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Pallarés S, Garoffolo D, Rodríguez B, Sánchez-Fernández D. Role of climatic variability in shaping intraspecific variation of thermal tolerance in Mediterranean water beetles. INSECT SCIENCE 2024; 31:285-298. [PMID: 37370260 DOI: 10.1111/1744-7917.13241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023]
Abstract
The climatic variability hypothesis (CVH) predicts that organisms in more thermally variable environments have wider thermal breadths and higher thermal plasticity than those from more stable environments. However, due to evolutionary trade-offs, taxa with greater absolute thermal limits may have little plasticity of such limits (trade-off hypothesis). The CVH assumes that climatic variability is the ultimate driver of thermal tolerance variation across latitudinal and altitudinal gradients, but average temperature also varies along such gradients. We explored intraspecific variation of thermal tolerance in three typical Mediterranean saline water beetles (families Hydrophilidae and Dytiscidae). For each species, we compared two populations where the species coexist, with similar annual mean temperature but contrasting thermal variability (continental vs. coastal population). We estimated thermal limits of adults from each population, previously acclimated at 17, 20, or 25 °C. We found species-specific patterns but overall, our results agree with the CVH regarding thermal ranges, which were wider in the continental (more variable) population. In the two hydrophilid species, this came at the cost of losing plasticity of the upper thermal limit in this population, supporting the trade-off hypothesis, but not in the dytiscid one. Our results support the role of local adaptation to thermal variability and trade-offs between basal tolerance and physiological plasticity in shaping thermal tolerance in aquatic ectotherms, but also suggest that intraspecific variation of thermal tolerance does not fit a general pattern among aquatic insects. Overlooking such intraspecific variation could lead to inaccurate predictions of the vulnerability of aquatic insects to global warming.
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Affiliation(s)
- Susana Pallarés
- Department of Zoology, University of Seville, Seville, Spain
| | - David Garoffolo
- Faculty of Biology, Department of Ecology and Hydrology, University of Murcia, Campus Espinardo, Murcia, Spain
| | - Belén Rodríguez
- Faculty of Biology, Department of Ecology and Hydrology, University of Murcia, Campus Espinardo, Murcia, Spain
| | - David Sánchez-Fernández
- Faculty of Biology, Department of Ecology and Hydrology, University of Murcia, Campus Espinardo, Murcia, Spain
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2
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Cuticle Hydrocarbons Show Plastic Variation under Desiccation in Saline Aquatic Beetles. INSECTS 2021; 12:insects12040285. [PMID: 33806018 PMCID: PMC8064485 DOI: 10.3390/insects12040285] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 12/27/2022]
Abstract
In the context of aridification in Mediterranean regions, desiccation resistance and physiological plasticity will be key traits for the persistence of aquatic insects exposed to increasing desiccation stress. Control of cuticular transpiration through changes in the quantity and composition of epicuticular hydrocarbons (CHCs) is one of the main mechanisms of desiccation resistance in insects, but it remains largely unexplored in aquatic ones. We studied acclimation responses to desiccation in adults of two endemic water beetles from distant lineages living in Mediterranean intermittent saline streams: Enochrus jesusarribasi (Hydrophilidae) and Nebrioporus baeticus (Dytiscidae). Cuticular water loss and CHC composition were measured in specimens exposed to a prior non-lethal desiccation stress, allowed to recover and exposed to a subsequent desiccation treatment. E. jesusarribasi showed a beneficial acclimation response to desiccation: pre-desiccated individuals reduced cuticular water loss rate in a subsequent exposure by increasing the relative abundance of cuticular methyl-branched compounds, longer chain alkanes and branched alkanes. In contrast, N. baeticus lacked acclimation capacity for controlling water loss and therefore may have a lower physiological capacity to cope with increasing aridity. These results are relevant to understanding biochemical adaptations to drought stress in inland waters in an evolutionary and ecological context.
