Isthmian-Pacific moist forests

The Isthmian-Pacific moist forests is a tropical and subtropical moist broadleaf forests ecoregion located in the Neotropic biogeographic realm, covering Central and South America, the Caribbean, and southern portions of Mexico, spanning approximately 29,176 km². Classified under the WWF ecoregion code NT0130, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences warm year-round with high annual rainfall, typically exceeding 2,000 mm. The dominant vegetation consists of dense, multi-layered canopy of broadleaf evergreen trees. These conditions create the foundation for the ecological communities found within the Isthmian-Pacific moist forests.

Ecological Significance

These forests are the most biodiverse terrestrial ecosystems on Earth, hosting an extraordinary density of plant and animal species per unit area. Epiphytes, lianas, and a rich understorey characterise the complex vertical structure. The Isthmian-Pacific moist forests contributes to the broader biodiversity patterns of the Neotropic realm.

Geographic Distribution

The Isthmian-Pacific moist forests extends across Costa Rica and Panama. This geographic range places it within the Neotropic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Isthmian-Pacific moist forests supports a range of wildlife, including African bristlegrass (Setaria sphacelata), African senna (Senna didymobotrya), Alexandrian laurel (Calophyllum inophyllum), Allspice (Pimenta dioica), Angel's-trumpet (Brugmansia candida), Annual Knawel (Scleranthus annuus), Antelope Grass (Echinochloa pyramidalis), Antillean Coqui (Eleutherodactylus antillensis), and 42 more species.

Conservation

Like many tropical and subtropical moist broadleaf forests ecosystems, the Isthmian-Pacific moist forests faces threats from deforestation, agricultural expansion, logging, and climate change. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.