Seasonal and environmentally induced variation in the type and frequency of leaf trichomes of Wigandia urens (Ruiz & Pavon) Kunth (Hydrophyllaceae) was studied. Depending on the microsite, W. urens plants had smooth leaves ...
Zamora-Abrego, JG; Zúñiga-Vega, José Jaime; Nieto-Montes de Oca, A(2007)
We document variation among 13 populations of distinct species of the lizard genus Xenosaurus in four key reproductive traits: minimum size at maturity, litter size, size at birth, and relative clutch mass (RCM). Despite ...
We document variation among 13 populations of distinct species of the lizard genus Xenosaurus in four key reproductive traits: minimum size at maturity, litter size, size at birth, and relative clutch mass (RCM). Despite ...
1 Gaps in the forest canopy allow establishment of many understorey species. As gaps close, their: demographic behaviour is affected by changing environmental conditions. A demographic analysis of Primula vulgaris populations ...
Pulido, MT; Valverde-Valdés, María Teresa; Caballero, J(2007)
To understand the population dynamics of a species, it is necessary to document the way in which its demographic behaviour varies through space and time. Anthropogenic disturbance, such as shifting cultivation, is an ...
To understand the population dynamics of a species, it is necessary to document the way in which its demographic behaviour varies through space and time. Anthropogenic disturbance, such as shifting cultivation, is an ...
We describe a new species of Barisia from the oak-pine and cloud forests on the southern slopes of the central Transvolcanic Belt in the states of Mexico and Morelos, Mexico, and report on variation in a sample of 21 ...
Micrurus pachecogili is a rare coralsnake that inhabits the desert region around Zapotitlan Salinas in southern Puebla, Mexico. The original description of this species was based on 2 specimens. We report on morphological ...
Several studies have proposed a group of morpho-functional traits as determinants of the ecological strategy of species. Among these, four morpho-functional traits are considered to be relevant in determining a plant's ...
Mascaro, M; Castillo, AM; Simoes, N; Chiappa-Carrara, X(2007)
Las Palmas lagoon is a part of the hydrographic system of Pom-Atasta-Puerto Rico, NE of Laguna de Terminos, southern Gulf of Mexico. Swimming crabs of the genus Callinectes abound in this area and play an important role ...
In this paper the Vavilov-Cherenkov radiation produced by an electromagnetic pulse propagating, unchanged in shape, inside a medium is analysed. The electromagnetic pulse induces a polarization charge which moves inside ...
We characterize the Radon-Nikodym property of a Banach space X in terms of the existence of nontangential limits of X-valued harmonic functions u defined in a domain D subset of R-n, n > 2, with Lipschitz boundary and ...