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Rodriguez G, Fikáček M, Minoshima YN, Archangelsky M, Torres PLM. Going underwater: multiple origins and functional morphology of piercing-sucking feeding and tracheal system adaptations in water scavenger beetle larvae (Coleoptera: Hydrophiloidea). Zool J Linn Soc 2020. [DOI: 10.1093/zoolinnean/zlaa132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Larvae of water scavenger beetles (Coleoptera: Hydrophiloidea) are adapted to a wide variety of aquatic habitats, but little is known about functional and evolutionary aspects of these adaptations. We review the functional morphology and evolution of feeding strategies of larvae of the families Hydrophilidae and Epimetopidae based on a detailed scanning electron microscope (SEM) analysis, analysis of video records of feeding behaviour and observations of living larvae. There are two main types of feeding mechanisms: chewing and piercing-sucking. The character mapping using the latest phylogenetic hypothesis for Hydrophiloidea infers the chewing system as the ancestral condition. The piercing-sucking mechanism evolved at least four times independently: once in Epimetopidae (Epimetopus) and three times in Hydrophilidae (Berosini: Berosus + Hemiosus; Laccobiini: Laccobius group; Hydrobiusini: Hybogralius). The piercing-sucking apparatus allows underwater extra-oral digestion and decreases the dependence of larvae on an aerial environment. A detailed study of the tracheal morphology of the piercing-sucking lineages reveals four independent origins of the apneustic respiratory system, all of them nested within lineages with piercing-sucking mouthparts. We conclude that piercing-sucking mouthparts represent a key innovation, which allows for the subsequent adaptation of the tracheal system, influences the diversification dynamics of the lineages and allows the shift to new adaptive zones.
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Affiliation(s)
- Georgina Rodriguez
- Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Laboratorio de Entomología, CONICET, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina
| | - Martin Fikáček
- Department of Zoology, National Museum, Praha 9, Czech Republic and Department of Zoology, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Yȗsuke N Minoshima
- Natural History Division, Kitakyushu Museum of Natural History and Human History, 2-4-1 Higashida, Yahatahigashi-ku, Kitakyushu-shi, Fukuoka, 805-0071 Japan
| | - Miguel Archangelsky
- Laboratorio de Investigaciones en Ecología y Sistemática Animal (LIESA), Centro de Investigaciones Esquel de Montaña y Estepa Patagónica (CIEMEP) (CONICET e UNPSJB), Roca 780, 9200 Esquel, Chubut, Argentina
| | - Patricia L M Torres
- Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Laboratorio de Entomología, CONICET, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina
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Animal bioturbation preserved in Pleistocene magadiite at Lake Magadi, Kenya Rift Valley, and its implications for the depositional environment of bedded magadiite. Sci Rep 2020; 10:6794. [PMID: 32321943 PMCID: PMC7176717 DOI: 10.1038/s41598-020-63505-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/18/2020] [Indexed: 11/22/2022] Open
Abstract
Magadiite, a rare hydrous sodium-silicate mineral [NaSi7O13(OH)3·4(H2O)], was discovered about 50 years ago in sediments around Lake Magadi, a hypersaline alkaline lake fed by hot springs in the semi-arid southern Kenya Rift Valley. Today this harsh lacustrine environment excludes most organisms except microbial extremophiles, a few invertebrates (mostly insects), highly adapted fish (Alcolapia sp.), and birds including flamingos. Burrows discovered in outcrops of the High Magadi Beds (~25–9 ka) that predate the modern saline (trona) pan show that beetles and other invertebrates inhabit this extreme environment when conditions become more favourable. Burrows (cm-scale) preserved in magadiite in the High Magadi Beds are filled with mud, silt and sand from overlying sediments. Their stratigraphic context reveals upward-shallowing cycles from mud to interlaminated mud-magadiite to magadiite in dm-scale units. The burrows were formed when the lake floor became fresher and oxygenated, after a period when magadiite precipitated in shallow saline waters. The burrows, probably produced by beetles, show that trace fossils can provide evidence for short-term (possibly years to decades) changes in the contemporary environment that might not otherwise be recognised or preserved physically or chemically in the sediment record.
