Public attention was aroused in 1989 to a world-wide phenomena involving the decline of frog species. Since then herpetologists around the world have begun to document the nature and scope of these declines. In Australia, two frog species (Rheobatrachus silus and Taudactylus diurnis) appear to have become recently extinct, other two may be facing imminent extinction (Taudactylus eungellensis, Taudactylus rheophilus) while a number of other species (including Litoria castanea, Litoria nyakalensis and Rheobatrachtus vittelinus) appear likely to become extinct in the near future In addition, various frog populations are facing local extinctions within substantial parts of their range The pattern of frog disappearances in Australia is discussed along with some of the suggested causes for these declines. Actions implemented in Australia and elsewhere to deal with declining frog species are reviewed. Developments in the management of me endangered frog species, the Green and Golden Bell Frog Litoria aurea in New South Wales are referred to.

Baard, E. H. W., 1989. The status of some rare and endangered endemic reptiles and amphibians of the southwestern Cape province, South Africa. Biol. Conserv. 49: 161-68.
The status of some rare and endangered endemic reptiles and amphibians of the southwestern Cape province, South Africa
Biol. Conserv.
, vol. 
49
 (pg. 
161
-
68
)
Baringa, M., 1990. Where have all the froggies gone? Science 247: 1033-034.
Where have all the froggies gone?
Science
, vol. 
247
 (pg. 
1033
-
034
)
Beebee, T. J. C., Flower, R. J., Stevenson, A. C., Patrick, S. T., Appleby, P. G., Fletcher, C., Marsh, C., Natanski, J., Rippey, B. and Battarbee, R. W., 1990. decline of the nattejack toad Bufo calamita in Britain: palaeoecological, documentary and experimental evidence for breeding site acidification. Biol. Conserv. 53: 1-20.
decline of the nattejack toad Bufo calamita in Britain: palaeoecological, documentary and experimental evidence for breeding site acidification
Biol. Conserv.
, vol. 
53
 (pg. 
1
-
20
)
Berger, L., 1989. Disappearance of amphibian larvae in the agricultural landscape. Ecol. Internat. Bull. 17: 65-73.
Disappearance of amphibian larvae in the agricultural landscape
Ecol. Internat. Bull.
, vol. 
17
 (pg. 
65
-
73
)
Blaustein, A. R. and Wake, D. B., 1990. Declining amphibian populations: a global phenomenon? Trends Ecol. Evol. 5: 203-04.
Declining amphibian populations: a global phenomenon?
Trends Ecol. Evol.
, vol. 
5
 (pg. 
203
-
04
)
Cogger, H., 1992. Reptiles and Amphibians of Australia. 4th ed. Reed Books Sydney.
Reptiles and Amphibians of Australia
Clark, K. L. and Hall, R. J., 1985. Effects of elevated hydrogen ion and aluminium concentration on the survival of amphibians embryos and larvae. Canadian J. Zool. 63: 116-23.
Effects of elevated hydrogen ion and aluminium concentration on the survival of amphibians embryos and larvae
Canadian J. Zool.
, vol. 
63
 (pg. 
116
-
23
)
Corn, P. S. and Fogleman, J. C., 1984. Extinction of montaine populations of the northern leopard frog (Rana pipiens) in Colorado. J. Herpetol. 18: 147-52.
Extinction of montaine populations of the northern leopard frog (Rana pipiens) in Colorado
J. Herpetol.
, vol. 
18
 (pg. 
147
-
52
)
Cribb, J., 1993. Scientific leapfrogs. Report from the annual conference of the Australian and New Zealand Association for the Advancement of Science. The Australian 9th Oct. 1993: 46.
Scientific leapfrogs. Report from the annual conference of the Australian and New Zealand Association for the Advancement of Science
The Australian 9th Oct.
, vol. 
1993
 pg. 
