@article{
 title = {Spatial variation in springtime food resources influences the winter body mass of roe deer fawn},
 type = {article},
 year = {2003},
 pages = {363-369},
 volume = {137},
 id = {67af233b-98fe-3fba-a711-b1255d35c98b},
 created = {2010-11-03T21:13:25.000Z},
 file_attached = {true},
 profile_id = {976aa121-3316-304c-8340-7ca54d70abe6},
 last_modified = {2017-03-16T14:38:37.564Z},
 read = {true},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Pettorelli2003},
 source_type = {article},
 short_title = {Spatial variation in springtime food resources inf},
 private_publication = {false},
 abstract = {It is well established that the dynamics of mammalian populations
vary in time, in relation to density and weather, and often in interaction
with phenotypic differences (sex, age and social status). Habitat
quality has recently been identified as another significant source
of individual variability in vital rates of deer, including roe deer
where spatial variations in fawn body mass were found to be only
about a tenth of temporal variations. The approach used was to classify
the habitat into blocks a priori, and to analyse variation in animal
performance among the predefined areas. In a fine-grained approach,
here we use data collected over 24 years on 1,235 roe deer fawns
captured at known locations and the plant species composition sampled
in 2001 at 578 sites in the Chizé forest to determine the spatial
structure at a fine scale of both vegetation and winter body mass
of fawns, and then to determine links between the two. Space and
time played a nearly equal role in determining fawn body masses of
both sexes, each accounting for about 20% of variance and without
any interaction between them. The spatial distribution of fawn body
mass was perennial over the 24 years considered and predicted values
showed a 2 kg range according to location in the reserve, which is
much greater than suggested in previous work and is enough to have
strong effects on fawn survival. The spatial distribution and the
range of predicted body masses were closely similar in males and
females. The result of this study is therefore consistent with the
view that the life history traits of roe deer are only weakly influenced
by sexual selection. The occurrence of three plant species that are
known to be important food items in spring/summer roe deer diets,
hornbeam (Carpinus betulus), bluebell (Hyacinthoides sp.) and Star
of Bethlehem (Ornithogalum sp.) was positively related to winter
fawn body mass. The occurrence of species known to be avoided in
spring/summer roe deer diets [e.g. butcher's broom (Ruscus aculeatus)
and beech (Fagus sylvatica)], was negatively related to fawn body
mass. We conclude that the spatial variation in the body mass of
fawns in winter in this forest is as important as the temporal variation,
and that the distribution of plant species that are actively selected
during spring and summer is an important determinant of spatial variation
in winter fawn body mass. The availability of these plants is therefore
likely to be a key factor in the dynamics of roe deer populations.},
 bibtype = {article},
 author = {Pettorelli, N and Dray, Stéphane and Gaillard, J M and Chessel, D and Duncan, P and Illius, A and Guillon, N and Klein, F and Van Laere, G},
 journal = {Oecologia},
 keywords = {ACP,Geostatistique,Multivarié,Spatial}
}

{"_id":"DZrqFD43aPxKrJvj9","bibbaseid":"pettorelli-dray-gaillard-chessel-duncan-illius-guillon-klein-etal-spatialvariationinspringtimefoodresourcesinfluencesthewinterbodymassofroedeerfawn-2003","author_short":["Pettorelli, N.","Dray, S.","Gaillard, J., M.","Chessel, D.","Duncan, P.","Illius, A.","Guillon, N.","Klein, F.","Van Laere, G."],"bibdata":{"title":"Spatial variation in springtime food resources influences the winter body mass of roe deer fawn","type":"article","year":"2003","pages":"363-369","volume":"137","id":"67af233b-98fe-3fba-a711-b1255d35c98b","created":"2010-11-03T21:13:25.000Z","file_attached":"true","profile_id":"976aa121-3316-304c-8340-7ca54d70abe6","last_modified":"2017-03-16T14:38:37.564Z","read":"true","starred":false,"authored":"true","confirmed":"true","hidden":false,"citation_key":"Pettorelli2003","source_type":"article","short_title":"Spatial variation in springtime food resources inf","private_publication":false,"abstract":"It is well established that the dynamics of mammalian populations\nvary in time, in relation to density and weather, and often in interaction\nwith phenotypic differences (sex, age and social status). Habitat\nquality has recently been identified as another significant source\nof individual variability in vital rates of deer, including roe deer\nwhere spatial variations in fawn body mass were found to be only\nabout a tenth of temporal variations. The approach used was to classify\nthe habitat into blocks a priori, and to analyse variation in animal\nperformance among the predefined areas. In a fine-grained approach,\nhere we use data collected over 24 years on 1,235 roe deer fawns\ncaptured at known locations and the plant species composition sampled\nin 2001 at 578 sites in the Chizé forest to determine the spatial\nstructure at a fine scale of both vegetation and winter body mass\nof fawns, and then to determine links between the two. Space and\ntime played a nearly equal role in determining fawn body masses of\nboth sexes, each accounting for about 20% of variance and without\nany interaction between them. The spatial distribution of fawn body\nmass was perennial over the 24 years considered and predicted values\nshowed a 2 kg range according to location in the reserve, which is\nmuch greater than suggested in previous work and is enough to have\nstrong effects on fawn survival. The spatial distribution and the\nrange of predicted body masses were closely similar in males and\nfemales. The result of this study is therefore consistent with the\nview