Pub Date : 2024-08-08DOI: 10.1093/biolinnean/blae069
Sandra Regina Lang, Taina Conrad, Sandra Steiger, Johannes Stökl
Courtship displays are generally composed of multiple signal components that are transmitted and perceived through different sensory modalities. However, previous studies on multimodal courtship displays have focused mainly on individual signals, thus failing to provide a full explanation of why these displays evolved despite the added costs involved. Therefore, it is essential to identify the purpose of each display component and link them to prevailing hypotheses on multimodal display function. Here, we study the multimodal courtship display of males of the parasitoid wasp Leptopilina heterotoma, which consists of wing fanning and a putative antennal pheromone, by determining the information conveyed about male quality through these two modalities. We found that a high wing-fanning frequency and a large body size led to a higher mating success, whereas we found no correlation of the pheromone composition with mating success. We conclude that the wing-fanning component conveys mate-assessment information, whereas the chemical display component, found to be species specific in a previous study, functions as a species-recognition mechanism but does not reflect the quality of a male. Altogether, our study suggests that the multimodal courtship display of L. heterotoma fits the multiple message hypothesis and might thus be a useful model for further studies.
{"title":"Analysing the information content of the multimodal courtship display of a parasitoid wasp","authors":"Sandra Regina Lang, Taina Conrad, Sandra Steiger, Johannes Stökl","doi":"10.1093/biolinnean/blae069","DOIUrl":"https://doi.org/10.1093/biolinnean/blae069","url":null,"abstract":"Courtship displays are generally composed of multiple signal components that are transmitted and perceived through different sensory modalities. However, previous studies on multimodal courtship displays have focused mainly on individual signals, thus failing to provide a full explanation of why these displays evolved despite the added costs involved. Therefore, it is essential to identify the purpose of each display component and link them to prevailing hypotheses on multimodal display function. Here, we study the multimodal courtship display of males of the parasitoid wasp Leptopilina heterotoma, which consists of wing fanning and a putative antennal pheromone, by determining the information conveyed about male quality through these two modalities. We found that a high wing-fanning frequency and a large body size led to a higher mating success, whereas we found no correlation of the pheromone composition with mating success. We conclude that the wing-fanning component conveys mate-assessment information, whereas the chemical display component, found to be species specific in a previous study, functions as a species-recognition mechanism but does not reflect the quality of a male. Altogether, our study suggests that the multimodal courtship display of L. heterotoma fits the multiple message hypothesis and might thus be a useful model for further studies.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-22DOI: 10.1093/biolinnean/blae068
Alicia M Korpach, Evelien de Greef, Levi Newediuk, Chloé Schmidt, Colin J Garroway, Matt J Thorstensen
How, when, and where animals move during mating periods directs gene-flow patterns across landscapes. Traits associated with movement, such as movement ability and migratory behaviour, are sometimes correlated with population genetic structure, but this relationship depends on where and when mating occurs relative to annual movements. With their wide diversity in behaviours and life-history strategies, bats provide a testing ground for hypotheses about population structure related to migration and mating. We used a global sample of microsatellite data (N = 233 sampling locations from 17 bat species) associated with published studies to examine links between genetic variation and short-distance, long-distance, or non-migratory strategies that also relate to varied mating strategies. The genetic measures we tested were population-specific differentiation, gene diversity, and allelic richness. Using Bayesian models that accounted for phylogenetic distances among species and spatial autocorrelation, we identified no correlations between migration strategy and genetic variation. Our results suggest that hypotheses about genetic structure being mediated by migration might not hold, in general, for bat species. We discuss the need for continued research into the complex association of ecological, biogeographical, and behavioural factors that facilitate gene flow among populations, especially in species with diverse movement patterns.
