scholarly journals Experimental evidence of memory-based foraging decisions in a large wild mammal

2020 ◽  
Author(s):  
Nathan Ranc ◽  
Paul R. Moorcroft ◽  
Federico Ossi ◽  
Francesca Cagnacci
Keyword(s):  
Home Range ◽  
Temporal Dynamics ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Movement Behavior ◽  
Distributed Resources ◽  
Movement Model ◽  
Foraging Decisions ◽  
In The Wild ◽  
Spatio Temporal

AbstractMany animals restrict their movements to a characteristic home range. This pattern of constrained space-use is thought to result from the foraging benefits of memorizing the locations and quality of heterogeneously distributed resources. However, due to the confounding effects of sensory perception, the role of memory in home range movement behavior lacks unequivocal evidence in the wild. Here, we analyze the foraging decisions of a large mammal during a field resource manipulation experiment designed to disentangle the effects of memory and perception. Using a cognitive movement model, we demonstrate that roe deer (Capreolus capreolus) rely on memory, not perception, to track the spatio-temporal dynamics of resources within their home range. Our findings show a memory-based spatial transition model parametrized with experimental data can successfully be used to quantify cognitive processes and to predict how animals respond to resource heterogeneity in space and time.

scholarly journals Experimental evidence of memory-based foraging decisions in a large wild mammal

2021 ◽  
Vol 118 (15) ◽  
pp. e2014856118
Author(s):  
Nathan Ranc ◽  
Paul R. Moorcroft ◽  
Federico Ossi ◽  
Francesca Cagnacci
Keyword(s):  
Home Range ◽  
Cognitive Processes ◽  
Animal Movement ◽  
Roe Deer ◽  
Spatial Behavior ◽  
Movement Behavior ◽  
Recent Experience ◽  
Distributed Resources ◽  
Foraging Decisions ◽  
In The Wild

Many animals restrict their movements to a characteristic home range. This constrained pattern of space use is thought to result from the foraging benefits of memorizing the locations and quality of heterogeneously distributed resources. However, due to the confounding effects of sensory perception, the role of memory in home-range movement behavior lacks definitive evidence in the wild. Here, we analyze the foraging decisions of a large mammal during a field resource manipulation experiment designed to disentangle the effects of memory and perception. We parametrize a mechanistic model of spatial transitions using experimental data to quantify the cognitive processes underlying animal foraging behavior and to predict how individuals respond to resource heterogeneity in space and time. We demonstrate that roe deer (Capreolus capreolus) rely on memory, not perception, to track the spatiotemporal dynamics of resources within their home range. Roe deer foraging decisions were primarily based on recent experience (half-lives of 0.9 and 5.6 d for attribute and spatial memory, respectively), enabling them to adapt to sudden changes in resource availability. The proposed memory-based model was able to both quantify the cognitive processes underlying roe deer behavior and accurately predict how they shifted resource use during the experiment. Our study highlights the fact that animal foraging decisions are based on incomplete information on the locations of available resources, a factor that is critical to developing accurate predictions of animal spatial behavior but is typically not accounted for in analyses of animal movement in the wild.

scholarly journals Memory drives the formation of animal home ranges: evidence from a reintroduction

2020 ◽  
Author(s):  
Nathan Ranc ◽  
Francesca Cagnacci ◽  
Paul Moorcroft
Keyword(s):  
Home Range ◽  
Empirical Data ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Home Ranges ◽  
Primary Process ◽  
Movement Model ◽  
Large Mammal ◽  
Resource Preference

Most animals live in a characteristic home range, a space-use pattern thought to emerge from the benefits of memory-based movements; however, a general model for characterizing and predicting their formation in the absence of territoriality has been lacking. Here, we use a mechanistic movement model to quantify the role of memory in the movements of a large mammal reintroduced into a novel environment, and to predict observed patterns of home range emergence. We show that an interplay between memory and resource preferences is the primary process influencing the movements of reintroduced roe deer (Capreolus capreolus). Our memory-based model fitted with empirical data successfully predicts the formation of home ranges, as well as emerging properties of movement and revisits observed in the reintroduced animals. These results provide a quantitative framework for combining memory-based movements, resource preference and the emergence of home ranges in nature.

Ecological correlates of home-range size in spring–summer for female roe deer ( Capreolus capreolus ) in a deciduous woodland

2005 ◽  
Vol 267 (03) ◽  
pp. 301 ◽  
Author(s):  
Sonia Saïd ◽  
Jean-Michel Gaillard ◽  
Patrick Duncan ◽  
Nadine Guillon ◽  
Noël Guillon ◽  
...  
Keyword(s):  
Home Range ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Home Range Size ◽  
Range Size ◽  
Deciduous Woodland ◽  
Ecological Correlates

Does land use within the home range drive the exposure of roe deer (Capreolus capreolus) to two abortive pathogens in a rural agro-ecosystem?

