Do fruit bats deserve to be listed as vermin in the Indian Wildlife (Protection) & Amended Acts? A critical review

Abstract Of the 13 species of fruit bats occurring in India, the Indian flying fox Pteropus giganteus, the dog-faced fruit bat Rousettus leschenaultii and the greater short-nosed fruit bat Cynopterus sphinx are distributed throughout the country. They usually live in trees (P. giganteus), temples and caves (R. leschenaultii) and foliage (C. sphinx) and feed on fruits such as fig Ficus spp., Singapore cherry Muntingia calabura, Indian almond Terminalia catappa, mango Mangifera indica, guava Psidium guajava as well as leaves, nectar and pollen. The other 10 species live at sea level and at altitudes of > 2,000 m and their distribution and foraging activities may be restricted mainly to forests. Two of them, the Nicobar flying fox Pteropus faunulus and Salim Ali's fruit bat Latidens salimalii are endemic. Although details of their foraging activity are poorly known, there is no evidence that they visit commercial fruit orchards. They feed on wild fruits and disperse seeds widely, contributing to forest regeneration. Although P. giganteus, R. leschenaultii and C. sphinx feed on commercial fruits, their role in pollination and seed dispersal of economically important plants such as kapok Ceiba pentandra, mahua Bassia latifolia and petai Parkia spp. is important. Sacrificial crops such as M. calabura can be used at orchards to reduce the damage bats cause to commercial fruit. Because the ecological services provided by bats are not appreciated by the public and conservation planners, all fruit bat species with one exception are still categorized as vermin and included as such in Schedule V of the Indian Wildlife (Protection) Act, 1972 and amended Acts. It is now appropriate for the Government of India to revisit this issue and consider removing these pollinators and seed dispersers from the list of vermin in the Wildlife (Protection) Act.

[1]  P. Racey,et al.  The pollination ecology of two species of Parkia (Mimosaceae) in southern Thailand , 2008, Journal of Tropical Ecology.

[2]  Robert Muscarella,et al.  The Role of Frugivorous Bats in Tropical Forest Succession , 2007, Biological reviews of the Cambridge Philosophical Society.

[3]  D. Janzen FOOD WEBS: WHO EATS \VHAT, WHY, HOW, AND WITH WHAT EFFECTS IN A TROPICAL FOREST? , 2007 .

[4]  N. Singaravelan,et al.  Muntingia calabura — an attractive food plant of Cynopterus sphinx —deserves planting to lessen orchard damage , 2006 .

[5]  G. Marimuthu,et al.  Bat pollination of kapok tree, Ceiba pentandra , 2005 .

[6]  R. Corlett Flower visitors and pollination in the Oriental (Indomalayan) Region , 2004, Biological reviews of the Cambridge Philosophical Society.

[7]  N. Singaravelan,et al.  Nectar Feeding and Pollen Carrying from Ceiba pentandra by Pteropodid Bats , 2004 .

[8]  I. Izhaki,et al.  The effect of bat (Rousettus aegyptiacus) dispersal on seed germination in eastern Mediterranean habitats , 1995, Oecologia.

[9]  P. Davidar,et al.  Pollination systems of trees in Kakachi, a mid-elevation wet evergreen forest in Western Ghats, India. , 2003, American journal of botany.

[10]  C. Srinivasulu,et al.  Greater Short-Nosed Fruit Bat (Cynopterus sphinx) Foraging and Damage in Vineyards in India , 2002 .

[11]  T. Smith,et al.  Closing the seed dispersal loop , 2002 .

[12]  P. Racey,et al.  A review of the global conservation status of bats , 2002, Oryx.

[13]  B. Law,et al.  Common blossom bats (Syconycteris australis) as pollinators in fragmented Australian tropical rainforest , 1999 .

[14]  J. Ronald,et al.  OCCURRENCE OF CYNOPTERUS BRACHYOTIS (CHIROPTERA : PTEROPODIDAE) IN KALAKADMUNDANTHURAI TIGER RESERVE, SOUTHERN INDIA , 1999 .

[15]  Richard Grimmett,et al.  Birds of the Indian Subcontinent , 1998 .

[16]  R. Corlett Frugivory and seed dispersal by vertebrates in the Oriental (Indomalayan) Region , 1998, Biological reviews of the Cambridge Philosophical Society.