{"title":"Moving to mate? Migration strategy does not predict genetic structure or diversity in bats (Chiroptera)","authors":"Alicia M Korpach, Evelien de Greef, Levi Newediuk, Chloé Schmidt, Colin J Garroway, Matt J Thorstensen","doi":"10.1093/biolinnean/blae068","DOIUrl":"https://doi.org/10.1093/biolinnean/blae068","url":null,"abstract":"How, when, and where animals move during mating periods directs gene-flow patterns across landscapes. Traits associated with movement, such as movement ability and migratory behaviour, are sometimes correlated with population genetic structure, but this relationship depends on where and when mating occurs relative to annual movements. With their wide diversity in behaviours and life-history strategies, bats provide a testing ground for hypotheses about population structure related to migration and mating. We used a global sample of microsatellite data (N = 233 sampling locations from 17 bat species) associated with published studies to examine links between genetic variation and short-distance, long-distance, or non-migratory strategies that also relate to varied mating strategies. The genetic measures we tested were population-specific differentiation, gene diversity, and allelic richness. Using Bayesian models that accounted for phylogenetic distances among species and spatial autocorrelation, we identified no correlations between migration strategy and genetic variation. Our results suggest that hypotheses about genetic structure being mediated by migration might not hold, in general, for bat species. We discuss the need for continued research into the complex association of ecological, biogeographical, and behavioural factors that facilitate gene flow among populations, especially in species with diverse movement patterns.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141786126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-20DOI: 10.1093/biolinnean/blae063
Maria Nava Martinez, Luis Amador, Daniele L F Wiley, Chris X McDaniels, Lisa N Barrow
In nature, small populations are often of concern because of limited genetic diversity, which underlies adaptive potential in the face of environmental change. Assessing patterns of genetic variation within co-distributed species sampled across varied landscapes can therefore illuminate their capacity to persist over time. We sequenced new genome-wide sequence data (double-digest restriction site-associated DNA sequencing) for four frog species (Anaxyrus terrestris, Hyla cinerea, Hyla squirella, and Rana sphenocephala) sampled from two barrier islands and the adjacent mainland of northern Florida. We calculated genomic diversity metrics and analysed spatial patterns of genomic variation for each species. We found higher genomic diversity within mainland individuals compared to island individuals for all species, suggesting a consistent effect of small island area on diversity across species. Three species (all but A. terrestris) showed significant signatures of isolation by distance, and some clustering analyses indicated separation of island and mainland individuals within species. We identified subtle differences in the strength of these patterns among species, with the strongest genetic differentiation observed in R. sphenocephala. Finally, we found evidence of recent migration between island and mainland populations for all species, which likely explains the limited genetic structure observed and contributes to the persistence of these small populations.
在自然界中，小种群往往因为遗传多样性有限而备受关注，而遗传多样性是面对环境变化的适应潜力的基础。因此，评估在不同地貌上取样的共同分布物种内部的遗传变异模式，可以揭示它们长期存在的能力。我们对取样于佛罗里达州北部两个屏障岛和邻近大陆的四个蛙类物种（Anaxyrus terrestris、Hyla cinerea、Hyla squirella 和 Rana sphenocephala）进行了新的全基因组序列数据测序（双位限制性位点相关 DNA 测序）。我们计算了每个物种的基因组多样性指标，并分析了基因组变异的空间模式。我们发现，在所有物种中，大陆个体的基因组多样性均高于岛屿个体，这表明小岛面积对不同物种多样性的影响是一致的。三个物种（除赤蛙外）显示出明显的距离隔离特征，一些聚类分析表明物种内部岛屿和大陆个体之间存在分离。我们发现这些模式的强度在不同物种之间存在细微差别，其中在 R. sphenocephala 中观察到的遗传分化最强。最后，我们发现所有物种的岛屿和大陆种群之间都有最近迁移的证据，这可能是所观察到的遗传结构有限的原因，也是这些小种群持续存在的原因。
{"title":"Population genomics of four co-distributed frog species in a barrier island system","authors":"Maria Nava Martinez, Luis Amador, Daniele L F Wiley, Chris X McDaniels, Lisa N Barrow","doi":"10.1093/biolinnean/blae063","DOIUrl":"https://doi.org/10.1093/biolinnean/blae063","url":null,"abstract":"In nature, small populations are often of concern because of limited genetic diversity, which underlies adaptive potential in the face of environmental change. Assessing patterns of genetic variation within co-distributed species sampled across varied landscapes can therefore illuminate their capacity to persist over time. We sequenced new genome-wide sequence data (double-digest restriction site-associated DNA sequencing) for four frog species (Anaxyrus terrestris, Hyla cinerea, Hyla squirella, and Rana sphenocephala) sampled from two barrier islands and the adjacent mainland of northern Florida. We calculated genomic diversity metrics and analysed spatial patterns of genomic variation for each species. We found higher genomic diversity within mainland individuals compared to island individuals for all species, suggesting a consistent effect of small island area on diversity across species. Three species (all but A. terrestris) showed significant signatures of isolation by distance, and some clustering analyses indicated separation of island and mainland individuals within species. We identified subtle differences in the strength of these patterns among species, with the strongest genetic differentiation observed in R. sphenocephala. Finally, we found evidence of recent migration between island and mainland populations for all species, which likely explains the limited genetic structure observed and contributes to the persistence of these small populations.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141745964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-16DOI: 10.1093/biolinnean/blae064
