Acute Lethal and Sublethal Effects of a Neem-Based Insecticide on Nontarget Aquatic Insects in Stream Channels

1999 ◽  
Vol 63 (3) ◽  
pp. 365-371 ◽  
Author(s):  
D. P. Kreutzweiser ◽  
S. S. Capell ◽  
T. A. Scarr
Keyword(s):  
Aquatic Insects ◽  
Sublethal Effects ◽  
Stream Channels

scholarly journals Stable isotope analyses of web-spinning spider assemblages along a headwater stream in Puerto Rico

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1324 ◽  
Author(s):  
Sean P. Kelly ◽  
Elvira Cuevas ◽  
Alonso Ramírez
Keyword(s):  
Puerto Rico ◽  
Stable Isotope ◽  
Aquatic Insects ◽  
Riparian Forest ◽  
Headwater Stream ◽  
Stream Channel ◽  
Stream Channels ◽  
Stable Isotope Analyses ◽  
Terrestrial Insects ◽  
Isotope Analyses

Web-spinning spiders that inhabit stream channels are considered specialists of aquatic ecosystems and are major consumers of emerging aquatic insects, while other spider taxa are more commonly found in riparian forests and as a result may consume more terrestrial insects. To determine if there was a difference in spider taxa abundance between riverine web-spinning spider assemblages within the stream channel and the assemblages 10 m into the riparian forest, we compared abundances for all web-spinning spiders along a headwater stream in El Yunque National Forest in northeast Puerto Rico. By using a nonmetric dimensional scaling (NMDS) abundance analysis we were able to see a clear separation of the two spider assemblages. The second objective of the study was to determine if aquatic insects contributed more to the diet of the spider assemblages closest to the stream channel and therefore stable isotope analyses ofδ15N andδ13C for web-spinning spiders along with their possible prey were utilized. The results of the Bayesian mixing model (SIAR) however showed little difference in the diets of riverine (0 m), riparian (10 m) and upland (25 m) spiders. We found that aquatic insects made up ∼50% of the diet for web-spinning spiders collected at 0 m, 10 m, and 25 m from the stream. This study highlights the importance of aquatic insects as a food source for web-spinning spiders despite the taxonomic differences in assemblages at different distances from the stream.

Examining Sublethal Effects of Anticoagulant Rodenticides on Haemosporidian Parasitemia and Body Condition in Migratory Red-Tailed Hawks

2019 ◽  
Vol 53 (4) ◽  
pp. 402 ◽  
Author(s):  
Laura A. Kwasnoski ◽  
Kristina A. Dudus ◽  
Allen M. Fish ◽  
Emily V. Abernathy ◽  
Christopher W. Briggs
Keyword(s):  
Body Condition ◽  
Sublethal Effects ◽  
Anticoagulant Rodenticides

Preliminary Results on Aquatic Insects in the Me Linh Station for Biodiversity, Vinh Phuc Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Nguyen Van Hieu ◽  
Nguyen Van Vinh
Keyword(s):  
Quantitative Analysis ◽  
Aquatic Insects ◽  
Field Survey ◽  
Aquatic Insect ◽  
Insect Species ◽  
Functional Feeding Groups ◽  
Species Number ◽  
Feeding Groups ◽  
Preliminary Results

An intensive field survey on aquatic insects of Me Linh Station for Biodiversity in Vinhphuc province was conducted in December 2015. Specimens were collected at 8 different sites and aquatic insects were collected both quantitatively by Surber net and qualitatively by hand net, pond net. As a result, a total of 110 aquatic insect species belonging to 98 genera, 49 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 26 species, followed by Odonata with 25 species, Trichoptera with 18 species, Coleoptera with 15 species, Hemiptera with 11 species, Diptera with 9 species. Lepidoptera, Plecoptera and Megaloptera had the lowest of species number, represented by 3 species of Lepidoptera, 2 species of Plecoptera and 1 species of Megaloptera. Besides, the quantitative analysis results and the functional feeding groups were provided.

Distribution, Habitat Environment, and Conservation of Aquatic Insects from the Gapyeong Creek in Gyeonggi-do, Korea

2003 ◽  
Vol 1 (1) ◽  
pp. 1-25 ◽  
Author(s):  
Yeon Jae BAE ◽  
Young Hun JIN ◽  
Jeong Mi HWANG ◽  
Van Vinh NGUYEN ◽  
Duc Huy HOANG ◽  
...  
Keyword(s):  
Aquatic Insects ◽  
Habitat Environment
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