Juan D Vásquez-Restrepo, Marco A Ribeiro‑Júnior, Santiago J Sánchez-Pacheco
{"title":"Once upon a time: exploring the biogeographic history of the largest endemic lizard family in the Neotropics (Squamata: Gymnophthalmidae)","authors":"Juan D Vásquez-Restrepo, Marco A Ribeiro‑Júnior, Santiago J Sánchez-Pacheco","doi":"10.1093/biolinnean/blae080","DOIUrl":"https://doi.org/10.1093/biolinnean/blae080","url":null,"abstract":"Gymnophthalmids are a diverse lineage of Neotropical lizards that present challenges in the understanding of their phylogenetic relationships and biogeographic history. Using a densely sampled phylogeny and distribution data, we investigated their biogeography at the family level. Dividing South and Central America into 12 regions, we tested six biogeographic models considering dispersal-extinction, vicariance, and founder events. Our analysis revealed high taxonomic and phylogenetic endemism in the Andes, Amazon, and Guiana Shield. The best-fit model identified the Guiana Shield as the likely ancestral area of the family, with dispersal events dominating over vicariance. Key areas for species interchange were the Amazon, Northern Andes, and Guiana Shield. The core regions of diversification included the Andes, Amazon, and Guiana Shield, with elevated species richness and biotic interchange events during the Eocene and Oligocene. The Guiana Shield stood out as a stronghold of gymnophthalmid diversity, driven by dispersal rates and ancient lineages. Our findings challenge previous hypotheses about the diversification of these lizards, suggesting a colonization pattern from lowlands to high elevations rather than the South-to-North Speciation Hypothesis for Andean lineages.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"29 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259746","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}
Marco Madile Hjelt, Luis Moyano, María Eugenia Echave, Erika Kubisch, Laila Daniela Kazimierski, Nicolás Catalano, Guillermo Abramson, Karina Laneri
{"title":"Social networks of threatened Chaco tortoises (Chelonoidis chilensis) in the wild","authors":"Marco Madile Hjelt, Luis Moyano, María Eugenia Echave, Erika Kubisch, Laila Daniela Kazimierski, Nicolás Catalano, Guillermo Abramson, Karina Laneri","doi":"10.1093/biolinnean/blae073","DOIUrl":"https://doi.org/10.1093/biolinnean/blae073","url":null,"abstract":"We studied encounters between Chaco tortoises (Chelonoidis chilensis) that are in a threatened state of conservation in Patagonia, Argentina, which constitutes the southern limit of their geographical distribution. We monitored six individuals during different behavioural periods of the year (mating, nesting, and brumation), recording 24 344 encounters after tagging the animals with GPS tags. Constructing bipartite networks of burrows and tortoises, in addition to their projections, we discovered a spatial clustering of the burrows. Moreover, our research revealed that as tortoises approach the brumation period they use fewer unique burrows, engage in less burrow sharing, and increasingly favour spending time in their preferred burrow. During the mating and nesting periods some burrows are shared, whereas this was not the case during the brumation period. We studied the daily interactions through proximity-based networks, accounting for the daytime encounters during the different annual behavioural periods. We found the highest network density during the mating period, decreasing to zero, as expected, for the brumation period, when tortoises remain in their burrows during both night and day. Male–male interactions were more probable during the post-brumation and mating periods. Moreover, the number of daily encounters after sharing a burrow for a given night was found to be significant, which could be an indication of social behaviour and memory. Performing numerical simulations, we found that the proximity-based network densities were much higher than expected by chance, which could be attributable to individual selection of preferred sites or could be indicative of social behaviour among these threatened reptiles.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"70 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219585","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}
Megan L Vandenberg, Olivia H Hawkins, Eric Chier, Shirel R Kahane-Rapport, Adam P Summers, Cassandra M Donatelli
{"title":"How rugose can you go? Spiny Agonidae armour decreases boundary layer separation","authors":"Megan L Vandenberg, Olivia H Hawkins, Eric Chier, Shirel R Kahane-Rapport, Adam P Summers, Cassandra M Donatelli","doi":"10.1093/biolinnean/blae075","DOIUrl":"https://doi.org/10.1093/biolinnean/blae075","url":null,"abstract":"Armour has been present in vertebrates for millions of years and has evolved independently several times in the ray finned fishes. While armour is typically considered defensive, it is a multifunctional trait with many plausible alternative functions. We explore the hydrodynamic function of armour in nine species of poachers (Agonidae) by visualizing flow to assess drag reduction. We used microcomputed tomography scans to categorize armour morphology into morphotypes, and compared the rugosity (surface roughness) across these morphotypes. We then used digital particle image velocimetry to visualize boundary layer separation along 3D-printed whole-body models made using the scans. Poacher armour comprises eight rows that, some distance behind the second dorsal fin, merge into six. We found four morphotypes, with higher rugosity observed for the prominent spine morphotype and the lowest rugosity in the no-spine morphotype. Principal component analysis revealed that much of the variation in armour morphology is driven by plate shape, spine size, and protrusion. The boundary layer was retained longer in species with larger spines. Overall, the presence of a spine increased boundary layer retention, decreasing the drag, which is advantageous for these benthic fish.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"5 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219586","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}
Thomas J Firneno, Gabrielle T Welsh, Jennifer M Gumm, Erica L Larson, Robin M Tinghitella
