Australian Journal of Zoology Australian Journal of Zoology Society
Evolutionary, molecular and comparative zoology
RESEARCH ARTICLE

Variation in platypus (Ornithorhynchus anatinus) life-history attributes and population trajectories in urban streams

M. Serena A D , G. A. Williams A , A. R. Weeks B C and J. Griffiths C

A Australian Platypus Conservancy, PO Box 22, Wiseleigh, Vic. 3885, Australia.

B Department of Genetics, The University of Melbourne, Parkville, Vic. 3010, Australia.

C cesar, 293 Royal Parade, Parkville, Vic. 3052, Australia.

D Corresponding author. Email: platypus.apc@westnet.com.au

Australian Journal of Zoology 62(3) 223-234 http://dx.doi.org/10.1071/ZO13079
Submitted: 3 October 2013  Accepted: 18 May 2014   Published: 26 June 2014

Abstract

An understanding of animal population dynamics relies on identifying life-history attributes associated with population growth and determining how these are affected by environmental variables. We analysed platypus population processes over a 10-year period through mark–recapture studies conducted in three spatially independent stream systems located in the suburbs of Melbourne, Australia. The three populations were collectively characterised by a slightly male-biased adult sex ratio (1.15 : 1) and relatively low reproductive success (<0.5 juvenile captured annually per adult female). An estimated 16% of core residents disappeared annually and 18% of marked juveniles were recaptured as adults. However, some demographic parameters (reproductive success, frequency of non-core adult captures) varied significantly among populations. Estimates of annual core population size in the three systems varied asynchronously, with different trajectories in population size potentially reflecting habitat differences (amount of urban development, reliability of surface flow) as well as variation in spatial isolation and catchment history (implementation of stream rehabilitation programs, occurrence of severe floods). Across all three populations, significant variability in annual reproductive success was explained by linear relationships with the amount of rainfall recorded in the five months before breeding (positive) and after juveniles emerge from nesting burrows (negative).

Graphical Abstract Image

Additional keywords: fast–slow continuum, MNA population index, monotreme, platypus conservation requirements, urban stormwater drainage.


References

Angerbjörn, A., Arvidson, B., Norén, E., and Strömgren, L. (1991). The effect of winter food on reproduction in the arctic fox, Alopex lagopus: a field experiment. Journal of Animal Ecology 60, 705–714.
The effect of winter food on reproduction in the arctic fox, Alopex lagopus: a field experiment.CrossRef | open url image1

Bethge, P., Munks, S., Otley, H., and Nicol, S. (2003). Diving behaviour, dive cycles and aerobic dive limit in the platypus Ornithorhynchus anatinus. Comparative Biochemistry and Physiology Part A 136, 799–809.
Diving behaviour, dive cycles and aerobic dive limit in the platypus Ornithorhynchus anatinus.CrossRef | open url image1

Bielby, J., Mace, G. M., Bininda-Edmonds, O. R. P., Cadillo, M., Gittleman, J. L., Jones, K. E., Orme, C. D. L., and Purvis, A. (2007). The fast–slow continuum in mammalian life history: an empirical reevaluation. American Naturalist 169, 748–757.
The fast–slow continuum in mammalian life history: an empirical reevaluation.CrossRef | 1:STN:280:DC%2BD2s3ntVemtg%3D%3D&md5=da31c65113525f930761b126c0782217CAS | 17479461PubMed | open url image1

Boulton, A. J., and Lake, P. S. (1990). The ecology of two intermittent streams in Victoria, Australia. I. Multivariate analyses of physicochemical features. Freshwater Biology 24, 123–141.
The ecology of two intermittent streams in Victoria, Australia. I. Multivariate analyses of physicochemical features.CrossRef | 1:CAS:528:DyaK3MXhtVyns74%3D&md5=b16a68d41269fc59676c729385e2184cCAS | open url image1

Boulton, A. J., and Lake, P. S. (1992). The ecology of two intermittent streams in Victoria, Australia. III. Temporal changes in faunal composition. Freshwater Biology 27, 123–138.
The ecology of two intermittent streams in Victoria, Australia. III. Temporal changes in faunal composition.CrossRef | open url image1

Brown, J. L., and Orians, G. H. (1970). Spacing patterns in mobile animals. Annual Review of Ecology and Systematics 1, 239–262.
Spacing patterns in mobile animals.CrossRef | open url image1

Burns, M. J., Fletcher, T. D., Walsh, C. J., Ladson, A. R., and Hatt, B. E. (2012). Hydrologic shortcomings of conventional urban stormwater management and opportunities for reform. Landscape and Urban Planning 105, 230–240.
Hydrologic shortcomings of conventional urban stormwater management and opportunities for reform.CrossRef | open url image1

Burrell, H. (1974). ‘The Platypus.’ 2nd edn. (Rigby Limited: Adelaide.)

