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Fish represent the most ancestral and specious group of vertebrates, and occupy more diverse aquatic environments around the world. Ichthyofauna is extremely diverse, especially in megadiverse countries occupying biogeographical regions such as the Neotropical Region, which covers an extensive area between North and South America. Much of this biodiversity will be extinct, even before science knows any aspect of its biology. Like this, Neotropical fish genetics started in the end of the 70’s with papers studying the chromosomes of Hoplias malabaricus (Family Erythrinidae) and the karyotype variation among three genera of the family Anostomidae. The topic at that time was concentrated in tw...
This volume explores the South Brazilian grasslands, a unique complex of ecosystems in Brazil. Despite high biodiversity and many important ecosystem services, their biodiversity and conservation are neglected, both nationally, and globally. This book provides a state-of-the-art synthesis of knowledge on the biodiversity and its drivers in South Brazilian grasslands and associated ecosystems. Further, the book discusses conservation challenges and options, as well as management strategies that help to maintain the region’s uniqueness. The chapters present information on biodiversity and ecological features of the region, and put this information into the context of historical and current human land uses, allowing for links to global discussions of conservation and sustainable development. Altogether, the book contains 20 chapters organized in four sections. The book is directed at researchers, students and professionals working with biodiversity and sustainable development in southern Brazil, as well as to the international scientific and conservation community interested in grasslands and associated ecosystems, particularly in tropical and subtropical regions.
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Neotropical ichthyology: an overview; Fossils and geological evidence; The stage for neotropical fish diversification: a history of tropical south american rivers; The temporal context for the diversification of neotropical fishes; Phylogeny of fossil characiformes and paleobiogeography of the Tremembe formation, Sao Paulo; Brazil; Maastrichtian to early late paleocene freshwater osteichthyes of Bolivia: additions and comments; Characiformes; Higher lever phylogenetic concepts within characiforms (Ostariophysi), a historical review; Relationships of the characidiinae and phylogeny of characiform fishes (Teleostei: ostariophysi); Phylogenetic study of the hemiodontidae (Ostariophysi: characif...
The contemporary crisis of emerging disease has been a century and a half in the making. Human, veterinary, and crop health practitioners convinced themselves that disease could be controlled by medicating the sick, vaccinating those at risk, and eradicating the parts of the biosphere responsible for disease transmission. Evolutionary biologists assured themselves that coevolution between pathogens and hosts provided a firewall against disease emergence in new hosts. Most climate scientists made no connection between climate changes and disease. None of these traditional perspectives anticipated the onslaught of emerging infectious diseases confronting humanity today. As this book reveals, a...
O rio Iguaçu nasce na confluência dos rios Atuba e Irai, e desemboca no rio Paraná, em Foz do Iguaçu. A ictiofauna deste rio, desde os primeiros trabalhos realizados, sempre foi considerada pobre e de pequeno porte, entretanto, apresenta um elevado grau de endemismo favorecido pelo surgimento das Cataratas do Iguaçu, que exerceram um papel fundamental neste processo. Esta obra busca uma fonte aglutinadora, mas sintetizada, sistematizada, especializada e atualizada das informações publicadas, até o momento, sobre a ictiofauna do baixo rio Iguaçu, fornecendo chaves de identificação, caracterizações morfológicas, fotos, dados sobre a biologia e distribuição geográfica das espécies registradas na região, além de um glossário com termos técnicos.