Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Jon K. Gelhaus"'
Autor:
William G. Eberhard, Jon K. Gelhaus
Publikováno v:
Insects, Vol 15, Iss 9, p 680 (2024)
Male genitalia have been hypothesized to function as courtship devices during copulation, but it is difficult to use behavioral observations to test this hypothesis because male genitalia are usually hidden inside the female during copulation. In tip
Externí odkaz:
https://doaj.org/article/53fa47fc4b8a43bb897ad3d40190bc90
Autor:
Robert T. Conrow, Jon K. Gelhaus
Publikováno v:
ZooKeys, Vol 1080, Iss , Pp 135-163 (2022)
Wing interference patterns (WIP) are stable structural colors in insect wings caused by thin-film interference. This study seeks to establish WIP as a stable, sexually dimorphic, species-level character across the four families of Tipuloidea and inve
Externí odkaz:
https://doaj.org/article/e38bad6676e14c96a4c50c333a8ba831
Publikováno v:
European Journal of Taxonomy, Vol 735, Iss 1 (2021)
The genus Elliptera Schiner, 1863 is represented by ten species worldwide, but immatures of only the European species E. omissa Schiner has been described so far. Molecular methods were used to associate larvae and adults for two East Asian species f
Externí odkaz:
https://doaj.org/article/7bc7f3790d0c4984bcdf88aae2654ea7
Publikováno v:
ZooKeys, Vol 638, Iss , Pp 105-123 (2016)
Streams in the Mongolian Altai Mountains are mostly fed from glaciers and are extreme conditions for mayflies because of high elevation, low temperatures and low annual precipitation. Previous information about mayflies of Western Mongolia is scarce,
Externí odkaz:
https://doaj.org/article/857e610450b64f4582731adfc15fa53c
Publikováno v:
The Southwestern Naturalist. 67
Autor:
Jon K. Gelhaus, Alain Maasri, Nicholas E. Kotlinski, James H. Thorp, Bolortsetseg Erdenee, Barbara Hayford
Publikováno v:
Inland Waters. 11:368-380
Current understanding of how streamflow in terminal basins is driven by climatic and hydrogeomorphic characteristics is limited, despite the fact that these closed systems show an increased sensiti...
Publikováno v:
Hydrobiologia. 847:1887-1902
Land-use practices in Mongolia can lead to environmental degradation and consequently affect the structure and function of biological communities. The main aim of this study was to determine land-use effects on freshwater macroinvertebrate communitie
Autor:
Jon K. Gelhaus, R. William Bouchard
Publikováno v:
Freshwater Science. 39:86-100
In 2003, large numbers of pupal exuviae and adults of an unusual skating crane fly (Tipuloidea:Limoniidae) were collected from a trout stream in southern Minnesota, USA. The species was ide...
Autor:
Alain Maasri, Anne Schechner, Jon K. Gelhaus, Bolortsetseg Erdenee, Walter K. Dodds, James H. Thorp, Sudeep Chandra
Publikováno v:
Freshwater Science. 38:692-701
The dissolved oxygen diel cycle is an inherent feature of stream ecosystems, and the amplitude in this diel fluctuation is thought to strongly influence the composition of stream communitie...
Autor:
Alain Maasri, Scott J. Kenner, Sudeep Chandra, Jon K. Gelhaus, Flavia Tromboni, James H. Thorp
Publikováno v:
Science of The Total Environment. 677:184-193
Rivers are being increasingly analyzed from a holistic scale focus, imposing the challenge to establish a clear sampling framework that integrates complex valley-to-reach hydrogeomorphic features. Here, we address this challenge by examining macroinv