›

Tropical & Subtropical Dry Broadleaf Forests

›

Marianas tropical dry forests

Biome

Tropical & Subtropical Dry Broadleaf Forests

·

Règne biogéographique

Oceania

Herbe et broussailles basses sous les falaises calcaires du mont Marpi, Saipan.

Photo de la région - Abasaa / Wikimedia Commons - Public domain.

Marianas tropical dry forests

Les forêts sèches tropicales des Mariannes s'étendent sur Guam et les îles Mariannes du Nord, deux juridictions des États-Unis alignées le long d'un arc d'environ 900 kilomètres dans l'ouest de l'océan Pacifique. Le relief mêle de jeunes îles volcaniques au nord à des îles méridionales plus anciennes formées de roche volcanique et de calcaire marin soulevé, dont Guam, coiffée de calcaire. La végétation va des peuplements côtiers de filao (Casuarina equisetifolia), de Pisonia grandis, de pandanus et de la fougère Nephrolepis hirsutula aux forêts calcaires d'arbre à pain indigène (Artocarpus mariannensis), du figuier banian Ficus prolixa et de Cordia subcordata, avec des forêts de feuillus sur sols volcaniques dominées par Aglaia mariannensis et Elaeocarpus joga. Le climat est chaud et fortement saisonnier, avec des précipitations annuelles d'environ 2 000 à 2 500 millimètres et une saison humide s'étendant de juillet à octobre, tandis que de fréquents et violents typhons façonnent une structure forestière dense et chargée de lianes comptant peu d'arbres émergents. Les îles abritent une faune endémique comme le ptilope des Mariannes, emblématique, et la roussette des Mariannes, bien que les espèces envahissantes, surtout le serpent brun arboricole, tenu pour responsable des extinctions d'oiseaux indigènes à Guam, demeurent la principale menace pour la conservation.

RESOLVE 637

Oceania

400 sq mi

Tropical & Subtropical Dry Broadleaf Forests

Type de paysage

Tropical & Subtropical Dry Broadleaf Forests

Région végétale

Oceania

Empreinte de la région

400 sq mi

Pression sur l'habitat

Nature Could Reach Half Protected (Dinerstein NNH 2)

Sourcing et entretien

Sponsorisé

Plantes indigènes

Achetez la sélection de plantes indigènes d'une pépinière.

Trouver des plantes indigènes chez Burpee ->

Fournitures de jardinage

Terreau, paillis, engrais et outils pour les planter et les entretenir.

Trouver des fournitures chez Amazon ->

Plotwright peut percevoir une commission sur les achats effectués via ces liens, sans coût supplémentaire pour vous.

Utilisez ceci comme schéma général de plantation pour la région : Forêts tropicales traversant une saison sèche prononcée, au cours de laquelle de nombreux arbres perdent leurs feuilles pour économiser l’eau. Elles abritent une grande biodiversité mais comptent parmi les habitats tropicaux les plus menacés, sensibles au feu et au défrichement pour l’agriculture. Pour vos décisions de jardin, affinez selon les contraintes de lumière, d'eau, de sol et de taille adulte de votre site.

°C

°F

Plantes adaptées à cette région

Plotwright n'a pas encore de plantes adaptées au climat pour cette région. À mesure que le catalogue s'étend à cette bande climatique, des suggestions apparaîtront ici.

Régions de plantation similaires

Parcourez d'autres régions du même biome. Leurs listes de plantes peuvent suggérer des espèces et des associations à comparer.

Forêt tropicale sèche des Fidji et versants de hautes terres près du mont Batilamu.

RESOLVE 635 - Oceania

Fiji tropical dry forests

The Fiji tropical dry forests occupy the leeward, northwestern lowlands of Viti Levu and Vanua Levu, the two largest islands of Fiji, extending onto smaller islands in the Yasawa and Lau groups. Their canopy is typically dominated by Dacrydium nidulum and Fagraea gracilipes, with Garuga floribunda and Gyrocarpus americanus prevailing in the driest sites, alongside the cycad Cycas seemannii and the endemic sandalwood Santalum yasi. Sitting in the rain shadow of the islands' central mountains, the climate is tropical and strongly seasonal, with most rain falling between December and April and a long dry season that gives the trees a shorter, gnarled, vine-draped character; tropical cyclones occasionally strike from November to April. These are among the most endangered forests in the Pacific, with much of the original cover long ago burned and cleared into sparse grass-fern talasiga savanna, leaving only a small fraction protected. The ecoregion is the flagship habitat of the Fiji crested iguana and supports a flora that is overwhelmingly endemic to the archipelago. For gardeners, the native sandalwood Santalum yasi is a notable regional genus prized for its fragrant heartwood.

