From bouncy legs to poisoned arrows: elastic movements in invertebrates.

ELASTIC DIURNAL MOVEMENTS OF MASSES OF TERTIARY SALT EXTRUDED IN NORTH CENTRAL IRAN

Repetitive Arm Movements During Sleep: A Polysomnographic Assessment

Sleep-related movement disorders should be differentiated from parasomnias, sleep-associated behavioral disorders, and epilepsy. Polysomnography (PSG) is the gold standard in evaluating such disorders. Periodic leg movement disorder during sleep (PLMS), hypnic jerks, bruxism, rhythmic movement disorder, restless legs syndrome, and nocturnal leg cramps have broadly been discu...

The effect of Rainbow trout farms effluents on benthic macro-invertebrates of Marber River in Semirom

The effect of Rainbow trout farms effluents on benthic macro-invertebrates of Marber River in Semirom city was investigated in spring and summer of 2013. Sampling from benthic macro-invertebrates was done monthly using Surber sampler (mouth area of 30.5 * 30.5 cm with a 500 mesh net) at entrance, discharge and far from three fish farms. In addition to measuring physical and chemical parameters ...

The Swimming of Nymphon Gracile (pycnogonida)

Most arthropods move by means of metachronal waves of activity passing over the paired appendages, and the resulting gaits have been studied extensively, with regard both to their locomotory effectiveness (Manton, 1953) and to co-ordination (Beth6, 1930; von Hoist, 1935). Most attention has been focused on terrestrial or benthic arthropods and the mechanism of co-ordination of insect walking es...

Sexually dimorphic tegumental gland openings in Laniatores (Arachnida, Opiliones), with new data on 23 species.

Sexually dimorphic glands often release sexual pheromones both in vertebrates and invertebrates. Species of Laniatores (Arachnida, Opiliones) seem to depend on chemical communication but few studies have addressed this topic. In this study, we review the literature for the Phalangida and present new data for 23 species of Laniatores. In 16 taxa, we found previously undescribed sexually dimorphi...