Journal of Threatened Taxa | www.threatenedtaxa.org | 26 February 2020 | 12(3): 15355–15358

 

 

ISSN 0974-7907 (Online) | ISSN 0974-7893 (Print) 

doi: https://doi.org/10.11609/jott.5419.12.3.15355-15358

#5419 | Received 19 September 2019 | Final received 01 February 2020 | Finally accepted 07 February 2020

 

 

Sighting of Petaurista petaurista (Pallas, 1766) (Mammalia: Rodentia: Sciuridae) on limestone hills in Merapoh, Malaysia

 

Priscillia Miard 1, Mohd Nur Arifuddin 2, Izereen Mukri 3, Siti Syuhada Sapno 4, Hafiz Yazid 5, Nadine Ruppert 6  & Jayaraj Vijaya Kumaran 7

 

1,6 School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia.

2,5,7 Faculty of Earth Science, Universiti Malaysia Kelantan, UMK Jeli Campus, Locked Bag 100, 17600 Jeli, Kelantan, Malaysia.

2,3,5,7 Conservation & Research Program, Malayan Rainforest Station, 27210 Kuala Lipis, Pahang, Malaysia.

4 Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.

7 Institute of Tropical Biodiversity and Sustainable Development, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia.

Institute of Food Security and Sustainable Agriculture, Universiti Malaysia Kelantan, UMK Jeli Campus, 17600 Jeli, Kelantan, Malaysia.

1 priscillia.miard@gmail.com, 2 mohdnurarifuddin@gmail.com, 3 izereenmukri@gmail.com, 4 syuhadasapno@gmail.com,

5 muhammadhafizyazid@gmail.com, 6  n.ruppert@usm.my (corresponding author), 7 jayaraj@umk.edu.my

 

 

Abstract: Flying squirrels are poorly studied nocturnal mammals as their elusive and nocturnal behaviour makes it hard to observe them in the wild.  Here, we describe sightings of Petaurista petaurista on a limestone hill and its foot at Merapoh, Pahang, Malaysia.  This is the first report as the species is usually known to inhabit forest habitat.  We observed the first squirrel resting on a steep limestone wall at night.  During subsequent nights, three individuals were observed feeding on Ficus hispida and Terminalia catappa fruits on the foot of the hill in nearby trees.  These sightings suggest that P. petaurista may use limestone hill habitat.

 

Keywords: Ecology, flying squirrels, limestone, nocturnal.

 

 

Editor: H.N. Kumara, SACON, Coimbatore, India. Date of publication: 26 February 2020 (online & print)

 

Citation: Miard, P., M.N. Arifuddin, I. Mukri, S.S. Sapno, H. Yazid, N. Ruppert & J.V. Kumaran (2020). Sighting of Petaurista petaurista (Pallas, 1766) (Mammalia: Rodentia: Sciuridae) on limestone hills in Merapoh, Malaysia.  Journal of Threatened Taxa 12(3): 15355–15358. https://doi.org/10.11609/jott.5419.12.3.15355-15358

 

Copyright: © Miard et al.  2020. Creative Commons Attribution 4.0 International License.  JoTT allows unrestricted use, reproduction, and distribution of this article in any medium by providing adequate credit to the author(s) and the source of publication.

 

Funding: This study was funded by the Mohamed bin Zayed Species Conservation Fund, Disney Conservation Fund, The Habitat Foundation, The Rufford Foundation, and the Malaysian Nature Society’s Young Environmental Research Grant (YERG).

 

Competing interests: The authors declare no competing interests.

