Tourism and little penguins: a comparative study of survival and reproductive parameters
Philippa Agnew
A C and David M. Houston B
+ Author Affiliations
- Author Affiliations
A Oamaru Blue Penguin Colony, 2 Waterfront Road, Oamaru 9400, New Zealand.
B Biodiversity Group, Department of Conservation, Private Bag 68 908, Auckland 1141, New Zealand.
C Corresponding author. Email: research@penguins.co.nz
Wildlife Research 47(4) 349-358 https://doi.org/10.1071/WR19057
Submitted: 26 March 2019 Accepted: 27 January 2020 Published: 3 June 2020
Abstract
Context: Tourism operations that provide the opportunity for wildlife viewing can support conservation management through public education, habitat protection, population management, research activities and revenue generation. However, alongside these potential benefits there can be negative effects on the species that include the possibility of reduced breeding success, survival and, subsequently, population growth.
Aim: We sought to establish whether a tourism operation affected little penguins Eudyptula minor by comparing reproductive and survival parameters of two managed populations in Oamaru, New Zealand. One population was the focus of a tourism operation, whereas the other (located nearby) did not provide any public access. The tourism operation implemented strategies to reduce human disturbance, including the reduction of noise, light and movement from visitors during viewing, and by ensuring that visitors were restricted to designated viewing areas.
Methods: Nesting boxes were installed at both colonies that facilitated weekly monitoring of the populations. The monitoring program (1993–2017) included weekly checks of every nesting box in the colony for the presence of eggs, chicks and adults. Chicks were weighed before fledging, and both fledglings and breeding adults were individually marked.
Key results: Lay dates, breeding success, chick fledge mass and survival rates were not measurably different between the two populations, indicating that there was little evidence of negative effects on the penguins at the tourist site.
Conclusions: The slight differences observed between the colonies during the time series were attributed to environmental damage sustained at the non-tourist site and a difference in the proportion of un-monitored nest sites available to the penguins when the study was initiated.
Implications: Notwithstanding the present findings, long-term and consistent monitoring of wildlife populations facing increasing pressure from tourism is essential to ensure effects are detected and that management procedures implemented to reduce potential effects.
Additional keywords: anthropogenic impacts, conservation, population biology, wildlife management.
References
Agnew, P., Houston, D., Lalas, C., and Wright, J. (2014). Variation in reproductive performance of little penguins (Eudyptula minor) attributable to double brooding. Journal of Ornithology 155, 101–109.| Variation in reproductive performance of little penguins (Eudyptula minor) attributable to double brooding.Crossref | GoogleScholarGoogle Scholar |
Agnew, P., Lalas, C., Wright, J., and Dawson, S. (2015). Variation in breeding success and survival of little penguins Eudyptula minor in response to environmental variation. Marine Ecology Progress Series 541, 219–229.
| Variation in breeding success and survival of little penguins Eudyptula minor in response to environmental variation.Crossref | GoogleScholarGoogle Scholar |
Blamey, R. K. (2001). Principles of ecotourism. The encyclopedia of ecotourism 2001, 5–22.
Burger, J., and Gochfeld, M. (2007). Responses of emperor penguins (Aptenodytes forsteri) to encounters with ecotourists while commuting to and from their breeding colony. Polar Biology 30, 1303–1313.
| Responses of emperor penguins (Aptenodytes forsteri) to encounters with ecotourists while commuting to and from their breeding colony.Crossref | GoogleScholarGoogle Scholar |
Burnham, K. P., and Anderson, D. R. (2002) ‘Model Selection and Multimodel Inference: A Practical Information–Theoretic Approach.’ (Springer: New York, NY, USA.)
Carroll, G., Turner, E., Dann, P., and Harcourt, R. (2016). Prior exposure to capture heightens the corticosterone and behavioural responses of little penguins (Eudyptula minor) to acute stress. Conservation Physiology 4, cov061.
| Prior exposure to capture heightens the corticosterone and behavioural responses of little penguins (Eudyptula minor) to acute stress.Crossref | GoogleScholarGoogle Scholar | 27293742PubMed |
Cockrem, J. F., Jane, C. E., Paul, B. D., Agnew, P., and Potter, M. A. (2016). Individual variation and repeatability of corticosterone responses of little penguins (Eudyptula minor) sampled in two successive years at Oamaru, New Zealand. General and Comparative Endocrinology , .
| 26801581PubMed |
Dann, P. (1991). Distribution, population trends and factors influencing the population size of little penguins Eudyptula minor on Phillip Island, Victoria. Emu 91, 263–272.
| Distribution, population trends and factors influencing the population size of little penguins Eudyptula minor on Phillip Island, Victoria.Crossref | GoogleScholarGoogle Scholar |
Dann, P., Cullen, J. M., Thoday, R., and Jessop, R. (1991). Movements and patterns of mortality at sea of little penguins Eudyptula minor from Phillip Island, Victoria. Emu 91, 278–286.
| Movements and patterns of mortality at sea of little penguins Eudyptula minor from Phillip Island, Victoria.Crossref | GoogleScholarGoogle Scholar |
Dann, P. (1994). The abundance, breeding distribution and nest sites of blue penguins in Otago, New Zealand. Notornis 41, 157–166.