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Toussaint EF, Short AE. Transoceanic Stepping–stones between Cretaceous waterfalls? The enigmatic biogeography of pantropical Oocyclus cascade beetles. Mol Phylogenet Evol 2018; 127:416-428. [DOI: 10.1016/j.ympev.2018.04.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/07/2018] [Accepted: 04/15/2018] [Indexed: 10/17/2022]
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Pallarés S, Arribas P, Bilton DT, Millán A, Velasco J, Ribera I. The chicken or the egg? Adaptation to desiccation and salinity tolerance in a lineage of water beetles. Mol Ecol 2017; 26:5614-5628. [PMID: 28833872 DOI: 10.1111/mec.14334] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 07/31/2017] [Indexed: 12/24/2022]
Abstract
Transitions from fresh to saline habitats are restricted to a handful of insect lineages, as the colonization of saline waters requires specialized mechanisms to deal with osmotic stress. Previous studies have suggested that tolerance to salinity and desiccation could be mechanistically and evolutionarily linked, but the temporal sequence of these adaptations is not well established for individual lineages. We combined molecular, physiological and ecological data to explore the evolution of desiccation resistance, hyporegulation ability (i.e., the ability to osmoregulate in hyperosmotic media) and habitat transitions in the water beetle genus Enochrus subgenus Lumetus (Hydrophilidae). We tested whether enhanced desiccation resistance evolved before increases in hyporegulation ability or vice versa, or whether the two mechanisms evolved in parallel. The most recent ancestor of Lumetus was inferred to have high desiccation resistance and moderate hyporegulation ability. There were repeated shifts between habitats with differing levels of salinity in the radiation of the group, those to the most saline habitats generally occurring more rapidly than those to less saline ones. Significant and accelerated changes in hyporegulation ability evolved in parallel with smaller and more progressive increases in desiccation resistance across the phylogeny, associated with the colonization of meso- and hypersaline waters during global aridification events. All species with high hyporegulation ability were also desiccation-resistant, but not vice versa. Overall, results are consistent with the hypothesis that desiccation resistance mechanisms evolved first and provided the physiological basis for the development of hyporegulation ability, allowing these insects to colonize and diversify across meso- and hypersaline habitats.
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Affiliation(s)
- Susana Pallarés
- Department of Ecology and Hydrology, Facultad de Biología, University of Murcia, Murcia, Spain
| | - Paula Arribas
- Island Ecology and Evolution Research Group, IPNA-CSIC, Santa Cruz de Tenerife, Spain
| | - David T Bilton
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, Plymouth University, Plymouth, UK
| | - Andrés Millán
- Department of Ecology and Hydrology, Facultad de Biología, University of Murcia, Murcia, Spain
| | - Josefa Velasco
- Department of Ecology and Hydrology, Facultad de Biología, University of Murcia, Murcia, Spain
| | - Ignacio Ribera
- Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Barcelona, Spain
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7
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Mitterboeck TF, Fu J, Adamowicz SJ. Rates and patterns of molecular evolution in freshwater versus terrestrial insects. Genome 2016; 59:968-980. [PMID: 27767335 DOI: 10.1139/gen-2016-0030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Insect lineages have crossed between terrestrial and aquatic habitats many times, for both immature and adult life stages. We explore patterns in molecular evolutionary rates between 42 sister pairs of related terrestrial and freshwater insect clades using publicly available protein-coding DNA sequence data from the orders Coleoptera, Diptera, Lepidoptera, Hemiptera, Mecoptera, Trichoptera, and Neuroptera. We furthermore test for habitat-associated convergent molecular evolution in the cytochrome c oxidase subunit I (COI) gene in general and at a particular amino acid site previously reported to exhibit habitat-linked convergence within an aquatic beetle group. While ratios of nonsynonymous-to-synonymous substitutions across available loci were higher in terrestrial than freshwater-associated taxa in 26 of 42 lineage pairs, a stronger trend was observed (20 of 31, pbinomial = 0.15, pWilcoxon = 0.017) when examining only terrestrial-aquatic pairs including fully aquatic taxa. We did not observe any widespread changes at particular amino acid sites in COI associated with habitat shifts, although there may be general differences in selection regime linked to habitat.
