Categories · Threats
Habitat shifting and alteration
Climate changes can produce major changes in habitat composition and location. Decreases in precipitation may allow more drought tolerant species to invade or it may also lead to a higher frequency and intensity of fires especially if it is associated with increases in average temperatures.
Conversely, such changes could allow fire-adapted conifers to broaden their range. Increases in average winter temperatures may lead to more intensive and more widely distributed outbreaks of pests and diseases as more adults survive the winter. Individual trees may also be more susceptible to pests and diseases if they are already stressed by water shortages, higher temperatures or where they are already threatened by other cause such as overgrazing. These types of impacts are becoming more evident in the conifer forests of northern America and in the mountains of Morocco and Algeria. Species that are restricted in their geographical range, especially those that have narrow ecological niches such as at the tops of mountains are particularly susceptible to habitat shifting and alteration.
There are 22 taxa in the category – Climate change, Habitat shifting and alteration:
Endemic to eastern China in Zhejiang Province where only a handful of mature individuals survive… Read full species entry >
A relictual species confined to the Santa Lucia mountains of southern California. It is potentially susceptible to indirect effects of climate change and any further change in its status could lead to a listing as Endangered
… Read full species entry >
Distributed in three States of eastern USA but as a result of severe infestation from the Balsam woolly adelgid, only one population remains unaffected… Read full species entry >
A subtropical alpine fir restricted to a few areas in Taiwan. Climate change is likely to have a significant impact on this species. Currently it is assessed as Near Threatened… Read full species entry >
Endemic to the Mt. Panié range in northern New Caledonia where recent research has found that the decline and loss of old-growth trees is probably due to a combination of factors including root damage by feral pigs, pathogen attack and climate change.… Read full species entry >
One of 13 species of Araucaria endemic to New Caledonia where it is restricted to less than five locations. There has been a recent decline in the health of some high altitude stands.… Read full species entry >
Endemic to Tasmania where the main threats are fire, grazing of regeneration and dieback caused by Phytophthora… Read full species entry >
One of two Athrotaxis species endemic to Tasmania where historically it has suffered from fire and logging. Today, even with protection, there is a continuing decline due to fire.… Read full species entry >
A genus of a single species endemic to Argentina and Chile where it is relatively widely distribution. There has been a significant reduction in its population due to Phytophthora austrocedrae.
… Read full species entry >