Tropical & Subtropical Dry Broadleaf Forests

RESOLVE 636 - Oceania

Hawai'i tropical dry forests

The Hawaiʻi tropical dry forests cover the leeward, rain-shadowed sides of the main Hawaiian Islands, along with the summits of Niʻihau and Kahoʻolawe, where the central ranges and large volcanoes strip moisture from the trade winds before it reaches the lowlands and foothills. These dry broadleaf forests are built around drought-adapted native trees including koa and koaiʻa (Acacia), ʻōhiʻa lehua (Metrosideros polymorpha), māmane (Sophora chrysophylla), lama (Diospyros sandwicensis), wiliwili (Erythrina sandwicensis), loulu fan palms (Pritchardia), and the sandalwoods or ʻiliahi (Santalum). The climate is markedly seasonal, with a long dry season and rainfall that is low for the tropics, ranging from roughly 25 to 125 centimeters a year. Despite their modest extent, these forests are botanically rich, holding about 22 percent of Hawaiʻi's native flora with most of those taxa found nowhere else, and they shelter the palila, a Hawaiian honeycreeper restricted to māmane-dominated dry forest. They rank among the most endangered ecoregions on Earth, with only an estimated 5 to 8 percent of natural habitat remaining. For gardeners, several of these natives such as wiliwili and the loulu palms are grown ornamentally in dry, sunny landscapes.

Tropical & Subtropical Dry Broadleaf Forests

RESOLVE 638 - Oceania

Yap tropical dry forests

The Yap tropical dry forests cover the Yap Islands and neighboring atolls in Yap State of the Federated States of Micronesia, a low, gently sloping island group lying roughly 450 km northeast of Palau in the western Caroline Islands. Original vegetation was a mosaic of upland broadleaf forest, upland savanna, freshwater swamps, and mangroves, with canopy genera such as Celtis, Terminalia, Trichospermum, Garcinia, and Pouteria. The climate is tropical with little seasonal temperature variation but strongly seasonal rainfall, marked by a distinct dry season from January through March and heavy rains from roughly May through November, and strong typhoons occur regularly. Despite their small size the islands hold notable endemism, including the Yap monarch and Yap olive white-eye among the birds, the Yap flying-fox, and endemic plants such as Drypetes yapensis and Trichospermum ikutai, yet long human settlement has left the forests heavily degraded and the ecoregion has no legally protected areas. For gardeners, the native understory includes familiar ornamental genera such as Hibiscus and Ixora, alongside the widely planted tropical-almond tree Terminalia catappa.

Tropical & Subtropical Dry Broadleaf Forests

RESOLVE 520 - Neotropic

Apure-Villavicencio dry forests

The Apure-Villavicencio dry forests stretch along the eastern foot of the Andes' eastern cordillera, spanning the Venezuelan states of Portuguesa, Barinas and Apure and the Colombian departments of Arauca, Casanare and Meta. This is a transitional ecoregion, a patchwork of premontane, gallery and deciduous dry forest grading into savanna where the Andean montane forests give way to the lowland Llanos grasslands. Characteristic woody plants include mesquite (Prosopis juliflora), palo verde (Cercidium praecox), kapok (Ceiba pentandra), yellow mombin (Spondias mombin), and palms such as the moriche (Mauritia flexuosa) and macaúba (Acrocomia aculeata). Its climate is equatorial with a pronounced dry winter (Köppen Aw), with temperatures ranging from about 19 to 33 degrees Celsius. The forests have been severely degraded by deforestation, farming and ranching, leaving poorly protected remnants that the World Wildlife Fund rates as Vulnerable, yet they still shelter the giant anteater, Geoffroy's spider monkey, and the flagship Colombian four-eyed frog. Gardeners may recognize several natives here as ornamentals, including the stately kapok tree and the moriche and macaúba palms.

Tropical & Subtropical Dry Broadleaf Forests

RESOLVE 521 - Neotropic

Bajío dry forests

The Bajío dry forests cover the southwestern Mexican Plateau in west-central Mexico, spanning the states of Jalisco, Guanajuato, and Michoacán across the Lerma River basin and the lake country around Chapala, Cuitzeo, and Pátzcuaro. Set in valleys between roughly 1,000 and 2,000 meters on shallow, rocky, well-drained volcanic and limestone soils, the region was historically dry deciduous forest whose characteristic trees included copal, pochote, palo amarillo, and mauto, with thorn-scrub communities of mesquite and huamúchil. The climate is tropical subhumid, with annual rainfall around 500 to 930 millimeters and a pronounced dry season that can last up to eight months. This is one of Mexico's most developed and densely populated landscapes, and centuries of agriculture and grazing have reduced the forest to small pockets now dominated by thorn scrub and subtropical matorral, leaving the ecoregion classed as critical or endangered with only about 7.5 percent in protected areas. Gardeners working in comparably dry, seasonal climates may recognize natives of this region in drought-adapted, deciduous trees such as mesquite and copal.

