Asymmetric interspecific competition drives shifts in signalling traits in fan-throated lizards
Interspecific competition can occur when species are unable to distinguish between conspecific and heterospecific mates or competitors when they occur in sympatry. Selection in response to interspecific competition can lead to shifts in signalling traits-a process called agonistic character displacement. In two fan-throated lizard species-Sitana laticeps and Sarada darwini-females are morphologically indistinguishable and male agonistic signalling behaviour is similar. Consequently, in areas where these species overlap, males engage in interspecific aggressive interactions. To test whether interspecific male aggression between Si. laticeps and Sa. darwini results in agonistic character displacement, we quantified species recognition and signalling behaviour using staged encounter assays with both conspecifics and heterospecifics across sympatric and allopatric populations of both species. We found an asymmetric pattern, wherein males of Si. laticeps but not Sa. darwini showed differences in competitor recognition and agonistic signalling traits (morphology and behaviour) in sympatry compared with allopatry. This asymmetric shift in traits is probably due to differences in competitive abilities between species and can minimize competitive interactions in zones of sympatry. Overall, our results support agonistic character displacement, and highlight the role of asymmetric interspecific competition in driving shifts in social signals.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2020 |
|---|---|
| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:287 |
|---|---|
| Enthalten in: |
Proceedings. Biological sciences - 287(2020), 1940 vom: 09. Dez., Seite 20202141 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Zambre, Amod M [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Agonistic character displacement |
|---|
| Anmerkungen: |
Date Completed 13.01.2021 Date Revised 11.12.2021 published: Print-Electronic Dryad: 10.5061/dryad.t4b8gtj0p figshare: 10.6084/m9.figshare.c.5227858 Citation Status MEDLINE |
|---|
| doi: |
10.1098/rspb.2020.2141 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM318562871 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM318562871 | ||
| 003 | DE-627 | ||
| 005 | 20231225165617.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2020 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1098/rspb.2020.2141 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1061.xml |
| 035 | |a (DE-627)NLM318562871 | ||
| 035 | |a (NLM)33290678 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Zambre, Amod M |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Asymmetric interspecific competition drives shifts in signalling traits in fan-throated lizards |
| 264 | 1 | |c 2020 | |
| 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 13.01.2021 | ||
| 500 | |a Date Revised 11.12.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Dryad: 10.5061/dryad.t4b8gtj0p | ||
| 500 | |a figshare: 10.6084/m9.figshare.c.5227858 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Interspecific competition can occur when species are unable to distinguish between conspecific and heterospecific mates or competitors when they occur in sympatry. Selection in response to interspecific competition can lead to shifts in signalling traits-a process called agonistic character displacement. In two fan-throated lizard species-Sitana laticeps and Sarada darwini-females are morphologically indistinguishable and male agonistic signalling behaviour is similar. Consequently, in areas where these species overlap, males engage in interspecific aggressive interactions. To test whether interspecific male aggression between Si. laticeps and Sa. darwini results in agonistic character displacement, we quantified species recognition and signalling behaviour using staged encounter assays with both conspecifics and heterospecifics across sympatric and allopatric populations of both species. We found an asymmetric pattern, wherein males of Si. laticeps but not Sa. darwini showed differences in competitor recognition and agonistic signalling traits (morphology and behaviour) in sympatry compared with allopatry. This asymmetric shift in traits is probably due to differences in competitive abilities between species and can minimize competitive interactions in zones of sympatry. Overall, our results support agonistic character displacement, and highlight the role of asymmetric interspecific competition in driving shifts in social signals | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a agonistic character displacement | |
| 650 | 4 | |a competition | |
| 650 | 4 | |a courtship | |
| 650 | 4 | |a fan-throated lizards | |
| 650 | 4 | |a social signals | |
| 650 | 4 | |a sympatry | |
| 700 | 1 | |a Khandekar, Akshay |e verfasserin |4 aut | |
| 700 | 1 | |a Sanap, Rajesh |e verfasserin |4 aut | |
| 700 | 1 | |a O'Brien, Clairissa |e verfasserin |4 aut | |
| 700 | 1 | |a Snell-Rood, Emilie C |e verfasserin |4 aut | |
| 700 | 1 | |a Thaker, Maria |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Proceedings. Biological sciences |d 1990 |g 287(2020), 1940 vom: 09. Dez., Seite 20202141 |w (DE-627)NLM012597821 |x 1471-2954 |7 nnns |
| 773 | 1 | 8 | |g volume:287 |g year:2020 |g number:1940 |g day:09 |g month:12 |g pages:20202141 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1098/rspb.2020.2141 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 287 |j 2020 |e 1940 |b 09 |c 12 |h 20202141 | ||