Superhydrophobicity and size reduction enabled Halobates (Insecta: Heteroptera, Gerridae) to colonize the open ocean.

Despite the remarkable evolutionary success of insects at colonizing every conceivable terrestrial and aquatic habitat, only five Halobates (Heteroptera: Gerridae) species (~0.0001% of all known insect species) have succeeded at colonizing the open ocean – the largest biome on Earth.

This remarkable evolutionary achievement likely required unique adaptations for them to survive and thrive in the challenging oceanic environment. For the first time, we explore the morphology and behavior of an open-ocean Halobates germanus and a related coastal species H. hayanus to understand mechanisms of these adaptations. We provide direct experimental evidence based on high-speed videos which reveal that Halobates exploit their specialized and self-groomed body hair to achieve extreme water repellence, which facilitates rapid skating and plastron respiration under water.

Moreover, the grooming behavior and presence of cuticular wax aids in the maintenance of superhydrophobicity. Further, reductions of their body mass and size enable them to achieve impressive accelerations (~400 ms-2) and reaction times (~12 ms) to escape approaching predators or environmental threats and are crucial to their survival under harsh marine conditions. These findings might also inspire rational strategies for developing liquid-repellent surfaces for drag reduction, water desalination, and preventing bio-fouling.

Habitat Preferences and Trophic Position of Brachydiplax chalybea flavovittata Ris, 1911 (Insecta: Odonata) Larvae in Youngsan River Wetlands of South Korea.

In freshwater ecosystems, habitat heterogeneity supports high invertebrate density and diversity, and it contributes to the introduction and settlement of non-native species. In the present study, we identified the habitat preferences and trophic level of Brachydiplax chalybea flavovittata larvae, which were distributed in four of the 17 wetlands we examined in the Yeongsan River basin, South Korea.

Larval density varied across four microhabitat types: open water area, and microhabitats dominated by Myriophyllum aquaticumPaspalum distichum, and Zizania latifolia.

ALS antibody

70R-49900 100 ul
EUR 244.00
Description: Purified Polyclonal ALS antibody

ALS Antibody

abx431353-200ul 200 ul
EUR 286.00
  • Shipped within 1-3 working days.

ALS-8112

HY-12983 10mM/1mL
EUR 717.00

ALS Blocking Peptide

20-abx062775
  • EUR 272.00
  • EUR 411.00
  • 1 mg
  • 5 mg
  • Shipped within 5-10 working days.

ALS Polyclonal Antibody

ABP54856-003ml 0.03ml
EUR 158.00
  • Immunogen information: Synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360
  • Applications tips:
Description: A polyclonal antibody for detection of ALS from Human. This ALS antibody is for WB, ELISA. It is affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360

ALS Polyclonal Antibody

ABP54856-01ml 0.1ml
EUR 289.00
  • Immunogen information: Synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360
  • Applications tips:
Description: A polyclonal antibody for detection of ALS from Human. This ALS antibody is for WB, ELISA. It is affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360

ALS Polyclonal Antibody

ABP54856-02ml 0.2ml
EUR 414.00
  • Immunogen information: Synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360
  • Applications tips:
Description: A polyclonal antibody for detection of ALS from Human. This ALS antibody is for WB, ELISA. It is affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogenand is unconjugated. The antibody is produced in rabbit by using as an immunogen synthesized peptide derived from the Internal region of human ALS at AA rangle: 280-360

ALS Polyclonal Antibody

ES5855-100ul 100ul
EUR 279.00
Description: A Rabbit Polyclonal antibody against ALS from Human. This antibody is tested and validated for WB, ELISA, WB, ELISA

ALS Polyclonal Antibody

ES5855-50ul 50ul
EUR 207.00
Description: A Rabbit Polyclonal antibody against ALS from Human. This antibody is tested and validated for WB, ELISA, WB, ELISA

Polyclonal ALS Antibody

APR05589G 0.1ml
EUR 484.00
Description: A polyclonal antibody raised in Rabbit that recognizes and binds to Human ALS . This antibody is tested and proven to work in the following applications:

Anti-ALS antibody

STJ71909 100 µg
EUR 260.00

Anti-ALS antibody

STJ91566 200 µl
EUR 197.00
Description: Rabbit polyclonal to ALS.

Polyclonal ALS Antibody (C-Term)

APG00593G 0.1mg
EUR 484.00
Description: A polyclonal antibody raised in Goat that recognizes and binds to Human ALS (C-Term). This antibody is tested and proven to work in the following applications:

Arabidopsis thaliana Acetolactate synthase, chloroplastic (ALS)

1-CSB-YP321540DOA
  • EUR 586.00
  • EUR 299.00
  • EUR 2172.00
  • EUR 900.00
  • EUR 1442.00
  • EUR 382.00
  • 100ug
  • 10ug
  • 1MG
  • 200ug
  • 500ug
  • 50ug
  • MW: 64.4 kDa
  • Buffer composition: Tris-based buffer with 50% glycerol.
Description: Recombinant Arabidopsis thaliana Acetolactate synthase, chloroplastic(ALS),partial expressed in Yeast

Microhabitats dominated by M. aquaticum had the highest larval density, followed by those dominated by P. distichum. The larvae were more prevalent in silt sediments than in plant debris or sand. Stable isotope analysis showed that B. chalybea flavovittata is likely to consume, as a food source, other species of Odonata larvae. We conclude that successful settlement of B. chalybea flavovittata can be attributed to their habitat preferences.

As temperature increases due to climate change, the likelihood of B. chalybea flavovittata spreading throughout South Korea increases. We, therefore, recommend continued monitoring of the spread and ecological impacts of B. chalybea flavovittata.

Scroll to Top