Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River

Detalhes bibliográficos
Autor(a) principal: Sanaiotti,TM.
Data de Publicação: 2015
Outros Autores: Junqueira,TG., Palhares,V., Aguiar-Silva,FH., Henriques,LMP., Oliveira,G., Guimarães,VY., Castro,V., Mota,D., Trombin,DF., Villar,DNA., Lara,KM., Fernandes,D., Castilho,L., Yosheno,E., Alencar,RM., Cesca,L., Dantas,SM., Laranjeiras,TO., Mathias,PC., Mendonça,CV.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000500190
Resumo: Abstract In the Brazilian Amazon, two monospecific genera, the Harpy Eagle and Crested Eagle have low densities and are classified by IUCN as Near Threatened due to habitat loss, deforestation, habitat degradation and hunting. In this study, we evaluate occurrence of these large raptors using the environmental surveys database from Belo Monte Hydroelectric Power Plant. Integrating the dataset from two methods, we plotted a distribution map along the Xingu River, including records over a 276-km stretch of river. Terrestrial surveys (RAPELD method) were more efficient for detecting large raptors than standardized aquatic surveys, although the latter were complementary in areas without modules. About 53% of the records were obtained during activities of wildlife rescue/flushing, vegetation suppression or in transit. Between 2012 and 2014, four Harpy Eagles were removed from the wild; two shooting victims, one injured by collision with power lines and one hit by a vehicle. Also, seven nests were mapped. The mean distance between Harpy Eagle records was 15 km along the river channel, with a mean of 20 km between nests near the channel, which allowed us to estimate 20 possible pairs using the alluvial forest, riverine forest and forest fragments. Territories of another ten pairs will probably be affected by inundation of the Volta Grande channel, which is far from the main river. The average distance between Crested Eagle records was 16 km along the river channel. The only nest found was 1.3 km away from a Harpy Eagle nest. The remnant forests are under threat of being replaced by cattle pastures, so we recommend that permanently protected riparian vegetation borders (APP) be guaranteed, and that forest fragments within 5 km of the river be conserved to maintain eagle populations.
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spelling Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu Riverneotropical raptorsAmazonhydroelectric power plantenvironmental impactAccipitridaeAbstract In the Brazilian Amazon, two monospecific genera, the Harpy Eagle and Crested Eagle have low densities and are classified by IUCN as Near Threatened due to habitat loss, deforestation, habitat degradation and hunting. In this study, we evaluate occurrence of these large raptors using the environmental surveys database from Belo Monte Hydroelectric Power Plant. Integrating the dataset from two methods, we plotted a distribution map along the Xingu River, including records over a 276-km stretch of river. Terrestrial surveys (RAPELD method) were more efficient for detecting large raptors than standardized aquatic surveys, although the latter were complementary in areas without modules. About 53% of the records were obtained during activities of wildlife rescue/flushing, vegetation suppression or in transit. Between 2012 and 2014, four Harpy Eagles were removed from the wild; two shooting victims, one injured by collision with power lines and one hit by a vehicle. Also, seven nests were mapped. The mean distance between Harpy Eagle records was 15 km along the river channel, with a mean of 20 km between nests near the channel, which allowed us to estimate 20 possible pairs using the alluvial forest, riverine forest and forest fragments. Territories of another ten pairs will probably be affected by inundation of the Volta Grande channel, which is far from the main river. The average distance between Crested Eagle records was 16 km along the river channel. The only nest found was 1.3 km away from a Harpy Eagle nest. The remnant forests are under threat of being replaced by cattle pastures, so we recommend that permanently protected riparian vegetation borders (APP) be guaranteed, and that forest fragments within 5 km of the river be conserved to maintain eagle populations.Instituto Internacional de Ecologia2015-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000500190Brazilian Journal of Biology v.75 n.3 suppl.1 2015reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.00614bminfo:eu-repo/semantics/openAccessSanaiotti,TM.Junqueira,TG.Palhares,V.Aguiar-Silva,FH.Henriques,LMP.Oliveira,G.Guimarães,VY.Castro,V.Mota,D.Trombin,DF.Villar,DNA.Lara,KM.Fernandes,D.Castilho,L.Yosheno,E.Alencar,RM.Cesca,L.Dantas,SM.Laranjeiras,TO.Mathias,PC.Mendonça,CV.eng2021-04-15T00:00:00Zoai:scielo:S1519-69842015000500190Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2021-04-15T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
title Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
spellingShingle Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
Sanaiotti,TM.
neotropical raptors
Amazon
hydroelectric power plant
environmental impact
Accipitridae
title_short Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
title_full Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
title_fullStr Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
title_full_unstemmed Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
title_sort Abundance of Harpy and Crested Eagles from a reservoir-impact area in the Low- and Mid-Xingu River
author Sanaiotti,TM.
author_facet Sanaiotti,TM.
