1
|
Fostowicz-Frelik Ł, Cox PG, Li Q. Mandibular characteristics of early Glires (Mammalia) reveal mixed rodent and lagomorph morphotypes. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220087. [PMID: 37183896 PMCID: PMC10184241 DOI: 10.1098/rstb.2022.0087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
Glires (rodents, lagomorphs and their fossil kin) is the most speciose and arguably most diversified clade of living placentals. Different lineages within the Glires evolved basically opposite chewing movements: a mostly transversal power stroke in lagomorphs, and a mostly proal power stroke in rodents, but the ancestral condition for Glires is still unclear. To address this knowledge gap, we studied the mandibles of Chinese Palaeocene Glires representing the duplicidentate (lagomorph-like; Mimotona) and simplicidentate (rodent-like; Eomylus and Heomys) lineages. To assess the mechanical resistance of mandibles to bending and torsion, we calculated the section modulus. The dentaries differ greatly in morphology and the region where the maximum grinding force was likely applied. The early Palaeocene Mimotona lii and the middle Palaeocene Mimotona robusta and Heomys orientalis all show a pattern of increasing strength moving posteriorly along the mandible, similar to sciurids and the mountain beaver. By contrast, the late Palaeocene Eomylus sp. mandible was strongest in the m1 region, a pattern seen in lagomorphs and the stem placental Zofialestes. Our results indicate the early diversification of mandible structure of Glires, demonstrate a mixture of duplicidentate and simplicidentate characters among the basal Glires and suggest an early occurrence of a lagomorph-like morphotype. This article is part of the theme issue 'The mammalian skull: development, structure and function'.
Collapse
Affiliation(s)
- Łucja Fostowicz-Frelik
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA
- Institute of Paleobiology, Polish Academy of Sciences, 00-818 Warsaw, Poland
| | - Philip G Cox
- Centre for Integrative Anatomy, Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK
| | - Qian Li
- Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, People's Republic of China
- Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Beijing 100044, People's Republic of China
| |
Collapse
|
2
|
Barbero S, Teta P, Cassini GH. An ecomorphological approach to the relationship between craniomandibular morphology and diet in sigmodontine rodents from central-eastern Argentina. ZOOLOGY 2023; 156:126066. [PMID: 36563591 DOI: 10.1016/j.zool.2022.126066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 11/21/2022] [Accepted: 12/10/2022] [Indexed: 12/16/2022]
Abstract
The key role of the skull in food intake and processing implicates its morphology should be to some extent adapted to the functional demands present in different diets, while also showing similarities between those which are closely related. Sigmodontine rodents, with a generalist body plan and broad dietary habits, are an interesting case study to explore these relationships. We used linear morphometrics to assess craniomandibular morphology, and explored its relationship with dietary composition and phylogeny in a sample of sigmodontines from central-eastern Argentina, representative of this subfamily's morphological and ecological diversity. We took 26 measurements performed on 558 specimens belonging to 22 species, and resorted to bibliographic information for proportion of food items in their diets, dietary categories, and phylogeny. Multivariate statistical analyses revealed a strong evolutionary integration between morphological traits of crania and mandibles, and a conspicuous relationship between them and dietary composition in our study group, independent of phylogeny. Species of larger sizes exhibited more robust skulls and a tendency towards folivorous diets, whereas smaller species had more gracile craniomandibular apparatuses and diets richer in seeds and invertebrates. Additionally, we used the observed patterns to made predictions of dietary categories for the three species of this region with unknown diets, completing the map of feeding ecology of one of the most researched group of sigmodontines and enabling future studies to further explore this topic. The present work contributes to understanding the link between morphology, ecology and phylogeny in small mammals.
Collapse
Affiliation(s)
- Sofía Barbero
- Laboratorio de Biología Integral de Sistemas Evolutivos, Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA - CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. Pabellón 2, Ciudad Universitaria, Intendente Güiraldes 2160, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
| | - Pablo Teta
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; División Mastozoología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. Ángel Gallardo 470, C1405 Ciudad Autónoma de Buenos Aires, Argentina
| | - Guillermo Hernán Cassini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y, Av. Constitución, Luján, B6700 Buenos Aires, Argentina
| |
Collapse
|
3
|
Decoupled Patterns of Diversity and Disparity Characterize an Ecologically Specialized Lineage of Neotropical Cricetids. Evol Biol 2023. [DOI: 10.1007/s11692-022-09596-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
4
|
Dubied M, Montuire S, Navarro N. Functional constraints channel mandible shape ontogenies in rodents. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220352. [PMID: 36300135 PMCID: PMC9579770 DOI: 10.1098/rsos.220352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
In mammals, postnatal growth plays an essential role in the acquisition of the adult shape. During this period, the mandible undergoes many changing functional constraints, leading to spatialization of bone formation and remodelling to accommodate various dietary and behavioural changes. The interactions between the bone, muscles and teeth drive this developmental plasticity, which, in turn, could lead to convergences in the developmental processes constraining the directionality of ontogenies, their evolution and thus the adult shape variation. To test the importance of the interactions between tissues in shaping the ontogenetic trajectories, we compared the mandible shape at five postnatal stages on three rodents: the house mouse, the Mongolian gerbil and the golden hamster, using geometric morphometrics. After an early shape differentiation, by both longer gestation and allometric scaling in gerbils or early divergence of postnatal ontogeny in hamsters in comparison with the mouse, the ontogenetic trajectories appear more similar around weaning. The changes in muscle load associated with new food processing and new behaviours at weaning seem to impose similar physical constraints on the mandible, driving the convergences of the ontogeny at that stage despite an early anatomical differentiation. Nonetheless, mice present a rather different timing compared with gerbils or hamsters.
