@article{fdi:010079627,
  title = {{H}uman activity and the drying up of rivers determine abundance and spatial distribution of {B}lack {S}torks {C}iconia nigra on their wintering grounds},
  author = {{C}hevallier, {D}amien and {L}e {M}aho, {Y}. and {B}aillon, {F}ran{\c{c}}ois and {D}uponnois, {R}obin and {D}ieulin, {C}laudine and {B}rossault, {P}. and {F}ranclieu de, {P}. and {L}orge, {P}. and {A}urouet, {A}. and {M}assemin, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}apsule {T}he drying up of rivers results in the fragmentation of home ranges over the winter period, birds avoid areas of high human activity. {A}ims {T}o investigate the impact of human activity and habitat characteristics on the distribution of {B}lack {S}torks {C}iconia nigra on wintering grounds in {W}est {A}frica. {M}ethods {S}easonal variations in wintering home-range size and habitat selection of seven {B}lack {S}torks were studied using satellite tracking from 1998 to 2006. {A} {B}lack {S}tork population was followed in the field from 2003 to 2005 in the {N}azinga {G}ame {R}anch ({B}urkina {F}aso) and {G}hana. {R}esults {A}dults and sub adults (n = 5) have smaller mean global ranges than juveniles (n = 2) (532.92 +/- 237.17 and 2463.18 +/- 405.10 km2 respectively) and smaller mean core ranges (8.83 +/- 10.01 and 162.14 +/- 131.56 km2 respectively) suggesting that juveniles prospect widely for suitable habitats during their first winter period. {I}n all birds the home range becomes increasingly fragmented from {N}ovember to {F}ebruary. {T}wo main factors seem to be involved in this fragmentation: (1) {B}lack {S}torks seem to prefer locations on perennial rivers but many rivers in this region gradually dry out into separated pools at this time of year; and (2) monthly variation of human activity along the rivers. {O}ccurrence of {B}lack {S}torks is inversely proportional to human activity, irrelevant of whether open habitat is available at the location. {W}hen human pressure is moderate, open habitats and low tree canopy favour the presence of {B}lack {S}torks. {C}onclusion {W}e propose that conservation measures should include the creation of reserves located along perennial rivers, away from areas of human activity.},
  keywords = {},
  booktitle = {},
  journal = {{B}ird {S}tudy},
  volume = {57},
  numero = {3},
  pages = {369--380},
  ISSN = {0006-3657},
  year = {2010},
  DOI = {10.1080/00063651003678467},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079627},
}