Maxime Boutin, L. Vilhelmsen
The Mutillidae (Hymenoptera: Aculeata) are a family of solitary ectoparasitoid wasps, famous for their sting and conspicuous coloration. The occurrence of Müllerian mimicry complexes has been demonstrated in both Africa and North America. Müllerian mimicry is the resemblance between several harmful species, advertising their defence to would-be predators by sharing a conspicuous colour pattern. Various colour patterns are known to occur in Oriental (Asian) velvet ants, but potential Müllerian mimicry complexes have not yet been inferred. We analysed the coloration of the females of 283 Oriental velvet ant species (52 genera), characterized by 12 phenotypic traits, and we identified shared colour patterns. Morphological differences between groups were tested using non-metric multidimensional scaling and permutational multivariate analysis of variance. We also inferred the geographical range of these colour patterns, and we investigated whether the shared patterns are the result of convergent evolution or common ancestry. We identified six distinct shared colour patterns, of which four can be associated with Müllerian mimicry. We also studied the position and shape of metasomal markings, and we found no association with mimicry rings. Our results improve the understanding of colour evolution in Oriental velvet ants and extend the previously described Müllerian mimicry complex to the south Asiatic landmass.
{"title":"Colour pattern diversity and evolution in Oriental velvet ants (Hymenoptera: Aculeata: Mutillidae)","authors":"Maxime Boutin, L. Vilhelmsen","doi":"10.1093/biolinnean/blae064","DOIUrl":"https://doi.org/10.1093/biolinnean/blae064","url":null,"abstract":"\u0000 The Mutillidae (Hymenoptera: Aculeata) are a family of solitary ectoparasitoid wasps, famous for their sting and conspicuous coloration. The occurrence of Müllerian mimicry complexes has been demonstrated in both Africa and North America. Müllerian mimicry is the resemblance between several harmful species, advertising their defence to would-be predators by sharing a conspicuous colour pattern. Various colour patterns are known to occur in Oriental (Asian) velvet ants, but potential Müllerian mimicry complexes have not yet been inferred. We analysed the coloration of the females of 283 Oriental velvet ant species (52 genera), characterized by 12 phenotypic traits, and we identified shared colour patterns. Morphological differences between groups were tested using non-metric multidimensional scaling and permutational multivariate analysis of variance. We also inferred the geographical range of these colour patterns, and we investigated whether the shared patterns are the result of convergent evolution or common ancestry. We identified six distinct shared colour patterns, of which four can be associated with Müllerian mimicry. We also studied the position and shape of metasomal markings, and we found no association with mimicry rings. Our results improve the understanding of colour evolution in Oriental velvet ants and extend the previously described Müllerian mimicry complex to the south Asiatic landmass.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141642493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-15DOI: 10.1093/biolinnean/blae067
Mariana Tolentino, A. P. Rampini, Filipe Aramuni, Thomas B Ryder, Marina Anciães
To understand male spatial aggregation in lek systems, questions have focused on whether males aggregate in areas with higher female abundance, around males that attract more females, or because of a female preference for certain male. For this, we investigated how social organization and male–male interactions are associated with female visitation in leks of the white-throated manakin (Corapipo gutturalis). Specifically, we evaluated whether females prefer higher-ranked males (based on the fidelity to court, display, and male age) and high-activity courts, as predicted by the hotshot hypothesis. In addition, but not mutually exclusive, we evaluated whether multi-male visitation at court and/or shorter spatial aggregation of courts attracted more females. We found that the highest-ranked males received significantly more female and male visits. However, the total activity at courts did not predict female visitation to males, but did predict male visitation to males. Furthermore, female visitation at courts was not predicted by the proportion of multi-male visitation at courts but by spatial aggregation of courts. These results suggest that the hotshot hypothesis illustrated by the male rank at court explains female visitation and male aggregation in leks of this species, generating a system in which males tend to compete for the highest rank in the court.
