proposed management plan for philippine squirrels

8/13/2019 Proposed Management Plan for Philippine Squirrels

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Talusan, Eugene Paul E.


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The Philippines Considered to be the

hottest of hotspots onbiodiversity

One of the top 17biologically wealthiestcountries in the world

Archipelago of 7,100islands

Rugged terrain, volcanosand islands Rich in species diversity Many endemic species


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Based on faunalassemblage andshallow landconnections

1.Greater Luzon2. Greater Mindoro3. Greater Palawan

4. Greater Mindanao5. Greater Negros-Panay6. Greater Sulu


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One of the majororders of mammals inthe Philippines

Three families in thePhilippines Muridae (murids)

Hystricidae (porcupines)

Sciuridae (squirrels)Sciuridae is least

studied


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Squirrels and allies

Bushy tails

Large eyes

Shiny coats

Herbivorous

Generally arboreal


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13 species 9 tree squirrels under

the genus Sundasciurus

3 flying squirrels 1 pygmy squirrel Found only in Palawan

and Mindanao faunalregions

Bisingin Palawan Kaokagin Mindanao


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The objectives of this study are to:

1. gather secondary information on

Philippine squirrels and management plans

of squirrels in other countries; and

2. to propose a management plan

based on the information gathered.


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Kingdom: AnimaliaPhylum: Chordata

Class: MammaliaOrder: Rodentia

Family: SciuridaeGenus: Exilisciurus

Species: E. concinnus


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Dense and soft fur

that is dark brown with

a reddish tint

Heavily

furred and

slightly

bushy tail


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Mindanao faunal regionincluding Mindanao,Basilan, Biliran, Bohol,Dinagat, Leyte, Samar,

and Siargao Islands Lowland and montane

primary and secondaryforests from sea level to2000m

Small clearings in middleelevations Least concern


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Family: SciuridaeGenus: Hylopetes

Species: H. nigripes


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Thick andwoolly

greyish

brown fur

Long and

thickly

clothed tail


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Palawan faunalregion includingBancalan andPalawan islands

Primary andsecondary lowlandforests

Nest in cavities in

large treesWidespread,

moderately commonNear threatened


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Family: SciuridaeGenus: PetinomysSpecies: P. crinitus


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Chestnut

upperpartsfinely mixed

with black

Very small

ears with

three long

tufts of hair


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Mindanao faunal

region including

Basilan island

Primary lowland

forests at middle

elevation

Moderatelycommon

Least concern


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Family: SciuridaeGenus: Petinomys

Species: P. mindanensis


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Externally resembles P. crinitus but much

larger and darker

Very small ears that are brownish at the

tips

prominent roughly crescent-shaped

blackish collar extending from behind the

ears to the back of the neck


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Mindanao faunal

region including

Dinagat, Siargao,

and MindanaoIslands

Primary lowland to

montane forests atmiddle elevations

Least concern


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Family: SciuridaeGenus: Sundasciurus

Species: S. davensis


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Buffy cheeks

Apricot buff underparts

broad line from the nose between the eyes

and ears that is Hays russet in color clearer in the face to between the eyes and a little

darker in the face


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Madaum, Tagum

Municipality, Davao

province

Primary and lowland

secondary forests

Data deficient


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Species: S. hoogstraali


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black hairs with white tips on the posterior

two-thirds of its tail

clay color and tawny olive sides

grayish face

dark brown hands and feet

lighter underparts with many long gray-

white hairs


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Palawan faunal

region including the

island of Busuanga

Primary andsecondary lowland

forests

Locally commonLeast concern


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Species: S.juvencus


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Black-

tipped tail

Greyish sides


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Palawan faunal

region

Primary and

secondary lowlandforests

Locally common,

stable


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Family: SciuridaeGenus: SundasciurusSpecies: S. mindanensis


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short andrather stiff fur

Grayish

white

underparts

blackish

upper parts

variegated or

grizzled with

light yellowishbrown


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Mindanao faunal

region


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Species: S. moellendorffi


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white hair mixed on the sides of its body as

well as on its shoulder regions

a white area on its belly extending to the

underside of the base of its tail


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Palawan faunal

region

Primary and

secondary lowlandforests and coconut

groves

Locally abundant


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Species: S.philippinensis


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Upperparts with

a deep brown

hueNot very

bushy tail

Grayish

forelegs


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Mindanao faunal region

Primary and secondary

lowland and montane

forests from near sealevel to at least 2100 m

Most abundant near

agricultural areas

Locally common in

forested regions


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Species: S. rabori


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Dense and

soft fur

agouti tail fur hairs

with three

alternating bandsof ochraceous

orange and black

tipped with pale

yellow orange


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Palawan faunal region

Mountains in Palawan

from 110 m to 1300 m

Moderately commonbut geographically

restricted

Probably confined to

upper elevation forests


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Kingdom: AnimaliaPhylum: ChordataClass: Mammalia