Ellenberg, U., Mattern, T., Seddon, P. J., and Jorquera, G. L. (2006). Physiological and reproductive consequences of human disturbance in Humboldt penguins: the need for species-specific visitor management. Biological Conservation 133, 95–106.
| Physiological and reproductive consequences of human disturbance in Humboldt penguins: the need for species-specific visitor management.Crossref | GoogleScholarGoogle Scholar |
Ellenberg, U., Setiawan, A. N., Cree, A., Houston, D. M., and Seddon, P. J. (2007). Elevated hormonal stress response and reduced reproductive output in yellow-eyed penguins exposed to unregulated tourism. General and Comparative Endocrinology 152, 54–63.
| Elevated hormonal stress response and reduced reproductive output in yellow-eyed penguins exposed to unregulated tourism.Crossref | GoogleScholarGoogle Scholar | 17400221PubMed |
Gales, R. (1985). Breeding seasons and double brooding of the little penguin Eudyptula minor in New Zealand. Emu 85, 127–130.
| Breeding seasons and double brooding of the little penguin Eudyptula minor in New Zealand.Crossref | GoogleScholarGoogle Scholar |
Giese, M. (1996). Effects of human activity on Adélie penguin Pygoscelis adeliae breeding success. Biological Conservation 75, 157–164.
| Effects of human activity on Adélie penguin Pygoscelis adeliae breeding success.Crossref | GoogleScholarGoogle Scholar |
Giling, D., Reina, R. D., and Hogg, Z. (2008). Anthropogenic influence on an urban colony of the little penguin Eudyptula minor. Marine and Freshwater Research 59, 647–651.
| Anthropogenic influence on an urban colony of the little penguin Eudyptula minor.Crossref | GoogleScholarGoogle Scholar |
Heber, S., Wilson, K. J., and Molles, L. (2008). Breeding biology and breeding success of the blue penguin (Eudyptula minor) on the West Coast of New Zealand’s South Island. New Zealand Journal of Zoology 35, 63–71.
| Breeding biology and breeding success of the blue penguin (Eudyptula minor) on the West Coast of New Zealand’s South Island.Crossref | GoogleScholarGoogle Scholar |
Hocken, A. G. (2000). Cause of death in blue penguins (Eudyptula m. minor) in North Otago, New Zealand. New Zealand Journal of Zoology 27, 305–309.
| Cause of death in blue penguins (Eudyptula m. minor) in North Otago, New Zealand.Crossref | GoogleScholarGoogle Scholar |
Holmes, N. D. (2007). Comparing king, gentoo, and royal penguin responses to pedestrian visitation. The Journal of Wildlife Management 71, 2575–2582.
| Comparing king, gentoo, and royal penguin responses to pedestrian visitation.Crossref | GoogleScholarGoogle Scholar |
Houston, D. (1999). The use of nest boxes for blue penguins (Eudyptula minor). Ecological Management 7, 7–11.
Johannesen, E., Houston, D., and Russell, J. (2003). Increased survival and breeding performance of double breeders in little penguins Eudyptula minor, New Zealand: evidence for individual bird quality? Journal of Avian Biology 34, 198–210.
| Increased survival and breeding performance of double breeders in little penguins Eudyptula minor, New Zealand: evidence for individual bird quality?Crossref | GoogleScholarGoogle Scholar |
Kemp, A., and Dann, P. (2001). Egg size, incubation periods and hatching success of little penguins, Eudyptula minor. Emu 101, 249–253.
| Egg size, incubation periods and hatching success of little penguins, Eudyptula minor.Crossref | GoogleScholarGoogle Scholar |
Lebreton, J. D., Burnham, K. P., Clobert, J., and Anderson, D. R. (1992). Modeling survival and testing biological hypotheses using marked animals: a unified approach with case studies. Ecological Monographs 62, 67–118.
| Modeling survival and testing biological hypotheses using marked animals: a unified approach with case studies.Crossref | GoogleScholarGoogle Scholar |
Lebreton, J. D., Hines, J. E., Pradel, R., Nichols, J. D., and Spendelow, J. A. (2003). Estimation by capture–recapture of recruitment and dispersal over several sites. Oikos 101, 253–264.