{"title":"Testing hypotheses for male aggregations in lek and the implications for sexual selection in the White-throated manakin, Corapipo gutturalis (Aves: Pipridae)","authors":"Mariana Tolentino, A. P. Rampini, Filipe Aramuni, Thomas B Ryder, Marina Anciães","doi":"10.1093/biolinnean/blae067","DOIUrl":"https://doi.org/10.1093/biolinnean/blae067","url":null,"abstract":"\u0000 To understand male spatial aggregation in lek systems, questions have focused on whether males aggregate in areas with higher female abundance, around males that attract more females, or because of a female preference for certain male. For this, we investigated how social organization and male–male interactions are associated with female visitation in leks of the white-throated manakin (Corapipo gutturalis). Specifically, we evaluated whether females prefer higher-ranked males (based on the fidelity to court, display, and male age) and high-activity courts, as predicted by the hotshot hypothesis. In addition, but not mutually exclusive, we evaluated whether multi-male visitation at court and/or shorter spatial aggregation of courts attracted more females. We found that the highest-ranked males received significantly more female and male visits. However, the total activity at courts did not predict female visitation to males, but did predict male visitation to males. Furthermore, female visitation at courts was not predicted by the proportion of multi-male visitation at courts but by spatial aggregation of courts. These results suggest that the hotshot hypothesis illustrated by the male rank at court explains female visitation and male aggregation in leks of this species, generating a system in which males tend to compete for the highest rank in the court.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-12DOI: 10.1093/biolinnean/blae059
Jorge Hernández-Lozano, Carlos A Garita-Alvarado, Roberto Munguía-Steyer, Marco A Garduño-Sánchez, Claudia Patricia Ornelas-García
Astyanax mexicanus offers a unique model for studying parallel evolution, with cave-dwelling forms arising from at least two distinct surface lineages. Here, we examined repeated evolution in the two cave-adapted lineages across four phenotypic datasets: (i) meristic data; (ii) ecomorphological data; and geometric morphometric data for (iii) head and (iv) premaxillary bone shape. Additionally, we assessed the association of these phenotypes with their phylogenetic history. Certain traits exhibited evidence of parallel evolution for the cave ecotype across lineages, such as increased maxillary tooth count, reduced lateral line scale count, and shorter ascending process of the premaxillary bone. Geometric morphometric data showed a phenotypic divergence gradient in head shape between cave and surface populations, with the strongest divergence between Sierra de El Abra and surface populations and with less differentiation between surface populations and caves from Sierra de Guatemala and Micos. Cave populations that hybridize with surface populations (e.g. Micos) displayed the greatest overlap with the surface ecotype. There was a similar divergence gradient for premaxillary bone shape, but with weaker differentiation between cave and surface ecotypes. This evidence of repeated evolution in several cave traits emphasizes the significance of selective pressures exerted by the environment on the evolution of cave ecotypes.
