5 thoughts on “Tooth-billed Wren (Odontorchilus cinereus): Revise global status?”
This assessment does surprise me as Odontorchilus is heavily-tied to tall and largely undisturbed terra firme forests and occurs at relatively low densities. Impacts from forest degradation arising from fire and selective logging extend over a vastly greater area than that affected by clear-cutting alone (Barlow et al. 2016 Nature, 535(7610), pp.144-147.) and the species is absent from secondary forests. Given that the distribution encompasses a very large chunk of both deforested and degraded Amazonian forests, losses might approach the VU threshold.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested by so many people in commenting. The window for consultation is now closed and we are unable to accept any more comments until 21 February 2022. We will now analyse and interpret the new information, and we will post a preliminary decision on this species’s Red List status on this page on 21 February 2022, when discussions will re-open.
Based on available information, it is recognised that due to high dependence of the species to undisturbed forests, population declines may well be occurring faster than the rate of tree cover loss alone. However, the available data continues to suggest that this rate of decline does not exceed 20% over ten years and therefore does not approach the thresholds for a threatened category (per IUCN Guidelines). As such, our preliminary proposal for the 2022.1 Red List would be to adopt the proposed classifications outlined in the initial forum discussion. We would however appreciate any information regarding any data aiming to quantify the fragmentation of the habitat in which the species occurs.
There is now a period for further comments until the final deadline on 27 February 2022, after which the recommended categorisations will be put forward to IUCN.
The final 2022.1 Red List categories will be published on the BirdLife and IUCN websites in July 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested by so many people in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will analyse and interpret the new information, and we will post a final decision on this species’ Red List status on this page on 7 March 2022.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed, but the account for this species has been updated to incorporate additional information from this discussion. Tooth-billed Wren is recommended to be listed as Least Concern.
Many thanks for everyone who contributed to the 2022.1 GTB Forum process. The final 2022.1 Red List categories will be published on the BirdLife and IUCN websites in July 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
This assessment does surprise me as Odontorchilus is heavily-tied to tall and largely undisturbed terra firme forests and occurs at relatively low densities. Impacts from forest degradation arising from fire and selective logging extend over a vastly greater area than that affected by clear-cutting alone (Barlow et al. 2016 Nature, 535(7610), pp.144-147.) and the species is absent from secondary forests. Given that the distribution encompasses a very large chunk of both deforested and degraded Amazonian forests, losses might approach the VU threshold.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested by so many people in commenting. The window for consultation is now closed and we are unable to accept any more comments until 21 February 2022. We will now analyse and interpret the new information, and we will post a preliminary decision on this species’s Red List status on this page on 21 February 2022, when discussions will re-open.
Preliminary proposal
Based on available information, it is recognised that due to high dependence of the species to undisturbed forests, population declines may well be occurring faster than the rate of tree cover loss alone. However, the available data continues to suggest that this rate of decline does not exceed 20% over ten years and therefore does not approach the thresholds for a threatened category (per IUCN Guidelines). As such, our preliminary proposal for the 2022.1 Red List would be to adopt the proposed classifications outlined in the initial forum discussion. We would however appreciate any information regarding any data aiming to quantify the fragmentation of the habitat in which the species occurs.
There is now a period for further comments until the final deadline on 27 February 2022, after which the recommended categorisations will be put forward to IUCN.
The final 2022.1 Red List categories will be published on the BirdLife and IUCN websites in July 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested by so many people in commenting. The window for consultation is now closed and we are unable to accept any more comments. We will analyse and interpret the new information, and we will post a final decision on this species’ Red List status on this page on 7 March 2022.
Recommended categorisation to be put forward to IUCN
The final categorisation for this species has not changed, but the account for this species has been updated to incorporate additional information from this discussion. Tooth-billed Wren is recommended to be listed as Least Concern.
Many thanks for everyone who contributed to the 2022.1 GTB Forum process. The final 2022.1 Red List categories will be published on the BirdLife and IUCN websites in July 2022, following further checking of information relevant to the assessments by both BirdLife and IUCN.