[17]  S. Banack DIET SELECTION AND RESOURCE USE BY FLYING FOXES (GENUS PTEROPUS) , 1998 .

[18]  A. Verghese Non-destructive control of the bat, Cynopterus sphinx Vahl (Chiroptera: Pteropodidae) in grapes (Vitis vinifera Linnaeus) in India , 1998 .

[19]  T. Brown,et al.  The population genetic consequences of habitat fragmentation for plants. , 1996, Trends in ecology & evolution.

[20]  Theodore H. Fleming,et al.  Effects of Nectarivorous and Frugivorous Mammals on Reproductive Success of Plants , 1994 .

[21]  H. Keidar,et al.  Checklist of vertebrate damage to agriculture in Israel , 1993 .

[22]  T. Radhamani,et al.  Pollination by birds and bats , 1993 .

[23]  A. Estrada,et al.  Frugivory and seed dispersal: ecological and evolutionary aspects , 1993, Advances in vegetation science.

[24]  T. Elmqvist,et al.  Restricted pollination on Oceanic islands: pollination of Ceiba pentandra by flying foxes in Samoa , 1992 .

[25]  Paul A. Racey,et al.  Old world fruit bats : an action plan for their conservation , 1992 .

[26]  M. Fujita,et al.  Flying Foxes (Chiroptera: Pteropodidae): Threatened Animals of Key Ecological and Economic Importance , 1991 .

[27]  T. Elmqvist,et al.  Flying Foxes as Strong Interactors in South Pacific Island Ecosystems: A Conservation Hypothesis , 1991 .

[28]  Kamaljit S. Bawa,et al.  Plant-Pollinator Interactions in Tropical Rain Forests , 1990 .

[29]  F. Bonaccorso,et al.  FEEDING BEHAVIOUR AND FORAGING STRATEGIES OF CAPTIVE PHYLLOSTOMID FRUIT BATS: AN EXPERIMENTAL STUDY , 1987 .

[30]  G. Richards,et al.  Crop protection and management of flyingfoxes (Chiroptera: Pteropodidae). , 1987, Australian Mammalogy.

[31]  G. Sanewski,et al.  Flying-foxes (Chiroptera: Pteropodidae) as orchard pests. , 1987, Australian Mammalogy.

[32]  P. Charles-Dominique Inter-relations between frugivorous vertebrates and pioneer plants: Cecropia, birds and bats in French Guyana , 1986 .

[33]  A. Estrada,et al.  Frugivores and seed dispersal , 1986, Tasks for vegetation science.

[34]  A. Marshall Old World phytophagous bats (Megachiroptera) and their food plants: a survey , 1985 .

[35]  M. D. Loveless,et al.  ECOLOGICAL DETERMINANTS OF GENETIC STRUCTURE IN PLANT POPULATIONS , 1984 .

[36]  A. Marshall Bats, flowers and fruit: evolutionary relationships in the Old World , 1983 .

[37]  E. Gould Foraging Behavior of Malaysian Nectar-Feeding Bats , 1978 .

[38]  J. Nelson,et al.  Behaviour of Australian pteropodidae (Megachiroptera). , 1965, Animal behaviour.

[39]  A. Brosset The Bats of Central and Western India. Part Iv , 1962 .

[40]  L. Pijl,et al.  ECOLOGICAL ASPECTS OF FLOWER EVOLUTION. II. ZOOPHILOUS FLOWER CLASSES , 1961 .

[41]  L. Pijl ECOLOGICAL ASPECTS OF FLOWER EVOLUTION. I. PHYLETIC EVOLUTION , 1960 .

[42]  H. G. Baker,et al.  THE POLLINATION OF PARKIA BY BATS AND ITS ATTENDANT EVOLUTIONARY PROBLEMS , 1957 .

[43]  L. Pijl REMARKS ON POLLINATION BY BATS IN THE GENERA FREYCINETIA, DUABANGA AND HAPLOPHRAGMA, AND ON CHIROPTEROPHILY IN GENERAL , 1956 .

[44]  G. McCann On the Fertiliza Tion of the Flowers of the Sausage Tree (Kigelia Pinnata D.c.) by Bats , 1931 .