Non-intrusive monitoring of otters (Lutra lutra) using infrared technology

Journal of Zoology

Volumn 270, Issue 4, 2006, Pages 577-584

  Garcia De Leaniz, C ^a   Forman, D W ^a   Davies, S ^a   Thomson, A ^b  

^a SWANSEA UNIVERSITY   (United Kingdom)

^b Middle Dee Project   (United Kingdom)

Author keywords

Activity patterns; Conservation; Infrared technology; Lutra lutra; Non intrusive monitoring; Riparian mammals

Indexed keywords

ACTIVITY PATTERN; BREEDING; INFRARED RADIATION; MONITORING; MUSTELID; NOCTURNAL ACTIVITY; SALMONID; SEASONALITY; TRIBUTARY;

DEE RIVER [SCOTLAND]; EURASIA; EUROPE; SCOTLAND; UNITED KINGDOM; WESTERN EUROPE;

CARNIVORA; LUTRA LUTRA; LUTRINAE; MAMMALIA; SALMONIDAE;

EID: 33751018528     PISSN: 09528369     EISSN: 14697998     Source Type: Journal    
DOI: 10.1111/j.1469-7998.2006.00124.x     Document Type: Article

References (46)

1. Banks, S.C., Finlayson, G.R., Lawson, S.J., Lindenmayer, D.B., Paetkay, D., Ward, S.J. & Taylor, A.C. (2005). The effects of habitats fragmentation due to forestry plantation establishment on the demography and genetic variation of a marsupial carnivore Antechinus agilis. Biol. Conserv. 122, 581-597 .
2. Beja, P.R. (1996). Temporal and spatial patterns of rest-site use by four female otters Lutra lutra along the south-west coast of Portugal. J. Zool. (Lond.) 239, 741-753.
3. Belant, J.L. (2003). A hairsnare for forest carnivores. Wildl. Soc. Bull. 31, 482-485.
4. Carss, D.N., Elston, D.A. & Morley, H.S. (1998). The effects of otter (Lutra lutra) activity on spraint production and composition: implications for models which estimate preysize distribution. J. Zool. (Lond.) 244, 295-302.
5. Carss, D.N., Kruuk, H. & Conroy, J.W.H. (1990). Predation on adult Atlantic salmon, Salmo salar L., by otters, Lutra lutra (L.), within the River Dee system, Aberdeenshire, Scotland. J. Fish Biol. 37, 935-944.
6. Chanin, P. (1985). The natural history of otters. London: Croom Helm.
7. Coakes, A., Gowans, S., Simardi, P., Giard, J., Vashro, C. & Sears, R. (2005). Photographic identification of fin whales (Balaenoptera physalus) off the Atlantic Coast of Nova Scotia, Canada. Mar. Mamm. Sci. 21, 323-326.
8. Cutler, T.L. & Swann, D.E. (1999). Using remote photography in wildlife ecology: a review. Wildl. Soc. Bull. 27, 571-581.
9. Dallas, J.F., Coxon, K.E., Sykes, T., Chanin, P.R.F., Marshall, F., Carss, D.N., Bacon, F.J., Piertney, F.B. & Racey, P.A. (2003). Similar estimates of population genetic composition and sex ratio derived from carcasses and faeces of Eurasian otter Lutra lutra. Mol. Ecol. 12, 275-282.
10. Davison, A., Birks, J.D.S., Brookes, R.C., Braithwaite, T.C. & Messenger, J.E. (2002). On the origin of faeces: morphological versus molecular methods for surveying rare carnivores from their scats. J. Zool. (Lond.) 257, 141-143.
11. Gill, R.M.A., Thomas, M.L. & Stocker, D. (1997). The use of portable thermal imaging for estimating deer population density in forest habitats. J. Appl. Ecol. 34, 1273-1286.
12. González-Esteban, J., Villate, I. & Irizar, I. (2004). Assessing camera traps for surveying the European mink, Mustela lutreola (Linnaeus, 1761), distribution. Eur. J. Wildl. Res. 50, 30-33.
13. Gorman, M.L., Kruuk, H., Jones, C., McLaren, G. & Conroy, J.W.H. (1998). The demography of European otters Lutra lutra. In Behaviourand ecology of riparian mammals: 107-118. Dunstone, N. & Gorman, M. (Eds). Cambridge: Cambridge University Press.
14. Green, J., Green, R. & Jefferies, D.J. (1984). A radio-tracking survey of otters Lutra lutra on a Perthshire river system. Lutra 27, 85-145.
15. Heffner, R.A., Butler, M.J.IV & Reilly, C.K. (1996). Pseudoreplication revisited. Ecology 77, 2558-2562.
16. Jenkins, D. & Harper, R.J. (1980). Ecology of otters in Northern Scotland. 2. Analyses of otter (Lutra lutra) and mink (Mustela vison) feces from Deeside, NE Scotland in 1977-78. J. Anim. Ecol. 49, 737-754.
17. Jones, L.L.C. & Raphael, M.G. (1993). Inexpensive camera systems for detecting martens, fishers, and other animals: guidelines for use and standardization. Oregon: United States Forest Service.
18. Karanth, K.U., Chundawat, R.S., Nichol, J.D. & Kumar, N.S. (2004). Estimation of tiger densities in the tropical dry forests of Panna, Central India, using photographic capture-recapture sampling. Anim. Conserv. 7, 285-290.
19. Karanth, K.U. & Nichols, J.D. (1998). Estimation of tiger densities in India using photographic captures and recaptures. Ecology 79, 2852-2862.
