halys individuals exhibit a positive phototactic
response, orient themselves towards visual light sources, and show a distinct preference for white light over other colors in a laboratory setting (Leskey et al.
Consistent with this finding, adult Limulus exhibit a positive phototactic
response when their MEs are illuminated with UV light but no response when their MEs are illuminated with visible light.
Environmental and physiological factors influencing phototactic
flight of Bemisia tabaci.
If pelagic larvae are positively phototactic
and become negatively phototactic
during the settlement stage it is likely that light conditions would have had an influence on [?
As examples, paved surfaces (concrete, asphalt) directly remove habitat needed by ground-nesting bees and other insects; asphalt roads can induce misorientation of aquatic insects to polarised light, leading to futile oviposition on road surfaces; traffic can cause direct mortality; roadways may act as a barrier, isolating insect populations; light intensity in streets and buildings can attract phototactic
insects from more natural areas and render them vulnerable to vertebrate predators; and 'heat islands' may affect development rates and tolerances of resident and adventive species.
responses to ultraviolet and white light in various species of Collembola, including the eyeless species, Folsomia Candida.
responses include movement towards or away from a light source.
Many aquatic insects are negatively phototactic
and actively avoid light (Ward, 1992).
formosa) was positively phototactic
in the absence of any chemical influence of its host mussel, Anodonta (now Pyganodon) cataracta, but exhibited negative phototaxis when tested in water containing extract of host gill tissue or in water from the mantle cavity of the host.
The larvae are negatively phototactic
and are always found hidden in food.
1997) Phosphoregulation of an inner dynein arm complex in Chlamydomonas reinhardtii is altered in phototactic
Enhancement of the phototactic
reaction in Daphnia hyalina by a chemical mediated by juvenile perch (Perca fluviatilis).