Clutton-Brock, T. H. (1989). Mammalian mating systems. Proceedings of the Royal Society of London. Series B, Biological Sciences 236, 339–372.
Mammalian mating systems.CrossRef | 1:STN:280:DyaL1M3ot1yktg%3D%3D&md5=89d64c00a357367972fc5d5142a0397eCAS | 2567517PubMed | open url image1

Coulson, T., Milner-Gulland, E. J., and Clutton-Brock, T. (2000). The relative roles of density and climatic variation on population dynamics and fecundity rates in three contrasting ungulate species. Proceedings of the Royal Society of London. Series B, Biological Sciences 267, 1771–1779.
The relative roles of density and climatic variation on population dynamics and fecundity rates in three contrasting ungulate species.CrossRef | 1:STN:280:DC%2BD38vnt1Shuw%3D%3D&md5=76d909bd277dc32c49344fb141d17f17CAS | open url image1

Cresswell, W. J., Harris, S., Cheeseman, C. L., and Mallinson, P. J. (1992). To breed or not to breed: an analysis of the social and density-dependent constraints on the fecundity of female badgers (Meles meles). Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 338, 393–407.
To breed or not to breed: an analysis of the social and density-dependent constraints on the fecundity of female badgers (Meles meles).CrossRef | 1:STN:280:DyaK3s7ltVSmtA%3D%3D&md5=f3aa54e8cf9dd2596e2f8555ce4e1a96CAS | 1362817PubMed | open url image1

De-La-Warr, M., and Serena, M. (1999). Observations of platypus Ornithorhynchus anatinus mating behaviour. The Victorian Naturalist 116, 172–174. open url image1

Easton, L., Williams, G., and Serena, M. (2008). Monthly variation in observed activity of the platypus Ornithorhynchus anatinus. The Victorian Naturalist 125, 104–109. open url image1

Faragher, R. A., Grant, T. R., and Carrick, F. N. (1979). Food of the platypus (Ornithorhynchus anatinus) with notes on the food of the brown trout (Salmo trutta) in the Shoalhaven River, N.S.W. Australian Journal of Ecology 4, 171–179.
Food of the platypus (Ornithorhynchus anatinus) with notes on the food of the brown trout (Salmo trutta) in the Shoalhaven River, N.S.W.CrossRef | open url image1

Frissell, C. A., and Nawa, R. K. (1992). Incidence and causes of physical failure of artificial habitat structures in streams of western Oregon and Washington. North American Journal of Fisheries Management 12, 182–197.
Incidence and causes of physical failure of artificial habitat structures in streams of western Oregon and Washington.CrossRef | open url image1

Furlan, E. M., Griffiths, J., Gust, N., Handasyde, K. A., Grant, T. R., Gruber, B., and Weeks, A. R. (2013). Dispersal patterns and population structuring among platypuses, Ornithorhynchus anatinus, throughout south-eastern Australia. Conservation Genetics 14, 837–853.
Dispersal patterns and population structuring among platypuses, Ornithorhynchus anatinus, throughout south-eastern Australia.CrossRef | 1:CAS:528:DC%2BC3sXhtVyrtLrI&md5=9ea408a37c73eb272a0d21c673e059f7CAS | open url image1

Gaillard, J.-M., Pontier, D., Allainé, D., Lebreton, J. D., Trouvilliez, J., and Clobert, J. (1989). An analysis of demographic tactics in birds and mammals. Oikos 56, 59–76.
An analysis of demographic tactics in birds and mammals.CrossRef | open url image1

Gaillard, J.-M., Boutin, J.-M., Delorme, D., Van Laere, G., Duncan, P., and Lebreton, J.-D. (1997). Early survival in roe deer: causes and consequences of cohort variation in two contrasted populations. Oecologia 112, 502–513.
Early survival in roe deer: causes and consequences of cohort variation in two contrasted populations.CrossRef | open url image1

Grant, T. R. (1982). Food of the platypus, Ornithorhynchus anatinus (Monotremata: Ornithorhynchidae), from various water bodies in New South Wales. Australian Mammalogy 5, 235–236. open url image1

Grant, T. R. (1992). Historical and current distribution of the platypus, Ornithorhynchus anatinus, in Australia. In ‘Platypus and Echidnas’. (Ed. M. L. Augee.) pp. 232–254. (Royal Zoological Society of New South Wales: Sydney.)

