Genetic diversity often is lower in populations that are found on the periphery or limits of distribution compared with central populations, caused by small effective population sizes, greater geographic isolation, and higher environmental pressures on the margins of distribution [60] [63].
Subsequently, the lower 1% margin of this distribution was compared with the F distribution for the respective test statistic to assess statistical significance.
These two morphs coexist over a broad portion of the distribution range in Southern Mozambique, with the yellow morph predominating in the margin of the distribution range [ 18].
Typically, the (ancestral) sexual population is located in the distribution centre of the species, while parthenogens are present at the margin of the distribution [ 5].
This is a first indication that estimating elasticities using data on very heterogeneous firms "averages out" adjustment behavior of the firms at the margin of the distribution.
Our study site is located at the margin of its distribution in East Asia.
Between EGFR 1+ and 2+/3+, the widest margin of the distribution was recognized at the ND 35%.
Our pollination treatments confirmed that L. borealis is SI and that fruit set depends on insect pollination in this field population at the margin of its distribution.
Although species distribution models highlight the general vulnerability of southern range edge populations of beech to rising drought stress (Kramer et al. 2010), population decline is not predicted to be limited only to the very southern margin of its distribution, nor is universal decline across the southern range-edge of this species likely.
Conversely, infrequently observed behaviours at the margins of the distribution may be associated with low performance.
The distribution and abundance of many vectors may be affected by even small changes in ambient temperature and precipitation, or by changes in vegetation, host populations, and water availability, especially at the margins of vector distribution.