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Affiliation(s)
- T Fatima Mitterboeck
- a Department of Integrative Biology, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada.,b Biodiversity Institute of Ontario, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada
| | - Jinzhong Fu
- a Department of Integrative Biology, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada
| | - Sarah J Adamowicz
- a Department of Integrative Biology, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada.,b Biodiversity Institute of Ontario, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada
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8
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Albertoni FF, Steiner J, Zillikens A. The associated beetle fauna ofHohenbergia augustaandVriesea friburgensis(Bromeliaceae) in southern Brazil. J NAT HIST 2016. [DOI: 10.1080/00222933.2016.1218079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Sontowski R, Bernhard D, Bleidorn C, Schlegel M, Gerth M. Wolbachia distribution in selected beetle taxa characterized by PCR screens and MLST data. Ecol Evol 2015; 5:4345-53. [PMID: 26664683 PMCID: PMC4667820 DOI: 10.1002/ece3.1641] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 07/03/2015] [Accepted: 07/08/2015] [Indexed: 11/17/2022] Open
Abstract
Wolbachia (Alphaproteobacteria) is an inherited endosymbiont of arthropods and filarial nematodes and was reported to be widespread across insect taxa. While Wolbachia's effects on host biology are not understood from most of these hosts, known Wolbachia‐induced phenotypes cover a spectrum from obligate beneficial mutualism to reproductive manipulations and pathogenicity. Interestingly, data on Wolbachia within the most species‐rich order of arthropods, the Coleoptera (beetles), are scarce. Therefore, we screened 128 species from seven beetle families (Buprestidae, Hydraenidae, Dytiscidae, Hydrophilidae, Gyrinidae, Haliplidae, and Noteridae) for the presence of Wolbachia. Our data show that, contrary to previous estimations, Wolbachia frequencies in beetles (31% overall) are comparable to the ones in other insects. In addition, we used Wolbachia MLST data and host phylogeny to explore the evolutionary history of Wolbachia strains from Hydraenidae, an aquatic lineage of beetles. Our data suggest that Wolbachia from Hydraenidae might be largely host genus specific and that Wolbachia strain phylogeny is not independent to that of its hosts. As this contrasts with most terrestrial Wolbachia–arthropod systems, one potential conclusion is that aquatic lifestyle of hosts may result in Wolbachia distribution patterns distinct from those of terrestrial hosts. Our data thus provide both insights into Wolbachia distribution among beetles in general and a first glimpse of Wolbachia distribution patterns among aquatic host lineages.
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Affiliation(s)
- Rebekka Sontowski
- Molecular Evolution and Systematics of Animals Institute for Biology University of Leipzig Talstrasse 33 D-04103 Leipzig Germany
| | - Detlef Bernhard
- Molecular Evolution and Systematics of Animals Institute for Biology University of Leipzig Talstrasse 33 D-04103 Leipzig Germany
| | - Christoph Bleidorn
- Molecular Evolution and Systematics of Animals Institute for Biology University of Leipzig Talstrasse 33 D-04103 Leipzig Germany ; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Deutscher Platz 5d 04103 Leipzig Germany
| | - Martin Schlegel
- Molecular Evolution and Systematics of Animals Institute for Biology University of Leipzig Talstrasse 33 D-04103 Leipzig Germany ; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Deutscher Platz 5d 04103 Leipzig Germany
| | - Michael Gerth
- Molecular Evolution and Systematics of Animals Institute for Biology University of Leipzig Talstrasse 33 D-04103 Leipzig Germany
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10
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Pallarés S, Arribas P, Bilton DT, Millán A, Velasco J. The comparative osmoregulatory ability of two water beetle genera whose species span the fresh-hypersaline gradient in inland waters (Coleoptera: Dytiscidae, Hydrophilidae). PLoS One 2015; 10:e0124299. [PMID: 25886355 PMCID: PMC4401727 DOI: 10.1371/journal.pone.0124299] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 03/11/2015] [Indexed: 11/18/2022] Open
Abstract
A better knowledge of the physiological basis of salinity tolerance is essential to understanding the ecology and evolutionary history of organisms that have colonized inland saline waters. Coleoptera are amongst the most diverse macroinvertebrates in inland waters, including saline habitats; however, the osmoregulatory strategies they employ to deal with osmotic stress remain unexplored. Survival and haemolymph osmotic concentration at different salinities were examined in adults of eight aquatic beetle species which inhabit different parts of the fresh-hypersaline gradient. Studied species belong to two unrelated genera which have invaded saline waters independently from freshwater ancestors; Nebrioporus (Dytiscidae) and Enochrus (Hydrophilidae). Their osmoregulatory strategy (osmoconformity or osmoregulation) was identified and osmotic capacity (the osmotic gradient between the animal's haemolymph and the external medium) was compared between species pairs co-habiting similar salinities in nature. We show that osmoregulatory capacity, rather than osmoconformity, has evolved independently in these different lineages. All species hyperegulated their haemolymph osmotic concentration in diluted waters; those living in fresh or low-salinity waters were unable to hyporegulate and survive in hyperosmotic media (> 340 mosmol kg(-1)). In contrast, the species which inhabit the hypo-hypersaline habitats were effective hyporegulators, maintaining their haemolymph osmolality within narrow limits (ca. 300 mosmol kg(-1)) across a wide range of external concentrations. The hypersaline species N. ceresyi and E. jesusarribasi tolerated conductivities up to 140 and 180 mS cm(-1), respectively, and maintained osmotic gradients over 3500 mosmol kg(-1), comparable to those of the most effective insect osmoregulators known to date. Syntopic species of both genera showed similar osmotic capacities and in general, osmotic responses correlated well with upper salinity levels occupied by individual species in nature. Therefore, osmoregulatory capacity may mediate habitat segregation amongst congeners across the salinity gradient.
