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#ecotone

2 public questions tagged with this topic.

BIODIVERSITY & IDH

Which zone is characterized by species from two ecosystems and additional unique species?

An ecotone is the transition zone between two neighbouring ecosystems or communities. Because environmental conditions and resources overlap, it can contain species from both adjoining systems as well as edge specialists that occur mainly in the transition. This combination can produce the edge effect—locally elevated richness, abundance, or interaction intensity. Examples include a forest–grassland margin, an estuary between river and sea, or a marsh–upland boundary. Elevated diversity is not inevitable: abrupt human-created edges may exclude interior specialists, increase predation or invasi

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

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Terristial Biomes

What defines the boundary between two biomes?

“Ecotone” for what defines the boundary between two biomes. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. A biome label describes a broad climatic and structural pattern rather than a single taxonomic assemblage. Similar climates can produce convergent vegetation on different continents even when the species themselves are unrelated. The remaining alternatives—“Climograph”, “Latitude”, “Thermocline”—refer to different states, processes, or scales and therefore do not express the same causal rela

Ref: Campbell Biology, Urry et al., 12th Ed., Ch. 52

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