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Tropical & Subtropical Grasslands, Savannas & Shrublands

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Ascension scrub and grasslands

Bioma

Tropical & Subtropical Grasslands, Savannas & Shrublands

·

Reino biogeográfico

Afrotropic

Matorral costero disperso y laderas volcánicas sobre Southeast Bay, en la isla Ascensión.

Foto de la región - Jerrye and Roy Klotz MD / Wikimedia Commons - CC BY-SA 3.0; attribution required.

Ascension scrub and grasslands

Esta ecorregión abarca la isla Ascensión, un pequeño territorio británico de ultramar de origen volcánico en el océano Atlántico ecuatorial, a unos 1.200 km al noroeste de Santa Elena y a cerca de 1.700 km del continente africano. Su cubierta natural es de pastizal y matorral secos, con pocos árboles o ninguno, y buena parte del norte y del oeste se caracteriza por un terreno árido, casi desértico, interrumpido por manchas de hierba y por la endémica lechetrezna de Ascensión (Euphorbia origanoides), la única planta endémica de las tierras bajas de la isla. El clima es subtropical y semiárido, con temperaturas que van de unos 10 a 32 grados Celsius y una escasa precipitación media anual de alrededor de 709 mm, dividida en una estación más calurosa y otra más fresca. Antes del asentamiento humano la isla solo sustentaba de 25 a 30 especies de plantas, diez de ellas endémicas, entre ellas el arbusto Oldenlandia adscensionis, el género de gramíneas Sporobolus y varios helechos endémicos como Asplenium ascensionis y Pteris adscensionis. Hoy la isla es uno de los lugares de cría de aves marinas más importantes del Atlántico tropical, hogar de la endémica fragata de Ascensión (Fregata aquila) y de una población de tortuga verde de importancia mundial, aunque el nopal y el mezquite introducidos presionan ahora sobre su escasa flora autóctona.

RESOLVE 37

Afrotropic

36 sq mi

Tropical & Subtropical Grasslands, Savannas & Shrublands

Tipo de paisaje

Tropical & Subtropical Grasslands, Savannas & Shrublands

Región vegetal

Afrotropic

Huella de la región

36 sq mi

Presión sobre el hábitat

Nature Imperiled (Dinerstein NNH 4)

Origen y cuidado

Patrocinado

Plantas nativas

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Suministros de jardinería

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Usa esto como el patrón general de plantación para la región: Pastizales y sabanas cálidos donde dominan las gramíneas y los árboles son escasos, mantenidos por lluvias estacionales, el pastoreo y el fuego. Sostienen comunidades de grandes herbívoros y responden con fuerza a los ciclos de humedad y sequía. Para las decisiones de jardín, acota según las restricciones de luz, agua, suelo y tamaño maduro de tu sitio.

°C

°F

Plantas que pueden con esta región

Plotwright aún no tiene plantas con buen ajuste climático para esta región. A medida que el catálogo crezca en esta banda climática, aparecerán sugerencias aquí.

Regiones de plantación similares

Explora otras regiones del mismo bioma. Sus listas de plantas pueden sugerir especies y combinaciones que vale la pena comparar.

Pastizal seco con cobertura leñosa dispersa en Etosha, Namibia.

RESOLVE 34 - Afrotropic

Angolan mopane woodlands

The Angolan mopane woodlands stretch across southwestern Angola and northern Namibia, running along the Owambo Basin and surrounding the salt flats of the Etosha Pan. As the name suggests, the ecoregion is dominated by the mopane tree (Colophospermum mopane), which grows as a single-stemmed tree up to about 10 meters tall or, where conditions are harsher, as a dense shrub, alongside associated Acacia, Combretum, and Commiphora species. The climate is dry, with rainfall concentrated in the summer and peaking in late summer. The woodlands shelter elephants, black and white rhinoceros, lion, and cheetah, as well as the near-endemic black-faced impala, and the wider region is anchored by protected areas including Namibia's Etosha National Park. Mopane here also has a direct human use, as the caterpillars of the mopane emperor moth are gathered locally as food.