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Affiliation(s)
- Susana Pallarés
- Department of Ecology and Hydrology, University of Murcia, Murcia, Spain
| | - Paula Arribas
- Department of Life Sciences, Natural History Museum London, London, United Kingdom
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - David T. Bilton
- Marine Biology and Ecology Research Centre, School of Marine Science and Engineering, Plymouth University, Plymouth, United Kingdom
| | - Andrés Millán
- Department of Ecology and Hydrology, University of Murcia, Murcia, Spain
| | - Josefa Velasco
- Department of Ecology and Hydrology, University of Murcia, Murcia, Spain
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11
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Bloom DD, Fikáček M, Short AEZ. Clade age and diversification rate variation explain disparity in species richness among water scavenger beetle (Hydrophilidae) lineages. PLoS One 2014; 9:e98430. [PMID: 24887453 PMCID: PMC4041770 DOI: 10.1371/journal.pone.0098430] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 04/28/2014] [Indexed: 01/19/2023] Open
Abstract
Explaining the disparity of species richness across the tree of life is one of the great challenges in evolutionary biology. Some lineages are exceptionally species rich, while others are relatively species poor. One explanation for heterogeneity among clade richness is that older clades are more species rich because they have had more time to accrue diversity than younger clades. Alternatively, disparity in species richness may be due to among-lineage diversification rate variation. Here we investigate diversification in water scavenger beetles (Hydrophilidae), which vary in species richness among major lineages by as much as 20 fold. Using a time-calibrated phylogeny and comparative methods, we test for a relationship between clade age and species richness and for shifts in diversification rate in hydrophilids. We detected a single diversification rate increase in Megasternini, a relatively young and species rich clade whose diversity might be explained by the stunning diversity of ecological niches occupied by this clade. We find that Amphiopini, an old clade, is significantly more species poor than expected, possibly due to its restricted geographic range. The remaining lineages show a correlation between species richness and clade age, suggesting that both clade age and variation in diversification rates explain the disparity in species richness in hydrophilids. We find little evidence that transitions between aquatic, semiaquatic, and terrestrial habitats are linked to shifts in diversification rates.
