File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/j.jtherbio.2019.02.014
- Scopus: eid_2-s2.0-85062491097
- WOS: WOS:000466820900020
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Native amphibian larvae exhibit higher upper thermal limits but lower performance than their introduced predator Gambusia affinis
Title | Native amphibian larvae exhibit higher upper thermal limits but lower performance than their introduced predator Gambusia affinis |
---|---|
Authors | |
Keywords | Amphibian Invasive species Optimal temperature Tadpole Thermal performance |
Issue Date | 2019 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/jtherbio |
Citation | Journal of Thermal Biology, 2019, v. 81, p. 154-161 How to Cite? |
Abstract | Information on the thermal limits and physiology of ectothermic amphibians is crucial to our understanding of their ecology in the natural environment, particularly with predicted global changes in climate. We documented the thermal limits of larvae of three amphibian species native to Hong Kong, and their introduced, invasive predator, the mosquitofish (Gambusia affinis). We then used larvae of the brown tree frog Polypedates megacephalus as a model amphibian to further investigate growth, oxygen consumption rate and heat shock protein expression with changes in thermal regime. We found that G. affinis was the most tolerant of low temperatures but also the least tolerant of high temperatures. Despite the higher thermal tolerance of the amphibian larvae, further investigation on P. megacephalus demonstrated that optimal temperatures for physiological performance fall within a range of 18.0–21.6 °C, which is far lower than its upper thermal limit, implying that thermal stress occurs during part of the larval stage under natural environmental conditions. This could mean a reduction in their capacity to deal with other stressors such as pollution and predators, and that G. affinis may have an advantage over native amphibians. © 2019 Elsevier Ltd |
Persistent Identifier | http://hdl.handle.net/10722/277396 |
ISSN | 2023 Impact Factor: 2.9 2023 SCImago Journal Rankings: 0.657 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lau, TCE | - |
dc.contributor.author | Leung, KMY | - |
dc.contributor.author | Karraker, NE | - |
dc.date.accessioned | 2019-09-20T08:50:17Z | - |
dc.date.available | 2019-09-20T08:50:17Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of Thermal Biology, 2019, v. 81, p. 154-161 | - |
dc.identifier.issn | 0306-4565 | - |
dc.identifier.uri | http://hdl.handle.net/10722/277396 | - |
dc.description.abstract | Information on the thermal limits and physiology of ectothermic amphibians is crucial to our understanding of their ecology in the natural environment, particularly with predicted global changes in climate. We documented the thermal limits of larvae of three amphibian species native to Hong Kong, and their introduced, invasive predator, the mosquitofish (Gambusia affinis). We then used larvae of the brown tree frog Polypedates megacephalus as a model amphibian to further investigate growth, oxygen consumption rate and heat shock protein expression with changes in thermal regime. We found that G. affinis was the most tolerant of low temperatures but also the least tolerant of high temperatures. Despite the higher thermal tolerance of the amphibian larvae, further investigation on P. megacephalus demonstrated that optimal temperatures for physiological performance fall within a range of 18.0–21.6 °C, which is far lower than its upper thermal limit, implying that thermal stress occurs during part of the larval stage under natural environmental conditions. This could mean a reduction in their capacity to deal with other stressors such as pollution and predators, and that G. affinis may have an advantage over native amphibians. © 2019 Elsevier Ltd | - |
dc.language | eng | - |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/jtherbio | - |
dc.relation.ispartof | Journal of Thermal Biology | - |
dc.subject | Amphibian | - |
dc.subject | Invasive species | - |
dc.subject | Optimal temperature | - |
dc.subject | Tadpole | - |
dc.subject | Thermal performance | - |
dc.title | Native amphibian larvae exhibit higher upper thermal limits but lower performance than their introduced predator Gambusia affinis | - |
dc.type | Article | - |
dc.identifier.email | Leung, KMY: kmyleung@hku.hk | - |
dc.identifier.authority | Leung, KMY=rp00733 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jtherbio.2019.02.014 | - |
dc.identifier.scopus | eid_2-s2.0-85062491097 | - |
dc.identifier.hkuros | 305558 | - |
dc.identifier.volume | 81 | - |
dc.identifier.spage | 154 | - |
dc.identifier.epage | 161 | - |
dc.identifier.isi | WOS:000466820900020 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 0306-4565 | - |