Grant, T. R. (2004a). Captures, capture mortality, age and sex ratios of platypuses, Ornithorhynchus anatinus, during studies over 30 years in the upper Shoalhaven River in New South Wales. Proceedings of the Linnean Society of New South Wales 125, 217–226. open url image1

Grant, T. R. (2004b). Depth and substrate selection by platypuses, Ornithorhynchus anatinus, in the lower Hastings River, New South Wales. Proceedings of the Linnean Society of New South Wales 125, 235–241. open url image1

Grant, T. R., and Temple-Smith, P. D. (1983). Size, seasonal weight change and growth in platypuses, Ornithorhynchus anatinus (Monotremata: Ornithorhynchidae), from rivers and lakes of New South Wales. Australian Mammalogy 6, 51–60. open url image1

Grant, T. R., and Whittington, R. J. (1991). The use of freeze-branding and implanted transponder tags as a permanent marking method for platypuses, Ornithorhynchus anatinus (Monotremata: Ornithorhynchidae). Australian Mammalogy 14, 147–150. open url image1

Grant, T. R., Griffiths, M., and Temple-Smith, P. D. (2004). Breeding in a free-ranging population of platypuses, Ornithorhynchus anatinus, in the upper Shoalhaven River, New South Wales – a 27 year study. Proceedings of the Linnean Society of New South Wales 125, 227–234. open url image1

Griffiths, J., Kelly, T., and Weeks, A. (2013). Net-avoidance behaviour in platypuses. Australian Mammalogy 35, 245–247.
Net-avoidance behaviour in platypuses.CrossRef | open url image1

Gust, N., and Griffiths, J. (2011). Platypus (Ornithorhynchus anatinus) body size, condition and population structure in Tasmanian river catchments: variability and potential mucormycosis impacts. Wildlife Research 38, 271–289.
Platypus (Ornithorhynchus anatinus) body size, condition and population structure in Tasmanian river catchments: variability and potential mucormycosis impacts.CrossRef | open url image1

Harris, J. H., and Leitner, P. (2004). Home-range size and use of space by adult Mohave ground squirrels, Spermophilus mohavensis. Journal of Mammalogy 85, 517–523.
Home-range size and use of space by adult Mohave ground squirrels, Spermophilus mohavensis.CrossRef | open url image1

Hawkins, M., and Battaglia, A. (2009). Breeding behaviour of the platypus (Ornithorhynchus anatinus) in captivity. Australian Journal of Zoology 57, 283–293.
Breeding behaviour of the platypus (Ornithorhynchus anatinus) in captivity.CrossRef | open url image1

Kneip, E., Van Vuren, D. H., Hostetler, J. A., and Oli, M. K. (2011). Influence of population density and climate on the demography of subalpine golden-mantled ground squirrels. Journal of Mammalogy 92, 367–377.
Influence of population density and climate on the demography of subalpine golden-mantled ground squirrels.CrossRef | open url image1

Krebs, C. J. (1966). Demographic changes in fluctuating populations of Microtus californicus. Ecological Monographs 36, 239–273.
Demographic changes in fluctuating populations of Microtus californicus.CrossRef | open url image1

Lake, P. S. (2000). Disturbance, patchiness, and diversity in streams. Journal of the North American Benthological Society 19, 573–592.
Disturbance, patchiness, and diversity in streams.CrossRef | open url image1

Liebhold, A., Koenig, W. D., and Bjørnstad, O. N. (2004). Spatial synchrony in population dynamics. Annual Review of Ecology Evolution and Systematics 35, 467–490.
Spatial synchrony in population dynamics.CrossRef | open url image1

Martin, E. H., Walsh, C. J., Serena, M., and Webb, J. A. (2014). Urban stormwater runoff limits distribution of platypus. Austral Ecology 39, 337–345.
Urban stormwater runoff limits distribution of platypus.CrossRef | open url image1

McKelvey, K. S., and Pearson, D. E. (2001). Population estimation with sparse data: the role of estimators versus indices revisited. Canadian Journal of Zoology 79, 1754–1765.
Population estimation with sparse data: the role of estimators versus indices revisited.CrossRef | open url image1

McLachlan-Troup, T. A., Dickman, C. R., and Grant, T. R. (2010). Diet and dietary selectivity of the platypus in relation to season, sex and macroinvertebrate assemblages. Journal of Zoology 280, 237–246.
Diet and dietary selectivity of the platypus in relation to season, sex and macroinvertebrate assemblages.CrossRef | open url image1

