Jumping spiders
Bimodal breathing in jumping spiders: morphometric partitioning of the lungs and tracheae in Salticus scenicus (Arachnida, Araneae, Salticidae)
... In jumping spiders, both the book lungs and the tracheal system are well-developed. The tracheal system consists of four thick primary tracheae that branch into small secondary tracheae, some of them ending ...
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Contribution to the knowledge of jumping spiders (Araneae: Salticidae) from vicinity of Jagodina, Central Serbia
... the jumping spiders species were collected in wide vicinity of Jagodina (the central part of Serbia) (UTM EP16,17,26,27; 21°11‘-21°21‘, 43°56‘-44°03‘; altitude range ...
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Spectral transmission of the principal eye corneas of jumping spiders: implications for ultraviolet vision
... Ultraviolet (UV) vision plays an important role in interspecific and intraspecific communication in many animals. However, UV vision and its adaptive significance have been investigated in only approximately 1% of more ...
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Dim light vision in jumping spiders (Araneae, Salticidae): identification of prey and rivals
... systems, jumping spiders (Salticidae) are of particular interest because it is among salticids that we find both some of the most intricate vision-based predatory strategies (Nelson and Jackson, 2011) and ...
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The role of the anterior lateral eyes in the vision based behaviour of jumping spiders
... and spiders (Duelli, 1978; Land, ...that jumping spiders may exhibit differences in their perceptual ability based on ...male jumping spiders are less prone to complete behavioural ...
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Movements of the Retinae of Jumping Spiders (Salticidae: Dendryphantinae) in Response to Visual Stimuli
... Thus the division of labour in the visual system of jumping spiders is similar to that in man, with the largest area of retina the side eyes and outer parts of the anteromedian retinae d[r] ...
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Attentional processes in mosquito eating jumping spiders: search imagesand cross modality priming
... Because jumping spiders are such visual animals, their courtship repertoires tend to involve a lot of movement to attract, and sustain, the attention of a potential mate (Jackson & Pollard, ...1997). ...
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Structure of the Retinae of the Principal Eyes of Jumping Spiders (Salticidae: Dendryphantinae) in Relation to Visual Optics
... To determine whether either of these hypotheses is compatible with the structure of the retina it will be necessary to i measure the focal lengths of the eyes; ii determine where on the [r] ...
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Stepping Movements Made by Jumping Spiders During Turns Mediated by the Lateral Eyes
... Because the stepping pattern is not perfectly regular, the beginnings of steps made by different legs are very nearly randomly distributed with respect to the angle turned, as opposed to[r] ...
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Caffeine Affects the Vigilance Decrement of Trite planiceps Jumping Spiders (Salticidae)
... in spiders are analogous to their effects in humans, so we can assume that caffeine has a similar effect on ...the spiders were more alert so ‘picked up’ on more stimuli, or maybe they had more energy and ...
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Orientation by Jumping Spiders in the Absence of Visual Feedback
... The spider's response to an adequate stimulus may be: i to make a 'complete' turn resulting in fixation by the antero-median eyes; ii to make a ' partial' turn of 10-200, whose magnitude[r] ...
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Biological relevance affects object recognition in jumping spiders
... were significant differences in the attrition rates between the different choice tests 2 X 5 test,.. of two abstract images - being significantly higher than in any other experiment Fish[r] ...
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The Toxopidae, a new family of spiders
... Colour-.-Carapace light brown with black lateral margins and a wijIe dark brown band on each side, extending from PLE to the posterior margin.. Legs, pal pi, chelicerae, sternum and maxi[r] ...
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Edge effect on weevils and spiders
... At the studied spatial scale, dispersal between adjacent habitats may also influence species richness. Heublein (1983) reported that by unfavourable environmental con- ditions (microclimate, food conditions, etc.) ...
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The Evaporation of Water from Spiders
... If the assumption is made that a higher critical temperature denotes a lower rate of evaporation within the biological range as it does with insects and ticks, then as regards the spider[r] ...
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Stepping Patterns in Tarantula Spiders
... The normal phase relationships between the fourth and second pairs of legs are approximately reversed, but the range of phase variation increases considerably, and the bind legs work fas[r] ...
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Polarized light detection in spiders
... hunting spiders, the secondary eyes of many other species are ideally suited for the detection of polarized ...addition, spiders of many families have polarizing tapeta that may further facilitate the ...
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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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Biomechanics of jumping in the flea
... For almost one hundred years the mechanisms of how fleas jump has continued to be a challenging biological problem (Russel, 1913; Snodgrass, 1946; Rothschild, 1965). The jumps were known to be quick and energetic, so ...
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Buckets and Jumping Pets »
... From this initial configuration our problem is to transfer all toads to where the frogs are and vice versa by means of two kinds of movements performed sequentially by a single pet at a [r] ...
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