2014 ◽  
Vol 59 (4) ◽  
pp. 571-581 ◽  
Author(s):  
Julie Sevila ◽  
Céline Richomme ◽  
Hervé Hoste ◽  
Mónica G. Candela ◽  
Emmanuelle Gilot-Fromont ◽  
...  
Keyword(s):  
Land Use ◽  
Home Range ◽  
Roe Deer ◽  
Capreolus Capreolus

scholarly journals Wild ungulates in Jordan: past, present, and forthcoming opportunities

2021 ◽  
Vol 13 (9) ◽  
pp. 19338-19351
Author(s):  
Ehab Eid ◽  
David Mallon
Keyword(s):  
Cervus Elaphus ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Fallow Deer ◽  
Current Status ◽  
Wild Ungulates ◽  
Equus Hemionus ◽  
Wild Ass ◽  
In The Wild ◽  
Arabian Oryx

Twelve species of ungulates are reported from the wild in Jordan. Three of these, Addax nasomaculatus (Addax), Bos primigenius (Aurochs), and Cervus elaphus (Red Deer) are known only from archaeological excavations. Dama mesopotamica (Mesopotamian Fallow Deer), Oryx leucoryx (Arabian Oryx) and Equus hemionus hemippus (Syrian Wild Ass) have been regionally extirpated in the wild. A semi-captive population of Persian Onager (E. h. hemionus) is held in Shumari Wildlife Reserve. The Arabian Oryx is also managed in semi-captive conditions in two reserves. Except the commonly occurring Wild Boar (Sus scrofa), other surviving ungulate species continue to be under serious threat. Gazella gazella (Palestinian Mountain Gazelle), Capreolus capreolus (European Roe Deer), Gazella marica (Arabian Sand Gazelle), and Gazella dorcas (Dorcas Gazelle) are Critically Endangered, and Capra nubiana (Nubian Ibex) is Endangered in the region. This paper provides a review of the historical and current status of wild ungulates in Jordan, listing the threats and conservation measures and provides recommendations for management and conservation in the future.

scholarly journals Size of winter home range of roe deer Capreolus capreolus in two forest areas with artificial feeding in Sweden

1996 ◽  
Vol 2 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Christel Guillet ◽  
Roger Bergström ◽  
Göran Cederlund
Keyword(s):  
Home Range ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Artificial Feeding

Use of space and habitat selection by roe deer Capreolus capreolus in a Mediterranean coastal area: how does woods landscape affect home range?

2006 ◽  
Vol 24 (2) ◽  
pp. 181-188 ◽  
Author(s):  
Paolo Lamberti ◽  
Lorenza Mauri ◽  
Enrico Merli ◽  
Stefania Dusi ◽  
Marco Apollonio
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
Coastal Area ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Use Of Space

Experimental evidence for density-dependence of home-range size in roe deer ( Capreolus capreolus L.): a comparison of two long-term studies

Oecologia ◽  
2004 ◽  
Vol 139 (3) ◽  
pp. 478-485 ◽  
Author(s):  
P. Kjellander ◽  
A. J. M. Hewison ◽  
O. Liberg ◽  
J.-M. Angibault ◽  
E. Bideau ◽  
...  
Keyword(s):  
Home Range ◽  
Density Dependence ◽  
Experimental Evidence ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Home Range Size ◽  
Range Size ◽  
Long Term Studies

Seasonal migration and home range of roe deer (Capreolus capreolus) in the Italian eastern Alps

2007 ◽  
Vol 85 (2) ◽  
pp. 280-289 ◽  
Author(s):  
M. Ramanzin ◽  
E. Sturaro ◽  
D. Zanon
Keyword(s):  
Home Range ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
High Elevation ◽  
Climatic Conditions ◽  
Seasonal Migration ◽  
Migration Strategy ◽  
Mountain Areas ◽  
Winter Range ◽  
Short Period

Although it has been demonstrated that European roe deer ( Capreolus capreolus (L. 1758)) may migrate seasonally in areas with snow gradients, this behaviour remains scarcely understood. From 1999 to 2002, radio-tracking techniques in an Italian alpine area showed that 40% of the 32 monitored roe deer migrated (12.0 ± 6.2 km, mean ± SD) from the high-elevation summer ranges to the low-elevation winter ranges. Proportions of migratory deer were similar for fawns and adults and for males and females. We documented a mixed migration strategy, with most deer migrating once to the winter range in years of heavy snowfalls, but many deer migrating inconsistently or only for a short period to the winter range in one year with very scarce snowfalls. Seasonal home-range sizes were similar for migratory and stationary deer, except in a winter with very shallow snow when migrators used unusually large home ranges. In all seasons, migrators showed a lower within home range site fidelity than did stationary deer. Our results indicate that seasonal migrations may be a common strategy exhibited by roe deer living in mountain areas to avoid deep snow, and that variability in climatic conditions might be responsible for the development of variable spatial strategies.

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