{"title":"The evolution of sensory systems after signal change in threespine stickleback","authors":"Thomas J Firneno, Gabrielle T Welsh, Jennifer M Gumm, Erica L Larson, Robin M Tinghitella","doi":"10.1093/biolinnean/blae076","DOIUrl":"https://doi.org/10.1093/biolinnean/blae076","url":null,"abstract":"Sensory drive can lead to the evolution of signals that are optimized to the environment in which they are perceived. However, when environmental conditions change, the interactions between signal, environment, and receiver may also shift, leading to the evolution of a new signal optimum or more categorical shifts in sexual signals (gains or losses). We evaluated how visual systems have evolved following a change in environment and male signal, and whether visual system divergence contributes to reproductive isolation between ancestral and derived types in red and black morphs of Pacific Northwest freshwater threespine stickleback. We found that opsin sequence was tuned to enhance the perceived contrast of black fish on a red-shifted light background, whereas opsin expression was not. Further, we found no evidence for homotypic preferences or assortative mating between colour morphs; males of both morphs were equally successful in no-choice mating contexts, perhaps because black males are more vigorous courters. Together, our results suggest that habitat transitions in black stickleback have led to a shift in sensory-drive dynamics with some aspects of the visual system and behaviour evolving in response to other factors (foraging or predation) or lagging behind the evolution of opsin sequences in red-shifted environments.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"59 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219587","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}
André R de Souza, Vinicius M Lopez, Alexandre Somavilla, Fábio S Nascimento, Rhainer Guillermo Ferreira, Karla Yotoko
{"title":"Interspecific variation in paper wasp body size supports the converse Bergmann’s rule","authors":"André R de Souza, Vinicius M Lopez, Alexandre Somavilla, Fábio S Nascimento, Rhainer Guillermo Ferreira, Karla Yotoko","doi":"10.1093/biolinnean/blae074","DOIUrl":"https://doi.org/10.1093/biolinnean/blae074","url":null,"abstract":"Variation in body size is a conspicuous phenomenon and much scientific interest has been devoted to study the processes affecting this trait. Clines of body size across geographical areas have been detected, supporting ecogeographical rules that describe spatial patterns of phenotypic differences driven by environmental variation. In social insects, the causes of body size variation have been best studied at the within-species level, even though interspecific variation is far more striking. This is the case of Polistes paper wasps, a model genus for sociobiological and ecological studies. Here, we examined whether environmental variation predicts interspecific differences in the body size of New World Polistes, a monophyletic clade widespread through the Americas. Dried museum specimens comprising females from 37 species and males from 28 species were measured. In a phylogenetically controlled analysis, body size was associated with latitude, environmental temperature, and environmental seasonality. Larger species were more likely at low latitudes, in warmer climates, or in environments with mild seasonality. There was no evidence for a phylogenetic signal in body size. These findings support a pattern consistent with the converse Bergmann’s rule, thus suggesting that the limited time for foraging and growth in environments with strong seasonality (or higher latitudes) selects for faster development and maturation at smaller sizes. If so, the evolutionary lability of body size reported here might have contributed to the geographical spread and species diversification in this genus.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"5 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219588","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}
Mariana C Dessi, Lucas A Magri, Fernando F Franco, Marco Antonio Del Lama
{"title":"Genetic and morphometric variation in populations of Partamona cupira and Partamona mulata, stingless bees endemic to the Cerrado biome in Brazil","authors":"Mariana C Dessi, Lucas A Magri, Fernando F Franco, Marco Antonio Del Lama","doi":"10.1093/biolinnean/blae072","DOIUrl":"https://doi.org/10.1093/biolinnean/blae072","url":null,"abstract":"The Brazilian Cerrado biome stands out as a biodiversity hotspot, boasting a rich flora and endemic species. However, human activities have significantly altered nearly 80% of its area. Partamona cupira and Partamona mulata are stingless bees from the Cerrado that have received limited attention regarding their intraspecific variation. Our objective was to estimate the genetic and morphometric variation across the geographical distribution of these bees. We accomplished this by sequencing mitochondrial DNA (mtDNA) regions (COI and CytB genes) and obtaining phenotypic traits of wings using landmark-based approaches. Genetic analyses revealed a common pattern found in Partamona bees, characterized by high haplotype diversity, low nucleotide diversity, and the presence of exclusive low-frequency haplotypes. These characteristics support the hypothesis that stingless bees exhibit genetic structuring in their mtDNA due to their colony-dependent mode of reproduction. We observed an association between morphometric and geographical distances, suggesting that phenotypic gradients may be produced by environmental factors. The time to the most recent common ancestor for P. cupira and P. mulata was estimated at 147.8 and 284.0 kya, respectively. Demographic analyses suggested population equilibrium for both species, indicating that climatic fluctuations during the Pleistocene had no impact on the distributions of P. cupira and P. mulata.","PeriodicalId":55373,"journal":{"name":"Biological Journal of the Linnean Society","volume":"20 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219589","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}
Sandra Regina Lang, Taina Conrad, Sandra Steiger, Johannes Stökl
{"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":"22 1","pages":""},"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}
Alicia M Korpach, Evelien de Greef, Levi Newediuk, Chloé Schmidt, Colin J Garroway, Matt J Thorstensen
{"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":"73 1","pages":""},"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}
Maria Nava Martinez, Luis Amador, Daniele L F Wiley, Chris X McDaniels, Lisa N Barrow
{"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":"26 1","pages":""},"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}
Jorge Hernández-Lozano, Carlos A Garita-Alvarado, Roberto Munguía-Steyer, Marco A Garduño-Sánchez, Claudia Patricia Ornelas-García
{"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":"6 1","pages":""},"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}