 

Acknowledgements: The authors would like to thank the Department of Wildlife and National Parks Peninsular Malaysia (PERHILITAN) for approval of permits to conduct this study (Permit number P-00251-16-19 and D-01052-16-19) and the Forestry Department of Peninsular Malaysia (FDPM) for allowing forest access. We would also like to express our gratitude to Mr. Zainal and Mrs. Zah for facilitating access to the sampling site, their kind hospitality and friendship during our expedition. We would also like to extend our appreciation to our field guide Mr. Mayam for his assistance given during the night survey. All contributions from project personnel including the staff, interns and volunteers of the Malayan Rainforest Station are greatly appreciated. The UMK team would like to acknowledge The Mohamed bin Zayed Species Conservation Fund, The Rufford Foundation Grant and The Young Environmental Research Grant (YERG) awarded to Dr Jayaraj Vijaya Kumaran and Mr Mohamad Nur Arifuddin bin Mad Yusof, and the administrative support given by the Faculty of Earth Science, Universiti Malaysia Kelantan. The USM team would like to thank their funders, The Habitat Foundation and Disney Conservation Fund awarded through the Malaysian Primatological Society. The Malayan Rainforest Station team would express their gratitude for the support and funding given by the management of Fuze Ecoteer Sdn. Bhd.

 

 

 

Flying squirrels (hereafter referred to as gliding squirrels) are a group of understudied rodents in the family Sciuridae (Thorington et al. 2012) that belong to 15 different genera in two subtribes—(i) subtribe Glaucomyina: Eoglaucomys, Glaucomys, Hylopetes, Iomys, Petaurillus, Petinomys; (ii) subtribe Peromyina: Aeretes, Aeromys, Belomys, Biswamoyopterus, Eupetaurus, Petaurista, Pteromys, Ptermyscus, Trogopterus (Thorington & Hoffmann 2005).  They are primarily nocturnal mammals with varying body sizes from small (80–225 mm head to anus length) to large (520–338 mm; Francis 2008).  They are popularly known as “flying squirrels” (Prater 2005) because they have a “flying membrane” or patagium that spreads between their extremities to glide between their extremities that enables them to glide over long distances (ca. 90m) between tress.

The Red Giant Gliding Squirrel Petaurista petaurista has a wide range from Afghanistan to Borneo (Thorington et al. 2012).  There are known subspecies within this geographical range, including those described in southeastern Asia (Corbet & Hill 1992; Silva & Downing 1995; Thorington & Hoffmann 2005; Sanamxay et al. 2015).  Petaurista petaurista is known to occur in wet tropical lowlands, mountainous temperate forests, coniferous forests, evergreen broadleaf forests, hardwood forests, plantations, and orchards (Molur et al. 2005; Thorington et al. 2012; Smith & Xie 2013).  They are predominantly herbivores, feeding on leaves, flowers, and fruits (Muul & Lim 1978; Kuo & Lee 2003).  During the day, these squirrels usually stay in their nest in tree cavities (Muul & Lim 1978; Lee et al. 1993) or in epiphytes such as the bird’s nest fern; Asplenium nidus (P. Miard pers. obs.).  Petaurista petaurista is listed as Least Concern in the IUCN Red List due to their broad geographic range (Duckworth 2016).  This paper reports the first sighting of the little studied P. petaurista from limestone hills in Merapoh, Pahang, Malaysia.

 

Materials and Methods

Study site

The survey area consists of mixed fruit orchards that fringe forested areas within the Merapoh District of Pahang, peninsular Malaysia (4.6960N, 102.0000E).  These orchards are planted primarily with durian Durio spp., Rambutan Nephelium lappaceum, Cocoa Theobroma cacao, and other native trees such as figs Ficus variegata that also grow in the area naturally.  The small township of Merapoh is surrounded by forested areas, including the virgin primary lowland rainforest of Taman Negara Pahang national park at Sungai Relau and several other production forest reserves (i.e., Sungai Yu Forest Reserve, Tanum Forest Reserve, and Persit Forest Reserve), which are situated nearby.