Tropical & Subtropical Grasslands, Savannas & Shrublands

RESOLVE 35 - Afrotropic

Angolan scarp savanna and woodlands

The Angolan scarp savanna and woodlands form a long, narrow strip along the coast of Angola, running from the Atlantic shore up the steep west-facing escarpment that climbs roughly 1,000 meters to the country's central plateau. Vegetation shifts dramatically with elevation, grading from dry woodland and wooded grassland-where baobab, Strychnos, and Acacia welwitschii grow-up to humid mist and cloud forests whose canopy includes Khaya anthotheca, Bombax buonopozense, and Spathodea campanulata. The climate is tropical with summer rains; the coastal belt, cooled by the Benguela Current, stays humid but receives relatively little rain, while the escarpment is far wetter. Despite being poorly studied and only partly protected within reserves such as Quiçãma National Park, the region is rich in endemics, including the red-crested turaco and the grey-striped francolin, and is classified as Vulnerable. For gardeners, the showy African tulip tree (Spathodea campanulata), grown as an ornamental in warm climates worldwide, is native to these escarpment forests.

Tropical & Subtropical Grasslands, Savannas & Shrublands

RESOLVE 36 - Afrotropic

Angolan wet miombo woodlands

The Angolan wet miombo woodlands blanket most of the central Angolan plateau and extend north into the Democratic Republic of the Congo, sitting largely at elevations between about 1,000 and 1,500 meters. The defining habitat is miombo woodland, a moist deciduous broadleaf savanna dominated by legume trees of the family Fabaceae (subfamily Caesalpinioideae), especially the genera Brachystegia, Julbernardia, and Isoberlinia, with grassland and sandy-soil openings between the stands. The climate is tropical and notably wetter than the surrounding savanna, with rainfall strongly concentrated in the hot summer months from roughly November to March. The ecoregion is the stronghold of the giant sable antelope (Hippotragus niger variani), a critically endangered Angolan endemic protected at Cangandala National Park, and it also harbors a strict-endemic rodent, Vernay's climbing mouse. For gardeners, the signature native flora here are the canopy-forming Brachystegia and Isoberlinia legume trees that give the miombo its character.

Tropical & Subtropical Grasslands, Savannas & Shrublands

RESOLVE 38 - Afrotropic

Central bushveld

The Central Bushveld is a tropical savanna ecoregion that sweeps across northern South Africa (most of Limpopo and part of North West province), the southeast corner of Botswana, and into Zimbabwe. Its vegetation is a mosaic of grassland studded with trees and tall shrubs: vast, often monospecific stands of the winter-deciduous mopane (Colophospermum mopane), northern woodland savanna with Burkea africana and silver clusterleaf, and acacia-dominated savanna on the southern flats featuring Acacia tortilis, A. nilotica, and A. nigrescens, while the Waterberg Mountains add Terminalia sericea and Peltophorum africanum. The climate is seasonal with hot, wet summers and cool, dry winters, modest annual rainfall, and a wide temperature swing, so grasses brown off through the May-to-August dry season. The region supports rich large-mammal life, including elephant, giraffe, and the threatened black rhinoceros and cheetah, alongside Waterberg-area endemics such as Juliana's golden mole and several girdled lizards. For gardeners, several of its hardy, drought-adapted natives, including Peltophorum africanum (weeping wattle) and Terminalia sericea, are grown ornamentally for their form and resilience in dry, summer-rainfall settings.

Tropical & Subtropical Grasslands, Savannas & Shrublands

RESOLVE 39 - Afrotropic

Central Zambezian wet miombo woodlands

The Central Zambezian wet miombo woodlands sprawl across south-central Africa, covering roughly 70 percent of central and northern Zambia along with adjacent parts of Angola, Burundi, the Democratic Republic of the Congo, Malawi, Tanzania, and Mozambique. This is classic miombo country, an open woodland dominated by legume trees of the genera Brachystegia, Julbernardia, and Isoberlinia, with Pterocarpus angolensis, Albizia, and Afzelia quanzensis among the associated species and a ground layer of herbaceous Crotalaria and Indigofera. The climate is tropical and seasonal, set on a flat plateau between about 1,000 and 1,600 meters, with most rain falling in a single November-to-March wet season followed by a long dry season that can last up to seven months. It holds the highest floral richness of the African miombo ecoregions, peaking in Zambia, and supports large mammals such as African elephant, buffalo, and black rhino across major reserves like Kafue National Park. For gardeners, several of its native canopy genera, including Brachystegia and the bloodwood Pterocarpus angolensis, are valued as ornamental and shade trees in warm, frost-light climates.

