Severing Ties: Different Responses of Larval and Adult Aquatic Insects to Atrazine and Selenium

2018 ◽  
Vol 52 (15) ◽  
pp. 8848-8857 ◽  
Author(s):  
Brianna L. Henry ◽  
Jeff S. Wesner
Keyword(s):  
Aquatic Insects ◽  
Adult Aquatic Insects

Spatial and seasonal variability of emergent aquatic insects and nearshore spiders in a subtropical estuary

2019 ◽  
Vol 70 (4) ◽  
pp. 541 ◽  
Author(s):  
Martha J. Zapata ◽  
S. Mažeika P. Sullivan
Keyword(s):  
Aquatic Insects ◽  
High Salinity ◽  
Aquatic Insect ◽  
Freshwater Ecosystems ◽  
Dispersal Ability ◽  
Insect Community ◽  
Insect Communities ◽  
Low Salinity ◽  
Subtropical Estuary ◽  
Adult Aquatic Insects

Variability in the density and distribution of adult aquatic insects is an important factor mediating aquatic-to-terrestrial nutritional subsidies in freshwater ecosystems, yet less is understood about insect-facilitated subsidy dynamics in estuaries. We surveyed emergent (i.e. adult) aquatic insects and nearshore orb-weaving spiders of the families Tetragnathidae and Araneidae in a subtropical estuary of Florida (USA). Emergent insect community composition varied seasonally and spatially; densities were lower at high- than low-salinity sites. At high-salinity sites, emergent insects exhibited lower dispersal ability and a higher prevalence of univoltinism than low- and mid-salinity assemblages. Orb-weaving spider density most strongly tracked emergent insect density rates at low- and mid-salinity sites. Tetragnatha body condition was 96% higher at high-salinity sites than at low-salinity sites. Our findings contribute to our understanding of aquatic insect communities in estuarine ecosystems and indicate that aquatic insects may provide important nutritional subsidies to riparian consumers despite their depressed abundance and diversity compared with freshwater ecosystems.

Movements of adult aquatic insects near streams in Southern Ontario

Hydrobiologia ◽  
1981 ◽  
Vol 77 (1) ◽  
pp. 65-69 ◽  
Author(s):  
G. A. Bird ◽  
H. B. N. Hynes
Keyword(s):  
Aquatic Insects ◽  
Southern Ontario ◽  
Adult Aquatic Insects

Inland dispersal of adult aquatic insects

1996 ◽  
Vol 36 (2) ◽  
pp. 265-276 ◽  
Author(s):  
ZSOLT KOVATS ◽  
JAN CIBOROWSKI ◽  
LYNDA CORKUM
Keyword(s):  
Aquatic Insects ◽  
Adult Aquatic Insects

Movements of adult aquatic insects along a Montana (USA) springbrook

1988 ◽  
Vol 10 (2) ◽  
pp. 99-104 ◽  
Author(s):  
Thomas S. Jones ◽  
Vincent H. Resh
Keyword(s):  
Aquatic Insects ◽  
Adult Aquatic Insects

scholarly journals Monitoring of adult aquatic insect activities and ecological role in the riparian zone of streams in the Western Ghats, India

2016 ◽  
Vol 4 (3) ◽  
pp. 460
Author(s):  
T. Kubendran ◽  
M. Ramesh
Keyword(s):  
Aquatic Insects ◽  
Western Ghats ◽  
Riparian Zone ◽  
Food Resource ◽  
Aquatic Insect ◽  
Ecological Role ◽  
Freshwater Biodiversity ◽  
The Western Ghats ◽  
Adult Aquatic Insects

<div><p><em>The Western Ghats, running parallel to the west coast of India between 8° N and 21° N is a prominent feature of the peninsular India. In freshwater biodiversity hotspots like the Western Ghats, no information is available on activates and ecological role of adult aquatic insect in the riparian zone of streams.</em><strong><em> </em></strong><em>Most adult aquatic insects that emerge from streams live briefly in the nearby riparian zone. Adult activities, such as mating dispersal and feeding influence their distribution in the terrestrial habitat. An observation at Kurangani streams, Western Ghats, India has shown that both numbers and biomass of adult aquatic insects are greatest in the near stream vegetation; however, adult insects can be relatively common 1 to 10 feet from the stream. Why because, adult aquatic insects are abundant and they are primary food resource for many riparian insectivores. The role of adult aquatic insects in the riparian zone must be better understood for riparian and aquatic food chain to be complete. </em></p></div>

Exceptional color preferences for flying adult aquatic insects

2021 ◽  
Author(s):  
Junjiro N. Negishi ◽  
Tomohiro Nakagawa ◽  
Futoshi Nakamura
Keyword(s):  
Aquatic Insects ◽  
Color Preferences ◽  
Adult Aquatic Insects

scholarly journals Stable isotope ratios of emergent adult aquatic insects can be used as indicators of water pollution in the hyporheic food web

2020 ◽  
Vol 118 ◽  
pp. 106738
Author(s):  
Md. Khorshed Alam ◽  
Junjiro N. Negishi ◽  
Mirza A.T.M. Tanvir Rahman ◽  
Janine Rodulfo Tolod
Keyword(s):  
Water Pollution ◽  
Stable Isotope ◽  
Food Web ◽  
Aquatic Insects ◽  
Isotope Ratios ◽  
Stable Isotope Ratios ◽  
Adult Aquatic Insects

The fire pulse: wildfire stimulates flux of aquatic prey to terrestrial habitats driving increases in riparian consumers

2010 ◽  
Vol 67 (3) ◽  
pp. 570-579 ◽  
Author(s):  
Rachel L. Malison ◽  
Colden V. Baxter
Keyword(s):  
Benthic Invertebrates ◽  
Aquatic Insects ◽  
Riparian Vegetation ◽  
Aquatic Insect ◽  
Dry Mass ◽  
High Severity ◽  
Aquatic Insect Emergence ◽  
Terrestrial Habitats ◽  
Aquatic Productivity ◽  
Adult Aquatic Insects

We investigated the midterm effects of wildfire (in this case, five years after the fire) of varying severity on periphyton, benthic invertebrates, emerging adult aquatic insects, spiders, and bats by comparing unburned sites with those exposed to low severity (riparian vegetation burned but canopy intact) and high severity (canopy completely removed) wildfire. We observed no difference in periphyton chlorophyll a or ash-free dry mass among different burn categories but did observe significantly greater biomass of benthic invertebrates in both high severity burned and unburned reaches versus low severity burned reaches. Moreover, a significantly greater flux of adult aquatic insect emergence occurred at sites that experienced high severity fire versus low severity burned and unburned sites. The greatest number of spiders and bat echolocation calls were also observed at sites of high severity fire. Our results suggest that fires of different severity may have very different affects on stream-riparian food webs and that high severity wildfire may lead to an extended “fire pulse” that stimulates aquatic productivity and flux of prey to terrestrial habitats, driving local increases in riparian consumers.

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