Dibeen Forest

Dibeen Forest Reserve protects approximately 8.5 square kilometres of one of the last remnants of the natural Aleppo pine (Pinus halepensis) forest that historically covered the Jordan Highlands. Located in Jerash Governorate, northern Jordan, the reserve was established by the Royal Society for the Conservation of Nature (RSCN) in 2004. The forest sits at elevations of 700–900 m on the limestone highlands northeast of Amman. As one of Jordan's smallest protected areas, Dibeen's ecological significance is disproportionate to its size: it represents a forest ecosystem type that has been reduced to scattered remnants across the country and provides critical habitat for the critically endangered Persian squirrel—one of Jordan's rarest mammals.

Dibeen's most significant wildlife resident is the Persian squirrel (Sciurus anomalus), which is classified as critically endangered in Jordan and is found at very few locations in the country. The squirrel depends on the pine cones and seeds that the Aleppo pine forest provides. Wild boar are present and can be seen foraging beneath the trees. Stone martens and red foxes inhabit the forest. The birdlife of the reserve is varied and includes the Syrian woodpecker, short-toed treecreeper, and various woodland warblers. The forest edges and adjacent agricultural land provide habitat for numerous additional species. The reserve's proximity to human settlement means that many species are wary, but dedicated observation yields good sightings.

The dominant tree is Aleppo pine (Pinus halepensis), which forms the characteristic open woodland of the Jordanian highlands—though the trees at Dibeen are among the finest surviving specimens in Jordan. The understorey includes Palestine oak, Kermes oak, and shrubby species characteristic of Mediterranean garrigue: rockroses (Cistus), rosemary-leaved lavender, and asphodel. Wild cyclamen (Cyclamen persicum) carpets the forest floor in early spring. Orchids are present in the understorey. The reserve also contains stands of carob and strawberry tree (Arbutus andrachne), adding to the Mediterranean character. Spring wildflowers include anemones, tulips (wild Tulipa species), and numerous bulbous plants.

Dibeen Forest sits on the Ajloun Dome—an anticlinal structure in the Jordanian Highland limestone sequence. The rock is Cretaceous limestone (Ajloun Group), weathered to the characteristic terra rossa red soils of the Mediterranean highland zone. The highland plateau drops away dramatically to the Jordan Valley on the west via deeply incised wadis. The limestone is fractured and permeable, creating a system of springs at the base of the highland escarpment that have supported agriculture and settlement for millennia. Flint nodules occur in the limestone and were used by prehistoric communities for tool-making; archaeological sites from the Neolithic and Bronze Age are found throughout the region.

Dibeen has a Mediterranean highland climate, with wet winters and dry summers. Annual rainfall of approximately 500–600 mm falls almost entirely between November and April; summers are completely dry from May through October. Winter temperatures average 5–10°C with occasional frost and rare snowfall. Summer temperatures are warm (25–30°C) but moderated by the elevation and forest shade. Spring is the most visually spectacular season, with the forest floor in flower and migratory birds passing through. The climate is somewhat cooler and wetter than the valleys below, creating conditions favourable for the pine forest. The reserve's microclimate differs markedly from the arid lowlands just 20 km to the east.

The Aleppo pine forests of the Jordanian highlands were once far more extensive; they were cleared through centuries of charcoal production, cultivation, and overgrazing. The Dibeen forest survived partly because it was managed as a restricted forest during the Ottoman period and later by the Jordanian government. The nearby city of Jerash (Gerasa)—one of the ancient world's best-preserved Roman cities and a major tourist destination—demonstrates the long history of human civilisation in this region. Charcoal production from pine forest continued into the 20th century until regulations were strengthened. Local communities have traditional knowledge of the forest's medicinal plants and wild products.

Dibeen was designated a forest reserve by the Jordan Forest Department long before the RSCN's involvement, reflecting recognition of the irreplaceable character of the remaining pine stands. The RSCN assumed management responsibility in 2004 and has developed ecotourism facilities and community engagement programmes. Conservation activities have focused on reducing grazing pressure on the forest understory and expanding native vegetation cover. The Persian squirrel population has been monitored since RSCN's involvement. The reserve is part of the RSCN's programme to protect Jordan's highland forest remnants; together with Ajloun Forest Reserve and smaller patches, Dibeen contributes to a fragmented network of highland woodland conservation.

Dibeen's trail system, while modest, provides pleasant woodland walking through the pine forest and adjacent scrubland. The main forest trail loops through the best pine stands and offers opportunities for birdwatching and, with patience, squirrel observation. The RSCN visitor centre provides information about the forest ecosystem and its conservation status. Spring visits offer excellent wildflower viewing. The reserve is typically combined with a visit to the Roman city of Jerash (10 km away), one of Jordan's top archaeological sites. Birdwatching is productive particularly in the morning hours, with the forest supporting a good diversity of resident and migrant passerines.

Dibeen is approximately 40 km north of Amman and can be reached in about 45 minutes by car. Public buses connect Amman to Jerash town, from which taxis or private transport can reach the reserve. The RSCN maintains a visitor centre and marked trails. No accommodation is available within or immediately adjacent to the reserve; most visitors come as a day trip from Amman or combine it with a stay in Jerash. The reserve is open year-round. Entry fees are modest. The best seasons are spring (February–May) and autumn (September–November). Summer is warm but the pine shade makes midday visits tolerable. Winter visits after rainfall when the forest is at its freshest are also rewarding.

Dibeen faces the challenge of managing a very small and isolated forest fragment within a highly modified agricultural landscape. The forest's isolation limits natural recolonisation from other pine forest areas. Overgrazing from sheep and goats in adjacent land causes damage to pine seedlings, preventing forest regeneration and expansion. The RSCN has established exclosure areas to demonstrate the potential for natural regeneration when grazing is excluded. Climate projections for Jordan suggest increased drought stress for Aleppo pine at the southern edge of its range—which Jordan represents—potentially threatening the forest's long-term viability. Community engagement focuses on educating adjacent landowners about the value of the forest for water retention and wildlife. Voluntary agreements with nearby communities limit grazing in the reserve buffer zone.