An urchin barren is commonly defined as an urchin-dominated area with little or no kelp. Urchin grazing pressure on kelp is a direct and observable cause...

Sea urchins or urchins (/ˈɜːrtʃɪnz/) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed,...

the growth of many plants Urchin barrens, where the proliferation of sea urchins has caused a massive kelp die-off The Barrens may refer to: the Tundra...

climate change; when urchins completely eliminate kelp from an area, an urchin barren results. Sea urchins like the purple sea urchin have been used for...

and fauna, high biomass density, and high biological diversity. An urchin barren is an example of a depauperate ecosystem. As it is a biological community...

Kina (Evechinus chloroticus) is a sea urchin endemic to New Zealand. This echinoderm belongs to the family Echinometridae and it can reach a maximum diameter...

macroalgal (i.e. kelp forest) to denuded landscapes dominated by sea urchins (or ‘urchin barrens’) is a widespread phenomenon, often resulting from trophic cascades...

can result in an increase in urchin numbers, causing overgrazing of kelp forests, resulting in an alga-denuded "urchin barren". On the Great Barrier Reef...

sea urchin populations "explode" in coastal waters and destroy all the macroalgae present. What was previously a kelp forest becomes an urchin barren that...

meet. Growth may be limited by grazing. Sea urchins, for example, can reduce entire areas to urchin barrens. The kelp life cycle involves a diploid sporophyte...