Results 241 to 250 of about 54,970 (348)

Oxygen consumption from air and water, ammonia and urea‐N excretion, and Na+ fluxes during progressive aquatic hypoxia in Amazonian armoured catfish Pterygoplichthys gibbiceps and Pterygoplichthys pardalis

Journal of Fish Biology, EarlyView.
Abstract The Amazonian loricariid fish Pterygoplichthys gibbiceps, from the Rio Negro, and Pterygoplichthys pardalis, from the Rio Solimões, are facultative air‐breathers that can use the stomach as an air‐breathing organ. Measurement of oxygen uptake under progressive aquatic hypoxia revealed a relatively high hypoxia resistance of both species.
Bernd Pelster, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Correction: Functional diversity of Brazilian bees: revealing the unique patterns of the Neotropics. [PDF]

Oecologia
Cordeiro GD, Giannini TC, Consorte PM, Costa ACJ, Machida WS, Marques BF, Mazzei ND, Menezes PP, Resende LS, Shimoda JA, Souza RS, Acosta AL, Aguiar AJC, Almeida EAB, Alves DA, Alves-Dos-Santos I, Andrade TO, Anjos-Silva EJ, Barbosa AS, Barbosa ERM, Bezerra LA, Borges RC, Brito TF, Camacho GP, Campbell AJ, Castro MS, Coelho BWT, Ferrari RR, Garófalo CA, González-Chaves AD, Keller GO, Lichtenberg EM, Marshall L, Martínez-Martínez CA, Martins MB, Martins AC, Maués MM, Moleiro HP, Mouga DMDS, de Oliveira FF, Ramos KS, Ramos RL, Rocha-Filho LC, Santos IPV, Santos S, Santos Júnior JE, Shibata A, Silva DP, Sousa FG, Teixeira CMN, Tietz AL, Trindade-Santos ME, Vilhena PS, Vivallo F, Carvalheiro LG.   +54 more
europepmc   +1 more source

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

Journal of Fish Biology, EarlyView.
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira, Roberto E. Reis, Nelson F. Fontoura   +2 more
wiley   +1 more source

 <i>Carex huancabambica</i> (Cyperaceae), a new species from the Peruvian and Ecuadorian Andes. [PDF]

PhytoKeys
González-Gallego L, Benítez-Benítez C, Reznicek AA, Cano A, Oleas NH, Martín-Bravo S, Jiménez-Mejías P.   +6 more
europepmc   +1 more source

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

Journal of Fish Biology, EarlyView.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel, Renata Coelho Rodrigues Noronha, Bruno Rafael Ribeiro de Almeida, Manoella Gemaque Cavalcante, Cleusa Yoshiko Nagamachi, Julio Cesar Pieczarka, Luís Reginaldo R. Rodrigues   +6 more
wiley   +1 more source

An Overview of Orchidaceae from Brazil: Advances and Shortfalls After 400 Years of Studies. [PDF]

Plants (Basel)
Pessoa EM, Araújo AM, Barberena FFVA, Batista JAN, Benelli AP, Bento JSP, Borba EL, Camelo-Júnior AE, Cantuária PC, Cavalcanti LW, Cintra MCS, Engels M, Feitoza LHJ, Felix LP, Ferreira AWC, F Fiorini C, Guimarães LRS, Klein VP, Koch AK, Koehler S, Krahl AH, Krahl DRP, Leal BSS, Macedo A, Machado ICS, Mauad AVSR, Mayer JLS, Meneguzzo TEC, Menini Neto L, Moraes AP, Milet-Pinheiro P, Nollet F, Oliveira EM, Oliveira MS, Pansarin ER, Pinheiro F, Royer CA, Santos IS, Silva-Pereira V, Smidt EC, Vieira TL, Zandoná LR, Zavatin D, van den Berg C.   +43 more
europepmc   +1 more source

Phylogeographic Studies Depict the Role of Space and Time Scales of Plant Speciation in a Highly Diverse Neotropical Region

, 2016
Bárbara Simões Santos Leal, Clarisse Palma da Silva, Fábio Pinheiro   +2 more
openalex   +2 more sources

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins‐Araguaia basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo, Marlon Felipe Chumber Ferreira, Aline Nascimento Silva, Wolmar Benjamin Wosiacki   +3 more
wiley   +1 more source

Global primary predictors of extinction risk in primates. [PDF]

Proc Biol Sci
Galán-Acedo C, Verde Arregoitia LD, Arasa-Gisbert R, Auliz-Ortiz D, Saldivar-Burrola LL, Gouveia SF, Correia I, Rosete-Vergés FA, Dinnage R, Villalobos F.   +9 more
europepmc   +1 more source

Joint effects of elevated copper and temperature in juvenile Tambaqui exposed in black and white waters of the Amazon

Journal of Fish Biology, EarlyView.
Abstract This study aimed to investigate how exposure to elevated water temperature and metal concentration jointly affect the physiology of Amazonian fish. Aboard a research vessel in the Amazon, we evaluated the effects of water temperature (river T°C at 31.5°C and a + 4°C increase to 35.5°C) and of 3‐h copper (Cu) exposure (up to 600 μg/L) in ...
Anne Crémazy, Carolyn Morris, Susana Braz‐Mota, Chris M. Wood, Rafael M. Duarte, Ora E. Johannsson, Adalberto L. Val   +6 more
wiley   +1 more source