Food caching by a Eurasian otter

J. Lanszki, Attila Mórocz, Jim W H Conroy

Research output: Contribution to journalArticle

Abstract

In early spring of 2007, unusual feeding behaviour was observed for the Eurasian otter (Lutra lutra) when a cache of toads (n = 18), black bullheads (n = 2) and great diving beetles (min. 58 ind.) were found in a hollow tree-trunk on the shores of an oxbow lake near the River Danube. Spraint analysis identified the primary food of otters in the area to be fish, with non-fish (buffer) prey of very low importance. As the otter consumed almost exclusively fish, and appeared to store mainly buffer food items, this may indicate that either preferred fish were less available (limited) or that non-fish items were relatively more abundant for a short period during the mild 'cold' winter and spring period. The otter had abandoned this particular cache. Food caching is an important dietary adaptation for many species, providing readily available food during periods when fresh food may be difficult to find.

Original languageEnglish
Pages (from-to)43-46
Number of pages4
JournalFolia Zoologica
Volume60
Issue number1
Publication statusPublished - Mar 2011

Fingerprint

caching
food
buffers
fish
oxbow lakes
Lutra lutra
Danube River
raw foods
toads
feeding behavior
tree trunk
oxbow lake
Coleoptera
toad
diving
winter
beetle
river

Keywords

  • Behaviour
  • Cached food
  • Danube
  • Lutra lutra
  • Spraint analysis

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Lanszki, J., Mórocz, A., & Conroy, J. W. H. (2011). Food caching by a Eurasian otter. Folia Zoologica, 60(1), 43-46.

Food caching by a Eurasian otter. / Lanszki, J.; Mórocz, Attila; Conroy, Jim W H.

In: Folia Zoologica, Vol. 60, No. 1, 03.2011, p. 43-46.

Research output: Contribution to journalArticle

Lanszki, J, Mórocz, A & Conroy, JWH 2011, 'Food caching by a Eurasian otter', Folia Zoologica, vol. 60, no. 1, pp. 43-46.
Lanszki J, Mórocz A, Conroy JWH. Food caching by a Eurasian otter. Folia Zoologica. 2011 Mar;60(1):43-46.
Lanszki, J. ; Mórocz, Attila ; Conroy, Jim W H. / Food caching by a Eurasian otter. In: Folia Zoologica. 2011 ; Vol. 60, No. 1. pp. 43-46.
@article{1c4a4a8c775f4710b665c95068f43e21,
title = "Food caching by a Eurasian otter",
abstract = "In early spring of 2007, unusual feeding behaviour was observed for the Eurasian otter (Lutra lutra) when a cache of toads (n = 18), black bullheads (n = 2) and great diving beetles (min. 58 ind.) were found in a hollow tree-trunk on the shores of an oxbow lake near the River Danube. Spraint analysis identified the primary food of otters in the area to be fish, with non-fish (buffer) prey of very low importance. As the otter consumed almost exclusively fish, and appeared to store mainly buffer food items, this may indicate that either preferred fish were less available (limited) or that non-fish items were relatively more abundant for a short period during the mild 'cold' winter and spring period. The otter had abandoned this particular cache. Food caching is an important dietary adaptation for many species, providing readily available food during periods when fresh food may be difficult to find.",
keywords = "Behaviour, Cached food, Danube, Lutra lutra, Spraint analysis",
author = "J. Lanszki and Attila M{\'o}rocz and Conroy, {Jim W H}",
year = "2011",
month = "3",
language = "English",
volume = "60",
pages = "43--46",
journal = "Folia Zoologica",
issn = "0139-7893",
publisher = "Academy of Sciences of the Czech Republic",
number = "1",

}

TY - JOUR

T1 - Food caching by a Eurasian otter

AU - Lanszki, J.

AU - Mórocz, Attila

AU - Conroy, Jim W H

PY - 2011/3

Y1 - 2011/3

N2 - In early spring of 2007, unusual feeding behaviour was observed for the Eurasian otter (Lutra lutra) when a cache of toads (n = 18), black bullheads (n = 2) and great diving beetles (min. 58 ind.) were found in a hollow tree-trunk on the shores of an oxbow lake near the River Danube. Spraint analysis identified the primary food of otters in the area to be fish, with non-fish (buffer) prey of very low importance. As the otter consumed almost exclusively fish, and appeared to store mainly buffer food items, this may indicate that either preferred fish were less available (limited) or that non-fish items were relatively more abundant for a short period during the mild 'cold' winter and spring period. The otter had abandoned this particular cache. Food caching is an important dietary adaptation for many species, providing readily available food during periods when fresh food may be difficult to find.

AB - In early spring of 2007, unusual feeding behaviour was observed for the Eurasian otter (Lutra lutra) when a cache of toads (n = 18), black bullheads (n = 2) and great diving beetles (min. 58 ind.) were found in a hollow tree-trunk on the shores of an oxbow lake near the River Danube. Spraint analysis identified the primary food of otters in the area to be fish, with non-fish (buffer) prey of very low importance. As the otter consumed almost exclusively fish, and appeared to store mainly buffer food items, this may indicate that either preferred fish were less available (limited) or that non-fish items were relatively more abundant for a short period during the mild 'cold' winter and spring period. The otter had abandoned this particular cache. Food caching is an important dietary adaptation for many species, providing readily available food during periods when fresh food may be difficult to find.

KW - Behaviour

KW - Cached food

KW - Danube

KW - Lutra lutra

KW - Spraint analysis

UR - http://www.scopus.com/inward/record.url?scp=79952832679&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952832679&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:79952832679

VL - 60

SP - 43

EP - 46

JO - Folia Zoologica

JF - Folia Zoologica

SN - 0139-7893

IS - 1

ER -