Micro-habitat selection and population recovery of the Endangered Green Peafowl Pavo muticus in western Thailand: implications for conservation guidance

Abstract

SummaryThe endangered Green Peafowl Pavo muticus is one of the most threatened vertebrate species in South-East Asia and has undergone a rapid decline in both distribution and population density. The remaining populations are mostly limited to protected areas where an understanding of their ecological requirements is required to ensure that conservation management is effective. To clarify this, we investigated their population status and ecological requirements in Huai Kha Khaeng Wildlife Sanctuary, western Thailand. Line transect surveys across five sections of the Sanctuary revealed variation in population density, apparently linked to recent levels of human activity and management. Comparison of encounter rates along transects with those recorded in similar surveys conducted 21 years previously showed an increase in numbers in most of the peripheral areas of the sanctuary whilst numbers in the core area have remained stable. Using camera trapping and radio tracking to investigate habitat selection all year round, our results showed that the Green Peafowl preferred areas with an open understorey but a high percentage cover of ground vegetation. During the breeding season they preferred to cluster near streams to establish a display site, whilst in the non-breeding season they ranged more widely but still preferred areas of open understorey and high ground cover. We present some evidence of temporary avoidance of areas recently frequented by large predators (tiger and common leopard). Our results suggest that increased patrols to control hunting help to allow Green Peafowl populations to recover. We suggest that measures that allow recovery of populations of species such as Green Peafowl will ultimately enhance large predator conservation through increasing their prey base.