Collapse
Affiliation(s)
- Morgane Dubied
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, 6 bd Gabriel, 21000 Dijon, France
| | - Sophie Montuire
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, 6 bd Gabriel, 21000 Dijon, France
- EPHE, PSL University, 75014 Paris, France
| | - Nicolas Navarro
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, 6 bd Gabriel, 21000 Dijon, France
- EPHE, PSL University, 75014 Paris, France
| |
Collapse
|
5
|
Burress ED, Muñoz MM. Functional Trade-offs Asymmetrically Promote Phenotypic Evolution. Syst Biol 2022; 72:150-160. [PMID: 35961046 DOI: 10.1093/sysbio/syac058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/14/2022] Open
Abstract
Trade-offs are thought to bias evolution and are core features of many anatomical systems. Therefore, trade-offs may have far-reaching macroevolutionary consequences, including patterns of morphological, functional, and ecological diversity. Jaws, like many complex anatomical systems, are comprised of elements involved in biomechanical trade-offs. We test the impact of a core mechanical trade-off, transmission of velocity versus force (i.e., mechanical advantage), on rates of jaw evolution in Neotropical cichlids. Across 130 species representing a wide array of feeding ecologies, we find that the velocity-force trade-off impacts evolution of the surrounding jaw system. Specifically, rates of jaw evolution are faster at functional extremes than in more functionally intermediate or unspecialized jaws. Yet, surprisingly, the effect on jaw evolution is uneven across the extremes of the velocity-force continuum. Rates of jaw evolution are 4 to 10-fold faster in velocity-modified jaws, whereas force-modified jaws are 7 to 18-fold faster, compared to unspecialized jaws, depending on the extent of specialization. Further, we find that a more extreme mechanical trade-off resulted in faster rates of jaw evolution. The velocity-force trade-off reflects a gradient from specialization on capture-intensive (e.g., evasive or buried) to processing-intensive prey (e.g., attached or shelled), respectively. The velocity extreme of the trade-off is characterized by large magnitudes of trait change leading to functionally divergent specialists and ecological stasis. By contrast, the force extreme of the trade-off is characterized by enhanced ecological lability made possible by phenotypes more readily co-opted for different feeding ecologies. This asymmetry of macroevolutionary outcomes along each extreme is likely the result of an enhanced utility of the pharyngeal jaw system as force-modified oral jaws are adapted for prey that require intensive processing (e.g., algae, detritus, and molluscs). The velocity-force trade-off, a fundamental feature of many anatomical systems, promotes rapid phenotypic evolution of the surrounding jaw system in a canonical continental adaptive radiation. Considering that the velocity-force trade-off is an inherent feature of all jaw systems that involve a lower element that rotates at a joint, spanning the vast majority of vertebrates, our results may be widely applicable across the tree of life. [adaptive radiation; constraint; decoupling; jaws; macroevolution; specialization].