46
 
Crump, M. L., Hensley, F. R. and Clark, K. L., 1992. Apparent decline in the golden toad: underground or extinct? Copeia 1992: 413-20.
Apparent decline in the golden toad: underground or extinct?
Copeia
, vol. 
1992
 (pg. 
413
-
20
)
Czechura, G. V., 1991. The Blackall-Conondale Ranges: frogs, reptiles and fauna conservation. Pp. 311-24 in The Rainforest Legacy, Auctralian Rainforest Study, Vol 2. Special Heritage Publication Series, Aust. Govt. Printing Service: Canberra.
The Rainforest Legacy, Auctralian Rainforest Study, Vol 2
(pg. 
311
-
24
)
Czechura, G. V. and Ingram, G. J., 1990. Taudactylus diurnis and the case of the disappearing frogs. Mem. Qld. Mus. 29: 361-65.
Taudactylus diurnis and the case of the disappearing frogs
Mem. Qld. Mus.
, vol. 
29
 (pg. 
361
-
65
)
Dial, N. A., 1976. Methylmercury: teramgenic and lethal effects in frog embryos. Teratology 13: 327-34.
Methylmercury: teramgenic and lethal effects in frog embryos
Teratology
, vol. 
13
 (pg. 
327
-
34
)
Duellman, W. E. and Trueb, L., 1986. Biology of Amphibians. McGraw Hill Book Co.: New York.
Biology of Amphibians
Dunson, W. A., Wyman, R. L. and Corbette, E. S., 1992. A symposium on amphibian declines and habitat acidification. J. Herpetol. 26: 349-52.
A symposium on amphibian declines and habitat acidification
J. Herpetol.
, vol. 
26
 (pg. 
349
-
52
)
Enge, K. M. and Marion, W. R., 1986. Effect of clear-cutting and site preparation on herpetofauna of North American flatwoods. Forest Ecol. Manage. 14: 177-92.
Effect of clear-cutting and site preparation on herpetofauna of North American flatwoods
Forest Ecol. Manage.
, vol. 
14
 (pg. 
177
-
92
)
Ferraro, T. J. and Burgin, S., 1993a. Review of environmental factors influencing the decline of Australian frogs. Pp. 205-18 in Herpetology in Australia a Diverse Discipline ed by D. Lunney and D. Ayers. Royal Zoological Society of New South Wales: Mosman.
Herpetology in Australia a Diverse Discipline
(pg. 
205
-
18
)
Ferraro, T. J. and Burgin, S., 1993b. Amphibian decline: a case study in western Sydney. Pp. 197-204 in Herpetology in Australia: A Diverse Discipline ed by D. Lunney and D. Ayers. Royal Zoological Society of New South Wales: Mosman.
Herpetology in Australia: A Diverse Discipline
(pg. 
197
-
204
)
Freda, J., 1986. The influence of acidic pand water on amphibians: a review. Water, Air and Soil Pollution 30: 439-50.
The influence of acidic pand water on amphibians: a review
Water, Air and Soil Pollution
, vol. 
30
 (pg. 
439
-
50
)
Freda, J. and McDonald, L., 1990. The effects of aluminium on the leopard frog, Rana pipens: Life stage comparisons and aluminium uptake. Canadian J. Fish Aquatic Sci. 47: 210-16.
The effects of aluminium on the leopard frog, Rana pipens: Life stage comparisons and aluminium uptake
Canadian J. Fish Aquatic Sci.
, vol. 
47
 (pg. 
210
-
16
)
Ghate, H. V. and Mulherlar, L., 1980. Effect of mercuric chloride on embryonic development of the frog Microhyla ornata. Indian J. Exp. Biol. 18: 1094-096.
Effect of mercuric chloride on embryonic development of the frog Microhyla ornata
Indian J. Exp. Biol.
, vol. 
18
 (pg. 
1094
-
096
)
Greer, A. E., 1993. Faunal Impact Statement for proposed development Works at Homebush Bay Brick Pit.
