Dispersal of Philippine Eagles Released in the Forests of Mindanao, Philippines

Abaño, Tatiana R.C.; Tampos, Giovanne G.; Taraya, Rowell L.; Salvador, Dennis J. I.; Ibañez, Jayson C.

doi:10.3356/rapt-49-04-506-512.1

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…In addition, the Harpy Eagle uses perchhunting and does not soar like other eagles, so this species does not need to cover large distances when hunting. Abaño et al (2015) also reported greater movements for the Philippine Eagle, a species similar to the Harpy Eagle in size and biology (del Hoyo et al 1994). However, the results are not directly comparable because that study involved released individuals.…”

Section: Discussionmentioning

confidence: 98%

Juvenile Dispersal of Harpy Eagles (Harpia harpyja) in Ecuador

Urios

Muñiz-López²,

Vidal‐Mateo³

2017

Journal of Raptor Research

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Section: Discussionmentioning

confidence: 98%

Juvenile Dispersal of Harpy Eagles (Harpia harpyja) in Ecuador

Urios

Muñiz-López²,

Vidal‐Mateo³

2017

Journal of Raptor Research

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“…Observed differences in movements by individuals of the same population may reflect individual behavioral or physiological traits (Merrick and Koprowski 2017). Abaño et al (2015) attributed large variability in space use and dispersal distance of Philippine Eagles to randomness of dispersal directions and habitat preferences. We have no information on whether wild Harpy Eagles similarly exhibit great variability in movement strategies as did the captive-reared and wild-rehabilitated individuals in our study and in Brazil (Aguiar-Silva 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Studies on movements of large tropical raptors are often characterized by small sample sizes, limiting the ability to clearly identify ecological patterns. For example, Abaño et al (2015) found large variability in dispersal of six Philippine Eagles (Pithecophaga jefferyi) and van Eeden et al…”

Section: Introductionmentioning

confidence: 99%

Dispersal and space use of captive-reared and wild-rehabilitated Harpy Eagles released in Central American landscapes: Implications for reintroduction and reinforcement management

Naveda‐Rodríguez¹,

Campbell-Thompson²,

Watson³

et al. 2022

Preprint

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Understanding the spatial context of animal movements is fundamental for establishment and management of protected areas (PA). However, these data are not readily available for large raptors, particularly for tropical species. We telemetry-tracked 36 captive-reared and wild-rehabilitated Harpia harpyja and estimated dispersal and space use after release in Mesoamerica. We evaluated the effectiveness of PA in the protection of home ranges and examined how individual traits (sex/age), human intervention (captive management/release method) and landscape composition and configuration influenced dispersal and home range using mixed-effects models. Mean post-release dispersal was 29.4 km (95% CI: 22.5-38.5), annual home ranges averaged 1039.5 km2 (95% CI: 627-1941). The home ranges of nine individuals were distributed across three countries. Home ranges were influenced by release method, patch richness, patch and edge density, and contagion. PA in Mesoamerica may not be effective conservation units for this species. Harpy Eagle average home range greatly exceeded the average size of 1115 terrestrial PA (52.7±6.1 km2) in Mesoamerica. Given its spatial requirements, restoration of the Harpy Eagle in Mesoamerica may provide an opportunity to inform the design and management of dynamic conservation concepts, such as biological corridors. Due to their wide use of space, including transboundary, Harpy Eagles conservation efforts may fail if they are not carefully coordinated between the countries involved. Future restoration efforts of umbrella forest-dwelling raptors should select release sites with highly aggregated and poorly interspersed forest. Release sites should have a buffer of approximately 30 km and should be located completely within PA.

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Inventory and abundance of non-volant mammals and birds in the unprotected regions of the Mount Apo Range, Philippines

Villegas¹,

Rosales

Tampos

et al. 2023

J. Threat. Taxa

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Wildlife, such as non-volant mammals and birds, play a vital role in the maintenance of ecosystem health. They are considered ecological engineers that influence forest vegetation. However, due to deforestation, habitat loss, and human persecution, its population status has declined over the years. This study aimed to conduct a species inventory and assess the relative abundance of non-volant mammals and birds in the unprotected regions of the Mt. Apo Range, Philippines, through camera trapping methods. Furthermore, the anthropogenic threats observed in the study areas were also documented. A total of 1,106 camera trap days were carried out in 2016 and another 500 days in 2020. Based on 260 independent sequences for both the 2016 and 2020 surveys, 12 species were identified, consisting of eight non-volant mammals and four birds. Among the identified species are the Endangered Philippine Brown Deer Rusa marianna & Philippine Long-tailed Macaque Macaca fascicularis philippensis and the Vulnerable Giant Scops-owl Otus gurneyi & the Philippine Warty Pig Sus philippensis. Video evidence of the Philippine Warty Pig Sus philippensis performing an important ecological role as an ecological engineer in the Philippine tropical forests were also captured for the first time. Another 61 independent sequences of unidentified rodents were detected in the camera traps, requiring further species monitoring techniques. Conservation must be strengthened beyond the protected landscapes of the Mt. Apo Range through community-based forest governance. This will ensure that the forest vertebrates are protected and conserved from further anthropogenic pressures.

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Dispersal of Philippine Eagles Released in the Forests of Mindanao, Philippines

Cited by 4 publications

References 14 publications

Juvenile Dispersal of Harpy Eagles (Harpia harpyja) in Ecuador

Juvenile Dispersal of Harpy Eagles (Harpia harpyja) in Ecuador

Dispersal and space use of captive-reared and wild-rehabilitated Harpy Eagles released in Central American landscapes: Implications for reintroduction and reinforcement management

Inventory and abundance of non-volant mammals and birds in the unprotected regions of the Mount Apo Range, Philippines

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