Search Results - "Crampton, William G. R."

Phylogenetic Systematics, Biogeography, and Ecology of the Electric Fish Genus Brachyhypopomus (Ostariophysi: Gymnotiformes) by Crampton, William G R, de Santana, Carlos David, Waddell, Joseph C, Lovejoy, Nathan R

“…A species-level phylogenetic reconstruction of the Neotropical bluntnose knifefish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) is presented, based on 60…”
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Electroreception, electrogenesis and electric signal evolution by Crampton, William G. R.

“…Electroreception, the capacity to detect external underwater electric fields with specialised receptors, is a phylogenetically widespread sensory modality in…”
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Sexual Signal Evolution Outpaces Ecological Divergence during Electric Fish Species Radiation by Arnegard, Matthew E., McIntyre, Peter B., Harmon, Luke J., Zelditch, Miriam L., Crampton, William G. R., Davis, Justin K., Sullivan, John P., Lavoué, Sébastien, Hopkins, Carl D.

“…Natural selection arising from resource competition and environmental heterogeneity can drive adaptive radiation. Ecological opportunity facilitates this…”
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Species-specific diversity of a fixed motor pattern: the electric organ discharge of Gymnotus by Rodríguez-Cattaneo, Alejo, Pereira, Ana Carolina, Aguilera, Pedro A, Crampton, William G R, Caputi, Angel A

“…Understanding fixed motor pattern diversity across related species provides a window for exploring the evolution of their underlying neural mechanisms. The…”
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Reproductive life-history strategies in a species-rich assemblage of Amazonian electric fishes by Waddell, Joseph C, Njeru, Steve M, Akhiyat, Yasmine M, Schachner, Benjamin I, Correa-Roldán, Ericka V, Crampton, William G R

“…The reproductive biology of only a small fraction of Neotropical freshwater fishes has been described, and detailed comparative studies of reproductive…”
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Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae) by Crampton, William G. R.(University of Central Florida Department of Biology)

“…The discus fishes of the genus Symphysodon are popular ornamental cichlids that occur in floodplain lakes and flooded forests of the lowland Amazon Basin…”
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REPRODUCTIVE CHARACTER DISPLACEMENT AND SIGNAL ONTOGENY IN A SYMPATRIC ASSEMBLAGE OF ELECTRIC FISH by Crampton, William G. R., Lovejoy, Nathan R., Waddell, Joseph C.

“…The reproductive signals of two or more taxa may diverge in areas of sympatry, due to selection against costly reproductive interference. This divergence,…”
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Oxygen Consumption in Weakly Electric Neotropical Fishes by Julian, David, William G. R. Crampton, Stephanie E. Wohlgemuth, Albert, James S.

“…Weakly electric gymnotiform fishes with wave-type electric organ discharge (EOD) are less hypoxia-tolerant and are less likely to be found in hypoxic habitats…”
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Phylogeny, biogeography, and electric signal evolution of Neotropical knifefishes of the genus Gymnotus (Osteichthyes: Gymnotidae) by Lovejoy, Nathan R., Lester, Kristie, Crampton, William G.R., Marques, Fernando P.L., Albert, James S.

“…The Neotropical knifefish genus Gymnotus is the most broadly distributed and the most diverse (34 + species) gymnotiform genus. Its wide range includes both…”
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Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish by Cardoso, Adauto L, Pieczarka, Julio C, Crampton, William G R, Ready, Jonathan S, de Figueiredo Ready, Wilsea M B, Waddell, Joseph C, de Oliveira, Jonas A, Nagamachi, Cleusa Y

“…Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus…”
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Sexual Signal Evolution Outpaces Ecological Divergence during Electric Fish Species Radiation by ARNEGARD, Matthew E, MCINTYRE, Peter B, HARMON, Luke J, ZELDITCH, Miriam L, CRAMPTON, William G. R, DAVIS, Justin K, SULLIVAN, John P, LAVOUE, Sébastien, HOPKINS, Carl D

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Reproductive effort and terminal investment in a multispecies assemblage of Amazon electric fish by Waddell, Joseph C., Crampton, William G. R.