Collapse
Affiliation(s)
- Edward D Burress
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, USA
| | - Martha M Muñoz
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut, USA
| |
Collapse
|
6
|
Maestri R, Luza AL, Hartz SM, de Freitas TRO, Patterson BD. Bridging macroecology and macroevolution in the radiation of sigmodontine rodents. Evolution 2022; 76:1790-1805. [PMID: 35794070 DOI: 10.1111/evo.14561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 01/22/2023]
Abstract
Investigations of phenotypic disparity across geography often ignore macroevolutionary processes. As a corollary, the random null expectations to which disparity is compared and interpreted may be unrealistic. We tackle this issue by representing, in geographical space, distinct processes of phenotypic evolution underlying ecological disparity. Under divergent natural selection, assemblages in a given region should have empirical disparity higher than expected under an evolutionarily oriented null model, whereas the opposite may indicate constraints on phenotypic evolution. We gathered phylogenies, biogeographic distributions, and data on the skull morphology of sigmodontine rodents to discover which regions of the Neotropics were more influenced by divergent, neutral, or constrained phenotypic evolution. We found that regions with higher disparity than expected by the evolutionary-oriented null model, in terms of both size and shape, were concentrated in the Atlantic Forest, suggesting a larger role for divergent natural selection there. Phenotypic disparity in the rest of South America, mainly the Amazon basin, northeastern Brazil, and Southern Andes, was constrained-lower than predicted by the evolutionary model. We also demonstrated equivalence between the disparity produced by randomization-based null models and constrained-evolution null models. Therefore, including evolutionary simulations into the null modeling framework used in ecophylogenetics can strengthen inferences on the processes underlying phenotypic evolution.
Collapse
Affiliation(s)
- Renan Maestri
- Departamento de Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil.,Negaunee Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, 60605
| | - André L Luza
- Departamento de Ecologia e Evolução, Universidade Federal de Santa Maria, Santa Maria, 97105-900, Brazil
| | - Sandra M Hartz
- Departamento de Ecologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Thales R O de Freitas
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Bruce D Patterson
- Negaunee Integrative Research Center, Field Museum of Natural History, Chicago, Illinois, 60605
| |
Collapse
|
7
|
Tavares WC, Coutinho LC, Oliveira JA. Locomotor habits and phenotypic evolution of the appendicular skeleton in the oryzomyalian radiation in the Neotropics (Sigmodontinae, Cricetidae, Rodentia). J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- William Corrêa Tavares
- Núcleo Multidisciplinar de Pesquisa em Biologia—NUMPEX‐BIO Campus Duque de Caxias Professor Geraldo Cidade Universidade Federal do Rio de Janeiro Duque de Caxias Brazil
- Programa de Pós‐Graduação em Biodiversidade e Biologia Evolutiva Instituto de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Ludmilla Carvalho Coutinho
- Programa de Pós‐Graduação em Biodiversidade e Biologia Evolutiva Instituto de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
- Setor de Mastozoologia Departamento de Vertebrados Museu Nacional Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - João Alves Oliveira
- Programa de Pós‐Graduação em Biodiversidade e Biologia Evolutiva Instituto de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
- Setor de Mastozoologia Departamento de Vertebrados Museu Nacional Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| |
Collapse
|
8
|
Bubadué J, Cáceres N, Melo G, Sponchiado J, Battistella T, Newton J, Meloro C. Niche partitioning in small mammals: interspecific and biome-level analyses using stable isotopes. J Mammal 2021. [DOI: 10.1093/jmammal/gyab063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Abstract
Small mammal assemblages from South America provide a unique opportunity to measure coexistence and niche partitioning between marsupials and placentals. We tested how these two major clades partition environmental resources by comparing stable isotopic ratios of similar sized Didelphidae and Sigmodontinae in four Brazilian biomes: Pampas grassland, Pantanal wetland, Cerrado woodland savanna, and Atlantic Forest. Generally, didelphid isotopic niche follows a scaling law, because we found an association between δ15N enrichment and body mass. Sigmodontines that primarily partition the environment via forest strata showed a greater intake of C4 or/and crassulacean acid metabolism (CAM) plants than didelphids, as reflected by their wider trophic niche. Values of δ13C were highest in savannas and grasslands (Cerrado and Pampas biomes), and values of δ15N were highest in the Atlantic Forest (in sigmodontines) and Pampas (in didelphids). While assessing patterns between the two major Brazilian biomes (Atlantic Forest and Cerrado), we found evidence of a broader trophic niche for both clades in the Cerrado. In the Atlantic Forest, niche occupation by Didelphidae was completely enclosed within the Sigmodontinae trophic niche. Both clades showed less overlap in the Cerrado, a less productive environment. Our results highlight the importance of a comparative framework and the use of stable isotopes for testing ecological questions related to how small mammalian communities partition their niche.
Collapse
Affiliation(s)
- Jamile Bubadué
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
| | - Nilton Cáceres
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Geruza Melo
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Jonas Sponchiado
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Thaís Battistella
- Programa de Pós-Graduação em Biodiversidade Animal, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Laboratório de Mastozoologia, Departamento de Ecologia e Evolução, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Jason Newton
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará, IFCE, Jaguaribe, CE, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, IFFar, Alegrete, RS, Brazil
- National Environmental Isotope Facility, East Kilbride, United Kingdom
| | - Carlo Meloro
- Research Centre in Evolutionary Anthropology and Palaeoecology, School of Biological & Environmental Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| |
Collapse
|