Hayes, M. P. and Jennings, M. R., 1986. Decline of ranid frog species in western North America: are bullfrogs (Rana catesbiana) responsible? J. Herpetol. 20: 490-509.
Decline of ranid frog species in western North America: are bullfrogs (Rana catesbiana) responsible?
J. Herpetol.
, vol. 
20
 (pg. 
490
-
509
)
Hayes, M. P. and Jennings, M. R., 1988. Habitat correlates of distribution of the Californian red-legged frog (Rana aurora draytonii) and the foothill yellow-legged frog (Rana boylii): implications for management. Pp. 144-58 in Management of Amphibians, Reptiles and Small Mammals in North America ed by C. S. Szaro, K. E. Severson and D. R. Patton. General Technical Report RM-166, U.S. Dept. of Agricult. Forest Service.
Hedges, S. B., 1993. Global amphibian dedines: a perspective from the Caribbean. Conserv. 2: 290-303.
Global amphibian dedines: a perspective from the Caribbean
Conserv.
, vol. 
2
 (pg. 
290
-
303
)
Hero, J. M., 1991. A froggy forecast. Wild. Aust. 28: 14-15.
A froggy forecast
Wild. Aust.
, vol. 
28
 (pg. 
14
-
15
)
Heyer, R. L., Rand, A. S., da Cruz, C. A. G. and Peixoto, O. L., 1988. Decimations, extinctions and colonizations of frog populations in south-east Brazil and their evolutionary implications. Biotropica 20: 230-35.
Decimations, extinctions and colonizations of frog populations in south-east Brazil and their evolutionary implications
Biotropica
, vol. 
20
 (pg. 
230
-
35
)
Honneggar, R. E., 1981. Threatened Amphibians and Reptiles in Europe. Akademische Verlagsesellschraft Weidbaden. Pp. 3-39.
Ingram, G. J. and McDonald, K. R., 1993. An update on the decline of Queensland's frogs. Pp. 297-303 in Herpetology in Australia: a Diverse Discipline, ed by D. Lunney and D. Ayers. Trans. Royal. Zool. Soc. New South Wales.
Herpetology in Australia: a Diverse Discipline
(pg. 
297
-
303
)
Lunney, D., 1992. (ed). Communication skills and the debate on Conserving Biodiversity. Aust. Zool. 28: 1-122.
Communication skills and the debate on Conserving Biodiversity
Aust. Zool.
, vol. 
28
 (pg. 
1
-
122
)
Lunney, D. and Ayers, D., 1993. (eds). Herpetology in Australia: a Diverse Discipline. Trans. Royal. Zool. Soc. New South Wales: Mosman.
Herpetology in Australia: a Diverse Discipline
Lunney, D. and Ayers, D., 1993. The official status of frogs and reptiles in New South Wales. Pp. 404-08 in Herpetolgy in Australia: a Diverse Discipline ed by D. Lunney and D. Ayers. Trans. Royal. Zool. Soc. New South Wales: Mosman.
Herpetolgy in Australia: a Diverse Discipline
(pg. 
404
-
08
)
Lunney D., Hand, S., Reed, P. and Butcher, D., 1994. (eds) Future of the Fauna of Western New South Wales. Trans. Royal Zool. Soc. New South Wales.
Martin, G., 1990. A froggy bottom. Discover 1990 (May): 36-37.
A froggy bottom
Discover
, vol. 
1990
 (pg. 
36
-
37
)
McDonald, K. R., 1990. Rheobatrachus Liem and Taudactylus Strahan and Lee (Anura: Leptodactylidae) in Eungella National Park, Queensland. Trans. Roy. Soc Sth. Aust. 114: 187-94.
Rheobatrachus Liem and Taudactylus Strahan and Lee (Anura: Leptodactylidae) in Eungella National Park, Queensland
Trans. Roy. Soc Sth. Aust.
, vol. 
114
 (pg. 
