Question

Ecotones (a) contain only species found in the bordering ecosystems.

Answer 1

(a) contain only species found in the bordering ecosystems.

(b) have the same abiotic characteristics as the bordering ecosystems.

(c) consist of two or more landscapes.

(d) are transitional regions between ecosystems.
ecology environment

Answer 2

Explanation:

Aquatic–Terrestrial Ecotones

Ecotones can be defined in various ways (Décamps and Naiman, 1990), but in essence they are dynamic boundaries and transitional areas between two very distinct ecological habitats containing different communities and physicochemical features. In terrestrial systems, these are typically located between habitat patches or ecosystems, such as forest to grassland, whereas in aquatic systems, a major ecotonal transition is between land and water (cf. Riser, 1990). The physicochemical change for animals in these aquatic–terrestrial ecotones are more dramatic than for animals in a terrestrial ecotone because the habitats vary more substantially in a suite of characteristics, such as temperature, oxygen content, chemical conditions (e.g., pH, salinity, osmotic/ionic state), physical support for the animal (buoyancy), and predators. The riparian zone is a major transitional zone for all types of aquatic systems (Clary and Medin, 1999).