jumping spider
Pheromones exert top down effects on visual recognition in the jumping spider Lyssomanes viridis
... the jumping spider Lyssomanes viridis by presenting males with animated images of conspecifics, heterospecifics and composite images that combined the facial coloration and morphology of one sex or species ...
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Argentine Ant Affects Ant Mimetic Arthropods: Does Argentine Ant Invasion Conserve Colouring Variation of Myrmecomorphic Jumping Spider?
... As for the causes of ant disappearance, it is notorious that invasion of exotic Argentine ant expels native ants [17]. Also in Japan, most of indigenous ants were driven away by Argentine ant [18] [19]. Ant is one of the ...
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Disentangling the visual cues used by a jumping spider to locate its microhabitat
... As jumping spiders have the finest visual acuity among the arthropods, it is a bit surprising that ...of jumping spider visual acuity at different distances, we have found that the shapes of leaves ...
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Cues by which Portia fimbriata, an araneophagic jumping spider, distinguishes jumping spider prey from other prey
... araneophagic jumping spider (Salticidae) that includes in its predatory strategy a tactic (cryptic stalking) enabling it to prey effectively on a wide range of salticids from other ...
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Influence of cues from the anterior medial eyes of virtual prey on Portia fimbriata, an araneophagic jumping spider
... Portia fimbriata from Queensland, Australia, is a jumping spider (Salticidae) that preys on other spiders, including other salticids. Cryptic stalking (palps retracted, walking very slowly and freezing when ...
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The discerning predator: decision rules underlying prey classification by a mosquito eating jumping spider
... Evarcha culicivora is an East African jumping spider that feeds indirectly on vertebrate blood by choosing blood-fed female Anopheles mosquitoes as prey. Previous studies have shown that this predator can ...
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Cross modal effects on learning: a seismic stimulus improves color discrimination learning in a jumping spider
... We used two visually distinct colors of construction paper, red and yellow, for the color discrimination task (BriteHue, Red and Sun Yellow, Cohoes, NY, USA). The reflectance spectra of these two colored papers are ...
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The effect of substrate on the efficacy of seismic courtship signal transmission in the jumping spider Habronattus dossenus (Araneae: Salticidae)
... (Griswold, 1987), court females using a complex multimodal display consisting of multiple visual and seismic signals (Elias et al., 2003). Previous work has shown that seismic components in courtship are crucial in mate ...
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Short Communication: The Distances at Which a Primitive Jumping Spider, Portia Fimbriata, Makes Visual Discriminations
... Portia allows particularly satisfactory assessment of the distances at which visual discriminations can be made for an unusual reason: in addition to distinguishing conspecifics from var[r] ...
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Seismic signals in a courting male jumping spider (Araneae: Salticidae)
... video recording as above (44.1·kHz audio sampling rate). All recordings were also videotaped (Navitar Zoom 7000 lens; Panasonic GP-KR222; Sony DVCAM DSR-20 digital VCR). Recordings of signals were made from each male ...
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Importance of Calcium And Magnesium Ions for Postexcitatory Hypersensitivity in the Jumping Spider (Menemerus) Eye
... 6 shows the effects of changes in external Ca2+ concentration on ERG light responses to control light C presented to the completely dark-adapted eye, and test light T presented 5 s after[r] ...
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Hypersensitivity in the anterior median eye of a jumping spider
... Upon loss of hypersensitivity, the sensitivity decrease during light adaptation is greater than for the normal eye and the small increase of sensitivity following the onset of illuminati[r] ...
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Adhesion measurements on the attachment devices of the jumping spider Evarcha arcuata
... The physical principle forming the basis for wet adhesion is surface tension of an adhesive secretion between the attachment device and substrate (Bauchhenß, 1979; Walker et al., 1985; Dixon et al., 1990; Walker, 1993). ...
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... or jumping spider, no house spider or cobweb spider or wolf spider, not even the large and hairy tarantula, resembles the three deadly ...a spider and don’t see the telltale ...
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Functional relations between locomotor performance traits in spiders and implications for evolutionary hypotheses
... Findings: We examine the relationship between maximum climbing and running performance in males of three spider species. Maximum running and climbing speeds were positively related in two orb-web spiders with high ...
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The Adventure of Physics - Vol. III: Light, Charges, and Brains
... In particular, the jumping spider genus Portia (Salticidae) has two especially large eyes, made to see distant objects, which have two lenses behind each other; the second lens and the r[r] ...
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Spectral Sensitivities of the Anterior Median Eyes of the Orb Web Spiders, Argiope Bruennichii and A Amoena
... The recovery process of the eye to a bright test light following illumination was very similar to the dark adaptation process of the anterior median eye of the jumping spider which is kn[r] ...
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Colouration in crab spiders: substrate choice and prey attraction
... However, signallers can deceive, gaining a benefit at the cost of the receivers (Johnson, 2000; Heiling et al., 2003). In predator-prey systems, predators often exploit the sensory biases of potential prey to enhance ...
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Effect of horse sex status on British Eventing competition performance: an observational study between 1998 and 2016
... At BE90 mares and geldings both incurred fewer penalties than stallions in SJT (table 2). This was unexpected as it is the only area in which mares have performed significantly better than either stallions or geldings, ...
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The Impact of Therapeutic Recreational Gymnastic Exercise on Basic Motor Skills of Hearing-Impaired Children Aged Between 6 and 9 Years
... running, jumping, gallop jumping, standing long jump, dribbling, throwing tennis ball, catching the thrown ball, kicking the thrown ball, kicking the still ball) were applied to all the students in the ...
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