Results 1 to 10 of about 495 (166)

Dispersal and Migration Patterns of Freshwater Semiaquatic Bugs [PDF]

open access: yesInsects, 2021
Semiaquatic bugs (Hemiptera: Heteroptera: Gerromorpha) are mostly wing-polymorphic species with flight dispersal as an important life history trait, but the specific flight ability and dispersal pattern remain unexplored in most species.
Tomáš Ditrich
doaj   +2 more sources

Distinct kinematics and micromorphology for symmetrical rowing and sliding on water in ripple bugs and water striders [PDF]

open access: yesScientific Reports
Semiaquatic bugs evolved two different propulsion mechanisms for their symmetrical rowing: a drag-based propulsion in Veliidae and a surface-tension-based propulsion in Gerridae.
Sang Yun Bang   +6 more
doaj   +2 more sources

Diapause development in Aquarius paludum (Heteroptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2004
Diapause fixation and development were studied in females of a Czech population of Aquarius paludum by monitoring changes in oxygen uptake, weight and reproduction potential in field adults between August and February.
Tetsuo HARADA   +3 more
exaly   +3 more sources

Geographical distribution of three oceanic Halobates spp. and an account of the behaviour of H. sericeus (Heteroptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2005
Halobates spp. are the only insects inhabiting the open sea. One sea skater species, Halobates sericeus, was collected at 18 locations in the East China Sea area (27°10´N- 33°24´N, 124°57´E-129°30´E), and H. micans and/or H.
Tetsuo HARADA
exaly   +3 more sources

Effects of low temperature on the condition of flight muscles and flight propensity in a water strider, Aquarius paludum (Heteroptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2003
Effects of chilling on dispersal characteristics of adults of the water strider, Aquarius paludum were studied in the laboratory. The condition of flight muscles was monitored during overwintering under natural conditions in Kochi (33°N), Japan.
Tetsuo HARADA   +2 more
exaly   +3 more sources

Telmatometropsis fredyi gen. nov., sp. nov.: a new water strider from the Colombian Pacific region (Insecta, Hemiptera, Gerridae) [PDF]

open access: yesZooKeys, 2021
A new genus of Gerridae (Insecta, Hemiptera, Heteroptera) in the subfamily Trepobatinae, Telmatometropsis gen. nov., with a single included species, T. fredyi sp. nov., is described from the Colombian Pacific region. Representatives of the new genus were
Silvia P. Mondragón-F.   +2 more
doaj   +4 more sources

Responses of life-history traits of brackish- and freshwater populations of the water strider to NaCl Aquarius paludum (Hemiptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2009
The water strider Aquarius paludum inhabits the surfaces of a wide variety of freshwater habitats both temporary and permanent. It can also live on the surface brackish-water around river mouths.
Manabu KISHI   +2 more
exaly   +3 more sources

Feeding conditions modify the photoperiodically induced dispersal of the water strider, Aquarius paludum (Heteroptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2007
Overwintering adults of the water strider, Aquarius paludum were collected from the field in fall and kept under short days (12L : 12D) at 20°C for a week.
Tetsuo HARADA, Tatsuya NISHIMOTO
exaly   +3 more sources

Dispersal and reproductive responses of the water strider, Aquarius paludum (Hemiptera: Gerridae), to changing NaCl concentrations

open access: yesEuropean Journal of Entomology, 2007
The responses of females of the water strider, Aquarius paludum, to changes in NaCl concentration were examined in the laboratory. The insects were sampled seasonally in 2002 and 2003 at two reservoirs in Kochi, Japan, connected by a waterway, one at the
Manabu KISHI   +2 more
exaly   +3 more sources

Influence of male density on guarding behaviour in the water strider Aquarius paludum (Heteroptera: Gerridae)

open access: yesEuropean Journal of Entomology, 2011
In species with last sperm precedence, post-mating guarding behaviour by males is effective for avoiding sperm displacement by additional males. However, for males to guard their mates under all circumstances may be undesirable, particularly when the ...
Kenji Fujisaki
exaly   +3 more sources

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