20. Karczmarski, L., Wursig, B., Gailey, G., Larson, K.W. & Vanderlip, C. (2005). Spinner dolphins in a remote Hawaiian atoll: social grouping and population structure. Behav. Ecol. 16, 675-685.
21. Kruuk, H. (1992). Scent marking by otters (Lutra lutra): signaling the use of resources. Behav. Ecol. 3, 133-140.
22. Kruuk, H. (1995). Wild otters. Predation and populations. Oxford: Oxford University Press.
23. Kruuk, H. & Carss, D.N. (1998). Costs and benefits of fishing by a semi-aquatic carnivore, the otter Lutra lutra. In Aquatic predators and their prey: 10-16. Greenstreet, S.P.R. & Tasker, M.L. (Eds). Oxford: Fishing News Books.
24. Kruuk, H., Carss, D.N., Conroy, J.W.H. & Gaywod, M.J. (1998). Habitat use and conservation of otters (Lutra lutra) in Britain. In Behaviour and ecology of riparian mammals: 119-134. Dunstone, N. & Gorman, M.L. (Eds). Cambridge: Cambridge University Press.
25. Kruuk, H., Conroy, J.W.H., Glimmerveen, U. & Ouwererk, E.J. (1986). The use of spraints to survey populations of otters Lutra lutra. Biol. Conserv. 35, 187-194.
26. Kruuk, H., Gorman, M. & Parish, T. (1980). The use of 65-Zn for estimating populations of carnivores. Oikos 34, 206-208.
27. Kruuk, H., Moorhouse, A., Conroy, J.W.H., Durbin, L. & Frears, S. (1989). An estimate of numbers and habitat preferences of otters Lutra lutra in Shetland, UK. Biol. Conserv. 49, 241-254.
28. Lynch, J.M., Conroy, J.W.H., Kitchener, A.C., Jefferies, D.J. & Hayden, D.J. (1990). Variation in cranial form and sexual dimorphism among five European populations of the otter Lutra lutra. J. Zool. (Lond.) 238, 81-96.
29. Macdonald, D. & Barrett, P. (1993). Field guide to the mammals of Britain and Europe. London: HarperCollins.
30. Mace, G.M., Baillie, J.E.M., Beissinger, S.R. & Redford, K.H. (2001). Assessment and management of species risk. In Conservation biology. Research priorities for the next decade: 11-29. Soulé, M.E. & Orians, G.H. (Eds). Washington: Island Press.
31. Mason, C.F. & Macdonald, S.M. (1986). Otters: ecology and conservation. Cambridge: Cambridge University Press.
32. Nolet, B.A., Wansink, D.E.H. & Kruuk, H. (1993). Diving of otters (Lutra lutra) in a marine habitat: use of depth by a single-prey loader. J. Anim. Ecol. 62, 22-32.
33. Pfeiffer, P. & Culik, B.M. (1998). Energy metabolism of underwater swimming in river-otters (Lutra lutra L.). J. Comp. Physiol. B: Biochem. Syst. Environ. Physiol. 168, 143-148.
34. Romanowski, J. & Brzezinski, M. (1997). How standard is the standard technique of the otter survey? IUCN Otter Spec. Group Bull. 14, 57-61.
35. Ruiz-Olmo, J., Jiménez, J. & López-Martín, J.M. (1995). Radio-tracking of otters Lutra lutra in north-eastern Spain. Lutra 37, 1-6.
36. Ruiz-Olmo, J., Saavedra, D. & Jiménez, J. (2001). Testing the surveys and visual track censuses of Eurasian otters (Lutra lutra). J. Zool. (Lond.) 253, 359-369.
37. Shardlow, T.F. & Hyatt, K.D. (2004). Assessment of the counting accuracy of the Vaki infrared counter on chum salmon. N. Am. J. Fish. Mgmt. 24, 249-252.
38. Sidorovich, V.E. (1991). Structure, reproductive status and dynamics of the otter population in Belorussia. Acta Theriol. 36, 153-161.
39. Silver, S.C., Ostro, L.E.T., Marsh, L.K., Maffai, L., Noss, A.J., Kelly, M.J., Wallace, R.B., Gomez, H. & Ayala, G. (2004). The use of camera traps for estimating jaguar Panthera onca abundance and density using capture/recapture analysis. Oryx 38, 148-154.
40. Stearns, B.P. & Stearns, S.C. (1999). Watching, from the edge of extinction. London: Yale University Pres.
41. Strachan, R. & Jefferies, D.J. (1996). The otter survey of England 1991-1994. London: Vincent Wildlife Trust.
42. Sutherland, W.J. (2002). Mammals. In Ecological census techniques: a handbook: 206-278. Sutherland, W.J. (Ed.). Cambridge: Cambridge University Press.
43. Terry, A.M.R. & McGregor, P.K. (2002). Census and monitoring based on individually identifiable vocalizations: the role of neural networks. Anim. Conserv. 5, 103-111.
44. Wilson, G.J. & Delahay, R.J. (2001). A review of methods to estimate the abundance of terrestrial carnivores using field signs and observation. Wildl. Res. 28, 151-164.
45. Wires, L.R., Carss, D.N., Cuthbert, F.J. & Hatch, J.J. (2003). Transcontinental connections in relation to cormorant-fisheries conflicts: perceptions and realities of a "bête noire" (black beast) on both sides of the Atlantic. Vogelwelt 124, 389-400.
46. Woodroffe, G.L., Lawton, J.H. & Davidson, W.L. (1990). Patterns in the production of latrines by the water vole (Arvicola terrestris) in the North Yorkshire Moors and their use as indices of abundance in population surveys. J. Zool. (Lond.) 220, 439-445.