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 (ē′kə-tōn′, ĕk′ə-)
A transitional zone between two communities containing species characteristic of each.

[eco- + Greek tonos, tension, tone; see tone.]


(ˈiːkəˌtəʊn; ˈɛkə-)
(Environmental Science) the zone between two major ecological communities
[C20: from eco(logy) + -tone, from Greek tonos tension, tone]
ˈecoˌtonal adj


(ˈɛk əˌtoʊn, ˈi kə-)

the transition zone between two different plant communities, as that between forest and prairie.
[1900–05; eco- + tone < Greek tónos tension]
ec`o•ton′al, adj.


a transitional area or zone between two different forms of vegetation, as between forest and plain. — ecotonal, adj.
See also: Environment
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References in periodicals archive ?
Furthermore, the occurrence of 'escaped' vertical stems only on the extreme downwind edge of larger krummholz mats is dynamically similar to the ultimate transformation of stunted/disfigured growth forms of ecotonal trees to the forest-tree habit characteristic of the intact subalpine forest.
Ecotonal areas (interface areas between major habitat types) are excellent habitats for hard ticks.
Although the records are somewhat scattered, most localities embrace an ample arc that roughly corresponds to an ecotonal area between Monte and Chaco+Espinal (Acosta 1996).
minimus predominately occupies the sagebrush scrub, with both species being abundant in an intermediate ecotonal area containing a relatively even mixture of conifers and sagebrush.
Third, human plague cases in the southwestern United States are closely associated with ecotonal pinon-juniper habitat and elevation (9).
Wadi Hammeh 27 is situated in an ecotonal setting between Irano-Turanian steppic lowlands and Mediterranean highlands, at an altitude of 83.
This species inhabits thornforest, tropical deciduous forest, and the ecotonal belt between tropical deciduous forest and pine-oak forest (Campbell & Lamar 2004).
The aims of this paper are to survey the insects infecting fruits of 2 species of Psittacanthus (Loranthaceae) in the Cerrado-Pantanal ecotonal area of Southwestern Brazil, also to record which species of host trees or shrubs the mistletoe was parasitizing.
Small rodents were live-trapped in deciduous mixed forest and ecotonal areas in Lithuania and Norway from June till October 2005-2007.
Conservation of cerrado enclaves offer the rare opportunity to combine preservation of sharp ecotonal zones with high inter-habitat diversity in Amazonia with establishment of a complementary network of conservation units directed at preserving the cerrado biome throughout South America.
The weakness of Lower Palaeolithic settlement in broken upland regions appears puzzling since these environments in the Holocene are associated with altitudinally-zoned vegetation patches and the close spatial packing of ecotonal boundaries.