Miller, S. W., Budy, P., and Schmidt, J. C. (2010). Quantifying macroinvertebrate responses to in-stream habitat restoration: applications of meta-analysis to river restoration. Restoration Ecology 18, 8–19.
Quantifying macroinvertebrate responses to in-stream habitat restoration: applications of meta-analysis to river restoration.CrossRef | open url image1

Morrison, S. F., and Hik, D. S. (2007). Demographic analysis of a declining pika Ochotoma collaris population: linking survival to broad-scale climate patterns via spring snowmelt patterns. Journal of Animal Ecology 76, 899–907.
Demographic analysis of a declining pika Ochotoma collaris population: linking survival to broad-scale climate patterns via spring snowmelt patterns.CrossRef | 17714268PubMed | open url image1

Moyer, M. A., McCown, J. W., and Oli, M. K. (2007). Factors influencing home-range size of female Florida black bears. Journal of Mammalogy 88, 468–476.
Factors influencing home-range size of female Florida black bears.CrossRef | open url image1

Munks, S. A., Otley, H. M., Bethge, P., and Jackson, J. (2000). Reproduction, diet and daily energy expenditure of the platypus in a sub-alpine Tasmanian lake. Australian Mammalogy 21, 260–261. open url image1

Pereira, J. A., Fracassi, N. G., and Uhart, M. M. (2006). Numerical and spatial responses of Geoffroy’s cat (Oncifelis geoffroyi) to prey decline in Argentina. Journal of Mammalogy 87, 1132–1139.
Numerical and spatial responses of Geoffroy’s cat (Oncifelis geoffroyi) to prey decline in Argentina.CrossRef | open url image1

Pocock, M. J. O., Frantz, A. C., Cowan, D. P., White, P. C. L., and Searle, J. B. (2004). Tapering bias inherent in minimum number alive (MNA) population indices. Journal of Mammalogy 85, 959–962.
Tapering bias inherent in minimum number alive (MNA) population indices.CrossRef | open url image1

Rödel, H. G., Bora, A., Kaetzke, P., Khaschei, M., Hutzelmeyer, H., and von Holst, D. (2004). Over-winter survival in subadult European rabbits: weather effects, density dependence, and the impact of individual characteristics. Oecologia 140, 566–576.
Over-winter survival in subadult European rabbits: weather effects, density dependence, and the impact of individual characteristics.CrossRef | 15309616PubMed | open url image1

Rose, P., Metzeling, L., and Catzikiris, S. (2008). Can macroinvertebrate rapid bioassessment methods be used to assess river health during drought in south eastern Australian streams? Freshwater Biology 53, 2626–2638.
Can macroinvertebrate rapid bioassessment methods be used to assess river health during drought in south eastern Australian streams?CrossRef | 1:CAS:528:DC%2BD1MXivFyqug%3D%3D&md5=7f2a8e282ce7feb30e09d62fe1dcce12CAS | open url image1

Serena, M. (1994). Use of time and space by platypus (Ornithorhynchus anatinus: Monotremata) along a Victorian stream. Journal of Zoology 232, 117–131.
Use of time and space by platypus (Ornithorhynchus anatinus: Monotremata) along a Victorian stream.CrossRef | open url image1

Serena, M., and Pettigrove, V. (2005). Relationship of sediment toxicants and water quality to the distribution of platypus populations in urban streams. Journal of the North American Benthological Society 24, 679–689.
Relationship of sediment toxicants and water quality to the distribution of platypus populations in urban streams.CrossRef | open url image1

Serena, M., and Williams, G. (2010). Factors contributing to platypus mortality in Victoria. The Victorian Naturalist 127, 178–183. open url image1

Serena, M., and Williams, G. A. (2012a). Effect of sex and age on temporal variation in the frequency and direction of platypus (Ornithorhynchus anatinus) captures in fyke nets. Australian Mammalogy 34, 75–82.
Effect of sex and age on temporal variation in the frequency and direction of platypus (Ornithorhynchus anatinus) captures in fyke nets.CrossRef | open url image1

Serena, M., and Williams, G. A. (2012b). Movements and cumulative range size of the platypus (Ornithorhynchus anatinus) inferred from mark–recapture studies. Australian Journal of Zoology 60, 352–359.
Movements and cumulative range size of the platypus (Ornithorhynchus anatinus) inferred from mark–recapture studies.CrossRef | open url image1

