Ecological drivers and consequences of torpor in Andean hummingbirds
Daily torpor allows endotherms to save energy during energetically stressful (e.g. cold) conditions. Although studies on avian torpor have mostly been conducted under laboratory conditions, information on the usage of torpor in the wild is limited to few, predominantly temperate-zone species. We studied torpor under seminatural conditions from 249 individuals from 29 hummingbird species across a 1920 m elevational gradient in the western Andes of Colombia using cloacal thermistors. Small birds were more likely to use torpor than large birds, but only at low ambient temperatures, where torpor was prolonged. We also found effects of proxy variables for body condition and energy expenditure on the use of torpor, its characteristics, and impacts. Our results suggest that context-dependency and phylogenetic variation in the probability of deploying torpor can help understand clade-wide patterns of elevational distribution in Andean hummingbirds.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:290 |
|---|---|
| Enthalten in: |
Proceedings. Biological sciences - 290(2023), 1995 vom: 29. März, Seite 20222099 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Revelo Hernández, Diana Carolina [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Altitudinal gradient |
|---|
| Anmerkungen: |
Date Completed 17.03.2023 Date Revised 30.03.2024 published: Print-Electronic figshare: 10.6084/m9.figshare.c.6451345 Citation Status MEDLINE |
|---|
| doi: |
10.1098/rspb.2022.2099 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM354249797 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM354249797 | ||
| 003 | DE-627 | ||
| 005 | 20240331000600.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1098/rspb.2022.2099 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1357.xml |
| 035 | |a (DE-627)NLM354249797 | ||
| 035 | |a (NLM)36919431 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Revelo Hernández, Diana Carolina |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Ecological drivers and consequences of torpor in Andean hummingbirds |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 17.03.2023 | ||
| 500 | |a Date Revised 30.03.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a figshare: 10.6084/m9.figshare.c.6451345 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Daily torpor allows endotherms to save energy during energetically stressful (e.g. cold) conditions. Although studies on avian torpor have mostly been conducted under laboratory conditions, information on the usage of torpor in the wild is limited to few, predominantly temperate-zone species. We studied torpor under seminatural conditions from 249 individuals from 29 hummingbird species across a 1920 m elevational gradient in the western Andes of Colombia using cloacal thermistors. Small birds were more likely to use torpor than large birds, but only at low ambient temperatures, where torpor was prolonged. We also found effects of proxy variables for body condition and energy expenditure on the use of torpor, its characteristics, and impacts. Our results suggest that context-dependency and phylogenetic variation in the probability of deploying torpor can help understand clade-wide patterns of elevational distribution in Andean hummingbirds | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Research Support, U.S. Gov't, Non-P.H.S. | |
| 650 | 4 | |a altitudinal gradient | |
| 650 | 4 | |a ambient temperature | |
| 650 | 4 | |a hummingbirds | |
| 650 | 4 | |a torpor | |
| 650 | 4 | |a trochilidae | |
| 700 | 1 | |a Baldwin, Justin W |e verfasserin |4 aut | |
| 700 | 1 | |a Londoño, Gustavo A |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Proceedings. Biological sciences |d 1990 |g 290(2023), 1995 vom: 29. März, Seite 20222099 |w (DE-627)NLM012597821 |x 1471-2954 |7 nnns |
| 773 | 1 | 8 | |g volume:290 |g year:2023 |g number:1995 |g day:29 |g month:03 |g pages:20222099 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1098/rspb.2022.2099 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 290 |j 2023 |e 1995 |b 29 |c 03 |h 20222099 | ||