Behavioral EcologyPub Date : 2024-10-26eCollection Date: 2024-11-01DOI: 10.1093/beheco/arae088
Judith A H Smit, Vera Thijssen, Andrew D Cronin, Jacintha Ellers, Wouter Halfwerk
{"title":"Urban sensory conditions alter rival interactions and mate choice in urban and forest túngara frogs.","authors":"Judith A H Smit, Vera Thijssen, Andrew D Cronin, Jacintha Ellers, Wouter Halfwerk","doi":"10.1093/beheco/arae088","DOIUrl":"10.1093/beheco/arae088","url":null,"abstract":"<p><p>Sexual communication often takes place in networks with multiple competing signalers being simultaneously assessed by mate choosers. Altered sensory conditions, such as noise and light pollution, can affect communication by altering signal production and perception. While evidence of sensory pollution affecting sexual signaling is widespread, few studies assess impacts on sexual signaling during rival interactions as well as mate choice, let alone whether urban and non-urban populations have diverged in their response. Here, we investigate the effects of urban sensory conditions on sexual communication in urban and forest túngara frogs (<i>Engystomops pustulosus</i>). We recorded dyadic vocal rival interactions and assessed mate choice with and without noise and light pollution in the lab. We show that urban sensory conditions can directly impact the intensity of rival interactions, differences between rivals, and mate choice, though changes were often in opposite directions for frogs of urban and forest origins. Moreover, we demonstrate that urban-induced changes in rival interactions can also indirectly affect how females choose between potential mates. Our study reveals origin-dependent direct and indirect effects of noise and light pollution and suggests local adaptation of sexual communication in urban populations.</p>","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"35 6","pages":"arae088"},"PeriodicalIF":2.5,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558454/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An immune challenge induces a decline in parental effort and compensation by the mate.","authors":"Alejandro Martínez-Flores, Bibiana Montoya, Roxana Torres","doi":"10.1093/beheco/arae086","DOIUrl":"10.1093/beheco/arae086","url":null,"abstract":"<p><p>Immune defense is fundamental to diminish the negative effects of the attack of infectious agents, yet the activation of the immune system entails costs and may compromise other life-history traits such as reproduction. In reproductive brown booby pairs (<i>Sula leucogaster</i>), we experimentally imposed an immune challenge during incubation, by intraperitoneally injecting <i>Escherichia coli</i> lipopolysaccharide (LPS), in either the male or the female. We aimed to test whether activation of the immune response results in (1) an increase in oxidative stress parameters, (2) a decline in post-hatching parental care in the treated individual, and (3) a compensation of the post-hatching parental effort by the nontreated mate. We found that activation of the immune response during incubation did not increase oxidative damage to lipids or total antioxidant capacity. However, mounting an immune response compromised parental effort during the chick-rearing period: compared to controls, LPS-treated parents showed roughly a 50% decline in the rate of preening and offspring feeding in response to begging. Interestingly, mates of LPS-treated parents increased their feeding rate suggesting parental care compensation. According to a scenario of full compensation, the decline in parental effort of LPS-treated parents did not result in poorer offspring growth or immune response, or increased levels of oxidative stress parameters. These findings suggest that in a long-lived species with long-lasting biparental care, an immune challenge compromises parental care, favoring parental compensation as a strategy to mitigate costs in terms of offspring success.</p>","PeriodicalId":8840,"journal":{"name":"Behavioral Ecology","volume":"35 6","pages":"arae086"},"PeriodicalIF":2.5,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558233/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142614079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}