| Estimation by capture–recapture of recruitment and dispersal over several sites.Crossref | GoogleScholarGoogle Scholar |
McClung, M. R., Seddon, P. J., Massaro, M., and Setiawan, A. N. (2004). Nature-based tourism impacts on yellow-eyed penguins Megadyptes antipodes: does unregulated visitor access affect fledging weight and juvenile survival? Biological Conservation 119, 279–285.
| Nature-based tourism impacts on yellow-eyed penguins Megadyptes antipodes: does unregulated visitor access affect fledging weight and juvenile survival?Crossref | GoogleScholarGoogle Scholar |
Nisbet, I. C. T., and Dann, P. (2009). Reproductive performance of little penguins Eudyptula minor in relation to year, age, pair-bond duration, breeding date and individual quality. Journal of Avian Biology 40, 296–308.
| Reproductive performance of little penguins Eudyptula minor in relation to year, age, pair-bond duration, breeding date and individual quality.Crossref | GoogleScholarGoogle Scholar |
Otley, H. M. (2005). Nature-based tourism: experiences at the Volunteer Point penguin colony in the Falkland Islands. Marine Ornithology 33, 181–187.
Perriman, L., and Steen, H. (2000). Blue penguin (Eudyptula minor) nest distribution and breeding success on Otago Peninsula, 1992 to 1998. New Zealand Journal of Zoology 27, 269–275.
| Blue penguin (Eudyptula minor) nest distribution and breeding success on Otago Peninsula, 1992 to 1998.Crossref | GoogleScholarGoogle Scholar |
Perriman, L., Houston, D., Steen, H., and Johannesen, E. (2000). Climate fluctuation effects on breeding of blue penguins (Eudyptula minor). New Zealand Journal of Zoology 27, 261–267.
| Climate fluctuation effects on breeding of blue penguins (Eudyptula minor).Crossref | GoogleScholarGoogle Scholar |
Reilly, P. N., and Cullen, J. M. (1981). The little penguin Eudyptula minor in Victoria, II: breeding. Emu 81, 1–19.
| The little penguin Eudyptula minor in Victoria, II: breeding.Crossref | GoogleScholarGoogle Scholar |
Reilly, P. N., and Cullen, J. M. (1982). The little penguin Eudyptula minor in Victoria, III: dispersal of chicks and survival after banding. Emu 82, 137–142.
| The little penguin Eudyptula minor in Victoria, III: dispersal of chicks and survival after banding.Crossref | GoogleScholarGoogle Scholar |
Sandercock, B. K., Szekely, T., and Kosztolanyi, A. (2005). The effects of age and sex on the apparent survival of Kentish Plovers breeding in southern Turkey. The Condor 107, 583–596.
| The effects of age and sex on the apparent survival of Kentish Plovers breeding in southern Turkey.Crossref | GoogleScholarGoogle Scholar |
Seddon, P. and Ellenberg, U. (2008). Effects of human disturbance on penguins: the need for site and species specific visitor management guidelines. In ‘Marine Wildlife and Tourism Management: Insights From the Natural and Social Sciences’. (Eds J. Higham and M. Lück.) pp. 163–181. (CABI Publishing: Wallingford, UK.)
Shaughnessy, P. D., and Briggs, S. V. (2009). Tourists and little penguins (Eudyptula minor) at Montague Island, New South Wales. Corella 33, 25–29.
Stevenson, C., and Woehler, E. J. (2007). Population decreases in little penguins Eudyptula minor in southeastern Tasmania, Australia, over the past 45 years. Marine Ornithology 35, 71–76.
Tisdell, C. (2007). Valuing the Otago Peninsula: the economic benefits of conservation. The University of Queensland School of Economics, Brisbane, Qld, Australia.
Vásquez Lavin, F., Gelcich, S., Paz Lerdon, X., and Montealegre Bustos, F. (2016). The role of information in changing tourists behavioral preferences at the Humboldt penguin reserve in northern Chile. Ocean and Coastal Management 125, 63–69.
| The role of information in changing tourists behavioral preferences at the Humboldt penguin reserve in northern Chile.Crossref | GoogleScholarGoogle Scholar |
Walker, B. G., Boersma, D. P., and Wingfield, J. C. (2006). Habituation of adult Magellanic penguins to human visitation as expressed through behavior and corticosterone secretion. Conservation Biology 20, 146–154.
| Habituation of adult Magellanic penguins to human visitation as expressed through behavior and corticosterone secretion.Crossref | GoogleScholarGoogle Scholar | 16909667PubMed |
White, G. C., Burnham, K. P., and Anderson, D. R. (2001). Advanced features of program MARK. In ‘Wildlife, Land, and People: Priorities for the 21st Century. Proceedings of the Second International Wildlife Management Congress’. (Eds R. Field, R. J. Warren, H. Okarma, and P. R. Sievert.) pp. 368–377. (The Wildlife Society: Bethesda, MD, USA.)
