Results 231 to 240 of about 269,377 (249)

Electrical parameter computation of various photovoltaic models using an enhanced jumping spider optimization with chaotic drifts

Journal of Computational Electronics, 2022
Lakshmanan Muthuramalingam, K. Chandrasekaran, Felix Joseph Xavier   +2 more
semanticscholar   +1 more source

Rearing environment affects behaviour of jumping spiders

Animal Behaviour, 2000
We tested the effect of rearing conditions on the behaviour of jumping spiders, Phidippus audax. Spiders were assigned randomly to either small or large cages that either were empty or contained a painted dowel. Laboratory-reared spiders were raised from second instar to adult in these environments.
Jeannine Pollack Carducci, Elizabeth M. Jakob   +1 more
openaire   +2 more sources

Spectral sensitivity in jumping spiders (Araneae, Salticidae)

Journal of Comparative Physiology A, 1989
1. We report here a psychophysical technique for studying the spectral sensitivity of jumping spiders (family Salticidae), based on a newly discovered oculomotor reflex. 2. Our results, obtained from Maevia inclemens (Salticidae), are compatible with electrophysiological findings of retinal cells maximally sensitive in the green and ultraviolet regions
Graeme Wilson, Alan G. Peaslee
openaire   +3 more sources

Further Additions to the Jumping Spider Fauna of South Africa (Araneae: Salticidae)

The Annals of zoology, 2018
. Examination of museum collections and of recently collected materials from South Africa lead to the discovery of the following eight new jumping spider species that are described here: Evarcha amanzi sp. nov. (♂), E. villosa sp.
W. Wesołowska, C. Haddad
semanticscholar   +1 more source

Crystal structure of Jumping Spider Rhodopsin-1 bound to 9-cis retinal

, 2019
Light-sensitive G protein-coupled receptors (GPCRs)-rhodopsins-absorb photons to isomerize their covalently bound retinal, triggering conformational changes that result in downstream signaling cascades.
N. Varma, Eshita Mutt, Jonas Mühle, V. Panneels, A. Terakita, X. Deupí, P. Nogly, G. Schertler, E. Lesca   +8 more
semanticscholar   +1 more source

Photoreceptor projection from a four‐tiered retina to four distinct regions of the first optic ganglion in a jumping spider

The Journal of comparative neurology, 2019
Jumping spiders have four pairs of eyes (ocelli) of which only the principal eyes (PEs) are used to detect features of objects. Photoreceptors in the retina of the PEs form four layers (PL1–4) and terminate in the first optic ganglion (FOG).
T. Nagata, K. Arikawa, M. Kinoshita
semanticscholar   +1 more source

Orientation by Jumping Spiders in the Absence of Visual Feedback

Journal of Experimental Biology, 1971
ABSTRACT Jumping spiders turn to face moving objects. These turns are mediated by the lateral eyes. They can be accomplished accurately whether or not the spider sees the relative movement of the stimulus across the retinae which would normally result from such a turn.
openaire   +3 more sources

The effect of visual priming in jumping spiders.

2018
Priming of an animal’s sensory system can influence behaviour. Once an animal has been primed with a stimulus (e.g., the smell of a specific prey), it is then able to find the source of the stimulus (e.g., visually locate the prey) more easily than before.
openaire   +3 more sources

Spatial acuity-sensitivity trade-off in the principal eyes of a jumping spider: possible adaptations to a ‘blended’ lifestyle

Journal of Comparative Physiology, 2021
Ana M. Cerveira, X. Nelson, R. Jackson
semanticscholar   +1 more source

An investigation of response decrement in jumping spiders.

2017
Paying attention to a stimulus is costly in terms of cognitive resources. Given the high number of stimuli (and the low salience of many of them), animals filter out a large amount of irrelevant information, but exactly how this is done is not entirely understood.
openaire   +3 more sources