1
|
de Fraga R, P. Santos-Jr A, P. Werneck F, C. Costa H, T. Guimarães J, Perez R, Graboski Mendes R, Mott T, Vaz-Silva W, Ribeiro S. The overlooked underground diversity: physical and chemical edaphic structure predict morphological variation in South American amphisbaenians (Squamata: Amphisbaenidae). STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2022. [DOI: 10.1080/01650521.2022.2147046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Rafael de Fraga
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Alfredo P. Santos-Jr
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Fernanda P. Werneck
- Coordenação de Biodiversidade, Programa de Coleções Científicas Biológicas, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Henrique C. Costa
- Departamento de Zoologia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Jéssica T. Guimarães
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Santarém, Brazil
| | - Renata Perez
- Laboratório de Herpetologia, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Roberta Graboski Mendes
- School of Zoology, Faculty of Life Sciences, the Steinhardt Museum of Natural History, Tel-Aviv University, Tel-Aviv, Israel
| | - Tamí Mott
- Laboratório de Biologia Integrativa, Universidade Federal de Alagoas, Maceió, Brazil
| | - Wilian Vaz-Silva
- Centro de Estudos e Pesquisas Biológicas, Escola de Ciências Médicas e da Vida, Pontifícia Universidade Católica de Goiás, Goiânia, Brazil
| | - Síria Ribeiro
- Laboratório de Ecologia e Comportamento Animal, Universidade Federal do Oeste do Pará, Santarém, Brazil
| |
Collapse
|
2
|
Bars-Closel M, Camacho A, Kohlsdorf T. Shifts in space and time: ecological transitions affect the evolution of resting metabolic rates in microteiid lizards. ACTA ACUST UNITED AC 2018; 221:jeb.175661. [PMID: 29880636 DOI: 10.1242/jeb.175661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 05/31/2018] [Indexed: 10/14/2022]
Abstract
Ecological diversification often encompasses exposure to new thermal regimes given by the use of specific spatial (microhabitat) and temporal (activity periods) niches. Empirical evidence provides links between temperature and physiology (e.g. rates of oxygen consumption), fostering predictions of evolutionary changes in metabolic rates coupled with ecological shifts. One example of such correspondence is the evolution of fossoriality and nocturnality in vertebrate ectotherms, where changes in metabolic rates coupled with niche transitions are expected. Because most studies address single transitions (fossoriality or nocturnality), metabolic changes associated with concomitant shifts in spatial and temporal components of habitat usage are underestimated, and it remains unclear which transition plays a major role for metabolic evolution. Integrating multiple ecological aspects that affect the evolution of thermosensitive traits is essential for a proper understanding of physiological correlates in niche transitions. Here, we provide the first phylogenetic multidimensional description of effects from ecological niche transitions both in space (origin of fossorial lineages) and in time (origin of nocturnal lineages) on the evolution of microteiid lizard (Gymnophthalmidae) metabolic rates. We found that evolution of resting metabolic rates was affected by both niche transitions, but with opposite trends. Evolution of fossoriality in endemic diurnal microteiids is coupled with a less thermally sensitive metabolism and higher metabolic rates. In contrast, a reduction in metabolic rates was detected in the endemic fossorial-nocturnal lineage, although metabolic thermal sensitivity remained as high as that observed in epigeal species, a pattern that likely reduces locomotion costs at lower temperatures and also favors thermoregulation in subsuperficial sand layers.
Collapse
Affiliation(s)
- Melissa Bars-Closel
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil
| | - Agustín Camacho
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, 05422-970, São Paulo, SP, Brazil
| | - Tiana Kohlsdorf
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901, Ribeirão Preto, SP, Brazil
| |
Collapse
|
3
|
Navega-Gonçalves MEC, Silva JRMCD. Sistema respiratório de Amphisbaena vermicularis e Amphisbaena microcephala (Squamata, Amphisbaenia, Amphisbaenidae). IHERINGIA. SERIE ZOOLOGIA 2013. [DOI: 10.1590/s0073-47212013000100003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A morfologia macro e microscópica da traqueia e pulmões de Amphisbaena vermicularis Wagler, 1824 e Amphisbaena microcephala (Wagler, 1824), assim como a ultraestrutura das câmaras respiratórias, foram descritas pela primeira vez neste estudo. A traqueia não se ramifica e seu segmento caudal, situado entre os pulmões, foi denominado brônquio. O pulmão esquerdo é alongado, saculiforme e unicameral, com parênquima faveolar na porção cranial e trabecular, na porção caudal. Câmaras respiratórias estão presentes em ambas as regiões do pulmão, mas é possível que a região caudal funcione também como reservatório de ar. O pulmão direito está reduzido nas duas espécies, no entanto em A. vermicularis a redução é bastante acentuada e apenas um vestígio deste órgão pode ser observado, mas em A. microcephala o pulmão direito é um órgão com limites definidos que se comunica com a porção caudal do tubo traqueal, através de dois orifícios. Pneumócitos tipo I e tipo II estão presentes nas câmaras respiratórias. As lâminas basais dos pneumócitos I e das células endoteliais encontram-se fundidas, de forma a diminuir a barreira ar-sangue, que é de aproximadamente 0,5 µm em A. microcephala. As características morfológicas descritas neste estudo podem representar adaptações que permitem a sobrevivência dos espécimes de Amphisbaenia nas galerias subterrâneas, onde passam a maior parte de suas vidas sob condições de baixa renovação de ar, níveis de umidade relativamente variáveis e partículas em suspensão.
