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Registros recuperados: 7
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A synoptic revision of Inversodicraea (Podostemaceae) Naturalis
Cheek, M.; Feika, A.; Lebbie, A.; Goyder, D.; Tchiengue, B.; Sene, O.; Tchouto, P.; Burgt, X. van der.
Six new species of Inversodicraea (I. feika from Sierra Leone, I. liberia from Liberia, and I. ebo, I. eladii, I. tchoutoi, and I. xanderi from Cameroon) are described as new to science in the context of a synoptic revision of this African genus, now comprising 30 species, including I. cussetiana comb. nov., newly transferred from Macropodiella. Inversodicraea is now equal in number of species to Ledermanniella (as redefined), as the largest genus of the family in Africa. Terete or slightly dorsiventrally flattened leaf petioles (not sheathing and/or stipulate) are newly discovered to distinguish the genus from Ledermanniella, in addition to the presence of scale-leaves. Inversodicraea boumiensis, I. annithomae, and I. bosii are redelimited in this paper....
Tipo: Article / Letter to the editor Palavras-chave: Conservation; Extinction risk; Hybridisation; Hydroelectric dam projects; Rheophytes; Stage-dependent heteromorphy.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/636690
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Applications and implications of phylogeography for canid conservation Mastozool. neotrop.
Martinez,Pablo A; Zurano,Juan P; Molina,Wagner F; Bidau,Claudio J.
Phylogeographic studies are currently used to infer historical demographic processes such as gene fow, determination of effective population sizes, colonisation dynamics, and population botlenecks, as well as for the determination of species boundaries and the identification of possible conservation units. We present a review of the main contributions of this approach, and its applications and implications for canid conservation. Studies performed in canids have shown that the number of named subspecies is often larger than that of phylogeographic units. In recent times, the fragmentation of habitats has increased and one of the major concerns of conservation biologists is the occurrence of inbreeding. Large-sized canids have demonstrated to have enough...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canidae; Conservation units; Genetics; Hybridisation; Inbreeding.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832013000100005
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Avian hybrids: incidence and geographic distribution of hybridisation in birds Naturalis
Aliabadian, M.; Nijman, V..
Tipo: Book review Palavras-chave: Book review; Geographic distribution; Hybridisation; Birds; 42.83.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/217426
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Polyploid fish and shellfish: Production, biology and applications to aquaculture for performance improvement and genetic containment ArchiMer
Piferrer, Francesc; Beaumont, Andy; Falguiere, Jean-claude; Flajshans, Martin; Haffray, Pierrick; Colombo, Lorenzo.
Polyploids can be defined as organisms with one or more additional chromosome sets with respect to the number most frequently found in nature for a given species. Triploids, organisms with three sets of homologous chromosomes, are found spontaneously in both wild and cultured populations and can be easily induced in many commercially relevant species of fish and shellfish. The major consequence of triploidy is gonadal sterility, which is of advantage in the aquaculture of molluscs since it can result in superior growth. In fish, the induction of triploidy is mainly used to avoid problems associated with sexual maturation such as lower growth rates, increased incidence of diseases and deterioration of the organoleptic properties. Triploidy can also be used...
Tipo: Text Palavras-chave: GMO; Transgenic containment; Genetic containment; Reproductive containment; Hybridisation; Sterility; Fish; Shellfish; Fish farming; Aquaculture; Tetraploidy; Triploidy; Polyploidy.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6648.pdf
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Produção de sêmen de touros mestiços Bos Taurus/Bos Indicus 1. Efeitos da fração genética de Bos taurus. Repositório Alice
ABREU, C. P. de; BARBOSA, P. F.; MADALENA, F.E.; BARBOSA, R. T.; ELER, J. P.; BRUSCHI, J. H.; JONDET, R..
2001
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Cmpostos; Concentração espermática; Hibridação; Motilidade; Composites; Hybridisation; Motility; Sperm; Bos taurus.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/45957
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REFLEXIONES ANTROPOLÓGICAS EN TORNO A LOS SISTEMAS AGROALIMENTARIOS LOCALES: LA PROBLEMÁTICA DEL DESARROLLO ENDÓGENO EN LAS COSTAS AUSTRALES CHILENAS AgEcon
Saavedra Gallo, Gonzalo; Macias Vazquez, Alfredo.
Our purpose in the present work is to make a methodological contribution to enrich the SYAL concept from two points of view. Firstly, as a critical reconsideration of the theory of territorial development, and more specifically SYAL development, taking into account the fact that the local institutional framework is the result of the complex - even conflictive - interaction of economic rationales based on diverse cultural logics. Secondly, as an analysis of the strategies promoted by this type of development, identifying the endogenous components which strengthen and reinforce in local actors the ability to reflectively structure and re-structure system relationships at the territorial level. The empirical-ethnographic support for these reflections is drawn...
Tipo: Conference Paper or Presentation Palavras-chave: Endogenous development; Localised agro food system; Small-scale fishing; Reflection; Hybridisation; Subjectivity; Chile.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Labor and Human Capital.
Ano: 2010 URL: http://purl.umn.edu/95227
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Systematic notes on Asian birds. 49. A preliminary review of the Aegithalidae, Remizidae and Paridae Naturalis
Eck, S.; Martens, J..
Proposed recent taxonomic changes in Paridae, Aegithalidae, and Remizidae are reviewed within the geographic scope of this series and their reliability is discussed in terms of the Biological Species Concept with respect to secondary contacts, hybridization, introgression, bioacoustics, and molecular genetics. Certain previously unpublished data are added to support the taxonomic decisions.
Tipo: Article / Letter to the editor Palavras-chave: Paridae; Aegithalidae; Remizidae; Species limits; Systematics; Taxonomy; Eastern Palaearctic region; Indo-Malayan region; Morphology; Bioacoustics; Molecular genetics; Secondary contacts; Hybridisation; Introgression; 42.83.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/209958
Registros recuperados: 7
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