Indirect effects of contaminants in aquatic ecosystems.

Biological control is the suppression of populations of pests and weeds by living organisms. These organisms can provide important protection from invasive species and protect our environment by reducing the need for pesticides. However, they also pose possible environmental risks, so biological control interventions must be undertaken with great care. This book enhances our understanding of biological control interactions by combining theory and practical application. Using a combination of historical analyses, theoretical models and case studies, with explicit links to invasion biology, the authors cover biological control of insects, weeds, plant pathogens and vertebrate animals. The book reflects increasing recognition of risks over the past 20 years, and incorporates the latest technological advances and theoretical developments. It is ideal for researchers and students of biological control and invasion biology.

Biological Control: Ecology and Applications

The value of meta-analysis in ecology hinges on the reproducibility of patterns generated by quantitative synthesis. Meta-analysts will vary in the criteria they use to screen studies and select data within studies, even when addressing exactly the same question. We summarize some of the many decisions that an ecologist must make in deciding what data to include in a synthesis. We then show, using multiple meta-analyses taken from the same literature on stream predation experiments, that meta-analytic conclusions can be colored by selection criteria that are not specifically a function of the relevance of the data. As a consequence, we recommend that meta-analysts perform several meta-analyses using different selection criteria to examine the robustness of reported findings. We also advise ecological meta-analysts to minimize use of selection criteria that are based on judgments of study quality when extracting data from the literature, because of the potential for unconscious bias. The influence of quali...

The importance of data-selection criteria: meta-analyses of stream predation experiments

Challenges and opportunities in integrating ecological knowledge across scales

https://era.library.ualberta.ca/items/a5052bc3-5dce-44bd-b3b3-55e3c2f99bfc/view/09ebed66-9b54-4a51-8ae6-6ad19c7c34e5/TPB_2007.pdf

Spatial patterns and coexistence mechanisms in systems with unidirectional flow.

We present three models representing the trophic and behavioral dynamics of a simple food chain (primary producers, grazers, and predators) at temporal scales shorter than the scale of consumer rep ...

Primary-productivity gradients and short-term population dynamics in open systems

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Primary-productivity gradients and short-term population dynamics in open systems