Agriculture and Forestry

Fires may be the result of natural phenomena such as lightning or they may be man-induced. Usually natural fires are an integral part of plant community development and influence such things as soil nutrient availability and biological diversity. In contrast, uncontrolled or wildfires disrupt such processes and can have a catastrophic impacts. The vast majority of wildfires are intentionally set and often occur in conifer forests. In recent years extended droughts, together with the rapidly expanding exploitation of tropical forests and the demand for the conversion of forests to other land uses, have resulted in a dramatic increase in wildfires. While some conifers have evolved to be fire dependent by having serotinous cones that open and release their seed in response to fire, their populations are so small or fragmented that even natural fires may be catastrophic. This is particularly evident in areas with a Mediterranean climate. It is the introduction of inappropriate fire regimes (frequency, severity, or seasonal timing) that can have the most severe impact.

Taxa in the category - Agriculture and Forestry:

Page 1 of 17 pages  1 2 3 >  Last ›
 world map

blob indicating China on map

Abies beshanzuensis M.H.Wu

Endemic to eastern China in Zhejiang Province where only a handful of mature individuals survive Read full species entry >

 world map

blob indicating China on map

Abies forrestii var. forrestii

A mid to high altitude fir that has previously been impacted by logging. It is assessed as Near Threatened. Read full species entry >

 world map

blob indicating Himalayas on map

blob indicating China on map

Abies forrestii var. smithii ViguiƩ & Gaussen

A high elevation species that is listed as Near Threatened due to past logging and deforestation. Read full species entry >

 world map

blob indicating Western Mediterranean on map

Abies pinsapo Boiss.

The Spanish fir has two subspecies distributed in southern Spain and northern Morocco where threats include fire, grazing and climate change. Read full species entry >

 world map

blob indicating Western Mediterranean on map

Abies pinsapo var. marocana (Trabut) Ceballos & Bolanos

The Moroccan fir is restricted to two small forests in the Rif Mountains of northern Morocco where over a period of 60 years it has suffered a 70% decline. Read full species entry >

 world map

blob indicating Western Mediterranean on map

Abies pinsapo var. pinsapo

One of two varieties of the Spanish fir restricted to three areas of southern Spain where in the last 45 years large areas of  forest have been lost mainly as a result of fire. Read full species entry >

 world map

blob indicating China on map

Abies ziyuanensis L.K. Fu & S.L. Mo

Endemic to south-east China where the present-day threats are landslides and overgrazing by sheep and cattle. Read full species entry >

 world map

blob indicating Malesiana on map

Agathis kinabaluensis de Laub.

Restricted to just two mountains in Sabah and Sarawak where there is some evidence of logging and forest clearance Read full species entry >

Page 1 of 17 pages  1 2 3 >  Last ›