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Description of Caurinus tlagu, new species, from Prince of Wales Island, Alaska (Mecoptera, Boreidae, Caurininae).

Sikes DS, Stockbridge J - Zookeys (2013)

Bottom Line: A new species of the cryptic, minute, wingless, and enigmatic taxon Caurinus, and the second for the subfamily Caurininae,is described from Prince of Wales Island in the Alexander Archipelago, Alaska.It is distinguished from its only congener, Caurinus dectes Russell, 1979b, which occurs 1,059 km southeast in Oregon and Washington, based on external morphology and sequences of the mitochondrial gene cytochrome oxidase II.These two species are probably evolutionary relicts - the only known members of a clade dating to the Late Jurassic or older.

View Article: PubMed Central - PubMed

Affiliation: University of Alaska Museum, 907 Yukon Drive, Fairbanks, AK 99775-6960, USA.

ABSTRACT
A new species of the cryptic, minute, wingless, and enigmatic taxon Caurinus, and the second for the subfamily Caurininae,is described from Prince of Wales Island in the Alexander Archipelago, Alaska. It is distinguished from its only congener, Caurinus dectes Russell, 1979b, which occurs 1,059 km southeast in Oregon and Washington, based on external morphology and sequences of the mitochondrial gene cytochrome oxidase II. These two species are probably evolutionary relicts - the only known members of a clade dating to the Late Jurassic or older.

No MeSH data available.


Habitats of Caurinus tlaguA Habtiat of type locality, thinned secondary growth with 18 ft. spacing between trees, 55.88433, -132.89734B example of old growth habitat in which specimen UAM:Ento:204239 was found, 55.88602,-132.8607C example of clearcut, a habitat type in which seven specimens were found, 55.872, -133.06523D example of treeless, alpine heath – tundra in which two specimens were found, 55.58818, -132.88881.
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Figure 2: Habitats of Caurinus tlaguA Habtiat of type locality, thinned secondary growth with 18 ft. spacing between trees, 55.88433, -132.89734B example of old growth habitat in which specimen UAM:Ento:204239 was found, 55.88602,-132.8607C example of clearcut, a habitat type in which seven specimens were found, 55.872, -133.06523D example of treeless, alpine heath – tundra in which two specimens were found, 55.58818, -132.88881.

Mentions: The majority of specimens (35/37) were collected in perhumid rainforest dominated by Sitka spruce (Picea sitchensis), western hemlock (Tsuga heterophylla), lodgepole pine (Pinus contorta var. contorta), Alaska yellow cedar (Chamaecyparis nootkatensis), red cedar (Thuja plicata), and red alder (Alnus rubra) (Fig. 2). Of 24 sites sampled in the Tongass National Forest project, Caurinus was found in 14 sites. Fifteen specimens were found in six of six sampled old growth sites, eleven in three of six sampled thinned secondary growth sites, seven in four of six sampled clear cuts, and one in one of six sampled unthinned secondary growth sites. One additional specimen was found in an ecotone next to a clear cut that was not part of the 24 structured sampling sites. The hypothesis of Caurinus being equally trappable in all four habitat types: old growth, thinned secondary growth, unthinned secondary growth, and clear cuts, (ignoring the ecotone), is rejected (Chi2 = 12.59, df=3, P=0.0056). These animals are less trappable in unthinned secondary growth sites than expected under the , and more trappable in old growth and thinned secondary growth sites than expected under the .


Description of Caurinus tlagu, new species, from Prince of Wales Island, Alaska (Mecoptera, Boreidae, Caurininae).

Sikes DS, Stockbridge J - Zookeys (2013)

Habitats of Caurinus tlaguA Habtiat of type locality, thinned secondary growth with 18 ft. spacing between trees, 55.88433, -132.89734B example of old growth habitat in which specimen UAM:Ento:204239 was found, 55.88602,-132.8607C example of clearcut, a habitat type in which seven specimens were found, 55.872, -133.06523D example of treeless, alpine heath – tundra in which two specimens were found, 55.58818, -132.88881.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3713333&req=5

Figure 2: Habitats of Caurinus tlaguA Habtiat of type locality, thinned secondary growth with 18 ft. spacing between trees, 55.88433, -132.89734B example of old growth habitat in which specimen UAM:Ento:204239 was found, 55.88602,-132.8607C example of clearcut, a habitat type in which seven specimens were found, 55.872, -133.06523D example of treeless, alpine heath – tundra in which two specimens were found, 55.58818, -132.88881.
Mentions: The majority of specimens (35/37) were collected in perhumid rainforest dominated by Sitka spruce (Picea sitchensis), western hemlock (Tsuga heterophylla), lodgepole pine (Pinus contorta var. contorta), Alaska yellow cedar (Chamaecyparis nootkatensis), red cedar (Thuja plicata), and red alder (Alnus rubra) (Fig. 2). Of 24 sites sampled in the Tongass National Forest project, Caurinus was found in 14 sites. Fifteen specimens were found in six of six sampled old growth sites, eleven in three of six sampled thinned secondary growth sites, seven in four of six sampled clear cuts, and one in one of six sampled unthinned secondary growth sites. One additional specimen was found in an ecotone next to a clear cut that was not part of the 24 structured sampling sites. The hypothesis of Caurinus being equally trappable in all four habitat types: old growth, thinned secondary growth, unthinned secondary growth, and clear cuts, (ignoring the ecotone), is rejected (Chi2 = 12.59, df=3, P=0.0056). These animals are less trappable in unthinned secondary growth sites than expected under the , and more trappable in old growth and thinned secondary growth sites than expected under the .

Bottom Line: A new species of the cryptic, minute, wingless, and enigmatic taxon Caurinus, and the second for the subfamily Caurininae,is described from Prince of Wales Island in the Alexander Archipelago, Alaska.It is distinguished from its only congener, Caurinus dectes Russell, 1979b, which occurs 1,059 km southeast in Oregon and Washington, based on external morphology and sequences of the mitochondrial gene cytochrome oxidase II.These two species are probably evolutionary relicts - the only known members of a clade dating to the Late Jurassic or older.

View Article: PubMed Central - PubMed

Affiliation: University of Alaska Museum, 907 Yukon Drive, Fairbanks, AK 99775-6960, USA.

ABSTRACT
A new species of the cryptic, minute, wingless, and enigmatic taxon Caurinus, and the second for the subfamily Caurininae,is described from Prince of Wales Island in the Alexander Archipelago, Alaska. It is distinguished from its only congener, Caurinus dectes Russell, 1979b, which occurs 1,059 km southeast in Oregon and Washington, based on external morphology and sequences of the mitochondrial gene cytochrome oxidase II. These two species are probably evolutionary relicts - the only known members of a clade dating to the Late Jurassic or older.

No MeSH data available.