Application of a new technique to studying the grazing behaviour of roe deer (Capreolus capreolus)

Hall, Stephen J. G.; Neveu, H.; Sempéré, A.

doi:10.1016/0168-1591(95)00651-6

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…Considering the species in ascending order of elevation of find sites, the beaver and moose are indeed animals of well‐watered relatively low‐lying habitats (Corbet 1966, Kitchener 2001). The roe deer, though adaptable to a broad range of habitats (Hall et al 1996), has been described as having floodplain as its optimal habitat (Barančeková 2004). The red deer is a habitat generalist found in upland as well as lowland areas (Rackham 2006).…”

Section: Discussionmentioning

confidence: 99%

A comparative analysis of the habitat of the extinct aurochs and other prehistoric mammals in Britain

Hall¹

2008

Ecography

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The present study tests the hypothesis that the habitat of the globally extinct aurochs (Bos primigenius L.) was primarily riverine flat-lands. Landscape features in Britain were analyzed for sites with Late Pleistocene and postglacial finds of aurochs (n=188), and, for comparison, wolf (101), brown bear (96), red deer (73), beaver (68), roe deer (46) and elk (23). Find sites were defined as Ordnance Survey 1 km map squares containing 1 or more finds. For each, spot height above sea level, heights of contour lines, flatness of terrain, total length of watercourses, and presence of woods, rock and water features were noted. Comparisons of find sites among species (Kruskal-Wallis test) show significant differences that accord with knowledge of present-day habitat preferences at the landscape level. Considering the species separately each find site was then compared with a randomly selected control map square within 10 km. Compared with their respective control squares, find sites of beaver have, today, a stronger association with presence of lakes; those of brown bear and wolf with presence of cliffs and rock outcrops; and those of aurochs with absence of woodland and with lower elevation and greater flatness. The concordance of these findings with the present-day habitats of the extant species suggests valid inferences can be made about the habitat preference of the extinct aurochs. On this basis the aurochs appears, as hypothesized, to have selected low-lying, flat ground, which (indicated by its present-day use for purposes other than woodland) was relatively fertile

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Section: Discussionmentioning

confidence: 99%

A comparative analysis of the habitat of the extinct aurochs and other prehistoric mammals in Britain

Hall¹

2008

Ecography

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“…During a bout an herbivore forages on groups of feeding locations located a short distance apart and called 'feeding site', the distance between feeding sites being much greater. Bouts last up to a few minutes in roe deer [12] and in blacktailed deer Odocoileus hemionus sitkensis [11]. In red deer, Hester et al [14] have estimated that foraging bouts on a grass / heather mosaic last on average 3 minutes.…”

Section: Resultsmentioning

confidence: 99%

Foraging behaviour of red deer Cervus elaphus as a function of the relative availability of two tree species

Chevallier-Redor¹,

Verdier²,

Dumont³

2001

Anim. Res.

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-Cervid populations are rapidly increasing in many part of Western Europe, where they cause damage to forest production. This necessitates a better understanding of what determines their dietary choices. In this experiment, we investigated the relationship between the relative availability of two tree species and diet selection of red deer Cervus elaphus. Three hypotheses were tested: (i) preference for rarity, frequently asserted by foresters, (ii) preference for the more abundant profitable species, as predicted by optimal foraging models, and (iii) frequency-independent selectivity, as already observed in moose and roe deer. Six red deer hinds were therefore observed in shortduration tests when offered two plant species, willow Salix caprea and ash Fraxinus excelsior, in varying proportions. The relation between the relative consumption and availability of the two plant species revealed that red deer prefer ash to willow, and that their short-term selectivity is not a frequency-dependent process. Individual animals differed in the intensity of their preference, but all reacted similarly to variations in the relative availability of the two plant species. Our results advance our understanding of the choices of red deer at the feeding site scale, but further research is needed to propose management practices, which would take advantage of their frequency-independent selectivity. Cervus elaphus / browsing / diet selection / food availability / Salix caprea / Fraxinus excelsiorRésumé -Choix alimentaires du cerf Cervus elaphus selon la disponibilité relative de deux espèces d'arbres. Les populations de Cervidés sont en rapide augmentation en Europe de l'ouest, où elles causent des dégâts à la forêt. Ceci nécessite de mieux comprendre les déterminants de leurs choix alimentaires. Nous avons étudié comment la disponibilité relative de deux espèces d'arbres influence les choix alimentaires du cerf Cervus elaphus en testant trois hypothèses : (i) une sélecti-vité accrue pour les espèces rares souvent évoquée par les forestiers, (ii) une sélectivité accrue pour l'espèce préférée lorsque son abondance augmente, prédite par les modèles d'optimisation, et (iii) une sélectivité indépendante de la disponibilité relative des espèces végétales comme cela a déjà été montré chez l'élan et le chevreuil. Nous avons pour cela observé les choix alimentaires de six biches dans des tests de courte durée, lorsqu'on faisait varier l'abondance relative du saule Salix caprea par N. Chevallier-Redor et al. 58

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“…A graphical method [ 33 ] was used to describe and quantify foraging behavior. A trajectory is plotted of cumulated time spent grazing ( x -axis) against cumulated time spent in interval behavior ( y -axis).…”

Section: Methodsmentioning

confidence: 99%

Sheep in Species-Rich Temperate Grassland: Combining Behavioral Observations with Vegetation Characterization

Hall

Bunce

Arney

et al. 2020

Animals

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Foraging behavior of livestock in species-rich, less intensively managed grassland communities will require different methodologies from those appropriate in floristically simple environments. In this pilot study on sheep in species-rich grassland in northern Estonia, foraging behavior and the plant species of the immediate area grazed by the sheep were registered by continually-recording Go-Pro cameras. From three days of observation of five sheep (706 animal-minutes), foraging behavior was documented. Five hundred and thirty-six still images were sampled, and a plant species list was compiled for each. Each plant species was assigned a score indicating its location, in the ecophysiological sense, on the main environmental gradient. The scores of the plant species present were averaged for each image. Thus, the fine structure of foraging behavior could be studied in parallel with the vegetation of the precise area being grazed. As expected, there was considerable individual variation, and we characterized foraging behavior by quantifying the patterns of interspersion of grazing and non-grazing behaviors. This combination of behavior recording and vegetation classification could enable a numerical analysis of the responses of grazing livestock to vegetation conditions.

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Application of a new technique to studying the grazing behaviour of roe deer (Capreolus capreolus)

Cited by 6 publications

References 19 publications

A comparative analysis of the habitat of the extinct aurochs and other prehistoric mammals in Britain

A comparative analysis of the habitat of the extinct aurochs and other prehistoric mammals in Britain

Foraging behaviour of red deer Cervus elaphus as a function of the relative availability of two tree species

Sheep in Species-Rich Temperate Grassland: Combining Behavioral Observations with Vegetation Characterization

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