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Affiliation(s)
- Devin D. Bloom
- Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, Kansas, United States of America
- Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, Kansas, United States of America
| | - Martin Fikáček
- Department of Entomology, National Museum, Prague, Czech Republic
- Department of Zoology, Faculty of Sciences, Charles University, Prague, Czech Republic
| | - Andrew E. Z. Short
- Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, Kansas, United States of America
- Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, Kansas, United States of America
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12
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Fikáček M, Prokin A, Yan E, Yue Y, Wang B, Ren D, Beattie R. Modern hydrophilid clades present and widespread in the Late Jurassic and Early Cretaceous (Coleoptera: Hydrophiloidea: Hydrophilidae). Zool J Linn Soc 2014. [DOI: 10.1111/zoj.12114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Fikáček
- Department of Entomology; National Museum; Kunratice 1 CZ-14800 Praha 4-Kunratice Czech Republic
- Department of Zoology; Faculty of Science; Charles University in Prague; Viničná 7 CZ-12843 Praha 2 Czech Republic
| | - Alexander Prokin
- Papanin Institute for Biology of Inland Waters; Russian Academy of Sciences; Borok, Nekouzsky District 152742 Yaroslavl Oblast Russia
- Venevitinovo Research and Educational Centre; Voronezh State University; Universitetskaya pl. 1 394006 Voronezh Russia
| | - Evgeny Yan
- State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; 39 East Beijing Rd Nanjing 210008 China
- Paleontological Institute; Russian Academy of Sciences; 123 Profsoyuznaya Str. Moscow 117647 Russia
| | - Yanli Yue
- State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; 39 East Beijing Rd Nanjing 210008 China
- School of Life Science; Ningxia University; Ningxia China
| | - Bo Wang
- State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; 39 East Beijing Rd Nanjing 210008 China
- Steinmann Institute; University of Bonn; 53115 Bonn Germany
| | - Dong Ren
- College of Life Sciences; Capital Normal University; Beijing 100048 China
| | - Robert Beattie
- 119A Merrigang St. Bowral New South Wales 2576 Australia
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13
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Mađarić BB, Stanković VM, Čorak L, Ugarković Đ, Komarek A. Contributions to molecular systematics of water scavenger beetles (Hydrophilidae, Coleoptera). J ZOOL SYST EVOL RES 2013. [DOI: 10.1111/jzs.12013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Vlatka Mičetić Stanković
- Group for Systematic Zoology and Entomology; Department of Biology; Faculty of Science; University of Zagreb; Zagreb Croatia
| | - Luka Čorak
- Molecular Biology Department; Rudjer Bošković Institute; Zagreb Croatia
| | - Đurđica Ugarković
- Molecular Biology Department; Rudjer Bošković Institute; Zagreb Croatia
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14
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Gamboa M, Kimbirauskas RK, Merritt RW, Monaghan MT. A molecular approach to identifying the natural prey of the African creeping water bug Naucoris, a potential reservoir of Mycobacterium ulcerans. JOURNAL OF INSECT SCIENCE (ONLINE) 2012; 12:2. [PMID: 22934669 PMCID: PMC3465933 DOI: 10.1673/031.012.0201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 08/22/2011] [Indexed: 06/01/2023]
Abstract
The extra-oral digestion of creeping water bugs (Naucoridae: Hemiptera) hinders the study of their diet using the standard method of identifying prey body parts in the gut. Genetic methods are available, but rely on PCR tests or similar diagnostics to confirm suspected prey. Where the potential prey is unknown and a broad search for all possible prey is desirable, methods that can potentially capture any prey item are required. Naucoris sp. is known to harbor Mycobacterium ulcerans (Actinomycetales: Mycobacteriaceae), the causative bacterium of Buruli ulcer. Outbreaks of Buruli ulcer have been associated with disturbed freshwater habitats, but the mode of transmission to humans remains unclear. Here we examine the diet of Naucoris sp., a dominant aquatic predator in water bodies in Ghana where the prevalence of Buruli ulcer is high. We cloned and sequenced 576 PCR products (mtDNA rrnL, cox1) isolated from the gut of 60 Naucoris sp. individuals to determining diet composition as broadly as possible. Using phylogenetic analysis of newly sequenced clones and 6 potential prey taxa collected from the site, sequences isolated from Naucoris sp. guts matched locally collected Coleoptera (Hydrophilidae). Blastn queries to GenBank of other clone sequences produced matches to (Anura) (n = 1), Rotifera (n = 5), and fungi (n = 4) as additional components of the diet. Our results suggest that sp. in this Buruli ulcer-endemic area feeds on a wide range of prey and body sizes, and that the approach could be successfully applied to studies of aquatic food webs where morphological identification of prey is impossible and where little or no a priori knowledge is available.
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Affiliation(s)
- Maribet Gamboa
- Leibniz - Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, 12587, Berlin, Germany
| | - Ryan K. Kimbirauskas
- Department of Entomology, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Richard W. Merritt
- Department of Entomology, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Michael T. Monaghan
- Leibniz - Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, 12587, Berlin, Germany
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