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| Fuentes Mayo, Vladimir. |
| Se estudió la distribución geográfica, asociación, densidad, supervivencia in situ y factores de riesgo para las poblaciones de Coryphantha cornifera y Stenocactus anfractuosus. La búsqueda de las especies se hizo mediante recorridos de campo en los estados de México, Hidalgo, Tlaxcala, Puebla y Querétaro. En los sitios donde se encontraron estas especies, se registraron las coordenadas geográficas y altitud. Se establecieron parcelas de 400 m2 donde se marcaron todos los individuos presentes; para cada uno se obtuvieron datos morfométricos y número de costillas o tubérculos; también se registró la ocupación del hábitat, el estado fenológico y la condición sanitaria. Las plantas fueron censadas cada tres meses. C. cornifera y S. anfractuosus se encontraron... |
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Palavras-chave: Distribución geográfica; Densidad; Riesgo; Cactáceas; Doctorado; Botánica; Globose cacti; Mexico; Reproductive traits; Mating systems; Doctorado; Botánica. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/734 |
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| Jones, D.N.. |
| An evolutionary understanding of the complex mating systems of megapodes has been impaired by a historical and simplistic classification system that assumed all species to be monogamous. This approach has been challenged by behavioural ecology theories that emphasize the primacy of the individual attempt to maximize its own fitness. From this point of view the remarkable incubation techniques and the recently described behaviours of some clearly promiscuous species can be more clearly understood. In particular, the influence of the type of incubation-heat source on the mating system is paramount. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Mating systems; Monogamy; Promiscuity.; 42.83. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317668 |
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| Dekker, R.W.R.J.; Jones, D.N.. |
| Contents Contents................................................................................................................................................................3 Introduction..........................................................................................................................................................3 Current studies on megapode phylogeny (Brom, T.G. & R.W.R.J. Dekker) ..............................................7 Megapode phylogeny and the interpretation of incubation strategies (Dekker, R.W.R.J. & T.G. Brom)...19 An evolutionary approach to megapode mating systems (D.N. Jones)....................................................33 Mate choice in Australian brush-turkeys Alectura lathami: A preliminary... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Galliformes; Aves; Phylogeny; Incubation strategies; Mating systems; Bibliography.; 42.83. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/317553 |
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| Cardoso,João Custódio Fernandes; Viana,Matheus Lacerda; Matias,Raphael; Furtado,Marco Túlio; Caetano,Ana Paula de Souza; Consolaro,Hélder; Brito,Vinícius Lourenço Garcia de. |
| ABSTRACT Angiosperms display an enormous diversity of forms, functions and strategies when it comes to reproduction. This multiplicity has been translated into several terminological concepts and contexts, which have facilitated further research. On the other hand, the use of terms that address the reproduction of flowering plants has been shown to be inconsistent in the literature, complicating communication among specialists. Key terms, such as “reproductive system”, “mating system” and “sexual system”, among others, have been frequently cited as synonyms, and even used in different circumstances. This review proposes to establish a consistent nomenclatural classification in the field of angiosperms reproductive biology in order to facilitate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apomictic systems; Asexual reproduction; Floral systems; Flowering plants; Incompatibility systems; Mating systems; Reproductive biology; Sexual reproduction; Sexual systems. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300329 |
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