Order: Rodentia

Family: SciuridaeGenus: SundasciurusSpecies: S. samarensis


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has the same

general color above

and below as S.

mindanensisbutdiffers by being

larger in size and

having the upper

surface of its feet

gray


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Mindanao faunal

region

Samar and Leyte

islands


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Family: SciuridaeGenus: SundasciurusSpecies: S. steerii


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Small ears

rather small

tail that is

moreflattened

than bushy

grizzled,

reddish

chestnut brown

upper body

parts


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Palawan faunal

region

Lowland forests,

coconut groves, andbanana plantations

Common and stable


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Deforestation

Conversion of forest areas to agricultural

lands

Illegal trading and huntingRegarded as pests

Minimal impact on populations


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There are no conservation efforts made for

Philippine squirrels because they mostly

occur in protected areas

However, the main concern is that there isstill much to be studied about Philippine

squirrels (i.e. behavior and ecology)

There is a need for a survey of Philippinesquirrels (resource inventory)


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Resource inventory

Threat minimization


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Survey of Philippine squirrels where theyare recorded

Research on other important aspects (i.e.behavior and ecology)

Priority on data deficient and near

threatened species

Assessment for further steps or actions


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Prevention of further population decline

Habitat improvement and conservation

Rainforestation Control of logging and conversion of agricultural areas

Continuous implementation of protected areas where Phil.Squirrels occur

Implementation of law to illegal hunting and tradingacts


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Conservation International. 2008. Biological diversity in the Philippines. Retrieved from

http://www.eoearth.org/view/article/150648

Heaney, L.R. 1985. Systematics of Oriental Pygmy Squirrels of the Genera Exilisciurusand

Nannosciurus(Mammalia: Sciuridae). Misc. Publ. Mu. Zool. Univ. Michigan, 170:l-58. Retreived from:

http://deepblue.lib.umich.edu/bitstream/handle/2027.42/56414/MP170.pdf;jsessionid=63

555795A3324B99460756BAF0EFAD5F?sequence=1

Heaney, L.R. 1993. Biodiversity patterns and conservation of mammals in the Philippines. Asia Life Sciences

2(2): 261-274

Heaney, L.R., Balete, D.S., Dollar, M.L., Alcala, A.C., Dans, A.T.L., Gonzales, P.C., Ingle, N. R., Lepiten, M.V.,Oliver, W. L. R., Ong, P. S., Rickart, E.A., Tabaranza Jr., B.R. & Utzurrum, R.C.B. 1998. A synopsis of the

Mammalian Fauna of the Philippine Islands. Fieldiana: Zoology 88: 1-61

Hollister, N. 1911. A new Philippine flying squirrel. Proc. Biol. Soc. Washington, 24:185.

Retrieved from: http://www.biodiversitylibrary.org/page/3779520#page/215/mode/1up

Iucnredlist.org.

Rabor, D.S. 1939. Sciuropterus mindanensissp. nov., a new species of flying squirrel from

Mindanao. Philippine Jour. Sci., 69: p390

Sanborn, C.C. 1952. Philippine zoological expedition 1946-1947. Fieldiana: Zoology Vol 33:

Number 2, Chicago Natural History Museum Taylor, E.H. 1934. Philippine land mammals. Monographs of the Bureau of Science.

Manila:Bureau of Printing. p. 380

Thomas, O. 1893. Description of a new Sciuropterusfrom the Philippines Ann. Mag. Nat. Hist., ser. 6, p30.

Retrieved from: http://biodiversitylibrary.org/item/78509#page/44/mode/1up

Thomas, O. 1908. The genera and subgenera of the Sciuropterusgroup, with descriptions of three new species.

Ann. Mag. Nat. Hist., ser. 8, 1: p6. Retrieved from:

http://biodiversitylibrary.org/item/78381#page/15/mode/1up

Thorington Jr., & Ferell, K.E. 2006. Squirrels: the animal answer guide. USA: The John Hopkins University

Press. pp. 1-6.
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proposed management plan for philippine squirrels

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