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Functional aspects of genital differences in Leucauge argyra and L. mariana (Araneae: Tetragnathidae)
(2013)
Morphological studies have documented the tendency for male genitalia to diverge rapidly compared to other body parts in many animal groups, including spiders. But documentation of how differences in genital structures of ...
Hairy kisses: tactile cheliceral courtship affects female mating decisions in Leucauge mariana (Araneae, Tetragnathidae)
(2015)
Sexual selection is thought to be an important force driving the evolution of sexually dimorphic morphology and behavior, but direct experimental tests of the functions of species-specific details of morphology are rare ...
Historia natural y repertorio acústico del Sancuinclas (Pezopetes capitalis), ave endémica de Costa Rica y el oeste de Panamá
NATURAL HISTORY AND ACOUSTIC REPERTOIRE OF THELARGE-FOOTED FINCH (PEZOPETES CAPITALIS), AN ENDEMIC, HIGHLAND BIRD OF COSTA RICA AND WESTERN PANAMA
(2014)
El Sancuinclas es una especie endémica y un habi- tante común del sotobosque de bosques montanos y páramo en las tierras altas de Costa Rica y el oeste de Panamá. A pesar de ser una especie común, existía poca información ...
Canines as a measuring tool for leaf tent construction in Dermanura watsoni
(2013)
Many animals are capable of constructing structures to modify the environment for their own benefit. The design of these structures requires animals to perceive dimensions. However, how animals take measurements to achieve ...
Variation and possible function of egg sac coloration in spiders
(2013)
Coloration of the egg sacs of spiders varies widely to the human eye, both across and within taxonomic groups. These differences in coloration are expected with differences in the biology and ecology of different species. ...
Efecto del tamaño corporal y el cuidado parental sobre el tamaño de la camada y de los huevos en teridioides
EFFECT OF BODY SIZE AND MATERNAL CARE ON CLUTCH SIZE AND EGG SIZE IN THERIDIODS
(2015)
Los rasgos especie-específicos de historia de vida resultan de la interacción entre diferentes factores. En arañas el tamaño de camada y el tamaño de los huevos se espera que esten influenciados por el tamaño corporal de ...
Loss of cheliceral clasping in Leucauge sp. (Araneae, Tetragnathidae)
(2015)
In male spiders, genitalia, sexual behaviour and secondary sex morphology tend to diverge rapidly across species, presumably as a result of sexual selection. In the three Leucauge species for which pre- and copulatory ...
Ultrastructure of Deinopis egg sac (Araneae: Deinopidae)
(2014)
Attacks by predators and parasitoids on spider eggs are common. To counteract their negative effect, spiders have evolved a series of behaviours and features related to their egg sacs. In the genus Deinopis (Deinopidae) ...
Otro más que atraviesa el mutualismo plata - hormiga
ANOTHER ONE BREAKING THROUGH AN ANT PLANT MUTUALISM
(2018)
Las interacciones mutualistas entre hormigas y plantas son comunes y el grado de especialización varía mucho entre ellas. Algunas especies de hormigas en el género Pseudomyrmex mantienen relaciones mutualistas obligatorias ...
Characteristics of male Spot-bellied Bobwhite (Colinus leucopogon) song during territory establishment
(2012)
In song-learning birds, male song shows a large inter-individual variation that frequently plays an important role in intra- and inter-sexual selection. In other bird groups, such as Galliformes, song learning is absent, ...