Astyanax mexicanus为研究平行进化提供了一个独特的模型，其穴居形式至少产生于两个不同的地表品系。在这里，我们通过四个表型数据集研究了这两个适应穴居的品系的重复进化：(i) 分体数据；(ii) 生态形态学数据；以及(iii) 头部和(iv) 前颌骨形状的几何形态计量数据。此外，我们还评估了这些表型与其系统发育历史的关联。洞穴生态型的某些性状显示了跨系平行进化的证据，如上颌牙齿数增加、侧线鳞片数减少、前颌骨上升过程变短等。几何形态计量数据显示，洞穴和地表种群的头型存在表型差异梯度，Sierra de El Abra和地表种群之间的差异最大，而地表种群和危地马拉山洞及米科斯山洞之间的差异较小。与地表种群杂交的洞穴种群（如米科斯）与地表生态型的重叠程度最大。前下颌骨的形状也有类似的分化梯度，但洞穴和地表生态型之间的分化较弱。这些洞穴特征重复演化的证据强调了环境对洞穴生态型演化的选择性压力的重要性。
{"title":"Parallel phenotypic evolution of two independent cavefish lineages of Astyanax mexicanus (De Filippi, 1854) (Characiformes: Characidae)","authors":"Jorge Hernández-Lozano, Carlos A Garita-Alvarado, Roberto Munguía-Steyer, Marco A Garduño-Sánchez, Claudia Patricia Ornelas-García","doi":"10.1093/biolinnean/blae059","DOIUrl":"https://doi.org/10.1093/biolinnean/blae059","url":null,"abstract":"Astyanax mexicanus offers a unique model for studying parallel evolution, with cave-dwelling forms arising from at least two distinct surface lineages. Here, we examined repeated evolution in the two cave-adapted lineages across four phenotypic datasets: (i) meristic data; (ii) ecomorphological data; and geometric morphometric data for (iii) head and (iv) premaxillary bone shape. Additionally, we assessed the association of these phenotypes with their phylogenetic history. Certain traits exhibited evidence of parallel evolution for the cave ecotype across lineages, such as increased maxillary tooth count, reduced lateral line scale count, and shorter ascending process of the premaxillary bone. Geometric morphometric data showed a phenotypic divergence gradient in head shape between cave and surface populations, with the strongest divergence between Sierra de El Abra and surface populations and with less differentiation between surface populations and caves from Sierra de Guatemala and Micos. Cave populations that hybridize with surface populations (e.g. Micos) displayed the greatest overlap with the surface ecotype. There was a similar divergence gradient for premaxillary bone shape, but with weaker differentiation between cave and surface ecotypes. This evidence of repeated evolution in several cave traits emphasizes the significance of selective pressures exerted by the environment on the evolution of cave ecotypes.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141608413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-09DOI: 10.1093/biolinnean/blae061
Jente Ottenburghs
Differences in behaviour can play an important role in the emergence of species and the maintenance of species boundaries. In birds, behavioural isolation mechanisms range from simple vocalizations to elaborate courtship displays. The breakdown of these isolation mechanisms could result in the production of viable hybrid offspring. In general, we might expect a negative relationship between the complexity of a behavioural isolation mechanism and the incidence of hybridization. I tested this prediction in manakins, a Neotropical bird family that shows a large variety of courtship displays. I compiled a database of reliable hybrid records and quantified the complexity of species-specific courtship displays. Binary logistic regressions indicated that courtship similarity was a better predictor of hybridization probability than courtship complexity. However, this pattern was strongly influenced by phylogenetic relatedness, in that closely related species exhibited similar courtship displays that were already being performed by their common ancestor. The main limitation of this study concerns the incomplete dataset. I could assess the courtship complexity for only 22 manakin species; consequently, not all hybrid combinations could be included in the analyses. Nonetheless, these findings provide important insights into the role of courtship displays in explaining patterns of hybridization.
{"title":"Courtship dance similarity, but not complexity, may explain patterns of hybridization in manakins (Aves: Pipridae)","authors":"Jente Ottenburghs","doi":"10.1093/biolinnean/blae061","DOIUrl":"https://doi.org/10.1093/biolinnean/blae061","url":null,"abstract":"Differences in behaviour can play an important role in the emergence of species and the maintenance of species boundaries. In birds, behavioural isolation mechanisms range from simple vocalizations to elaborate courtship displays. The breakdown of these isolation mechanisms could result in the production of viable hybrid offspring. In general, we might expect a negative relationship between the complexity of a behavioural isolation mechanism and the incidence of hybridization. I tested this prediction in manakins, a Neotropical bird family that shows a large variety of courtship displays. I compiled a database of reliable hybrid records and quantified the complexity of species-specific courtship displays. Binary logistic regressions indicated that courtship similarity was a better predictor of hybridization probability than courtship complexity. However, this pattern was strongly influenced by phylogenetic relatedness, in that closely related species exhibited similar courtship displays that were already being performed by their common ancestor. The main limitation of this study concerns the incomplete dataset. I could assess the courtship complexity for only 22 manakin species; consequently, not all hybrid combinations could be included in the analyses. Nonetheless, these findings provide important insights into the role of courtship displays in explaining patterns of hybridization.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141576866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-02DOI: 10.1093/biolinnean/blae065
Juan J Morrone, Erick A García-Trejo
The individual tracks of 47 bird species endemic to the Pacific Lowlands biogeographical province, which belongs to the Mesoamerican dominion of the Neotropical region, were used to revise its biogeographical regionalization. As a result, the six biogeographical districts previously recognized are classified in two subprovinces: the Coastal Lowlands of Nayarit-Sinaloa subprovince, stat. nov., which includes the Sinaloan, Tres Marías Islands, Revillagigedo Islands, and Guerreran districts; and the Coastal Lowlands of Southwestern Mexico subprovince, stat. nov., which includes the Tehuanan and Tapachultecan districts. Bird species supporting the biogeographical subprovinces and districts recognized are listed. The recognition of the subprovinces encompassing the districts represents an improvement of this biogeographical regionalization.
