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5 results for “Caconemobius”
Data for: Lava crickets (Caconemobius spp.) on Hawai´i Island: first colonizers or persisters in extreme habitats?
<p>1. Primary succession after a volcanic eruption is a major ecological process, but relatively little is known about insects that colonize barren lava before plants become established.</p> <p>2. On Hawai´i Island, the endemic cricket, <i>Caconemobius fori </i>Gurney & Rentz, 1978, is known as the first multicellular life form to colonize lava after an eruption from Kīlauea Volcano. In the Kona region, a congener, <i>Caconemobius anahulu </i>Otte,1994 inhabits unvegetated lava flows from Hualālai Volcano, but little has been documented about its distribution.</p> <p>3. Our aim was to characterize the presence/absence of <i>Caconemobius </i>spp<i>.</i> across lava flows that are largely unvegetated, but differ in age since eruption and connectivity to older flows. We used baited live traps to survey 9 month–50 year-old Kīlauea lava flows for <i>C. fori</i>, and ~220 year-old Hualālai lava flows for <i>C. anahulu</i>.</p> <p>4. We found no evidence that <i>C. fori </i>has colonized the Kīlauea flows from the 2018 eruption. However, we did discover that <i>C. fori </i>was persistent and widespread on Kīlauea lava up to 50 years old within Hawai´i Volcanos National Park. We also captured <i>C. anahulu </i>across much of the Hualālai lava flows we surveyed in Kona.</p> <p>5. We demonstrated that <i>C. fori </i>do not always arrive on new lava within months after an eruption, in contrast to previous reports, and that both <i>C. fori</i> and <i>C. anahulu</i> can remain on lava longer than previously appreciated. Vegetation successional state may be more important than true age for the persistence of these endemic crickets.</p>
FIGURE 1 in First record of cricket genus Caconemobius (Grylloidea: Nemobiinae) from China with description of a new species
FIGURE 1. Distribution of Asian Caconemobius species, Caconemobius sazanami (Furukawa, 1970) and Caconemobius takarai (Oshiro, 1990b) distributed in both Japan and Korea; Caconemobius daitoensis (Oshiro, 1986), Caconemobius akusekiensis (Oshiro, 1990a) from Japan; Caconemobius dibrachiatus Ma and Zhang sp. nov. from China.
FIGURE 2. Living Caconemobius dibrachiatus. A in First record of cricket genus Caconemobius (Grylloidea: Nemobiinae) from China with description of a new species
FIGURE 2. Living Caconemobius dibrachiatus. A. living male; B. living female; C. coastal habitat; D. several individuals living together.
FIGURE 3 in First record of cricket genus Caconemobius (Grylloidea: Nemobiinae) from China with description of a new species
FIGURE 3. Caconemobius dibrachiatus sp. nov. (A–I). Body (A, B), A male, B female; Genitalia (C–F), C dorsal viewed, D lateral viewed, E ventral viewed, F caudal viewed; Ovipositor (G); Maxillary palpi (H); Cercus (I).
Data for: Lava crickets (Caconemobius spp.) on Hawai´i Island: first colonizers or persisters in extreme habitats?
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