4 thoughts on “Short-billed Dowitcher (Limnodromus griseus)”
We received the following contribution from Pete Davidson:
Short-billed Dowitcher looks solid – COSEWIC is in the middle of assessing this now, and whilst COSEWIC members are unfortunately not permitted to share specifics, the IUCN and COSEWIC processes look well aligned.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments until 3 May 2024. We will now analyse and interpret all information, and we will post a preliminary decision on this species’ Red List status on this page on 3 May 2024, when discussions will re-open.
Based on available information, our preliminary proposal for the 2024 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 13 May 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
I strongly agree with the proposal- my only comment is regarding the justification for the Population Trend section: when discussing Ziolkoski et al. dealing with CBC: short-stopping seems highly implausible for long-distance migrants that are well known for their site fidelity. There is virtually no evidence supporting that SBDO or any other similar species exhibit this compensatory strategy. Published evidence suggests that hendersonii and griseus exhibit minimal overlap in stationary non-breeding distribution (mainly in the Caribbean). The observed increases in the US could be due to increases in population size or redistribution within the “wintering” range for the medium-distance hendersonii, while long-distance griseus, that winters farther south in Northeastern South America and is perhaps, more exposed to stressors and threats is likely declining more rapidly. Of course, more studies are necessary to clarify this issue but this is the same pattern observed in other species (Calidris alba, Calidris canutus rufa) with disjunct wintering areas and strong non-breeding site fidelity.
We received the following contribution from Pete Davidson:
Short-billed Dowitcher looks solid – COSEWIC is in the middle of assessing this now, and whilst COSEWIC members are unfortunately not permitted to share specifics, the IUCN and COSEWIC processes look well aligned.
Many thanks to everyone who has contributed to this discussion. We greatly appreciate the time and effort invested in commenting. The window for consultation is now closed and we are unable to accept any more comments until 3 May 2024. We will now analyse and interpret all information, and we will post a preliminary decision on this species’ Red List status on this page on 3 May 2024, when discussions will re-open.
Preliminary proposal
Based on available information, our preliminary proposal for the 2024 Red List would be to adopt the proposed classifications outlined in the initial forum discussion.
There is now a period for further comments until the final deadline on 13 May 2024, after which the recommended categorisations will be put forward to IUCN.
The final 2024 Red List categories will be published on the BirdLife and IUCN websites in October 2024, following further checking of information relevant to the assessments by both BirdLife and IUCN.
I strongly agree with the proposal- my only comment is regarding the justification for the Population Trend section: when discussing Ziolkoski et al. dealing with CBC: short-stopping seems highly implausible for long-distance migrants that are well known for their site fidelity. There is virtually no evidence supporting that SBDO or any other similar species exhibit this compensatory strategy. Published evidence suggests that hendersonii and griseus exhibit minimal overlap in stationary non-breeding distribution (mainly in the Caribbean). The observed increases in the US could be due to increases in population size or redistribution within the “wintering” range for the medium-distance hendersonii, while long-distance griseus, that winters farther south in Northeastern South America and is perhaps, more exposed to stressors and threats is likely declining more rapidly. Of course, more studies are necessary to clarify this issue but this is the same pattern observed in other species (Calidris alba, Calidris canutus rufa) with disjunct wintering areas and strong non-breeding site fidelity.