“…The terminal investment hypothesis (TIH) predicts that individuals with favorable prospects for future reproduction (i.e., high residual reproductive value,…”
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A new taxonomist-curated reference library of DNA barcodes for Neotropical electric fish (Teleostei: Gymnotiformes) by Janzen, Francesco H, Crampton, William G R, Lovejoy, Nathan R

“…Abstract DNA barcoding is a useful tool for identifying species; however, successful barcode-based identification requires a reference library of barcode…”
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Evolution of a novel regulatory mechanism of hypoxia inducible factor in hypoxia-tolerant electric fishes by Elbassiouny, Ahmed A., Buck, Leslie T., Abatti, Luis E., Mitchell, Jennifer A., Crampton, William G.R., Lovejoy, Nathan R., Chang, Belinda S.W.

“…Hypoxia is a significant source of metabolic stress that activates many cellular pathways involved in cellular differentiation, proliferation, and cell death…”
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Interspecific variation in gill size is correlated to ambient dissolved oxygen in the Amazonian electric fish Brachyhypopomus (Gymnotiformes: Hypopomidae) by Crampton, William G. R, Chapman, Lauren J, Bell, Jason

“…Gymnotiform electric fish assemblage structure is strongly correlated to dissolved oxygen (DO) availability, which exhibits considerable heterogeneity among…”
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A New Species of Gymnotus (Gymnotiformes, Gymnotidae) from Uruguay: Description of a Model Species in Neurophysiological Research by Richer-de-Forges, Mathilde M, Crampton, William G. R, Albert, James S

“…Gymnotus omarorum is described from coastal and interior drainages of Uruguay, where it is locally abundant in streams and lagoons, and is not known to occur…”
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Biogeochemical water type influences community composition, species richness, and biomass in megadiverse Amazonian fish assemblages by Bogotá-Gregory, Juan David, Lima, Flávio C. T., Correa, Sandra B., Silva-Oliveira, Cárlison, Jenkins, David G., Ribeiro, Frank R., Lovejoy, Nathan R., Reis, Roberto E., Crampton, William G. R.

“…Amazonian waters are classified into three biogeochemical categories by dissolved nutrient content, sediment type, transparency, and acidity—all important…”
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Unexpected species diversity in electric eels with a description of the strongest living bioelectricity generator by de Santana, C. David, Crampton, William G. R., Dillman, Casey B., Frederico, Renata G., Sabaj, Mark H., Covain, Raphaël, Ready, Jonathan, Zuanon, Jansen, de Oliveira, Renildo R., Mendes-Júnior, Raimundo N., Bastos, Douglas A., Teixeira, Tulio F., Mol, Jan, Ohara, Willian, Castro, Natália Castro e, Peixoto, Luiz A., Nagamachi, Cleusa, Sousa, Leandro, Montag, Luciano F. A., Ribeiro, Frank, Waddell, Joseph C., Piorsky, Nivaldo M., Vari, Richard P., Wosiacki, Wolmar B.

“…Is there only one electric eel species? For two and a half centuries since its description by Linnaeus, Electrophorus electricus has captivated humankind by…”
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A new species of electric knifefish, genus Compsaraia (Gymnotiformes: Apteronotidae) from the Amazon River, with extreme sexual dimorphism in snout and jaw length by Albert, James S., Crampton, William G. R.

“…A new species of the neotropical electric fish genus Compsaraia is described from the western Amazon of Peru and Brazil. Compsaraia samueli is distinguishable…”
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To see or not to see: molecular evolution of the rhodopsin visual pigment in neotropical electric fishes by Van Nynatten, Alexander, Janzen, Francesco H, Brochu, Kristen, Maldonado-Ocampo, Javier A, Crampton, William G R, Chang, Belinda S W, Lovejoy, Nathan R

“…Functional variation in rhodopsin, the dim-light-specialized visual pigment, frequently occurs in species inhabiting light-limited environments. Variation in…”
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