{"title":"Revisiting the biogeographical regionalization of the Pacific Lowlands biogeographical province using bird distributional data","authors":"Juan J Morrone, Erick A García-Trejo","doi":"10.1093/biolinnean/blae065","DOIUrl":"https://doi.org/10.1093/biolinnean/blae065","url":null,"abstract":"The individual tracks of 47 bird species endemic to the Pacific Lowlands biogeographical province, which belongs to the Mesoamerican dominion of the Neotropical region, were used to revise its biogeographical regionalization. As a result, the six biogeographical districts previously recognized are classified in two subprovinces: the Coastal Lowlands of Nayarit-Sinaloa subprovince, stat. nov., which includes the Sinaloan, Tres Marías Islands, Revillagigedo Islands, and Guerreran districts; and the Coastal Lowlands of Southwestern Mexico subprovince, stat. nov., which includes the Tehuanan and Tapachultecan districts. Bird species supporting the biogeographical subprovinces and districts recognized are listed. The recognition of the subprovinces encompassing the districts represents an improvement of this biogeographical regionalization.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141524676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-30DOI: 10.1093/biolinnean/blae060
Guilherme Augusto-Alves, Olivia S Feagles, Luís Felipe Toledo, Gerlinde Höbel
Anurans use different sensory modalities to communicate and interact socially, including acoustic, chemical, tactile, and visual signals. In a multimodal context, these sensory modes can transmit different information to the receiver or even reinforce the same message. In this study, we hypothesized that body colour traits and vocal sac movements of male eastern gray treefrogs [Dryophytes versicolor (= Hyla versicolor)] serve as secondary visual cues that increase their attractiveness while calling to attract mates. We tested this hypothesis using playback trials combining synthetic advertisement calls with a variety of visual cues, including differently coloured resin frog models, simulated vocal sacs, and live frogs. None of the visual stimuli tested impacted female choice, and there was no difference in response rate, response time, choice angle, or distance covered in the arena between multimodal and unimodal stimuli. However, females showed a strong preference for longer calls even if the less attractive calls were paired with a visual stimulus. The study provides comprehensive insights into the role of visual stimuli in the mate attraction of eastern gray treefrogs and suggests that call traits play a dominant role in the male-selection process of this species, contrary to what was observed for visual stimuli.
