Biogeography of Greater Antillean freshwater fishes, with a review of competing hypotheses

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: 99(3), P. 901 - 927

Published: Jan. 11, 2024

ABSTRACT In biogeography, vicariance and long‐distance dispersal are often characterised as competing scenarios. However, they related concepts, both relying on collective geological, ecological, phylogenetic evidence. This is illustrated by freshwater fishes, which may immigrate to islands either when connections temporarily present later severed (vicariance), or unusual means ocean gaps crossed (long‐distance dispersal). Marine barriers have a strong filtering effect limiting immigrants those most capable of oceanic dispersal. The roles debated for fishes the Greater Antilles. We review three active hypotheses [Cretaceous vicariance, Antilles–Aves Ridge (GAARlandia), dispersal] propose be an appropriate model due limited support fish use landspans. Antillean six potential source bioregions (defined from faunal similarity): Northern Gulf México, Western Maya Terrane, Chortís Block, Eastern Panamá, South America. Faunas Antilles composed taxa immigrating many these bioregions, but there compositional disharmony between island mainland faunas (>90% species cyprinodontiforms, compared <10% in México America, ≤50% elsewhere), consistent with hypothesis Ancestral‐area reconstruction analysis indicates were 16 17 immigration events over last 51 million years, 14 15 cyprinodontiforms. Published divergence estimates evidence available each event suggests occurred at different times pathways, possibly rafts vegetation discharged rivers washed sea during storms. If so, currents likely provide critical pathways flowing one landmass another. On other hand, create perpendicularly landmasses. addition high salinity tolerance, cyprinodontiforms collectively display variety adaptations that could enhance their ability live (small body size, viviparity, low metabolism, amphibiousness, diapause, self‐fertilisation). These also helped establish populations after arrival persist long term thereafter. Cichlids used pseudo bridge (Nicaragua Rise) reach Gars (Lepisosteidae) Straits Florida Cuba, relatively short crossing not barrier gene flow several cyprinodontiform immigrants. Indeed, widespread distributions Quaternary migrants ( Cyprinodon , Gambusia Kryptolebias ), within among neighbouring imply necessarily inhibitory well‐adapted species, even though it appears virtually impossible all fishes.

Language: Английский

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Untangling the complex interactions between turtle ants and their microbial partners

Animal Microbiome, Journal Year: 2023, Volume and Issue: 5(1)

Published: Jan. 3, 2023

To understand the patterns of biodiversity it is important to consider symbiotic interactions as they can shape animal evolution. In several ant genera with microbial communities have been shown profound impacts for host. For example, we know that Camponotini gut community upgrade host's diet and shaped by development colony interactions. However, what true one group may not be another. examined across ants see variation in diversity, host factors structure these communities, function microbes provide herbivorous turtle (Cephalotes) their stable bacteria persisted 50 million years synthesizing essential amino acids are used Although some ant-associated there still many open questions.In present study diversity (16S rRNA 18S amplicons) more than 75 species different geographic locations context phylogenetic history. Our results show (1) belonging a certain biogeographic regions relevant structuring ants; (2) both bacterial eukaryotic demonstrated correlations cooccurrence within host; (3) core community, Burkholderiaceae lineage were only showed strong codiversification host, which remarkable since persistent.We concluded diverse evolutionarily leads interesting questions about or influence when partner histories become intertwined.

Language: Английский

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Turtle Ant Resemblance in a New World Stink Bug, Preliminary Evidence for Mimicry

Biotropica, Journal Year: 2025, Volume and Issue: 57(2)

Published: Feb. 24, 2025

ABSTRACT In mimicry, a species signals fitness cost or benefit to receiver by resemblance another model species. While ants are among the most frequent models, few cases of ant mimicry known in stink bugs (Pentatomidae). Here, using geometric morphometric analysis, we propose that Rio nymphs might mimic Cephalotes ants.

Language: Английский

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Partner fidelity and environmental filtering preserve stage‐specific turtle ant gut symbioses for over 40 million years

Ecological Monographs, Journal Year: 2022, Volume and Issue: 93(1)

Published: Dec. 7, 2022

Abstract Sustaining beneficial gut symbioses presents a major challenge for animals, including holometabolous insects. Social insects may meet such challenges through partner fidelity, aided by behavioral symbiont transfer and transgenerational inheritance colony founders. We address potential colony‐wide explorations across 13 eusocial, insect species in the ant genus Cephalotes . Through amplicon sequencing, we show that previously characterized worker microbiomes are conserved soldier castes, adult exhibit trends of phylosymbiosis, cospeciate with their most abundant adult‐enriched symbiont. find, also, winged queens harbor worker‐like prior to founding, suggesting vertical as means fidelity. Whereas some adult‐abundant symbionts colonize larvae, larval uniquely environmental bacteria from Enterobacteriales, Lactobacillales, Actinobacteria. Distributions larvae suggest more than 40 million years filtering and, thus, second sustaining mechanism behind an ancient, developmentally partitioned symbiosis.

Language: Английский

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Physiological and evolutionary contexts of a new symbiotic species from the nitrogen-recycling gut community of turtle ants

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(10), P. 1751 - 1764

Published: Aug. 9, 2023

Language: Английский

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Physical chromosomal mapping of major ribosomal genes in 15 ant species with a review of hypotheses regarding evolution of the number and position of NORs in ants

Comparative Cytogenetics, Journal Year: 2024, Volume and Issue: 18, P. 105 - 122

Published: June 26, 2024

Recently, hypotheses regarding the evolutionary patterns of ribosomal genes in ant chromosomes have been under discussion. One these proposes a relationship between chromosomal location and number rDNA sites, suggesting that terminal locations facilitate dispersion clusters through ectopic recombination during meiosis, while intrachromosomal restrict them to single chromosome pair. Another hypothesis suggests multiplication sites could be associated with an increase Hymenoptera due fissions. In this study, we physically mapped 15 new species also reviewed data on available since revision by Teixeira et al. (2021a). Our objectives were investigate whether confirm is significant karyotypes. Combining our all information cytogenetics published after 2021, 40 nine genera assembled. Most exhibited pair, three showed regions multiple pairs. On one hand, may genome, as previously discussed, was strengthened, but, other fission main mechanism for ants likely refuted. Furthermore, certain genera, remained similar among studied, whereas others, distribution variation species, more dynamic evolution.

