Plants that complete their life cycle over two growing seasons, producing vegetative growth (leaves, stems, roots) in the first year and flowers, fruits, and seeds in the second year before dying
Common Centaury (Centaurium erythraea) forms a basal rosette of leaves in its first year, then produces pink flowers and seeds in the second year before the plant dies
A plant that does not tolerate alkaline or calcareous soils and requires acidic conditions to thrive, often developing iron deficiency symptoms in basic soils
Tree heath (Erica arborea) requires acidic soils and cannot tolerate limestone conditions
The final, stable stage of ecological succession where the plant and animal community remains relatively unchanged over time, representing the maximum complexity and diversity that environment can support
Mediterranean woodland dominated by cork oak (Quercus suber) and maritime pine (Pinus pinaster) with sclerophyllous shrub understory
A drupe is a type of fleshy fruit in which an outer fleshy part surrounds a single shell (the pit or stone) with a seed inside. Examples include olives, cherries, and peaches.
Olive trees (*Olea europaea*), common in Portugal, produce drupes known as olives, which have a fleshy exterior and a hard stone enclosing the seed.
The gradual process by which ecosystems change and develop over time, with plant and animal communities replacing one another in a predictable sequence until reaching a stable climax community
Disturbed areas progress from annual herbs to aromatic shrubland (rosemary and thyme), then to maquis scrubland, and finally to mature cork oak forests
Evolutionary and physiological adaptations that allow plants to survive and thrive in challenging soil conditions such as poor nutrients, extreme pH, shallow depth, or high salinity
Mediterranean plants like lavender and chamomile develop small, waxy leaves and deep roots to cope with shallow, alkaline limestone soils
Species that are among the first to colonise disturbed or newly formed habitats. They establish quickly in poor or bare soils, tolerate harsh environmental conditions, and create conditions that facilitate the arrival of later successional species by improving soil fertility, stabilising substrates, or providing shade and organic matter.
Cistus ladanifer (gum rockrose) and Ulex europaeus (common gorse) are pioneer species native to Portugal. They rapidly colonise open or fire-disturbed areas in Mediterranean landscapes, preparing the ground for later successional shrubs and trees.
The initial vertical and horizontal growth of plants from apical meristems, producing new shoots, leaves, and roots that increase plant height and length
Young cork oak (Quercus suber) seedlings exhibit primary growth as their shoot tips elongate upward and root tips extend into soil
Having leaves that are thickened, stiff, and leathery, usually with a reduced surface area and high lignin content. This adaptation minimizes water loss and provides resistance to heat, drought, and herbivory, and is characteristic of plants in Mediterranean and other seasonally dry climates.
The leaves of Quercus ilex (holm oak) are sclerophyllous, allowing the tree to withstand long, dry Mediterranean summers.
The process of ecological recovery that occurs in areas where vegetation has been disturbed or removed but soil and seed bank remain intact, allowing faster recolonization than primary succession
After forest fires, burned cork oak areas rapidly regenerate through sprouting and seed germination from surviving root systems and soil seed banks
