scholarly journals Ecosystem engineering alters density‐dependent feedbacks in an aquatic insect population

Ecology ◽  
2021 ◽  
Author(s):  
Joseph S. Phillips ◽  
Amanda R. McCormick ◽  
Jamieson C. Botsch ◽  
Anthony R. Ives
Keyword(s):  
Aquatic Insect ◽  
Ecosystem Engineering ◽  
Insect Population ◽  
Density Dependent

scholarly journals Ecosystem engineering alters density-dependent feedbacks in an aquatic insect population

2021 ◽  
Author(s):  
Joseph S. Phillips ◽  
Amanda R. McCormick ◽  
Jamieson C. Botsch ◽  
Anthony R. Ives
Keyword(s):  
Primary Production ◽  
Aquatic Insect ◽  
Algal Growth ◽  
Adult Emergence ◽  
Benthic Algae ◽  
Ecosystem Engineering ◽  
Benthic Primary Production ◽  
Density Dependent ◽  
Benthic Production ◽  
Positive Effects

AbstractEcosystem engineers have large impacts on the communities in which they live, and these impacts may feed back to populations of engineers themselves. In this study, we assessed the effect of ecosystem engineering on density-dependent feedbacks for midges in Lake Mývatn, Iceland. The midge larvae reside in the sediment and build silk tubes that provide a substrate for algal growth, thereby elevating benthic primary production. Benthic algae are in turn the primary food source for the midge larvae, setting the stage for the effects of engineering to feed back to the midges themselves. Using a field mesocosm experiment manipulating larval midge densities, we found a generally positive but nonlinear relationship between density and benthic production. Furthermore, adult emergence increased with the primary production per midge larva. By combining these two relationships in a simple model, we found that the positive effect of midges on benthic production weakened the negative density dependence at low to intermediate larval densities. However, this benefit disappeared at high densities when midge consumption of primary producers exceeded their positive effects on primary production through ecosystem engineering. Our results illustrate how ecosystem engineering can alter density-dependent feedbacks for engineer populations.

Monitoring the acoustic activity of an aquatic insect population in relation to temperature, vegetation and noise

2018 ◽  
Vol 65 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Camille Desjonquères ◽  
Fanny Rybak ◽  
Juan Sebastian Ulloa ◽  
Alexandre Kempf ◽  
Avner Bar Hen ◽  
...  
Keyword(s):  
Aquatic Insect ◽  
Insect Population ◽  
Acoustic Activity

Ecosystem Engineering by a Tropical Tadpole: Density-Dependent Effects on Habitat Structure and Larval Growth Rates

Copeia ◽  
1999 ◽  
Vol 1999 (2) ◽  
pp. 495 ◽  
Author(s):  
Alexander S. Flecker ◽  
Brian P. Feifarek ◽  
Brad W. Taylor
Keyword(s):  
Growth Rates ◽  
Habitat Structure ◽  
Larval Growth ◽  
Ecosystem Engineering ◽  
Density Dependent

Urbanization impacts on production and recruitment of Fundulus heteroclitus in salt marsh creeks

2020 ◽  
Vol 645 ◽  
pp. 187-204
Author(s):  
PJ Rudershausen ◽  
JA Buckel
Keyword(s):  
Salt Marsh ◽  
Salt Marshes ◽  
Fundulus Heteroclitus ◽  
Multiple Factor Analysis ◽  
Southeastern Usa ◽  
Density Dependent ◽  
Dependent Relationship ◽  
Juvenile Abundance ◽  
The Relationship ◽  
Throw Trap

It is unclear how urbanization affects secondary biological production in estuaries in the southeastern USA. We estimated production of larval/juvenile Fundulus heteroclitus in salt marsh areas of North Carolina tidal creeks and tested for factors influencing production. F. heteroclitus were collected with a throw trap in salt marshes of 5 creeks subjected to a range of urbanization intensities. Multiple factor analysis (MFA) was used to reduce dimensionality of habitat and urbanization effects in the creeks and their watersheds. Production was then related to the first 2 dimensions of the MFA, month, and year. Lastly, we determined the relationship between creek-wide larval/juvenile production and abundance from spring and abundance of adults from autumn of the same year. Production in marsh (g m-2 d-1) varied between years and was negatively related to the MFA dimension that indexed salt marsh; higher rates of production were related to creeks with higher percentages of marsh. An asymptotic relationship was found between abundance of adults and creek-wide production of larvae/juveniles and an even stronger density-dependent relationship was found between abundance of adults and creek-wide larval/juvenile abundance. Results demonstrate (1) the ability of F. heteroclitus to maintain production within salt marsh in creeks with a lesser percentage of marsh as long as this habitat is not removed altogether and (2) a density-dependent link between age-0 production/abundance and subsequent adult recruitment. Given the relationship between production and marsh area, natural resource agencies should consider impacts of development on production when permitting construction in the southeastern USA.

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.

Sign in / Sign up

Export Citation Format

Share Document