The unique landscape of this area comprises more than 85 characteristic limestone hills and numerous caves, which have been estimated to be between 230 million and 350 million years old (UNESCO 2014; Joeharry et al. 2018).  The primary forest covers an area of ca. 4,343km2 and is estimated to be 130 million years old, making it one of the oldest rainforests in the world (UNESCO 2007).  The fauna and flora of the area is diverse with charismatic megafauna such as the Malayan Tiger Panthera tigris jacksoni (Kawanishi & Sunquist 2004), Leopard Panthera pardus (Asrulsani et al. 2017), Asian Elephant Elephas maximus (Kawanishi et al. 2003), Malayan Tapir Tapirus indicus (Kawanishi et al. 2003), Malayan Sun Bear Helarctos malayanus (Kawanishi & Sunquist 2008), Barking Deer Muntiacus muntjac (Kawanishi et al. 2003), Sambar Deer Rusa unicolor (Kawanishi et al. 2003), and Serow Capricornis sumatrensis (I. Mukri pers. obs.).  Over 250 species of birds, including 69 threatened species, have been recorded within Taman Negara Pahang and Merapoh (BirdLife International 2019).

The biodiversity of limestone hills is often understudied due to the difficulty to access the caves and forests on the top (Clements et al. 2006).  The area around Merapoh Town is mostly used for farming, orchards and rubber plantations (Milow et al. 2010).  The Merapoh Caves have been intensively surveyed for fossils (Baad 2017).  One of the caves called Gua Seribu Cerita contains ancient drawings on the walls suggesting its use by prehistoric peoples (Baad 2017).

 

Survey method

The survey was conducted for three nights (8–10 December 2018) from 21.00 to 01.00 h along an existing 2km long forest trail and also in an orchard nearby.  The trail and the orchard were surveyed on foot by a team of 2–5 people, and animals were sighted using a head torch with a red filter (Clulite HL13).  Nocturnal mammals have a bright reflective eye layer, the tapetum lucidum, allowing observers to detect them by eye shine.  Sighted mammals were photographed whenever possible for species identification, and data on location, tree species, tree height, and estimated height of sighted mammals in the tree were recorded.

 

Results

We observed one Red Giant Gliding Squirrel P. petaurista directly on a steep limestone hill wall approximately 70m above ground on 8 December 2018 at 22.56h.  The individual was resting while occasionally moving its head (Image 1).

During subsequent visits, we recorded two more squirrels (at 00.40h) on 9 December 2018, and one (at 01.12h) on 10 December 2018.  The two individuals were feeding on a Ficus hispida, known as Hairy Fig (or locally Ara Bumbong, Senia; Aziz et al. 2014) at a height of ca. 20m, while one individual was feeding on Terminalia catappa, known as Tropical Almond (family Combretaceae; Nwosu et al. 2008).

The aerial image (Image 2) shows that these trees are growing just by the foothills making it accessible for wildlife to connect from the forest habitat to the limestones.

 

Discussion

The taxonomy of Petaurista spp. is still under debate (Sanamxay et al. 2015).  The subspecies observed in Merapoh, however, might be P. petaurista melanotus according to its location (Corbet & Hill 1992).  Generally, gliding squirrels use different types of nests such as tree cavities or leaf nests, while subterranean nests are the least common (Holloway & Malcolm 2007; Diggins et al. 2015).  Petaurista petaurista is known to nest in tree holes that are usually 10–35 m high (Krishna et al. 2019) but also in epiphytes such as bird’s nest ferns (Asplenium nidus; P. Miard pers. obs. 2017).

Although P. petaurista is an extremely agile glider (Krishna et al. 2016), it can also easily climb steep slopes (Scholey 1986).  Muul & Lim (1978) sighted Petaurista sp. gliding from a limestone hill to trees 300m in distance and 125m down (Thorington & Heaney 1981).  Hence, the sightings reported here could indicate that P. petaurista may be using these hills more frequently.

The use of limestone hills has also been observed in the Woolly Gliding Squirrel Eupetaurus cinereus.  Their habitat is described as mountainous conifer forest associated with steep slopes and caves (Zahler 2010).

Use of mineral licks by gliding squirrels has rarely been observed but has been reported from China where up to 20 individuals per night at one mineral lick spot (Xian & Harding 2013).  Our sightings may indicate that P. petaurista may also use limestone hill habitat as a possible source of minerals by licking its surface and/ or as a shelter in its cavities, and further research on the ecology and behaviour of this elusive species is needed to draw a more comprehensive picture on limestone use behaviour.

 

 

For images - - click here

 

 

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