Journal ArticleDOI
Energetics of reproduction and its evolutionary implications
TLDR
The majority of invertebrates so far studied are more efficient converters of absorbed food energy to gametes than they are, as adults, to somatic tissues, but the fact that the metabolic processes associated with gamete production are distinct from those associated with the production of somatic tissue has implications for the theory of life-cycle evolution.Abstract:
The majority of invertebrates so far studied are more efficient converters of absorbed food energy to gametes than they are, as adults, to somatic tissues. Indeed, reproductive conversion efficiencies sometimes better the best conversion efficiencies associated with somatic production (usually in juveniles). Depending on species, this is achieved either by an increase in absorption relative to respiratory losses, or a reduction in respiratory losses relative to absorption, or by supplementing the energy absorbed from the food with that obtained from somatic stores and tissues, or by a combination of these. The fact that the metabolic processes associated with gamete production are distinct from those associated with the production of somatic tissues has implications for the theory of life-cycle evolution.read more
Citations
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Energy Homeostasis as an Integrative Tool for Assessing Limits of Environmental Stress Tolerance in Aquatic Invertebrates
TL;DR: It is proposed that energy-related biomarkers can be used to determine the conditions when these metabolic transitions occur and thus predict ecological consequences of stress exposures, and assist in explaining and predicting the species' distribution limits in the face of the environmental change and informing the conservation efforts and resource management practices.
Journal ArticleDOI
RESTITUTION OF r- AND K-SELECTION AS A MODEL OF DENSITY-DEPENDENT NATURAL SELECTION
TL;DR: It is argued that rand K-selection may have important ramifications for the understanding of life history evolution, but for the model to be useful, it must be interpreted strictly as it was originally formulated: as a model of density-dependent natural selection.
Journal ArticleDOI
Using Demographic Invariants to Detect Overharvested Bird Populations from Incomplete Data
TL;DR: This work determined from incomplete data that longline fishery bycatch has a biologically significant impact on the growth potential of Black-footed Albatross populations and developed a procedure it calls the "demographic invariant method" (DIM), which can be applied broadly to the conservation and management of harvested bird populations.
Book
A Functional Biology of Nematodes
TL;DR: This paper aims to demonstrate the importance of knowing the carrier and removal status of canine coronavirus, as a source of infection for other animals, in the animal kingdom.
References
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Journal ArticleDOI
The Energetics of Asexual Reproduction and Colony Formation in Benthic Marine Invertebrates
TL;DR: The model predicts that the three torms of organization among anthozoan polyps are related primarily to the size distribution of prey.
Journal ArticleDOI
The relationship between ration, reproductive effort and age-specific mortality in the evolution of life-history strategies-some observations on freshwater triclads
P. Calow,A. S. Woollhead +1 more
Journal ArticleDOI
Food dependence and energetics of freeliving nematodes
TL;DR: Size at maturation and egg size are reduced to a different degree at low food densities, indicating bioenergetical constraint and trade-off between metabolic processes.