Data from: Genetic and paleomodelling evidence of the population expansion of the cattle egret Bubulcus ibis in Africa during the climatic oscillations of the Late PleistoceneCarlos Congrains, Antônio F. Carvalho, , Graeme S. Cumming, Dominic A. W. Henry, Shiiwua A. Manu, Jacinta Abalaka, Cristiano D. Rocha, Moussa S. Diop, Joãozinho Sá, Hamilton Monteiro, Lars H. Holbech, Francis Gbogbo & Silvia N. Del Lama
Increasing aridity during glacial periods produced the retraction of forests and the expansion of arid and semi-arid environments in Africa, with consequences for birds. Cattle egret (Bubulcus ibis) is a dispersive species that prefers semiarid environments and requires proximity to bodies of water. We expected that climatic oscillations led to the expansion of the range of the cattle egret during arid periods, such as the Last Maximum Glacial (LGM) and contraction of distribution during the...
Data from: Highly conserved Z and molecularly diverged W chromosomes in the fish genus Triportheus (Characiformes, Triportheidae)C.F. Yano, L.A.C. Bertollo, T. Ezaz, V. Trifonov, A. Sember, T. Liehr & M.B. Cioffi
The main objectives of this study were to test: (1) whether the W-chromosome differentiation matches to species’ evolutionary divergence (phylogenetic concordance) and (2) whether sex chromosomes share a common ancestor within a congeneric group. The monophyletic genus Triportheus (Characiformes, Triportheidae) was the model group for this study. All species in this genus so far analyzed have ZW sex chromosome system, where the Z is always the largest chromosome of the karyotype, whereas the W chromosome...
Data from: Model-based analysis supports interglacial refugia over long-dispersal events in the diversification of two South American cactus speciesManolo Perez, Isabel A. S. Bonatelli, Evandro Moraes & Bryan C. Carstens
Pilosocereus machrisii and P. aurisetus are cactus species within the P. aurisetus complex, a group of eight cacti that are restricted to rocky habitats within the Neotropical savannas of eastern South America. Previous studies have suggested that diversification within this complex was driven by distributional fragmentation, isolation leading to allopatric differentiation, and secondary contact among divergent lineages. These events have been associated with Quaternary climatic cycles, leading to the hypothesis that the xerophytic vegetation patches...
Data from: Genetic variation in blue whales in the eastern Pacific: implication for taxonomy and use of common wintering groundsRichard G. LeDuc, F.I. Archer, Aimee R. Lang, Karen K. Martien, Brittany Hancock-Hanser, Juan P. Torres-Florez, Rodrigo Hucke-Gaete, Howard C. Rosenbaum, Koen Van Waerebeek, Robert L. Brownell, Barbara L. Taylor & F. I. Archer
Many aspects of blue whale biology are poorly understood. Some of the gaps in our knowledge, such as those regarding their basic taxonomy and seasonal movements, directly affect our ability to monitor and manage blue whale populations. As a step towards filling in some of these gaps, microsatellite and mtDNA sequence analyses were conducted on blue whale samples from the Southern Hemisphere, the eastern tropical Pacific (ETP), and the northeast Pacific. The results indicate that...
Data from: Cardiovascular variability analysis and baroreflex estimation in patients with type 2 diabetes in absence of any manifest neuropathySílvia Cristina Garcia De Moura-Tonello, Alberto Porta, Andrea Marchi, Alessandra De Almeida Fagundes, Cristina De Oliveira Francisco, Patricia Rehder-Santos, Juliana Cristina Milan-Mattos, Rodrigo Polaquini Simões, Mariana De Oliveira Gois & Aparecida Maria Catai
Introduction: Indexes derived from spontaneous heart period (HP) and systolic arterial pressure (SAP) fluctuations can detect autonomic dysfunction in individuals with type 2 diabetes mellitus (DM) associated to cardiovascular autonomic neuropathy (CAN) or other neuropathies. It is unknown whether HP and SAP variability indexes are sensitive enough to detect the autonomic dysfunction in DM patients without CAN and other neuropathies. Methods: We evaluated 68 males aged between 40 and 65 years. The group was composed...
Federal University of São Carlos5
The Ohio State University1
University of Milan1
Institute of Animal Physiology and Genetics1
University of Ghana1
Wildlife Conservation Society1
Southwest Fisheries Science Center1
University Austral de Chile1
National Marine Fisheries Service1
Jena University Hospital1