187
-
94
)
Mossman, M. J., Huff, J. J. and Hine. R. M., 1992. Monitoring long-term trends in Wisconsin frog and toad populations. Wisconsin Dept. Nat. Resources.
Nichols, O. G. and Barnford, M. J., 1985. Reptile and frog utilization of rehabilitated bauxite mine sites and dieback-affecred sites in Western Australia's jarrah Eucalyptus marginata forest. Biol. Conserv. 34: 227-49.
Reptile and frog utilization of rehabilitated bauxite mine sites and dieback-affecred sites in Western Australia's jarrah Eucalyptus marginata forest
Biol. Conserv.
, vol. 
34
 (pg. 
227
-
49
)
Osborne, W. S., 1989. Distribution, relative abundance and conservation status of Corroboree frogs. Pseudophryne corroboree Moore (Anura: Myobatrachidae). Aust. Wildl. Res. 16: 537-47.
Distribution, relative abundance and conservation status of Corroboree frogs. Pseudophryne corroboree Moore (Anura: Myobatrachidae)
Aust. Wildl. Res.
, vol. 
16
 (pg. 
537
-
47
)
Osborne, W. S., 1990. Declining frog populations and extinctions in the Canberra region. Bogong 11: 4-7.
Declining frog populations and extinctions in the Canberra region
Bogong
, vol. 
11
 (pg. 
4
-
7
)
Osborne, W. S., 1992. Declines and extinctions in populations of frogs in the Australian Capital Territory: a discussion paper. ACT Parks and Conservation Service Internal Report 9218.
Pechmann, J. H. K. and Wilbur, H. M., 1994. Putting declining amphibian populations in perspective: natural fluctuations and human impacts. Herpetologica 50: 65-84.
Putting declining amphibian populations in perspective: natural fluctuations and human impacts
Herpetologica
, vol. 
50
 (pg. 
65
-
84
)
Phillips, K., 1990. Where have all the frogs and toads gone? BioSciece 40: 422-24.
Where have all the frogs and toads gone?
BioSciece
, vol. 
40
 (pg. 
422
-
24
)
Pierce, B. A., 1985. Acid tolerance in amphibians. BioScience 35: 239-43.
Acid tolerance in amphibians
BioScience
, vol. 
35
 (pg. 
239
-
43
)
Plowman, K., 1991. Amphibious, feathered and other vertebrates. Pp. 91-98 in The Brisbane River: A Source Book for the Future ed by P. Davie, E. Stwk and D. Choy. Aust. Littoral Society: Brisbane.
The Brisbane River: A Source Book for the Future
(pg. 
91
-
98
)
Richards, S. J., McDonald, K. and Alford, R., 1993. Declines in populations of Australia's endemic tropical rainforest frogs. Poc. Cons. Biol. 1: 66-77.
Declines in populations of Australia's endemic tropical rainforest frogs
Poc. Cons. Biol.
, vol. 
1
 (pg. 
66
-
77
)
Semb-Johansson, A., 1992. Declining populations of the common toad (Bufo bufo L.) on two islands inoslofjord Norway. Amphibia-Reptilia 13: 409-12.
Declining populations of the common toad (Bufo bufo L.) on two islands inoslofjord Norway
Amphibia-Reptilia
, vol. 
13
 (pg. 
409
-
12
)
Sjogren, P., 1991. Extinction and isolation gradients in metapopulations: the case of rhe pool frog (Rana lessonae). Biol. J. Linn Soc. 42: 135-47.
Extinction and isolation gradients in metapopulations: the case of rhe pool frog (Rana lessonae)
Biol. J. Linn Soc.
, vol. 
42
 (pg. 
135
-
47
)
Speare, R. and Smith, J. R., 1992. An iridivirus-like agent isolated from the ornate burrowing frog Limnodynastes ornatus in northern Australia. Diseases Aquatic Orgs. 14: 51-57.
