Seedling ratios: A simple method for assessing ungulate impacts on forest understories

Wildlife Society Bulletin

Volumn 32, Issue 1, 2004, Pages 137-147

  Sweetapple, Peter J ^a,b   Nugent, Graham ^a,b,c  

^a LANDCARE RESEARCH   (New Zealand)

^b UNIVERSITY OF CANTERBURY   (New Zealand)

^c UNIVERSITY OF AUCKLAND   (New Zealand)

Author keywords

Assessment methods; Forest understories; Pigs; Ruminants; Short seedlings; Species richness; Tall seedlings; Ungulate impacts

Indexed keywords

ASSESSMENT METHOD; HABITAT CONSERVATION; SEEDLING; SURVEYING; UNDERSTORY; UNGULATE;

AUSTRALASIA; HAWAII [UNITED STATES]; NEW ZEALAND; NORTH AMERICA; UNITED STATES;

ANIMALIA; BOVIDAE; CELLULAR ORGANISMS; SUS; SUS SCROFA; UNGULATA;

EID: 2142771368     PISSN: 00917648     EISSN: None     Source Type: Journal    
DOI: 10.2193/0091-7648(2004)32[137:SRASMF]2.0.CO;2     Document Type: Article

References (27)

1. ALLEN, R. B. 1993. A permanent plot method for monitoring changes in indigenous forests. Manaaki Whenua - Landcare Research, Christchurch, New Zealand.
2. ANDERSON, S. J., AND C. P. STONE. 1994. Indexing sizes of feral pig populations in a variety of Hawaiian natural areas. Transactions of the Western Section of the Wildlife Society 30: 26-39.
3. ATKINSON, I. A. E. 1964. Relationships between feral goats and vegetation in New Zealand. Proceedings of the New Zealand Ecological Society 11: 39-44.
4. BATCHELER, C. L. 1975. Development of a distance method for deer census from pellet counts. Journal of Wildlife Management 39: 641-652.
5. BRATTON, S. P. 1975. The effect of the European wild boar, Sus scrofa, on gray beech forest in the Great Smokey Mountains. Ecology 56: 1356-1366.
6. BRENNAN, M., H. MOLLER, AND J. P. PARKES. 1993. Indices of density of feral goats in a grassland/forest habitat, Marlborough, New Zealand. New Zealand Journal of Ecology 17: 103-106.
7. CAUGHLEY, G. 1977. Analysis of vertebrate populations. John Wiley, New York, New York, USA.
8. CHOQUENOT, D., AND J. PARKES. 2001. Setting thresholds for pest control: how does pest density affect resource viability? Biological Conservation 99: 29-46.
9. FORSYTH, D. M., D. A. COOMES, G. NUGENT, AND G. M. J. HALL. 2002. Diet and diet preferences of introduced ungulates (Order: Artiodactyla) in New Zealand. New Zealand Journal of Zoology 29: 323-343.
10. GIBBS, J. P., H. L. SNELL, AND C. E. CAUSTON. 1999. Effective monitoring for adaptive wildlife management: lessons from the Galapagos Islands. Journal of Wildlife Management 63:1055-1065.
11. HONE, J. 1988. Evaluation of methods for ground survey of feral pigs and their sign. Acta Theriologica 33: 451-465.
12. HONE, J. 2002. Feral pigs in Namadgi National Park, Australia: dynamics, impacts and management. Biological Conservation 105: 231-242.
13. KRAMER, R. J. 1971. Hawaiian land mammals. Charles E. Tuttle, Tokyo, Japan.
14. MCKELVEY, P. J. 1995. Steepland forests. A historical perspective of protection forestry in New Zealand. Canterbury University Press, Christchurch, New Zealand.
15. MITCHELL, R. J., R. A. FORDHAM, AND A. JOHN. 1987. The annual diet of feral goats (Capra hircus L.) in lowland rimu-rata-kamahi forest on eastern Mount Taranaki (Mt Egmont). New Zealand Journal of Zoology 14: 179-192.
16. NUGENT, G. 1990. Forage availability and the diet of fallow deer (Dama dama) in the Blue Mountains, Otago. New Zealand Journal of Ecology 13: 83-95.
17. NUGENT, G., AND C. N. CHALLIES. 1988. Diet and food preferences of white-tailed deer in north-eastern Stewart Island. New Zealand Journal of Ecology 11: 61-71.
18. NUGENT, G., K. W. FRASER, AND P. J. SWEETAPPLE. 1997. Comparison of red deer and possum diets and impacts in podocarp-hardwood forest, Waihaha catchment, Pureora Conservation Park. Science for Conservation 50, Department of Conservation, Wellington, New Zealand.
19. NUGENT, G., W. FRASER, AND P. SWEETAPPLE. 2001. Top down or bottom up? Comparing impacts of introduced arboreal possums and 'terrestrial' ruminants on native forests in New Zealand. Biological Conservation 99: 65-79.
20. RALPH, C. J., AND B. D. MAXWELL. 1984. Relative effects of human and feral hog disturbance on a wet forest in Hawaii. Biological Conservation 30: 291-303.
21. SOHMER, S. H., AND R. GUSTAFSON. 1987. Plants and flowers of Hawaii. University of Hawaii Press, Honolulu, USA.
22. STEEL, G. D., AND J. H. TORRIE. 1960. Principles and procedures of statistics. McGraw-Hill, New York, New York, USA.
23. SWEETAPPLE, P. J., AND B. R. BURNS. 2002. Assessing the response of forest understorys to feral goat control with and without possum control. Science for Conservation 201, Department of Conservation, Wellington, New Zealand.
24. WAGNER, W. L., D. R. HERBST, AND S. H. SOHMER. 1990. Manual of the flowering plants of Hawaii. Bishop Museum Special Publication # 83. University of Hawaii, Honolulu, USA.
25. WARDLE, J. 1984. The New Zealand beeches: ecology, utilisation, and Management. New Zealand Forest Service, Wellington, New Zealand.
26. WARDLE, J., J. HAYWARD, AND J. HERBERT. 1971. Forests and scrublands of Northern Fiordland. New Zealand Journal of Forestry Science 1: 80-115.
27. WARDLE, P. 1991. Vegetation of New Zealand. Cambridge University Press, Cambridge, United Kingdom.