#phenotypic plasticity

Species Control

Phenotypic plasticity refers to:

“Morphological adaptation” for phenotypic plasticity refers to. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Management outcomes depend on scale and context: suppressing abundance at one site does not guarantee regional eradication when dispersal reconnects treated and untreated populations. The remaining alternatives—“Fixed genetic traits”, “Low reproductive rates”, “Limited tolerance”—refer to different states, processes, or scales and therefore do not express the same causal relationship. Sp

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

View Details

Types of Species

Phenotypic plasticity helps invasive species:

“Adapt to various environmental conditions” for phenotypic plasticity helps invasive species. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Species management must identify the demographic stage and ecological process that most strongly limits population growth. Prevention, early detection, removal, habitat manipulation, and biological control act at different points in an invasion or recovery trajectory. The remaining alternatives—“Develop specialized diets”, “Occupy narrow habitats”, “Reduce c

Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation

View Details

BIODIVERSITY & IDH

Ecads when kept in same environment become:

Ecads are environmentally induced forms within a species, not genetically fixed races. Different conditions can produce contrasting body size, pigmentation, leaf form, or physiology through phenotypic plasticity. When those individuals are transferred to a common environment, the environmental cues become similar and their phenotypes tend to converge, making them morphologically similar. This common-garden logic distinguishes plastic responses from inherited differentiation: persistent differences would suggest genetic divergence, whereas disappearing differences indicate environmental control

Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation

View Details

BIODIVERSITY & IDH

The concept of phenotypic plasticity in ecological forms is associated with:

An ecad is a phenotypic form produced by environmental conditions within the plastic response of a genotype. Genetically similar plants, for example, may develop different leaf thickness, stature, or branching in sun, shade, wet, or dry habitats. These changes need not involve allele-frequency divergence and may disappear when individuals are transferred to a common environment. This is phenotypic plasticity: one genotype generates different phenotypes across environments, represented by its reaction norm. An ecotype differs because local traits are genetically based and remain heritable in a

Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation

View Details