Depth-specific patterns of benthic secondary production in an oligotrophic lake

Estimating benthic invertebrate production in lakes: a comparison of methods and scaling from individual taxa to the whole-lake level

“…At the habitat level, we examined the relative contributions of model versus data uncertainty for estimates derived from regression models and literature P/Bs. The four methods we considered are widely used in community and ecosystem studies of invertebrate production in a variety of ecosystem types (e.g., Lindegaard and Jonasson 1979;Strayer and Likens 1986;Lindegaard 1992;Huryn 1996;Carlisle and Clements 2003;Stead et al 2005;Woodcock and Huryn 2007;Babler et al 2008), though there is a paucity of studies that compare alternative methods and explicitly consider uncertainty associated with production estimates.…”

“…CPI values were estimated based on the literature (Stead et al 2005;Babler et al 2008). SF production estimates were generated for the 30 taxonhabitat combinations with appropriate size-frequency distributions.…”

“…Research from the International Biological Program era (1964)(1965)(1966)(1967)(1968)(1969)(1970)(1971)(1972)(1973)(1974)) produced a number of benthic invertebrate production measurements for lakes (summarized in Waters 1977;Plante and Downing 1989;Lindegaard 1994;Gratton and Vander Zanden 2009), though many of the studies focused on a single taxon (Waters 1977;Plante and Downing 1989). Developing a broader understanding of energy flow in lake ecosystems necessitates expanding from populations and individual taxa, to that of communities and ecosystems, which relatively few studies have done (Strayer and Likens 1986;Babler et al 2008). It also requires considering benthic invertebrate production within a broader food web context, through simultaneous production estimates for other trophic groups in benthic and pelagic habitats (Lindegaard 1994;Vander Zanden et al 2006).…”

“…Habitat-level benthic invertebrate production estimates are typically generated by summing production estimates for individual invertebrate taxa within a specific habitat or site (Carlisle and Clements 2003;Woodcock and Huryn 2007;Babler et al 2008). Whole-ecosystem estimates can then be generated by multiplying habitat-level estimates by the area of each habitat within an ecosystem, and summing across habitats.…”

Profundal benthic invertebrates in an oligotrophic tropical lake: different strategies for coping with anoxia

“…Thus, the small number of benthic taxa is attributed to the anoxia of the profundal zone (Jónasson, 1992;Kajak, 1977;Moore, 1981;Ohtaka et al, 2006). Overcoming anoxia is difficult for most metazoans (Babler et al, 2008), with the exception of a few species that are capable of tolerating anoxic conditions (Brodersen et al, 2004;Hamburger et al, 2000;Cleto-Filho and Arcifa, 2006). The taxonomic groups that comprised the benthic invertebrate assemblage of the deep area of Lake Alchichica, namely, ostracods and chironomids, are frequently present in tropical lakes (Tudorancea and Harrison, 1988;Jiménez and Springer, 1996;Sibaja-Cordero and Umaña-Villalobos, 2008).…”