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Citation for Study 26036

Citation title: "Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents an evolutionarily significant unit within the genus Atelopus ".

Study name: "Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents an evolutionarily significant unit within the genus Atelopus ".

This study is part of submission 26036 (Status: Published).

Citation

Jorge R.F., Magnusson W.E., Silva D.A., Polo ?.M., & Lima A.P. 2020. Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents an evolutionarily significant unit within the genus Atelopus. Journal of Zoological Systematics and Evolutionary Research, .

Authors

• Jorge R.F. (submitter) +5521979858790
• Magnusson W.E.
• Silva D.A.
• Polo ?.M.
• Lima A.P.

Abstract

The Manaus harlequin frog is an evolutionarily significant clade within the Atelopus hoogmoedi species complex. Analyses of 16S and COI concatenated sequences support Atelopus from the Manaus region as an evolutionary significant unit, sister of all species of a Guiana Shield clade. A previous study showed that subtle changes in stream characteristics influence the Manaus harlequin frog occurrence and density variation at local-scale in a reserve on the outskirts of Manaus. As deforestation is approaching areas where Manaus harlequin frog occurs, we asked how site and landscape heterogeneity influence the geographic boundaries, occurrence patterns and density variation of the Manaus harlequin frog. We searched for the frog in 80 plots that measured 250 m by 4-m on banks of first- to third-order streams during the rainy seasons in 2012-2013 and 2016-2019. The plot distribution covered all likely areas of occurrence of the Manaus harlequin frog and extended to the area where it is substituted by its geographically closest relative on the Guiana Shield. Ecological drivers related to climate, flooding events and forest structure apparently restrict the Manaus harlequin frog to a patchy distribution in a narrow portion of the interfluve between the Negro and Uatuma Rivers. Densities of individuals varied in response to subtle changes in floodplain and stream characteristics. The Manaus harlequin frog is associated with a very specific habitat that is directly affected by the growth of Manaus, the largest city in the Amazon. We conclude that it is endangered and urgent actions are required for its conservation.

Keywords

Central Amazon; environmental heterogeneity; extinction risk; habitat modification; Harlequin Frog.

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S26036
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref30646,
  	 author = {Rafael Filgueira Jorge and William Ernest Magnusson and Dayse Aparecida da  Silva and ?rico Macedo  Polo and Albertina Pimentel Lima},
  	 title = {Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents an evolutionarily significant unit within the genus Atelopus },
  	 year = {2020},
  	 keywords = {Central Amazon; environmental heterogeneity; extinction risk; habitat modification; Harlequin Frog.},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Journal of Zoological Systematics and Evolutionary Research},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {The Manaus harlequin frog is an evolutionarily significant clade within the Atelopus hoogmoedi species complex. Analyses of 16S and COI concatenated sequences support Atelopus from the Manaus region as an evolutionary significant unit, sister of all species of a Guiana Shield clade. A previous study showed that subtle changes in stream characteristics influence the Manaus harlequin frog occurrence and density variation at local-scale in a reserve on the outskirts of Manaus. As deforestation is approaching areas where Manaus harlequin frog occurs, we asked how site and landscape heterogeneity influence the geographic boundaries, occurrence patterns and density variation of the Manaus harlequin frog. We searched for the frog in 80 plots that measured 250 m by 4-m on banks of first- to third-order streams during the rainy seasons in 2012-2013 and 2016-2019. The plot distribution covered all likely areas of occurrence of the Manaus harlequin frog and extended to the area where it is substituted by its geographically closest relative on the Guiana Shield. Ecological drivers related to climate, flooding events and forest structure apparently restrict the Manaus harlequin frog to a patchy distribution in a narrow portion of the interfluve between the Negro and Uatuma Rivers. Densities of individuals varied in response to subtle changes in floodplain and stream characteristics. The Manaus harlequin frog is associated with a very specific habitat that is directly affected by the growth of Manaus, the largest city in the Amazon. We conclude that it is endangered and urgent actions are required for its conservation.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 30646
  AU  - Jorge,Rafael Filgueira
  AU  - Magnusson,William Ernest
  AU  -  Silva,Dayse Aparecida da
  AU  - Polo,?rico Macedo 
  AU  - Lima,Albertina Pimentel
  T1  - Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents an evolutionarily significant unit within the genus Atelopus 
  PY  - 2020
  KW  - Central Amazon; environmental heterogeneity; extinction risk; habitat modification; Harlequin Frog.
  UR  - http://dx.doi.org/
  N2  - The Manaus harlequin frog is an evolutionarily significant clade within the Atelopus hoogmoedi species complex. Analyses of 16S and COI concatenated sequences support Atelopus from the Manaus region as an evolutionary significant unit, sister of all species of a Guiana Shield clade. A previous study showed that subtle changes in stream characteristics influence the Manaus harlequin frog occurrence and density variation at local-scale in a reserve on the outskirts of Manaus. As deforestation is approaching areas where Manaus harlequin frog occurs, we asked how site and landscape heterogeneity influence the geographic boundaries, occurrence patterns and density variation of the Manaus harlequin frog. We searched for the frog in 80 plots that measured 250 m by 4-m on banks of first- to third-order streams during the rainy seasons in 2012-2013 and 2016-2019. The plot distribution covered all likely areas of occurrence of the Manaus harlequin frog and extended to the area where it is substituted by its geographically closest relative on the Guiana Shield. Ecological drivers related to climate, flooding events and forest structure apparently restrict the Manaus harlequin frog to a patchy distribution in a narrow portion of the interfluve between the Negro and Uatuma Rivers. Densities of individuals varied in response to subtle changes in floodplain and stream characteristics. The Manaus harlequin frog is associated with a very specific habitat that is directly affected by the growth of Manaus, the largest city in the Amazon. We conclude that it is endangered and urgent actions are required for its conservation.
  L3  - 
  JF  - Journal of Zoological Systematics and Evolutionary Research
  VL  - 
  IS  - 
  ER  -