The flowering periodicity and intensity of some subalpine trees and shrubs at Pegleg Flat, Arthur's Pass National Park, was recorded from 1981/82 to 1984/85. Moderate to heavy flowering of most species in 1981/82 was followed by two years of little or no flowering in 1982/83 and 1983/84; almost all species observed flowered heavily in 1984/85. No clear correlation was found between flowering in...

Results Mean summer temperature across the study area decreased by 3 C per degree of increasing latitude (6 C across the study area). In the northern part of the study area, where seed viability was low, alder was less dominant than at southern sites where seed viability was high. The age structure of alder populations across the temperature gradient was highly variable, except in the northern ...

Reduction in herbage production and plant diversity on rangelands on the coastal part of croatia, due to invasion of terpene-rich shrubs has been recorded during the recent period. therefore, there is a strong need to understand ecological relationships between plant and animal components of these shrubby ecosystems. through four consecutive experiments, we investigated the potential of two wel...