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Pollinator-mediated selection in a specialized pollination system: matches and mismatches across populations
(WILEY-BLACKWELL PUBLISHING, 2010-06-17)
Most studies on pollinator-mediated selection have been performed in
generalized rather than specialized pollination systems. This situation has
impeded evaluation of the extent to which selection acts on attraction ...
Phenotypic selection by kelp gulls against pear-shaped shells of the Antarctic limpet Nacella concinna
(Wiley Blackwell Publishing, Inc, 2019-10-30)
The Antarctic limpet (Nacella concinna) presents two ecotypes related to different water depths: littoral individuals have a robust and taller shell while sublittoral individuals are thinner and flatter. Among the environmental ...
Extraction of Building Roof Boundaries From LiDAR Data Using an Adaptive Alpha-Shape Algorithm
(Ieee-inst Electrical Electronics Engineers Inc, 2019-08-01)
The alpha-shape algorithm was developed to extract object shapes in 2-D space; however, the accuracy of the result depends on an appropriate choice of the parameter alpha. This parameter is directly related to point density ...
U-curve: A branch-and-bound optimization algorithm for U-shaped cost functions on Boolean lattices applied to the feature selection problem
(ELSEVIER SCI LTD, 2010)
This paper presents the formulation of a combinatorial optimization problem with the following characteristics: (i) the search space is the power set of a finite set structured as a Boolean lattice; (ii) the cost function ...
Phenotypic plasticity of the aedeagus of Drosophila mediopunctata: Effect of the temperature
(Pergamon-elsevier Science LtdOxfordInglaterra, 2005)
Pollinator-mediated selection on the nectar guide phenotype in the Andean monkey flower, Mimulus luteus
(Ecological Society of America, 2003)
Mimulus luteus (Scrophulariaceae) is a perennial herb occurring in the South
American Andes that shows a wide variation in the size and shape of a red spot on the
lower lobe of the yellow flower. We describe the preference ...
Variable selection patterns on the labellum shape of Geoblasta pennicillata, a sexually deceptive orchid
(Wiley Blackwell Publishing, Inc, 2009-09-07)
By mimicking shape and female mating pheromones, flowers of sexually deceptive orchids attract sexually excited males which pollinate them while trying to copulate. Although many studies have demonstrated the crucial ...
Gender classification based on fusion of different spatial scale features selected by mutual information from histogram of lbp, intensity, and shape
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2013)
In this paper, we report our extension of the use of feature selection based on mutual information and feature fusion to improve gender classification of face images. We compare the results of fusing three groups of features, ...
Evolution of the male genitalia: morphological variation of the aedeagi in a natural population of Drosophila mediopunctata
(SpringerDordrechtHolanda, 2009)