Serena, M., Thomas, J. L., Williams, G. A., and Officer, R. C. E. (1998). Use of stream and river habitats by the platypus, Ornithorhynchus anatinus, in an urban fringe environment. Australian Journal of Zoology 46, 267–282.
Use of stream and river habitats by the platypus, Ornithorhynchus anatinus, in an urban fringe environment.CrossRef | open url image1

Serena, M., Worley, M., Swinnerton, M., and Williams, G. A. (2001). Effect of food availability and habitat on the distribution of platypus (Ornithorhynchus anatinus) foraging activity. Australian Journal of Zoology 49, 263–277.
Effect of food availability and habitat on the distribution of platypus (Ornithorhynchus anatinus) foraging activity.CrossRef | open url image1

Shaffer, M. L. (1981). Minimum population sizes for species conservation. Bioscience 31, 131–134.
Minimum population sizes for species conservation.CrossRef | open url image1

Slade, N. A., and Blair, S. M. (2000). An empirical test of using counts of individuals captured as indices of population size. Journal of Mammalogy 81, 1035–1045.
An empirical test of using counts of individuals captured as indices of population size.CrossRef | open url image1

Stearns, S. C. (1983). The influence of size and phylogeny on patterns of covariation among life-history traits in the mammals. Oikos 41, 173–187.
The influence of size and phylogeny on patterns of covariation among life-history traits in the mammals.CrossRef | open url image1

Stewart, K. M., Bowyer, R. T., Dick, B. L., Johnson, B. K., and Kie, J. G. (2005). Density-dependent effects on physical condition and reproduction in North American elk: an experimental test. Oecologia 143, 85–93.
Density-dependent effects on physical condition and reproduction in North American elk: an experimental test.CrossRef | 15586292PubMed | open url image1

Tabachnick, B. G., and Fidell, L. S. (1989). ‘Using Multivariate Statistics.’ (Harper & Row: New York.)

Temple-Smith, P. D. (1973). Seasonal breeding of the platypus, Ornithorhynchus anatinus (Shaw, 1799), with special reference to the male. Ph.D. Thesis, Australian National University, Canberra.

Temple-Smith, P., and Grant, T. (2001). Uncertain breeding: a short history of reproduction in monotremes. Reproduction, Fertility and Development 13, 487–497.
Uncertain breeding: a short history of reproduction in monotremes.CrossRef | 1:STN:280:DC%2BD383lvFyrsg%3D%3D&md5=71a9f6713b97e29c804c2967e4804b18CAS | open url image1

Tullos, D. D., Penrose, D. L., Jennings, G. D., and Cope, W. G. (2009). Analysis of functional traits in reconfigured channels: implications for the bioassessment and disturbance of river restoration. Journal of the North American Benthological Society 28, 80–92.
Analysis of functional traits in reconfigured channels: implications for the bioassessment and disturbance of river restoration.CrossRef | open url image1

Walsh, C. J., and Breen, P. F. (2001). A biological approach to assessing the potential success of habitat restoration in urban streams. Verhandlungen der Internationalen Vereinigung für theoretische und angewandte Limnologie 27, 3654–3658. open url image1

Walsh, C. J., Roy, A. H., Feminella, J. W., Cottingham, P. D., Groffman, P. M., and Morgan, R. P. (2005). The urban stream syndrome: current knowledge and the search for a cure. Journal of the North American Benthological Society 24, 706–723.
The urban stream syndrome: current knowledge and the search for a cure.CrossRef | open url image1

Wauters, L., and Dhondt, A. A. (1989). Body weight, longevity and reproductive success in red squirrels (Sciurus vulgaris). Journal of Animal Ecology 58, 637–651.
Body weight, longevity and reproductive success in red squirrels (Sciurus vulgaris).CrossRef | open url image1

White, R. G., Rowell, J. E., and Hauer, W. E. (1997). The role of nutrition, body condition and lactation on calving success in muskoxen. Journal of Zoology 243, 13–20.
The role of nutrition, body condition and lactation on calving success in muskoxen.CrossRef | open url image1

Williams, G. A., Serena, M., and Grant, T. R. (2013). Age-related change in spurs and spur sheaths of the platypus Ornithorhynchus anatinus. Australian Mammalogy 35, 107–114.
Age-related change in spurs and spur sheaths of the platypus Ornithorhynchus anatinus.CrossRef | open url image1

Zar, J. H. (1984). ‘Biostatistical Analysis.’ (Prentice-Hall: Englewood Cliffs, NJ.)



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