Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation
The Philippine Eagle Pithecophaga jefferyi is a diurnal raptor endemic to the Philippines. Its distribution is restricted to remaining forests on the islands of Luzon, Samar, Leyte and Mindanao. The Philippine Eagle is classified as a Critically Endangered species under the IUCN Red List, with a h...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wildlife Information Liaison Development Society
2014-09-01
|
| Series: | Journal of Threatened Taxa |
| Online Access: | http://threatenedtaxa.org/index.php/JoTT/article/view/1127 |
| _version_ | 1819178288576200704 |
|---|---|
| author | A.U. Luczon I.K.C. Fontanilla P.S. Ong Z.U. Basiao A.M.T. Sumaya J.P. Quilang |
| author_facet | A.U. Luczon I.K.C. Fontanilla P.S. Ong Z.U. Basiao A.M.T. Sumaya J.P. Quilang |
| author_sort | A.U. Luczon |
| collection | DOAJ |
| description | The Philippine Eagle Pithecophaga jefferyi is a diurnal raptor endemic to the Philippines. Its distribution is restricted to remaining forests on the islands of Luzon, Samar, Leyte and Mindanao. The Philippine Eagle is classified as a Critically Endangered species under the IUCN Red List, with a high end estimated population of only 500 breeding pairs in the wild. Population decline has been attributed to continuing deforestation, particularly since the mid-1900s, and hunting. This study aimed to identify the effects of population decline on the genetic structure of the present population of the Philippine Eagle by sequencing 1132bp of the mitochondrial control region from 22 individuals. Control region haplotype diversity (h = 0.8960±0.05590) and nucleotide diversity (π = 0.006194±0.003372) are comparable with other accipitrid species. Maximum likelihood trees and network analysis show that the Luzon and Samar individuals come from different lineages, but both shared a common ancestral population with the Mindanao population. The genetic diversity, multimodal mismatch distribution for the control region and high frequency of lower class modes all indicate a recent bottleneck for the Philippine Eagle population. Possible strategies for conservation are discussed. |
| first_indexed | 2024-12-22T21:40:10Z |
| format | Article |
| id | doaj.art-c1c6f592fcde4419942f3cc61ff3cce9 |
| institution | Directory Open Access Journal |
| issn | 0974-7893 0974-7907 |
| language | English |
| last_indexed | 2024-12-22T21:40:10Z |
| publishDate | 2014-09-01 |
| publisher | Wildlife Information Liaison Development Society |
| record_format | Article |
| series | Journal of Threatened Taxa |
| spelling | doaj.art-c1c6f592fcde4419942f3cc61ff3cce92022-12-21T18:11:39ZengWildlife Information Liaison Development SocietyJournal of Threatened Taxa0974-78930974-79072014-09-016106335634410.11609/JoTT.o3748.6335-441107Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservationA.U. LuczonI.K.C. FontanillaP.S. OngZ.U. BasiaoA.M.T. SumayaJ.P. QuilangThe Philippine Eagle Pithecophaga jefferyi is a diurnal raptor endemic to the Philippines. Its distribution is restricted to remaining forests on the islands of Luzon, Samar, Leyte and Mindanao. The Philippine Eagle is classified as a Critically Endangered species under the IUCN Red List, with a high end estimated population of only 500 breeding pairs in the wild. Population decline has been attributed to continuing deforestation, particularly since the mid-1900s, and hunting. This study aimed to identify the effects of population decline on the genetic structure of the present population of the Philippine Eagle by sequencing 1132bp of the mitochondrial control region from 22 individuals. Control region haplotype diversity (h = 0.8960±0.05590) and nucleotide diversity (π = 0.006194±0.003372) are comparable with other accipitrid species. Maximum likelihood trees and network analysis show that the Luzon and Samar individuals come from different lineages, but both shared a common ancestral population with the Mindanao population. The genetic diversity, multimodal mismatch distribution for the control region and high frequency of lower class modes all indicate a recent bottleneck for the Philippine Eagle population. Possible strategies for conservation are discussed.http://threatenedtaxa.org/index.php/JoTT/article/view/1127 |
| spellingShingle | A.U. Luczon I.K.C. Fontanilla P.S. Ong Z.U. Basiao A.M.T. Sumaya J.P. Quilang Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation Journal of Threatened Taxa |
| title | Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation |
| title_full | Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation |
| title_fullStr | Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation |
| title_full_unstemmed | Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation |
| title_short | Genetic diversity of the Critically Endangered Philippine Eagle <i>Pithecophaga jefferyi</i> (Aves: Accipitridae) and notes on its conservation |
| title_sort | genetic diversity of the critically endangered philippine eagle i pithecophaga jefferyi i aves accipitridae and notes on its conservation |
| url | http://threatenedtaxa.org/index.php/JoTT/article/view/1127 |
| work_keys_str_mv | AT auluczon geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation AT ikcfontanilla geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation AT psong geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation AT zubasiao geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation AT amtsumaya geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation AT jpquilang geneticdiversityofthecriticallyendangeredphilippineeagleipithecophagajefferyiiavesaccipitridaeandnotesonitsconservation |