#2Feifei Zhou(FNU: Fujian Normal University)H-Index: 8
Last. Keyan Fang(FNU: Fujian Normal University)H-Index: 23
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Monitoring cambial activity is important for a better understanding of the mechanisms governing xylem growth responses to climate change, providing scientific basis about tree-ring-based climate reconstructions and projections about tree growth under future climate scenarios. It plays an even more important role in investigating evergreen tree growth in regions with less distinct seasonal cycles. Subtropical evergreen forests have been studied in recent years for their sensitivity to climate cha...
Songbirds learn their songs culturally, through imitating tutors. The vocal culture of a songbird population changes as new song units (syllables) are introduced through immigration, copying errors, and innovation, while other syllables fall out of use. This leads to a diversification of the syllable pool across the species, much like the diversification and spatial patterns of human language. Vocal cultures have been well studied in male songbirds but have been largely overlooked in females. He...
#2Paula Dentzien-Dias(UFRGS: Federal University of Rio Grande do Sul)H-Index: 12
Last. Heitor Francischini(UFRGS: Federal University of Rio Grande do Sul)H-Index: 10
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Provelosaurus americanus is the only known representative of the Pareiasauria in the Americas. This mid-size pareiasaur from the Rio do Rasto Formation of southern Brazil has been traditionally considered to be related to smaller forms from the South African Karoo known as the ‘dwarf pareiasaurs’ of Lopingian age. P. americanus, however, co-existed with dinocephalians, which indicates a Guadalupian age. New fossils provide a nearly complete osteological account that forms the basis for a revised...
#2L Garaud(UNIL: University of Lausanne)H-Index: 1
Last. Claus Wedekind(UNIL: University of Lausanne)H-Index: 45
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Salmonid fish have become important models in evolution and ecology, but possible effects of embryo or larval sex are mostly ignored, probably because morphological gonad formation starts only months after hatching and sexual maturation years later. However, recent gene expression studies and first observations in domestic strains suggest that sex-specific life histories could already start at an embryonic stage. Here we test this hypothesis in embryos and larvae of lake char (Salvelinus umbla)....
Last. Nico Posnien(GAU: University of Göttingen)H-Index: 22
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The ability of powered flight in insects facilitated their great evolutionary success allowing them to occupy various ecological niches. Beyond this primary task, wings are often involved in various premating behaviors, such as the generation of courtship songs and the initiation of mating in flight. These specific functions imply special adaptations of wing morphology, as well as sex-specific wing morphologies. Although wing morphology has been extensively studied in Drosophila melanogaster (Me...
Last. Edina Nemesházi(VUW: University of Veterinary Medicine Vienna)H-Index: 6
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Sex reversal is a mismatch between genetic sex (sex chromosomes) and phenotypic sex (reproductive organs and secondary sexual traits). It can be induced in various ectothermic vertebrates by environmental perturbations, such as extreme temperatures or chemical pollution, experienced during embryonic or larval development. Theoretical studies and recent empirical evidence suggest that sex reversal may be widespread in nature and may impact individual fitness and population dynamics. So far, howev...
Last. Fernanda Delborgo Abra(SCBI: Smithsonian Conservation Biology Institute)H-Index: 6
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Over the past two decades, our knowledge of the ecological impacts of roads has increased rapidly. It is now clear that the environmental effects of transportation infrastructure are inextricable from transportation benefits to economic, social, and cultural values. Despite the necessity of optimizing these multiple values, road planners, scientists and practitioners have no established methodology or pluralistic approach to address growing ethical complexities. We articulate five ethical issues...
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