{"title":"Visual cues do not function in a multimodal signalling context for mate attraction in eastern gray treefrogs","authors":"Guilherme Augusto-Alves, Olivia S Feagles, Luís Felipe Toledo, Gerlinde Höbel","doi":"10.1093/biolinnean/blae060","DOIUrl":"https://doi.org/10.1093/biolinnean/blae060","url":null,"abstract":"Anurans use different sensory modalities to communicate and interact socially, including acoustic, chemical, tactile, and visual signals. In a multimodal context, these sensory modes can transmit different information to the receiver or even reinforce the same message. In this study, we hypothesized that body colour traits and vocal sac movements of male eastern gray treefrogs [Dryophytes versicolor (= Hyla versicolor)] serve as secondary visual cues that increase their attractiveness while calling to attract mates. We tested this hypothesis using playback trials combining synthetic advertisement calls with a variety of visual cues, including differently coloured resin frog models, simulated vocal sacs, and live frogs. None of the visual stimuli tested impacted female choice, and there was no difference in response rate, response time, choice angle, or distance covered in the arena between multimodal and unimodal stimuli. However, females showed a strong preference for longer calls even if the less attractive calls were paired with a visual stimulus. The study provides comprehensive insights into the role of visual stimuli in the mate attraction of eastern gray treefrogs and suggests that call traits play a dominant role in the male-selection process of this species, contrary to what was observed for visual stimuli.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-28DOI: 10.1093/biolinnean/blae058
Welton Dionisio-da-Silva, Katarina Luisa Araujo Rocha-da-Silva, Helena Maria Gonçalves Veloso, Marcio Bernardino DaSilva
Chemical perception is essential among arthropods for mate recognition, prey search, and predator avoidance, especially for solitary predators which are often aggressive. Such mechanisms may be intensified in environments like the Caatinga, a seasonally dry tropical forest in Brazil, characterized by low habitat complexity and high seasonal variation. Thus, we investigated chemical perception between two scorpion species from this environment, involved in intraguild competition. Experiments assessed their response to chemical cues from prey, predators, and potential mates. We use Y-mazes to test the time spent by the scorpions between Y-arms with or without a given substrate-borne chemical cue (site preference) and the number of active individuals during trials (presence of activity). Scorpions’ activity was not influenced by chemical stimuli, although they clearly exhibit site preferences. The smaller predators avoided sites with the larger species’ chemical cues, while the larger predators preferred sites with the smaller species’ cues. Additionally, both species trailed female chemical cues. These findings suggest a dual-oriented arms race where prey and predator modulate their behaviour to avoid and hunt heterospecifics, respectively. This study provides the first evidence of a scorpion using chemical cues to detect a heterospecific scorpion and highlights the importance of this trait in arachnids.
化学感知对于节肢动物识别配偶、寻找猎物和躲避捕食者至关重要，尤其是对于通常具有攻击性的独居捕食者而言。这种机制在巴西的卡廷加（Caatinga）等环境中可能会被强化，卡廷加是一种季节性干燥的热带森林，其特点是栖息地复杂性低、季节变化大。因此，我们研究了这一环境中两种参与体内竞争的蝎子对化学物质的感知。实验评估了它们对来自猎物、捕食者和潜在配偶的化学线索的反应。我们使用 Y 形臂来测试蝎子在有或没有特定基质传播的化学线索（地点偏好）的情况下在 Y 形臂之间花费的时间，以及试验期间活动个体的数量（活动的存在）。蝎子的活动不受化学刺激的影响，尽管它们明显表现出地点偏好。体型较小的捕食者会避开有较大物种化学线索的地点，而体型较大的捕食者则喜欢有较小物种化学线索的地点。此外，两种捕食者都尾随雌性化学线索。这些研究结果表明，猎物和捕食者在双向军备竞赛中分别调节自己的行为以避开和捕食异种。这项研究首次提供了蝎子利用化学线索探测异种蝎子的证据，并强调了这一特征在蛛形纲动物中的重要性。
{"title":"Hide and seek: chemical cues drive site preference among potential mates and intraguild competitors","authors":"Welton Dionisio-da-Silva, Katarina Luisa Araujo Rocha-da-Silva, Helena Maria Gonçalves Veloso, Marcio Bernardino DaSilva","doi":"10.1093/biolinnean/blae058","DOIUrl":"https://doi.org/10.1093/biolinnean/blae058","url":null,"abstract":"Chemical perception is essential among arthropods for mate recognition, prey search, and predator avoidance, especially for solitary predators which are often aggressive. Such mechanisms may be intensified in environments like the Caatinga, a seasonally dry tropical forest in Brazil, characterized by low habitat complexity and high seasonal variation. Thus, we investigated chemical perception between two scorpion species from this environment, involved in intraguild competition. Experiments assessed their response to chemical cues from prey, predators, and potential mates. We use Y-mazes to test the time spent by the scorpions between Y-arms with or without a given substrate-borne chemical cue (site preference) and the number of active individuals during trials (presence of activity). Scorpions’ activity was not influenced by chemical stimuli, although they clearly exhibit site preferences. The smaller predators avoided sites with the larger species’ chemical cues, while the larger predators preferred sites with the smaller species’ cues. Additionally, both species trailed female chemical cues. These findings suggest a dual-oriented arms race where prey and predator modulate their behaviour to avoid and hunt heterospecifics, respectively. This study provides the first evidence of a scorpion using chemical cues to detect a heterospecific scorpion and highlights the importance of this trait in arachnids.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141551126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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