Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Adaptations to the semi-aquatic habit and habitat
- 2 Physiological challenges in semi-aquatic mammals: swimming against the energetic tide
- 3 Diving capacity and foraging behaviour of the water shrew (Neomys fodiens)
- 4 Habitat use by water shrews, the smallest of amphibious mammals
- 5 The importance of the riparian environment as a habitat for British bats
- 6 A preliminary study of the behaviour of the European mink Mustela lutreola in Spain, by means of radiotracking
- 7 The demography of European otters Lutra lutra
- 8 Habitat use and conservation of otters (Lutra lutra) in Britain: a review
- 9 The relationship between riverbank habitat and prey availability and the distribution of otter (Lutra lutra) signs: an analysis using a geographical information system
- 10 Influence of altitude on the distribution, abundance and ecology of the otter (Lutra lutra)
- 11 Diets of semi-aquatic carnivores in northern Belarus, with implications for population changes
- 12 Otter (Lutra lutra) prey selection in relation to fish abundance and community structure in two different freshwater habitats
- 13 Diet, foraging behaviour and coexistence of African otters and the water mongoose
- 14 Feeding ecology of the smooth-coated otter Lutra perspicillata in the National Chambal Sanctuary, India
- 15 Population trends of hippopotami in the rivers of the Kruger National Park, South Africa
- 16 Reproductive strategies of female capybaras: dry-season gestation
- 17 The continuing decline of the European mink Mustela lutreola: evidence for the intraguild aggression hypothesis
- 18 Otters and pollution in Spain
- 19 The rapid impact of resident American mink on water voles: case studies in lowland England
- 20 Status, habitat use and conservation of giant otter in Peru
- Index
9 - The relationship between riverbank habitat and prey availability and the distribution of otter (Lutra lutra) signs: an analysis using a geographical information system
Published online by Cambridge University Press: 03 May 2010
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Adaptations to the semi-aquatic habit and habitat
- 2 Physiological challenges in semi-aquatic mammals: swimming against the energetic tide
- 3 Diving capacity and foraging behaviour of the water shrew (Neomys fodiens)
- 4 Habitat use by water shrews, the smallest of amphibious mammals
- 5 The importance of the riparian environment as a habitat for British bats
- 6 A preliminary study of the behaviour of the European mink Mustela lutreola in Spain, by means of radiotracking
- 7 The demography of European otters Lutra lutra
- 8 Habitat use and conservation of otters (Lutra lutra) in Britain: a review
- 9 The relationship between riverbank habitat and prey availability and the distribution of otter (Lutra lutra) signs: an analysis using a geographical information system
- 10 Influence of altitude on the distribution, abundance and ecology of the otter (Lutra lutra)
- 11 Diets of semi-aquatic carnivores in northern Belarus, with implications for population changes
- 12 Otter (Lutra lutra) prey selection in relation to fish abundance and community structure in two different freshwater habitats
- 13 Diet, foraging behaviour and coexistence of African otters and the water mongoose
- 14 Feeding ecology of the smooth-coated otter Lutra perspicillata in the National Chambal Sanctuary, India
- 15 Population trends of hippopotami in the rivers of the Kruger National Park, South Africa
- 16 Reproductive strategies of female capybaras: dry-season gestation
- 17 The continuing decline of the European mink Mustela lutreola: evidence for the intraguild aggression hypothesis
- 18 Otters and pollution in Spain
- 19 The rapid impact of resident American mink on water voles: case studies in lowland England
- 20 Status, habitat use and conservation of giant otter in Peru
- Index
Summary
Introduction
This chapter presents preliminary findings of a research programme to determine the factors that influenced the distribution of otter signs in the upper Tyne catchment, Northumberland, England, between 1993 and 1995. The work presented here considers two aspects of the research programme. Firstly, the effect of changing the sampling scale on the pattern of distribution of otter signs in the catchment is assessed. In this context, sampling scale is defined as the size of the sampling unit. Secondly, the relationships between the distribution of otter signs and the availability of different types of riverbank vegetation and the influence of prey availability are investigated.
In the majority of studies of habitat utilization by otters, the distribution of otter spraints has been used as an indicator of the presence or absence of otters (Jenkins & Burrows, 1980; Macdonald & Mason, 1983; Bas et al., 1984). A relationship between the distribution of otter signs and riverbank vegetation, in particular the availability of woodland and scrub habitats, was found in all of these studies. A similar relationship has been demonstrated using radiotelemetry techniques. Jefferies et al. (1986) showed that radio–tracked otters spent over 50% of their time in wooded areas, although only a few individuals were tracked. Green et al. (1984) showed that one of their radio–tracked otters sprainted more at centres of activity than elsewhere, although analysis of the movements of another individual showed no such relationship.
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- Behaviour and Ecology of Riparian Mammals , pp. 135 - 158Publisher: Cambridge University PressPrint publication year: 1998
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