The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia
Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most...
Published in: | Journal of Avian Biology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1111/jav.03056 https://doaj.org/article/e26ba29ab7f7496895b3e87edca015ea |
id |
ftdoajarticles:oai:doaj.org/article:e26ba29ab7f7496895b3e87edca015ea |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:e26ba29ab7f7496895b3e87edca015ea 2023-10-09T21:44:57+02:00 The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia Joseph E. Churchill Martje L. M. Birker Maaike Versteegh Tomás A. Altamirano Rodrigo A. Vásquez Jan Komdeur 2023-09-01T00:00:00Z https://doi.org/10.1111/jav.03056 https://doaj.org/article/e26ba29ab7f7496895b3e87edca015ea EN eng Wiley https://doi.org/10.1111/jav.03056 https://doaj.org/toc/0908-8857 https://doaj.org/toc/1600-048X 1600-048X 0908-8857 doi:10.1111/jav.03056 https://doaj.org/article/e26ba29ab7f7496895b3e87edca015ea Journal of Avian Biology, Vol 2023, Iss 9-10, Pp n/a-n/a (2023) climate breakdown environmental change haematocrit nestlings precipitation temperature Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.1111/jav.03056 2023-09-24T00:38:27Z Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most influential in determining pre‐fledgling haematocrit. This is important, because if we are able to identify what day(s) nestlings are physiologically most vulnerable to climatic conditions, this may inform future conservation management and help mitigate the effects. We investigated the effect of ambient temperature, precipitation, body size, brood size, age, food abundance and habitat on nestling haematocrit in Aphrastura spinicauda (thorn‐tailed rayaditos). We collected this data from two climatically different locations in Chile: northern Patagonia (Pucón) and Sub‐Antarctic Patagonia (Navarino Island), located ~ 1800 km further south. We aimed to identify the key drivers of nestling haematocrit and find when nestlings are physiologically most vulnerable to climatic conditions. We confirm that ambient temperature is the key driver of nestling haematocrit, with increasing ambient temperatures nestling haematocrit decreased. However, precipitation also affected haematocrit in the late incubation stage. At low and high precipitation, nestling haematocrit was low and is optimum in light rainfall. Our results show a delayed effect of ambient temperature and precipitation in late incubation and on the day of hatching which can determine pre‐fledgling haematocrit, which may cause lower post‐fledgling fitness. We found that climatic conditions on the day haematocrit was collected was not important in determining haematocrit. We found that haematocrit was higher in the sub‐Antarctic area and that higher temperatures and precipitation on the day of hatching will result in lower nestling haematocrit and poorer pre‐fledgling condition. As atmospheric temperatures rise, nestling fitness is at risk. This is a threat to many bird ... Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Lower Post ENVELOPE(-128.482,-128.482,59.925,59.925) Patagonia Journal of Avian Biology 2023 9-10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate breakdown environmental change haematocrit nestlings precipitation temperature Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
climate breakdown environmental change haematocrit nestlings precipitation temperature Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 Joseph E. Churchill Martje L. M. Birker Maaike Versteegh Tomás A. Altamirano Rodrigo A. Vásquez Jan Komdeur The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
topic_facet |
climate breakdown environmental change haematocrit nestlings precipitation temperature Biology (General) QH301-705.5 General. Including nature conservation geographical distribution QH1-199.5 |
description |
Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most influential in determining pre‐fledgling haematocrit. This is important, because if we are able to identify what day(s) nestlings are physiologically most vulnerable to climatic conditions, this may inform future conservation management and help mitigate the effects. We investigated the effect of ambient temperature, precipitation, body size, brood size, age, food abundance and habitat on nestling haematocrit in Aphrastura spinicauda (thorn‐tailed rayaditos). We collected this data from two climatically different locations in Chile: northern Patagonia (Pucón) and Sub‐Antarctic Patagonia (Navarino Island), located ~ 1800 km further south. We aimed to identify the key drivers of nestling haematocrit and find when nestlings are physiologically most vulnerable to climatic conditions. We confirm that ambient temperature is the key driver of nestling haematocrit, with increasing ambient temperatures nestling haematocrit decreased. However, precipitation also affected haematocrit in the late incubation stage. At low and high precipitation, nestling haematocrit was low and is optimum in light rainfall. Our results show a delayed effect of ambient temperature and precipitation in late incubation and on the day of hatching which can determine pre‐fledgling haematocrit, which may cause lower post‐fledgling fitness. We found that climatic conditions on the day haematocrit was collected was not important in determining haematocrit. We found that haematocrit was higher in the sub‐Antarctic area and that higher temperatures and precipitation on the day of hatching will result in lower nestling haematocrit and poorer pre‐fledgling condition. As atmospheric temperatures rise, nestling fitness is at risk. This is a threat to many bird ... |
format |
Article in Journal/Newspaper |
author |
Joseph E. Churchill Martje L. M. Birker Maaike Versteegh Tomás A. Altamirano Rodrigo A. Vásquez Jan Komdeur |
author_facet |
Joseph E. Churchill Martje L. M. Birker Maaike Versteegh Tomás A. Altamirano Rodrigo A. Vásquez Jan Komdeur |
author_sort |
Joseph E. Churchill |
title |
The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
title_short |
The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
title_full |
The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
title_fullStr |
The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
title_full_unstemmed |
The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia |
title_sort |
delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in patagonia |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1111/jav.03056 https://doaj.org/article/e26ba29ab7f7496895b3e87edca015ea |
long_lat |
ENVELOPE(-128.482,-128.482,59.925,59.925) |
geographic |
Antarctic Lower Post Patagonia |
geographic_facet |
Antarctic Lower Post Patagonia |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Journal of Avian Biology, Vol 2023, Iss 9-10, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1111/jav.03056 https://doaj.org/toc/0908-8857 https://doaj.org/toc/1600-048X 1600-048X 0908-8857 doi:10.1111/jav.03056 https://doaj.org/article/e26ba29ab7f7496895b3e87edca015ea |
op_doi |
https://doi.org/10.1111/jav.03056 |
container_title |
Journal of Avian Biology |
container_volume |
2023 |
container_issue |
9-10 |
_version_ |
1779314781914660864 |