5 thoughts on “Pectoral Sandpiper (Calidris melanotos)”
Nest density slightly increase in the Chaun delta, Chukotka, Russia, in 2011-2023; and it is positively correlated with spring weather conditions (increase in warm springs). So the expected trend is positive with climate change (D Solovyeva, unpublished data). Seems to increase elsewhere in the Russian Arctic with range expansion (need to check in the literature, i.e. Arctic Birds database http://www.arcticbirds.net/)
PRISM surveys in the Arctic National Wildlife Refuge between 2002/2004 and 2019/2022 showed a significant increase (2002/2004: 52,978, SE=9,176; 2019/2022: 96,217, SE = 14,573). A similar survey in the Teshekpuk Lake Special Area in north central Alaska showed a slight increase in number of individuals detected in 2007/2008 (42) to 2023 (265). We plan to do another year of surveys in this area before generating population estimates that can be used to evaluate population-level wide change in this location.
The trend information in Smith et al. (2023) may not be very meaningful as this species migrates primarily south through the Midcontinent (R. Lanctot, B. Kempenaers, unpubl. data) and the Smith survey analysis had coverage primarily in the Atlantic Flyway.
Habitat conversion of wetland regions on the migration and wintering range may reduce the amount of suitable habitat and also expose birds to contaminants.
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.
We thank all contributors for their helpful comments. While the Smith et al. (2023) dataset suggest rapid declines in this species over the past three generations along the Atlantic Flyway, it is acknowledged following the comment from R. Lanctot that this may not accurately reflect global trends given most of the species’ population migrates through the Midcontinent. Given the increase in the numbers observed in the PRISM surveys, it is now concluded that there is insufficient evidence to suspect a rapid decline in this species. Based on available information, our preliminary proposal for the 2024 Red List would be to list Pectoral Sandpiper as Least Concern.
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.
One of the most numerous species to winter in the Pantanal. Especially in wet meadow. In the Pantanal flooplain, wintering sites are under threat due to changes in the flood regime promoted by climate change, as well as the waterway project on the Paraguay River
Nest density slightly increase in the Chaun delta, Chukotka, Russia, in 2011-2023; and it is positively correlated with spring weather conditions (increase in warm springs). So the expected trend is positive with climate change (D Solovyeva, unpublished data). Seems to increase elsewhere in the Russian Arctic with range expansion (need to check in the literature, i.e. Arctic Birds database http://www.arcticbirds.net/)
PRISM surveys in the Arctic National Wildlife Refuge between 2002/2004 and 2019/2022 showed a significant increase (2002/2004: 52,978, SE=9,176; 2019/2022: 96,217, SE = 14,573). A similar survey in the Teshekpuk Lake Special Area in north central Alaska showed a slight increase in number of individuals detected in 2007/2008 (42) to 2023 (265). We plan to do another year of surveys in this area before generating population estimates that can be used to evaluate population-level wide change in this location.
The trend information in Smith et al. (2023) may not be very meaningful as this species migrates primarily south through the Midcontinent (R. Lanctot, B. Kempenaers, unpubl. data) and the Smith survey analysis had coverage primarily in the Atlantic Flyway.
Habitat conversion of wetland regions on the migration and wintering range may reduce the amount of suitable habitat and also expose birds to contaminants.
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
We thank all contributors for their helpful comments. While the Smith et al. (2023) dataset suggest rapid declines in this species over the past three generations along the Atlantic Flyway, it is acknowledged following the comment from R. Lanctot that this may not accurately reflect global trends given most of the species’ population migrates through the Midcontinent. Given the increase in the numbers observed in the PRISM surveys, it is now concluded that there is insufficient evidence to suspect a rapid decline in this species. Based on available information, our preliminary proposal for the 2024 Red List would be to list Pectoral Sandpiper as Least Concern.
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.
One of the most numerous species to winter in the Pantanal. Especially in wet meadow. In the Pantanal flooplain, wintering sites are under threat due to changes in the flood regime promoted by climate change, as well as the waterway project on the Paraguay River