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Densities and habitat preferences of Andean cloud-forest birds in pristine and degraded habitats in north-eastern Ecuador

Published online by Cambridge University Press:  11 May 2010

W. Cresswell ,
M. Hughes ,
R. Mellanby ,
S. Bright ,
P. Catry ,
J. Chaves ,
J. Freile ,
A. Gabela ,
H. Martineau  and
R. Macleod
...Show all authors
W. Cresswell
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
M. Hughes
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
R. Mellanby
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
S. Bright
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
P. Catry
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
J. Chaves
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
J. Freile
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
A. Gabela
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
H. Martineau
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
R. Macleod
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
F. Mcphie
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
N. Anderson
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
S. Holt
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
S. Barabas
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
C. Chapel
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
T. Sanchez
Affiliation:
Project Guandera, Glasgow University Expedition 1997, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
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The montane cloud-forests of the north-central Andes and the montane grassland and transitional elfin forest of the central Andean páramo contain a high diversity of bird species including several restricted range and uncommon species. Little is known of how densities of Andean cloud-forest species are affected by habitat degradation. Bird densities within pristine and degraded habitats at the Guandera Biological Reserve, Carchi province, Ecuador were recorded over a 10-week period. Densities were calculated for 48 species; where densities could be compared, 69% of species occurred at a higher density in pristine habitats. Pristine forest had the highest species richness with 72 species and páramo contained 44 species. In total, 26% of pristine forest species were only found in pristine forest, 39% of páramo species only in páramo, 13% of farmland species only in farmland and there were no exclusively secondary scrub species; 47% of species found in pristine forest, and 50% found in páramo were found in both secondary scrub and farmland. Restricted range species recorded at Guandera included the Carunculated Caracara Phalcobenus carunculatus, Black-thighed Puffleg Eriocnemis derbyi, Chestnut-bellied Cotinga Doliornis remseni, Crescent-faced Antpitta Grallaricula lineifrons, Masked Mountain-tanager Buthraupis wetmorei and Black-backed Bush-tanager Urothraupis stolzmanni. Three further species that occurred at Guandera of relatively local occurrence were the Grey-breasted Mountain Toucan Andigena hypoglauca, Golden-breasted Puffleg Eriocnemis mosquera and Mountain Avocetbill Opisthoprora euryptera. Of these nine species at least five used degraded habitats, while three occurred only in pristine treeline habitats.

Type
Research Article
Information
Bird Conservation International , Volume 9 , Issue 2 , June 1999 , pp. 129 - 145
Copyright
Copyright © Birdlife International 1999

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