Language: Английский

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Phylogenomics resolve the systematics and biogeography of the ant tribe Myrmicini and tribal relationships within the hyperdiverse ant subfamily Myrmicinae

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 5, 2024

ABSTRACT Ants are a globally distributed and highly diverse group of eusocial animals, playing key ecological roles in most the world’s terrestrial ecosystems. Our understanding processes involved evolution this family is contingent upon our knowledge phylogeny ants. While relationships among subfamilies have come into resolution recently, several tribal within hyperdiverse subfamily Myrmicinae persistently conflict between or studies, mirroring controversial Leptanillinae Martialinae to remaining ant subfamilies. Another persistent issue debate phylogenetics timing major evolutionary events as inferred via divergence dating. Here, we test topology myrmicine tribes using genome scale data, inspect gene tree-species tree concordance, use posterior predictive checks tests compositional heterogeneity infer sequence characteristics which potentially introduce systematic bias topology. Furthermore, placement fossil † Manica andrannae by integrating phylogenomic morphological data from nearly all species genus Manica, broad sampling its sister Myrmica. Subsequently, demonstrate effect on overall times Myrmicinae. We then re-evaluate historical biogeography Myrmicini Pogonomyrmecini considering newly generated genetic insights results. find that current strongly supported, but sensitive gene-tree species-tree conflict. analyses suggest stem species, crown affects not only dates tribe Myrmicini, also has implications for throughout formicoid clade. The results biogeographic reconstructions indicate South American origin + with MRCA Myrmica inhabiting western Nearctic early Miocene prior repeated dispersal across Beringia Pliocene. , other hand, was Holarctic range vicariance during Unexpectedly, found strong support three coordinated Central America Miocene, been previously proposed an biotic interchange event more commonly accepted 3.5 Ma closure Isthmus Panama.

Language: Английский

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Complete phylogeny of Micrathena spiders suggests multiple dispersal events among Neotropical rainforests, islands and landmasses, and indicates that Andean orogeny promotes speciation

Cladistics, Journal Year: 2024, Volume and Issue: unknown

Published: June 11, 2024

Abstract The Neotropical region is the most diverse on planet, largely owing to its mosaic of tropical rainforests. Multiple tectonic and climatic processes have been hypothesized contribute generating this diversity, including Andean orogeny, closure Isthmus Panama, GAARlandia land bridge historical connections among currently isolated forests. Micrathena spiders are widespread in region, thus a complete phylogeny genus allows testing hypotheses at multiple scales. We estimated complete, dated using morphological data for 117 species molecular up five genes subset 79 species. Employing eventc‐based approaches biogeographic stochastic mapping while considering phylogenetic uncertainty, we ancestral distributions, timing direction dispersal events diversification rates areas. generally robust, with uncertainty position some lacking sequences. started diversifying around 25 Ma. cloud forests show highest in‐situ speciation, Amazon major source adjacent Dry Diagonal generated few sink diversity. Species exchange between Central South America involved approximately 23 ~20 Ma, which consistent Miocene age Panama closure. inferred four from Antilles last 20 Myr, indicating did not reach islands through bridge. identified important routes Amazon, Atlantic during Plio‐Pleistocene. Sampling all was fundamental conclusions above, especially identifying as area that majority This highlights importance taxonomic sampling studies.

Language: Английский

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Identifying the Role of Elevation, Geography, and Species Identity in Structuring Turtle Ant (Cephalotes Latreille, 1802) Bacterial Communities

Microbial Ecology, Journal Year: 2022, Volume and Issue: 86(2), P. 1240 - 1253

Published: Nov. 10, 2022

Language: Английский

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Complete phylogeny ofMicrathenaspiders suggests multiple dispersal events among Neotropical rainforests, islands, and landmasses, and indicates Andean orogeny promotes speciation

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 3, 2023

Abstract The Neotropical region is the most diverse on planet, largely due to its mosaic of tropical rainforests. Multiple tectonic and climatic processes have been hypothesized play a role in generating this diversity; these include Andean orogeny, closure Panama Isthmus, GAARlandia land bridge, putative historical connections among currently isolated forests. Micrathena spiny spiders (Araneidae) ∼120 species distributed mostly forests from Mexico Argentina, including Antilles. Here, we use it as model study biogeographic history rainforests by estimating complete, dated phylogeny using morphological data for all molecular subsample 79 species. This resulted that robust supports previously recognized groups, although with uncertainty phylogenetic position some species, especially those lacking sequences. genus began diversifying about 25 million years ago. We an event-based approach stochastic mapping estimate ancestral distributions timing direction dispersal events, identify areas where diversity was generated, while accounting uncertainty. cloud generated majority through in-situ speciation, but Amazon major source adjacent dispersal; other extreme, Dry Diagonal received very little diversity. Species exchange between Central South America intense, ∼23 events beginning at least 20 ago, indicating dispersed continents before Isthmus Panama. also inferred ∼4 over-water North Antilles, which happened last years, thus much after proposed age bridge. identified important route Atlantic Sampling fundamental conclusions above, identifying Andes area highlights importance solid complete taxonomic sampling studies.

Language: Английский

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