Genetically separate populations of the ocean-skater Halobates sericeus (Heteroptera: Gerridae) have been maintained since the late Pleistocene
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Atlantid Heteropods as Living Substrata for Eggs of Halobates sericeus (Heteroptera: Gerridae)
Atlantid heteropods are collected occasionally in Hawaiian waters with yellow, narrowly elliptical objects attached to their shells. Examination of 139 of these objects from 72 atlantids showed that they consisted of an outer, clear capsule whose contents were usually yellow, although 16 were empty and four contained brown insects at an advanced stage of development. The latter were identified ...
متن کاملChemical composition and behavioral responses of the marine insect Halobates hawaiiensis (Heteroptera: Gerridae).
Halobates is the only insect genus with representatives in the open ocean. How adults find one another at sea has long been an intriguing issue. Since chemical communications have been demonstrated in a related marine veliid Trochopus, and laboratory bioassays indicated behavioral differences between males and females when insect extracts were presented, we carried out similar studies on Haloba...
متن کاملOccurrence, distribution and abundance of Halobates micans Eschscholtz, 1822 (Heteroptera, Gerridae) along the southeastern Brazilian coast.
Data collected during an oceanographic cruise along the southeastern Brazilian coast from Cape Frio (22 degrees 58' S) and Paraná (27 degrees 50' S) in March 1982 showed that the marine insect Halobates micans occurred along the Southeastern Brazilian Bight, but in lower abundance in low-temperature areas due to the intrusion and upwelling of South Atlantic Central Water, and in low-salinity ar...
متن کاملCould the Late Permian deep ocean have been anoxic
Models ofocean circulation and biogeochemical cy les are used to speculate bout possible m chanisms of deep-sea anoxia across the Pertoo-Triassic boundary. Two modes of likely Late Permian ocean thermohaline circulation are identified: a vigorous "therm',d mode" driven by cooling in southern polar latitudes and aweaker "haline mode" driven by evaporation fromthe subtropics. We find that the the...
متن کاملA molecular phylogeny of the pan-tropical pond skater genus Limnogonus Stål 1868 (Hemiptera-Heteroptera: Gerromorpha-Gerridae).
We investigated phylogenetic relationships among pond skaters (Heteroptera: Gerridae) of the genus Limnogonus Stål 1868 by performing separate and combined parsimony analyses of DNA sequences from three mitochondrial (COI+II, 16SrRNA) and one nuclear (28SrRNA) gene(s). The taxon sample represented almost two thirds of the known diversity, and with most taxa represented by two or more individual...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 2012
ISSN: 0024-4066
DOI: 10.1111/j.1095-8312.2011.01836.x