Tropical & Subtropical Grasslands, Savannas & Shrublands

RESOLVE 40 - Afrotropic

Drakensberg Escarpment savanna and thicket

The Drakensberg Escarpment Savanna and Thicket stretches across the Eastern Cape and KwaZulu-Natal Provinces of South Africa, in the Afrotropic realm, threading along the river valleys that drain the Drakensberg foothills. It is a mosaic of savanna and dense, semi-succulent thicket, rich in drought-adapted genera such as Euphorbia, Crassula, Delosperma, and Aloe. The climate is seasonal and relatively dry, with most areas receiving under 800 mm of rain a year, and the region stays virtually frost-free with temperatures roughly between 12 and 26 degrees Celsius. The ecoregion is one of the most cycad-diverse places in Africa, home to endemic and near-endemic species including the Kei cycad and the Albany cycad, yet less than one percent of it is protected and it faces overgrazing, invasive plants such as Lantana camara, and illegal cycad harvesting. For gardeners in warm, low-frost climates, several of its natives, the aloes, Crassula, carpeting Delosperma, and the cycads, are familiar ornamental and succulent garden subjects.

Tropical & Subtropical Grasslands, Savannas & Shrublands

Hasta dónde llega esta ecorregión

Los países, estados de EE. UU. y provincias de Canadá que toca esta ecorregión, a partir de un cruce espacial de su polígono RESOLVE con los límites de Natural Earth.

Países

Saint Helena

Educator packet

Region packet

Ascension scrub and grasslands educator packet

Esta ecorregión abarca la isla Ascensión, un pequeño territorio británico de ultramar de origen volcánico en el océano Atlántico ecuatorial, a unos 1.200 km al noroeste de Santa Elena y a cerca de 1.700 km del continente africano. Su cubierta natural es de pastizal y matorral secos, con pocos árboles o ninguno, y buena parte del norte y del oeste se caracteriza por un terreno árido, casi desértico, interrumpido por manchas de hierba y por la endémica lechetrezna de Ascensión (Euphorbia origanoides), la única planta endémica de las tierras bajas de la isla. El clima es subtropical y semiárido, con temperaturas que van de unos 10 a 32 grados Celsius y una escasa precipitación media anual de alrededor de 709 mm, dividida en una estación más calurosa y otra más fresca. Antes del asentamiento humano la isla solo sustentaba de 25 a 30 especies de plantas, diez de ellas endémicas, entre ellas el arbusto Oldenlandia adscensionis, el género de gramíneas Sporobolus y varios helechos endémicos como Asplenium ascensionis y Pteris adscensionis. Hoy la isla es uno de los lugares de cría de aves marinas más importantes del Atlántico tropical, hogar de la endémica fragata de Ascensión (Fregata aquila) y de una población de tortuga verde de importancia mundial, aunque el nopal y el mezquite introducidos presionan ahora sobre su escasa flora autóctona.

Realm

Afrotropic

Dominant biome

Tropical & Subtropical Grasslands, Savannas & Shrublands

Approximate area

36 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.

Fuentes y citas

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Para planes de clase, artículos o notas de plantación regionales que usen esta página de Plotwright. Para citar el marco de ecorregiones subyacente o un perfil editorial específico, usa las tarjetas de fuentes de abajo.

Plotwright. (n.d.). Ascension scrub and grasslands (Ascension scrub and grasslands). Retrieved 2026, August 20, from https://plotwright.com/regions/resolve-37

Fuentes para esta región

Esta página cita primero a Plotwright por la vista compilada y luego enumera las páginas de fuentes del marco, el clima y la edición originales para que los lectores puedan citar el material original directamente.

RESOLVE 2017 Terrestrial Ecoregions (Dinerstein et al.)

Marco principal de ecorregiones

One Earth

Wikipedia

Wikimedia Foundation

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