Tropical & Subtropical Dry Broadleaf Forests

RESOLVE 522 - Neotropic

Balsas dry forests

The Balsas dry forests occupy the basin of the Balsas River in western and central Mexico, spreading across the states of Michoacan, Guerrero, Morelos, Mexico, Puebla, and Oaxaca. This tropical dry broadleaf ecoregion is a deciduous and thorn forest dominated by Bursera trees, alongside the legume Haematoxylum brasiletto and abundant columnar cacti such as Pachycereus and Cephalocereus. The climate is tropical and subhumid, with seasonal rainfall and a severe dry season that can last up to eight months. The forests are a renowned center of plant endemism and speciation, especially for Bursera, with roughly half of the region's Bursera species found nowhere else, and they shelter the near-endemic Balsas screech-owl, though only about a tenth of the ecoregion lies within protected areas. For drought-tolerant or xeric plantings, the native Bursera (the source of copal incense) and the dyewood Haematoxylum brasiletto are ornamental genera that evolved here.

Tropical & Subtropical Dry Broadleaf Forests

Jusqu’où s’étend cette écorégion

Les pays, États américains et provinces canadiennes que touche cette écorégion, d’après un croisement spatial de son polygone RESOLVE avec les limites de Natural Earth.

Pays

Guam Northern Mariana Islands

Educator packet

Region packet

Marianas tropical dry forests educator packet

Les forêts sèches tropicales des Mariannes s'étendent sur Guam et les îles Mariannes du Nord, deux juridictions des États-Unis alignées le long d'un arc d'environ 900 kilomètres dans l'ouest de l'océan Pacifique. Le relief mêle de jeunes îles volcaniques au nord à des îles méridionales plus anciennes formées de roche volcanique et de calcaire marin soulevé, dont Guam, coiffée de calcaire. La végétation va des peuplements côtiers de filao (Casuarina equisetifolia), de Pisonia grandis, de pandanus et de la fougère Nephrolepis hirsutula aux forêts calcaires d'arbre à pain indigène (Artocarpus mariannensis), du figuier banian Ficus prolixa et de Cordia subcordata, avec des forêts de feuillus sur sols volcaniques dominées par Aglaia mariannensis et Elaeocarpus joga. Le climat est chaud et fortement saisonnier, avec des précipitations annuelles d'environ 2 000 à 2 500 millimètres et une saison humide s'étendant de juillet à octobre, tandis que de fréquents et violents typhons façonnent une structure forestière dense et chargée de lianes comptant peu d'arbres émergents. Les îles abritent une faune endémique comme le ptilope des Mariannes, emblématique, et la roussette des Mariannes, bien que les espèces envahissantes, surtout le serpent brun arboricole, tenu pour responsable des extinctions d'oiseaux indigènes à Guam, demeurent la principale menace pour la conservation.

Realm

Oceania

Dominant biome

Tropical & Subtropical Dry Broadleaf Forests

Approximate area

400 square miles

States / provinces

Not recorded

Climate descriptor

Not recorded

Classroom prompts

- Which climate and biome facts explain why this region supports its characteristic plants?

- How do native-plant and wildlife-support claims differ from a species-presence claim?

- Which source-backed facts would you cite before using this region in a classroom map activity?

Use the Sources & citations section below for page citation styles and region source links.

Sources et citations

Citer cette page

Pour les plans de cours, articles ou notes de plantation régionales qui utilisent cette page Plotwright. Pour citer le cadre d'écorégions sous-jacent ou un profil éditorial spécifique, utilisez les fiches de sources ci-dessous.

Plotwright. (n.d.). Marianas tropical dry forests (Marianas tropical dry forests). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-637

Sources pour cette région

Cette page cite d'abord Plotwright pour la vue compilée, puis répertorie les pages sources du cadre, du climat et de l'éditorial en amont afin que les lecteurs puissent citer directement le matériel d'origine.

RESOLVE 2017 Terrestrial Ecoregions (Dinerstein et al.)

Cadre principal des écorégions

One Earth

Wikipedia

Wikimedia Foundation

Ouvrir la source

Guide des sources