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#tropical forests

2 public questions tagged with this topic.

Species Control

Invasive species in tropical forests:

“Lantana camara” for invasive species in tropical forests. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Effective control reduces propagule pressure or population growth without causing unacceptable non-target effects. Repeated monitoring is necessary because seed banks, dormant stages, recolonization, and density-dependent compensation can reverse short-term gains. The remaining alternatives—“Eichhornia crassipes”, “Prosopis juliflora”, “Salvinia molesta”—refer to different states, processes,

Ref: Ecology: From Individuals to Ecosystems, Begon et al., 5th Ed., Ch. 21

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Ecosystem Efficiency and Decomposition

Which factor increases decomposition rate in tropical forests?

The keyed response, rapid nutrient cycling, is better understood as a consequence and reinforcing correlate of fast decomposition than as its primary external cause. Tropical forest litter usually decomposes rapidly because warm temperatures and adequate moisture sustain enzymes, microbes, and detritivores throughout much of the year. Rapid mineral release then supports plant uptake and high productivity, creating tight nutrient cycling. Among the listed choices, the key captures this coupled regime, but the causal wording is scientifically imprecise and should be flagged as a mismatch. Enviro

Ref: Fundamentals of Ecology, Odum & Barrett, 5th Ed., Ch. 3

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