Junqueira,TG.
Palhares,V.
Aguiar-Silva,FH.
Henriques,LMP.
Oliveira,G.
Guimarães,VY.
Castro,V.
Mota,D.
Trombin,DF.
Villar,DNA.
Lara,KM.
Fernandes,D.
Castilho,L.
Yosheno,E.
Alencar,RM.
Cesca,L.
Dantas,SM.
Laranjeiras,TO.
Mathias,PC.
Mendonça,CV.
author_role author
author2 Junqueira,TG.
Palhares,V.
Aguiar-Silva,FH.
Henriques,LMP.
Oliveira,G.
Guimarães,VY.
Castro,V.
Mota,D.
Trombin,DF.
Villar,DNA.
Lara,KM.
Fernandes,D.
Castilho,L.
Yosheno,E.
Alencar,RM.
Cesca,L.
Dantas,SM.
Laranjeiras,TO.
Mathias,PC.
Mendonça,CV.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Sanaiotti,TM.
Junqueira,TG.
Palhares,V.
Aguiar-Silva,FH.
Henriques,LMP.
Oliveira,G.
Guimarães,VY.
Castro,V.
Mota,D.
Trombin,DF.
Villar,DNA.
Lara,KM.
Fernandes,D.
Castilho,L.
Yosheno,E.
Alencar,RM.
Cesca,L.
Dantas,SM.
Laranjeiras,TO.
Mathias,PC.
Mendonça,CV.
dc.subject.por.fl_str_mv neotropical raptors
Amazon
hydroelectric power plant
environmental impact
Accipitridae
topic neotropical raptors
Amazon
hydroelectric power plant
environmental impact
Accipitridae
description Abstract In the Brazilian Amazon, two monospecific genera, the Harpy Eagle and Crested Eagle have low densities and are classified by IUCN as Near Threatened due to habitat loss, deforestation, habitat degradation and hunting. In this study, we evaluate occurrence of these large raptors using the environmental surveys database from Belo Monte Hydroelectric Power Plant. Integrating the dataset from two methods, we plotted a distribution map along the Xingu River, including records over a 276-km stretch of river. Terrestrial surveys (RAPELD method) were more efficient for detecting large raptors than standardized aquatic surveys, although the latter were complementary in areas without modules. About 53% of the records were obtained during activities of wildlife rescue/flushing, vegetation suppression or in transit. Between 2012 and 2014, four Harpy Eagles were removed from the wild; two shooting victims, one injured by collision with power lines and one hit by a vehicle. Also, seven nests were mapped. The mean distance between Harpy Eagle records was 15 km along the river channel, with a mean of 20 km between nests near the channel, which allowed us to estimate 20 possible pairs using the alluvial forest, riverine forest and forest fragments. Territories of another ten pairs will probably be affected by inundation of the Volta Grande channel, which is far from the main river. The average distance between Crested Eagle records was 16 km along the river channel. The only nest found was 1.3 km away from a Harpy Eagle nest. The remnant forests are under threat of being replaced by cattle pastures, so we recommend that permanently protected riparian vegetation borders (APP) be guaranteed, and that forest fragments within 5 km of the river be conserved to maintain eagle populations.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000500190
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000500190
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1519-6984.00614bm
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Internacional de Ecologia
publisher.none.fl_str_mv Instituto Internacional de Ecologia
dc.source.none.fl_str_mv Brazilian Journal of Biology v.75 n.3 suppl.1 2015
reponame:Brazilian Journal of Biology
instname:Instituto Internacional de Ecologia (IIE)
instacron:IIE
instname_str Instituto Internacional de Ecologia (IIE)
instacron_str IIE
institution IIE
reponame_str Brazilian Journal of Biology
collection Brazilian Journal of Biology
repository.name.fl_str_mv Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)
repository.mail.fl_str_mv bjb@bjb.com.br||bjb@bjb.com.br
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