. To address this gap, we conducted a literature review focusing on amphibians and reptiles in the Mindanao faunal region. We found an increasing effort towards herpetofauna over the two decades, yet there is a clear bias in the effort towards amphibians compared to reptiles. Furthermore, we found that amphibians have a significantly higher species threat index than reptiles and all other vertebrate groups, regardless of species endemism and conservation status. Yet, threatened herpetofauna species and those facing greater threats are poorly studied in general. Understanding the factors driving research biases in Mindanao and the Philippines is essential to allow us to redirect research efforts to the most needed areas, particularly understudied and neglected taxa in Mindanao. This is especially urgent in the face of a changing climate, where diverse herpetofauna communities are at an increased risk of extinction. Consequently, by bridging these gaps in biodiversity information, we can effectively contribute to the conservation and understanding of biodiversity in the region. Full article

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. Full article

The COVID-19 pandemic has caused significant changes in public and human activities worldwide, including using masks and reducing human interaction. These changes have also affected wildlife behavior, especially in urban areas. However, there is limited understanding of the impact of COVID-19-related human activities, mainly mask wearing, on the behavior of urban bird species. This case is intriguing in the Philippines, where COVID-19 restrictions and mask wearing have been more prolonged than in other countries. We studied two common urban bird species (Geopelia striata and Passer montanus) in Southcentral Mindanao, Philippines, to assess their response to mask wearing by examining their alert distance (AD) and flight initiation distance (FID). We found that birds had a reduced FID to mask wearing, but only significantly in G. striata (Zebra Doves) and not in P. montanus (Eurasian tree sparrow). The effect of the variables related to urbanization on FID was contrasting. For example, ambient noise increased bird vigilance while proximity to roads reduced bird FID in urbanized areas, but their effects were weaker compared to mask wearing. We conclude that mask wearing during the COVID-19 pandemic is a significant environmental element that alters bird escape responses in urban areas, and the effects may be species-specific. Full article