An iridivirus-like agent isolated from the ornate burrowing frog Limnodynastes ornatus in northern Australia
Diseases Aquatic Orgs
, vol. 
14
 (pg. 
51
-
57
)
Speare, R., Field, K., Koehler, J. and McDonald, K. R., 1994. “Disapperaing” Australian rainforest frogs: have we found the answer? Second World Congress of Herpetology: Adelaide.
“Disapperaing” Australian rainforest frogs: have we found the answer?
Thomson, J. M., 1978. Vertebrates of the Brisbane River Valley. Proc. Roy. Soc. Qld 89: 121-28.
Vertebrates of the Brisbane River Valley
Proc. Roy. Soc. Qld
, vol. 
89
 (pg. 
121
-
28
)
Trenerry, M. P., Laurance, W. F. and McDonald, K. R., 1994. Further evidence for the precipitous decline of endemic rainforest frogs in tropical Australia. Pac. Conserv. Biol. 1: 150-53.
Further evidence for the precipitous decline of endemic rainforest frogs in tropical Australia
Pac. Conserv. Biol.
, vol. 
1
 (pg. 
150
-
53
)
Tyler, M. J., 1989. Australian frogs. Viking O'Neil: South Yarra, Victoria.
Australian frogs
Tyler, M. J., 1991. Our vanishing frogs. Habitat 19: 20-25.
Our vanishing frogs
Habitat
, vol. 
19
 (pg. 
20
-
25
)
Tyler, M. J., 1992. Encyclopedia of Australian Animals. Frogs. Australian Museum/Angus and Robertson: Sydney.
Encyclopedia of Australian Animals. Frogs
Tyler, M. J., 1993a. Preparation of the Australian Action Plan. Pp. 229-31 in Herpetlogy in Australia: a Diverse Discipline ed by D. Lunney and D. Ayers. Royal. Zool. Soc. New South Wales: Mosman
Herpetlogy in Australia: a Diverse Discipline
(pg. 
229
-
31
)
Tyler, M. J., 1993b. Frogwatch: to shun a silent spring. Aust. Nat. Hist. 24: 22-29.
Frogwatch: to shun a silent spring
Aust. Nat. Hist.
, vol. 
24
 (pg. 
22
-
29
)
Tyler, M. J., Watson, G. F., Davies, M. and Crook, G. A., 1981. Fmgs as environmental monitoring organisms. Part B: Embryological and developmental studies (final report). Open File Record 19. Supervising Scientist for the Alligator Rivers region, Northern Territory. Pp. 10-18.
Tyler, M. J. and Davies, M., 1985. The gastric brooding frog Rheobatrachus silus. Pp. 469-76 in The Biology of Australian Frogs and Reptila ed by G. C. Grigg, R. Shine and H. Ehmann. Surrey Beatty & Sons/Royal Zool. Soc. New South Wales: Sydney.
The Biology of Australian Frogs and Reptila
(pg. 
469
-
76
)
White, A. W., 1993. Faunal Impact Statement: Proposed Development of Telecom Site at Roberts Road, Greenacre.
White, A. W., 1995. Green and Golden Bell Frogs. Frog Facts No. 5. New South Wales Frog and Tadpole Study Group Inc.
Wilson, E. O. and Peter, F. M., (eds) 1988. Biodiversity. National Academy Press: Washington, D.C.
Biodiversity
Wissinger, S. A. and Whiteman, H. H., 1992. Fluctuations in a Rocky Mountain population of salamanders: anthropogenic acidification or natural variation? J. Herpetol. 26: 377-91.
Fluctuations in a Rocky Mountain population of salamanders: anthropogenic acidification or natural variation?
J. Herpetol.
, vol. 
26
 (pg. 
377
-
91
)
Yoon, C. K., 1994. UV rise has frogs croaking. Sydney Morning Herald 10 March 1994. P.9.
UV rise has frogs croaking
Sydney Morning Herald
pg. 
9
 
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