that the life history traits of roe deer are only weakly influenced\nby sexual selection. The occurrence of three plant species that are\nknown to be important food items in spring/summer roe deer diets,\nhornbeam (Carpinus betulus), bluebell (Hyacinthoides sp.) and Star\nof Bethlehem (Ornithogalum sp.) was positively related to winter\nfawn body mass. The occurrence of species known to be avoided in\nspring/summer roe deer diets [e.g. butcher's broom (Ruscus aculeatus)\nand beech (Fagus sylvatica)], was negatively related to fawn body\nmass. We conclude that the spatial variation in the body mass of\nfawns in winter in this forest is as important as the temporal variation,\nand that the distribution of plant species that are actively selected\nduring spring and summer is an important determinant of spatial variation\nin winter fawn body mass. The availability of these plants is therefore\nlikely to be a key factor in the dynamics of roe deer populations.","bibtype":"article","author":"Pettorelli, N and Dray, Stéphane and Gaillard, J M and Chessel, D and Duncan, P and Illius, A and Guillon, N and Klein, F and Van Laere, G","journal":"Oecologia","keywords":"ACP,Geostatistique,Multivarié,Spatial","bibtex":"@article{\n title = {Spatial variation in springtime food resources influences the winter body mass of roe deer fawn},\n type = {article},\n year = {2003},\n pages = {363-369},\n volume = {137},\n id = {67af233b-98fe-3fba-a711-b1255d35c98b},\n created = {2010-11-03T21:13:25.000Z},\n file_attached = {true},\n profile_id = {976aa121-3316-304c-8340-7ca54d70abe6},\n last_modified = {2017-03-16T14:38:37.564Z},\n read = {true},\n starred = {false},\n authored = {true},\n confirmed = {true},\n hidden = {false},\n citation_key = {Pettorelli2003},\n source_type = {article},\n short_title = {Spatial variation in springtime food resources inf},\n private_publication = {false},\n abstract = {It is well established that the dynamics of mammalian populations\nvary in time, in relation to density and weather, and often in interaction\nwith phenotypic differences (sex, age and social status). Habitat\nquality has recently been identified as another significant source\nof individual variability in vital rates of deer, including roe deer\nwhere spatial variations in fawn body mass were found to be only\nabout a tenth of temporal variations. The approach used was to classify\nthe habitat into blocks a priori, and to analyse variation in animal\nperformance among the predefined areas. In a fine-grained approach,\nhere we use data collected over 24 years on 1,235 roe deer fawns\ncaptured at known locations and the plant species composition sampled\nin 2001 at 578 sites in the Chizé forest to determine the spatial\nstructure at a fine scale of both vegetation and winter body mass\nof fawns, and then to determine links between the two. Space and\ntime played a nearly equal role in determining fawn body masses of\nboth sexes, each accounting for about 20% of variance and without\nany interaction between them. The spatial distribution of fawn body\nmass was perennial over the 24 years considered and predicted values\nshowed a 2 kg range according to location in the reserve, which is\nmuch greater than suggested in previous work and is enough to have\nstrong effects on fawn survival. The spatial distribution and the\nrange of predicted body masses were closely similar in males and\nfemales. The result of this study is therefore consistent with the\nview that the life history traits of roe deer are only weakly influenced\nby sexual selection. The occurrence of three plant species that are\nknown to be important food items in spring/summer roe deer diets,\nhornbeam (Carpinus betulus), bluebell (Hyacinthoides sp.) and Star\nof Bethlehem (Ornithogalum sp.) was positively related to winter\nfawn body mass. The occurrence of species known to be avoided in\nspring/summer roe deer diets [e.g. butcher's broom (Ruscus aculeatus)\nand beech (Fagus sylvatica)], was negatively related to fawn body\nmass. We conclude that the spatial variation in the body mass of\nfawns in winter in this forest is as important as the temporal variation,\nand that the distribution of plant species that are actively selected\nduring spring and summer is an important determinant of spatial variation\nin winter fawn body mass. The availability of these plants is therefore\nlikely to be a key factor in the dynamics of roe deer populations.},\n bibtype = {article},\n author = {Pettorelli, N and Dray, Stéphane and Gaillard, J M and Chessel, D and Duncan, P and Illius, A and Guillon, N and Klein, F and Van Laere, G},\n journal = {Oecologia},\n keywords = {ACP,Geostatistique,Multivarié,Spatial}\n}","author_short":["Pettorelli, N.","Dray, S.","Gaillard, J., M.","Chessel, D.","Duncan, P.","Illius, A.","Guillon, N.","Klein, F.","Van Laere, G."],"urls":{"Paper":"https://bibbase.org/service/mendeley/2845861/file/757a5330-1c8f-9329-5f1a-53f1df80105e/2003-Spatial_variation_in_springtime_food_resources_influences_the_winter_body_mass_of_roe_deer_fawn.pdf.pdf"},"biburl":"https://bibbase.org/service/mendeley/2845861","bibbaseid":"pettorelli-dray-gaillard-chessel-duncan-illius-guillon-klein-etal-spatialvariationinspringtimefoodresourcesinfluencesthewinterbodymassofroedeerfawn-2003","role":"author","keyword":["ACP","Geostatistique","Multivarié","Spatial"],"metadata":{"authorlinks":{}},"downloads":0},"bibtype":"article","biburl":"https://bibbase.org/service/mendeley/2845861","dataSources":["2252seNhipfTmjEBQ"],"keywords":["acp","geostatistique","multivarié","spatial"],"search_terms":["spatial","variation","springtime","food","resources","influences","winter","body","mass","roe","deer","fawn","pettorelli","dray","gaillard","chessel","duncan","illius","guillon","klein","van laere"],"title":"Spatial variation in springtime food resources influences the winter body mass of roe deer fawn","year":2003}