Collapse
|
4
|
GANS CARL. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY 2005. [DOI: 10.1206/0003-0090(2005)289<0001:cabota>2.0.co;2] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
5
|
Navas CA, Antoniazzi MM, Carvalho JE, Chaui-Berlink JG, James RS, Jared C, Kohlsdorf T, Pai-Silva MD, Wilson RS. Morphological and physiological specialization for digging in amphisbaenians, an ancient lineage of fossorial vertebrates. ACTA ACUST UNITED AC 2004; 207:2433-41. [PMID: 15184515 DOI: 10.1242/jeb.01041] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Amphisbaenians are legless reptiles that differ significantly from other vertebrate lineages. Most species dig underground galleries of similar diameter to that of the animal. We studied the muscle physiology and morphological attributes of digging effort in the Brazilian amphisbaenid Leposternon microcephalum (Squamata; Amphisbaenia), which burrows by compressing soil against the upper wall of the tunnel by means of upward strokes of the head. The individuals tested (<72 g) exerted forces on the soil of up to 24 N. These forces were possible because the fibres of the longissimus dorsi, the main muscle associated with burrowing, are highly pennated, thus increasing effective muscle cross-sectional area. The muscle is characterized by a metabolic transition along its length: proximal, medial and distal fibres are fast contracting and moderately oxidative, but fibres closer to the head are richer in citrate synthase and more aerobic in nature. Distal fibres, then, might be active mainly at the final step of the compression stroke, which requires more power. For animals greater than a given diameter, the work required to compress soil increases exponentially with body diameter. Leposternon microcephalum, and probably some other highly specialized amphisbaenids, are most likely constrained to small diameters and can increase muscle mass and effective muscle cross-sectional area by increasing body length, not body diameter.
Collapse
Affiliation(s)
- Carlos A Navas
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão Travessa 14 No. 321, CEP 05508-900, SP, Brazil.
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
|
7
|
Brittain T. Cooperativity and allosteric regulation in non-mammalian vertebrate haemoglobins. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1991; 99:731-40. [PMID: 1790668 DOI: 10.1016/0305-0491(91)90136-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
1. This review illustrates the vast range of molecular functions expressed in non-mammalian vertebrate haemoglobins; with particular reference to the degree of aggregation of haemoglobin subunits and their interactions with allosteric effectors. 2. In at least the broadest sense, these properties suggest that haemoglobin function in non-mammalian vertebrates can be viewed against the evolutionary hierarchy of organisms rather than from a purely adaptive perspective.
Collapse
Affiliation(s)
- T Brittain
- Department of Biochemistry, University of Auckland, New Zealand
| |
Collapse
|
8
|
Abe AS. Experimental and field record of preferred temperature in the neotropical amphisbaenid Amphisbaena mertensi stauch (reptilia, amphisbaenidae). ACTA ACUST UNITED AC 1984. [DOI: 10.1016/0300-9629(84)90056-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
9
|
Tetens V, Brittain T, Christie D, Robb J, Wells R. Characterization and function of isolated hemoglobins from the tuatara, Sphenodon Punctatus (Reptilia: O. Rhynchocephalia). ACTA ACUST UNITED AC 1984. [DOI: 10.1016/0305-0491(84)90086-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Wells RM, Tetens V, Brittain T. Absence of cooperative haemoglobin-oxygen binding in Sphenodon, a reptilian relict from the Triassic. Nature 1983; 306:500-2. [PMID: 6646231 DOI: 10.1038/306500a0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
It is generally accepted that the sigmoidal nature of the haemoglobin-oxygen dissociation curve (ODC) is necessary for efficient oxygen transport in terrestrial vertebrates because it allows large volumes of oxygen to be bound or released for relatively small changes in the partial pressure of oxygen (PO2) in the blood. Furthermore, the amount of oxygen to tissues is increased by hydrogen ions produced from the dissociation of carbon dioxide in solution. The generality of these key features of cooperative oxygen binding and the Bohr effect holds for reptiles, birds and mammals, including representatives with special respiratory requirements for diving, burrowing and living at high altitude. Sphenodon punctatus is the sole surviving representative of the ancient order of 'beakhead' reptiles (order Rhynchocephalia) which were once widely distributed during the Triassic period before the spectacular radiation of dinosaur faunas. We have now investigated the oxygen transporting properties of blood from Sphenodon and find that the ODC is hyperbolic, with a high affinity for oxygen and very small Bohr effect. This combination of characteristics is unique among terrestrial vertebrates and accords with a low demand for oxygen and limited scope for aerobic activity.
Collapse
|
11
|
Myoglobin from the burrowing reptile Amphisbaena alba. Concentrations and functional characteristics. ACTA ACUST UNITED AC 1981. [DOI: 10.1016/0300-9629(81)90336-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|