A Revision of the Neotropical Aquatic Beetle Genus Stegoelmis (Coleoptera: Elmidae)

1990 ◽  
pp. 1-52 ◽  
Author(s):  
P. J. Spangler
Keyword(s):  
Aquatic Beetle

Model of disharmonic succession of dystrophic lakes based on aquatic beetle fauna (Coleoptera)

2019 ◽  
Vol 70 (2) ◽  
pp. 195 ◽  
Author(s):  
J. Pakulnicka ◽  
A. Zawal
Keyword(s):  
Environmental Conditions ◽  
Physical Parameters ◽  
Humic Lakes ◽  
Ecological Value ◽  
Water Ph ◽  
Rare And Endangered ◽  
Successional Stages ◽  
The One ◽  
Aquatic Beetle

Directional changes in environmental conditions during individual stages of the succession of lakes should determine the character of the aquatic beetle fauna inhabiting them. Can changes in environmental conditions lead to degradation of fauna and to a deterioration of the ecological quality of lakes? We analysed this problem in 40 lakes. The fauna of the lakes proved to be rich and diverse in terms of species. Deterioration of species richness along successional stages was not observed, but distinct changes were noted in faunal composition. The eurytopic component proved stable, whereas changes in specialised components (i.e. lake and river species and tyrphophiles) were of key importance. The formation of beetle communities in the lakes was influenced to a greater extent by environmental factors, namely substrate, macrophyte structure and Sphagnum mat cover, than by the physical parameters of the water (pH, saturation or conductivity). The lakes proved to be of considerable ecological value. Regardless of the stage of succession, they are a habitat for numerous species, including rare and endangered ones. Hence, on the one hand humic lakes play an important role in local biodiversity, whereas on the other hand they may be perceived as refuges for species in environments that could be restored as a result of beneficial measures.

Molecular phylogeny of the aquatic beetle family Noteridae (Coleoptera: Adephaga) with an emphasis on data partitioning strategies

2017 ◽  
Vol 107 ◽  
pp. 282-292 ◽  
Author(s):  
Stephen M. Baca ◽  
Emmanuel F.A. Toussaint ◽  
Kelly B. Miller ◽  
Andrew E.Z. Short
Keyword(s):  
Molecular Phylogeny ◽  
Data Partitioning ◽  
Aquatic Beetle

scholarly journals The impact of dredging of a small lowland river on water beetle fauna (Coleoptera)

2016 ◽  
Author(s):  
Piotr Dabkowski ◽  
Paweł Buczynski ◽  
Andrzej Zawal ◽  
Edyta Stepien ◽  
Edyta Buczynska ◽  
...  
Keyword(s):  
Species Number ◽  
Lowland River ◽  
Fish Ponds ◽  
Sediment Composition ◽  
Small Water ◽  
Water Beetle ◽  
Dominance Structure ◽  
Aquatic Beetle ◽  
The Impact ◽  
Nw Poland

<p>Using the example of a regulated stretch of the Krąpiel River (NW Poland), an analysis of the impact of dredging on the aquatic beetle (Coleoptera) fauna was made. After dredging the beetle fauna became markedly poorer quantitatively and had lower species diversity. Moreover, the qualitative composition and dominance structure were highly transformed. However, species number and diversity increased rapidly and were restored within just half a year. The structure of the restored fauna was most strongly influenced by vegetation, flow velocity and bottom sediment composition. The first to colonize the river were eurytopic beetles and species typical of small water bodies, which had significant refuges in the form of fish ponds bordering on the river; these species dominated the assemblage throughout the study period. Rheophiles with less dispersal power appeared later, and finally rheobionts, in low numbers but occupying an increasing number of sampling sites. </p>

Influence of flooding and vegetation patterns on aquatic beetle diversity in a constructed wetland complex

Wetlands ◽  
2009 ◽  
Vol 29 (4) ◽  
pp. 1214-1223 ◽  
Author(s):  
Ákos Molnár ◽  
Zoltán Csabai ◽  
Béla Tóthmérész
Keyword(s):  
Constructed Wetland ◽  
Vegetation Patterns ◽  
Wetland Complex ◽  
Aquatic Beetle

scholarly journals Sandracottus vijayakumari (Coleoptera: Dytiscidae), a new aquatic beetle species from landslide hit area of Nelliyampathy Forest Range, Western Ghats, Kerala, India

2021 ◽  
Vol 13 (3) ◽  
pp. 17999-18003
Author(s):  
P.P. Anand ◽  
P.P. Ashiq ◽  
M. Smitha ◽  
M. Adithya ◽  
T. Tibin ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Western Ghats ◽  
Beetle Species ◽  
Closely Related Species ◽  
Southern Western Ghats ◽  
Aquatic Beetle ◽  
A New Species

The present study deals with the description of a new species Sandracottus vijayakumari from Nelliyampathy forest range, southern Western Ghats, Kerala, India with a comparative key of closely related species S. dejeani Aube, 1838.  Only one species is known from the genus Sandracottus Sharp, 1882, from southern Western Ghats, Kerala.  The Nelliyampathy forest areas are hilly and the altitude of the hills range 40–1,530 m.  The region experiences several types of landslides especially during the monsoon (August to September 2018).  The new species was discovered in one of the worst landslide hits area in Nelliyampathy forest, Kundrachola region.  The new aquatic beetle species is moderately large in size and often very attractively marked dorsally with complex maculations.  Additionally, the new species shows a strong synapomorphy along with Eretini, Hydaticini, and Aubehydrini tribes.

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