Life histories, secondary production and microdistribution of hydropsychid caddisflies (Trichoptera) in a tropical forest stream

1997 ◽  
Vol 243 (1) ◽  
pp. 191-210 ◽  
Author(s):  
David Dudgeon
Keyword(s):  
Tropical Forest ◽  
Secondary Production ◽  
Life Histories ◽  
Forest Stream

scholarly journals Community structure, life histories and secondary production of stoneflies in two small mountain streams with different degree of forest cover

2015 ◽  
Author(s):  
Pavel Beracko ◽  
Andrea Kušnírová ◽  
Michaela Partlová ◽  
Jana Ciceková
Keyword(s):  
Community Structure ◽  
Secondary Production ◽  
Life Histories ◽  
Forest Cover ◽  
Adult Emergence ◽  
Life Cycles ◽  
Mountain Streams ◽  
Annual Life Cycle ◽  
Forested Stream ◽  
The Difference

<p>Our study examines community structure and nymphal biology (life cycles and secondary production) of stoneflies in two adjacent mountain streams with different degree of forest cover in the Prosiečanka River Basin (Chočské Vrchy Mts., West Carpathians). One of the streams has non-forested catchment, converted to meadows and pastures, while the other one has catchment with 60% covered by spruce forest. Differences in forest cover and in thermal regime of the streams were reflected by the difference of stonefly communities at their structural and functional level. Species <em>Nemoura cinerea and Leuctra aurita </em>created stonefly assemblage in non-forested stream, whereas <em>Nemoura cinerea</em> also occurred in naturally forested stream together with species <em>Leuctra armata, Leuctra nigra, Leuctra prima, Siphonoperla neglecta</em> and <em>Arcynopteryx dichroa</em>. All examined species had maximally annual life cycle and in eudominant species <em>Nemoura cinerea</em> one month shift was found in nymphal hatching and adult emergence between streams. Total secondary production of stoneflies in undisturbed stream (126.46 mg DW m<sup>-2</sup> y<sup>-1</sup>) was more than two times higher than the production in non-forested stream (47.39 mg DW m<sup>-2</sup> y<sup>-1</sup>). </p>

scholarly journals Daytime habitat use and abundance of a freshwater shrimp Macrobrachium yui Holthuis, 1950 (Decapoda: Palaemonidae) in tropical forest stream, northern Laos

2021 ◽  
Vol 50 (0) ◽  
pp. 151-163
Author(s):  
Aloun Kounthongbang ◽  
Pany Souliyamath ◽  
Phonenaphet Chanthasone ◽  
Phutsamone Phommachan ◽  
Oulaytham Lasasimma ◽  
...  
Keyword(s):  
Habitat Use ◽  
Tropical Forest ◽  
Freshwater Shrimp ◽  
Forest Stream

scholarly journals Demographic trade-offs predict tropical forest dynamics

Science ◽  
2020 ◽  
Vol 368 (6487) ◽  
pp. 165-168 ◽  
Author(s):  
Nadja Rüger ◽  
Richard Condit ◽  
Daisy H. Dent ◽  
Saara J. DeWalt ◽  
Stephen P. Hubbell ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Forest Dynamics ◽  
Life Histories ◽  
Forest Succession ◽  
Anthropogenic Impacts ◽  
Basal Area ◽  
Tropical Tree ◽  
Modeling Framework ◽  
Trade Offs ◽  
Tropical Forest Dynamics

Understanding tropical forest dynamics and planning for their sustainable management require efficient, yet accurate, predictions of the joint dynamics of hundreds of tree species. With increasing information on tropical tree life histories, our predictive understanding is no longer limited by species data but by the ability of existing models to make use of it. Using a demographic forest model, we show that the basal area and compositional changes during forest succession in a neotropical forest can be accurately predicted by representing tropical tree diversity (hundreds of species) with only five functional groups spanning two essential trade-offs—the growth-survival and stature-recruitment trade-offs. This data-driven modeling framework substantially improves our ability to predict consequences of anthropogenic impacts on tropical forests.

Antarctic marine secondary production and the phenomenon of cold adaptation

1977 ◽  
Vol 279 (963) ◽  
pp. 55-66 ◽  
Keyword(s):  
Food Availability ◽  
Growth Rates ◽  
Secondary Production ◽  
Cold Adaptation ◽  
Life Histories ◽  
Short Term ◽  
Signy Island ◽  
Antarctic Waters ◽  
Antarctic Marine ◽  
Mode Of Life

For several years marine biologists of British Antarctic Survey have been studying the nearshore communities at Signy Island and South Georgia. Most of these studies have been continued throughout the year so that variations in production in both the long and short term have been investigated. In this paper changes in the rate of growth of selected crustacean, molluscan and fish species are considered throughout their life histories. Variations in growth rates are considered in relation to temperature, food availability and mode of life and comparisons are made with species from outside antarctic waters.

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