Oceanic diffusion and the pelagic insects Halobates spp. (Gerridae: Hemiptera)

Ikawa, Terumi; Ōkubo, Akira; Okabe, Hidehiko; Cheng, Lanna

doi:10.1007/s002270050310

Cited by 16 publications

(20 citation statements)

References 7 publications

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“…Then, our calculations show that oceanic diffusion could increase the radius of a Halobates patch as much as 3500 km in 120 days (Ikawa et al 1998). This distance is equivalent to about one-fourth of the maximum distribution range of Halobates micans in the Pacific Ocean.…”

Section: Oceanic Diffusion Operating On a Patch Of Ocean Skatersmentioning

confidence: 78%

“…Hitherto, the only theoretical study on the influence of any physical factor on Halobates was that by Ikawa et al (1998). They considered oceanic diffusion as an integrated effect of all physical forces.…”

Section: Co-occurrence and Spatio-temporal Variationsmentioning

confidence: 99%

“…horizontal variance versus diffusion time and the diffusivity versus the scale of diffusion. This is formalized as (Ikawa et al 1998) …”

Section: Oceanic Diffusion Operating On a Patch Of Ocean Skatersmentioning

confidence: 99%

“…Ignoring these aggregative factors, conservative estimates of mutual encounter rates can be obtained by two different ways, i.e. by active random movements or by passive oceanic diffusion (Ikawa et al 1998).…”

Section: Mutual Encounter Due To Random Movements and Oceanic Diffusionmentioning

confidence: 99%

“…L or R. Thus, instead of K, we use a diffusivity K a from equation (2). Then, expected growth rate is given by (Ikawa et al 1998),…”

Section: Adaptive Significance Of Distribution Rangementioning

confidence: 99%

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Skaters of the seas – comparative ecology of nearshore and pelagicHalobatesspecies (Hemiptera: Gerridae), with special reference to Japanese species

Ikawa

Okabe

Cheng

2012

Marine Biology Research

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The insects overwhelm all other organisms of the world in species numbers and diversity. However, there are relatively few insects that inhabit the sea. Most of them are confined to the intertidal zone, with only five species of sea skaters, genus Halobates, having been successful in colonizing the open ocean. We discuss the ecology of both coastal and pelagic Halobates and the closely related genus Asclepios, focusing on their distribution ranges and adaptive strategies to marine environments accompanied by brief discussions of their biology. Updated information on the known localities for three species of Asclepios and some 40 coastal species of Halobates are presented. Many species live in vulnerable coastal habitats exposed to environmental pollution and coastal development. As a case study we trace the historical changes in populations of three Japanese sea skaters, Asclepios shiranui, Halobates matsumurai and H. japonicus, all designated as endangered species. For oceanic Halobates, we present an updated distribution map along with global current systems and sea-surface temperatures, examine interactions between distribution ranges and physical factors at the airÁsea interface and discuss spatio-temporal variations in populations of each species. Finally, we infer the life history strategy of oceanic Halobates through theoretical considerations.

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Section: Oceanic Diffusion Operating On a Patch Of Ocean Skatersmentioning

confidence: 78%

Section: Co-occurrence and Spatio-temporal Variationsmentioning

confidence: 99%

“…horizontal variance versus diffusion time and the diffusivity versus the scale of diffusion. This is formalized as (Ikawa et al 1998) …”

Section: Oceanic Diffusion Operating On a Patch Of Ocean Skatersmentioning

confidence: 99%

Section: Mutual Encounter Due To Random Movements and Oceanic Diffusionmentioning

confidence: 99%

“…L or R. Thus, instead of K, we use a diffusivity K a from equation (2). Then, expected growth rate is given by (Ikawa et al 1998),…”

Section: Adaptive Significance Of Distribution Rangementioning