Purpurea - Purple Heron - Southern Europe-reference-data_part

Morganti M, Viganò E, Berlusconi A, Cioccarelli S, Fasola M. 2021. Purpurea - Purple Heron - Southern Europe-reference-data_part. Movebank Data Repository. https://doi.org/10.5441/001/1.6tn1208h/2
The Purple Heron is a species of conservation concern in Europe, mainly threatened by the progressive degradation and reduction of wetlands. For future conservation practice, it is of pivotal importance to gather detailed knowledge of its habitat preferences. In June 2018, a nestling of Purple Heron from a sub-Alpine Lake in Northern Italy was equipped with a GPS/GSM device. Habitat selection during the post-fledging period (mid-July to mid-October) was analysed by superimposing the GPS locations to a fine-grained field-based map, discerning 14 habitat classes as well as narrow (<2 m) and wide (≥2 m) ditches. The contours of the home range were defined as the 99% kernel calculated on all the gathered locations, which were successively sub selected only retaining 2,017 locations representing the position of the bird every hour and all day long. Within the home range, the habitat availability was estimated by generating 10,000 random distributions of the locations. We firstly verified whether wide ditches were more frequently used by the heron if compared to narrow ones. Eventually, we calculated the ratio between the number of true and random locations falling into the different habitat classes, obtaining a series of class-specific selection ratios. We found a significant preference towards wide ditches compared to narrow ones. Freshly renewed reedbeds and cattail beds were strongly favoured, while high-bearing sedges and Black Alder were also significantly preferred but with lower indices. All the remaining habitats, including mature reedbeds, were significantly avoided. Our results reinforce the indication that the protection of minor landscape elements as ditches and small patches of wet habitats may be of pivotal importance to foster the long-term conservation of bird communities linked to the residual wetlands of the sub-Alpine belt.
animal movement,animal tracking,Ardea purpurea,purple heron,waterbirds
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DOIs of related Publications
  title = {Purpurea - Purple Heron - Southern Europe-reference-data_part},
  author = {Morganti, M and Viganò, E and Berlusconi, A and Cioccarelli, S and Fasola, M},
  year = {2021},
  URL = {http://dx.doi.org/10.5441/001/1.6tn1208h/2},
  doi = {doi:10.5441/001/1.6tn1208h/2},
  publisher = {Movebank data repository}
ID  - doi:10.5441/001/1.6tn1208h/2
T1  - Purpurea - Purple Heron - Southern Europe-reference-data_part
AU  - Morganti, Michelangelo
AU  - Viganò, Enrico
AU  - Berlusconi, Alessandro
AU  - Cioccarelli, Sara
AU  - Fasola, Mauro
Y1  - 2021/09/10
KW  - animal movement
KW  - animal tracking
KW  - Ardea purpurea
KW  - purple heron
KW  - waterbirds
KW  - Ardea purpurea
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.6tn1208h/2
DO  - doi:10.5441/001/1.6tn1208h/2
ER  -