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Region profile

Plain with Low and Medium Deciduous Tropical Forest

Plain with Low and Medium-high Tropical Deciduous Forest (Planicie con selvas baja y mediana subcaducifolias) is a sub-humid and warm subregion on the Yucatán peninsula, characterized by rocky plains with deteriorated semi-evergreen, semi-deciduous, and deciduous forests, a lack of perennial surface water, and a homogenous geology of limestone layers.

Zone

Prairie

Common Name

Plain with Low and Medium Deciduous Tropical Forest

CEC Level III Code

15.2.1

CEC Level II Code

15.2 Tropical Wet Forests

Overview

About This Region

This region features plains and low-to-medium deciduous tropical forest, characterized by seasonal dryness. Pollinator health is heavily influenced by deforestation for agriculture and cattle ranching, leading to habitat fragmentation and loss of essential native flora. Pesticide use and climate variability, altering blooming times and resource availability, also pose significant threats to local pollinator species like bees and butterflies. Conservation efforts focus on maintaining habitat connectivity and promoting sustainable land management practices.

Region facts

At a glance

AliasesPlain with Low and Medium Deciduous Tropical Forest
Geographic Range
This subregion is located on the Yucatán peninsula, encompassing parts of the states of Yucatán and Campeche.
Climate SnapshotThe climate is sub-humid and warm, with mean annual temperatures between 24 and 26°C and average precipitation of 500 to 600 mm, making the subregion generally dry.
Terrain ProfileThe subregion is characterized by relatively flat relief consisting of rocky plains with shallow hollows and low hills, with a small, faulted sierra located centrally.
Vegetation CoverThe subregion is characterized by largely deteriorated semi-evergreen, semi-deciduous, and deciduous forests of medium and low height, threatened by cultivated grasslands and agricultural areas.
Wildlife HabitatThis subregion is home to numerous bird species, including the greater flamingo and Yucatán wren, as well as mammals like the spider monkey and jaguar, and reptiles such as the American and Morelet's crocodiles.

Eco snapshot

What shapes this region

Climate pattern

  • Typically a strong wet–dry seasonal pattern that affects flowering and insect life cycles.
  • Microclimates (small local weather differences) are common near water, in shade, and along forest edges.
  • Storms and dry spells can shift bloom timing from year to year.

Vegetation profile

The subregion is characterized by largely deteriorated semi-evergreen, semi-deciduous, and deciduous forests of medium and low height, threatened by cultivated grasslands and agricultural areas.

Wildlife profile

This subregion is home to numerous bird species, including the greater flamingo and Yucatán wren, as well as mammals like the spider monkey and jaguar, and reptiles such as the American and Morelet’s crocodiles.

Why pollinators matter here

  • Many flowering trees, shrubs, and vines rely on insects for fruit and seed set.
  • Pollinators help support food webs (fruit for birds and mammals) and forest regeneration.
  • Long dry periods can create “nectar gaps,” so staggered flowering is especially helpful.
  • Habitat fragmentation can reduce nesting sites and safe movement corridors.

Seasonal timing

Planting seasons

Timing varies by microclimate; use this as a flexible guide.

Seasonal timing

  • Early wet season: often a good time to establish plants so roots can grow with reliable moisture.
  • Mid wet season: focus on maintaining blooms and adding “bridge” plants for continuous nectar/pollen.
  • Late wet season into early dry season: prioritize drought-tolerant natives and mulch/groundcover to protect soil.
  • Dry season: focus on survival (watering young plants if needed), and protect nesting/shelter habitat.

Quick seasonal checklist

  • Add at least 2–3 different flower shapes (tubes, clusters, open daisies) to serve different pollinators.
  • Keep something blooming in each main season (wet-season peak plus dry-season support where possible).
  • Leave some leaf litter/brush and a bit of bare ground for nesting.
  • Avoid pesticides—especially during bloom.

Yearly needs

Pollinator calendar

What pollinators need throughout the year, and what to do about it.

Late winter/early springEarly nectar/pollen and safe shelter as activity ramps upPlant or protect early-blooming natives; keep some leaf litter and undisturbed corners
SpringSteady bloom and nesting materials/sitesAdd a mix of flowering shrubs and ground-layer flowers; provide shallow water (pebbles in a dish)
SummerContinuous nectar/pollen, shade, and water during heatPlant heat-tolerant bloomers; add mulch/groundcover; keep water available
Late summer/fall“Bridge” blooms to prevent gaps; places to raise youngAdd late-blooming natives; avoid heavy pruning during peak flowering
Winter or Dry SeasonSurvival resources: any available blooms, shelter, and nesting protectionPrioritize drought-tolerant native plants; reduce mowing/clearing; protect dead stems/brush piles until conditions improve

Seed mix concept

A Billion Small Steps Seed mix

In a wet–dry tropical pattern, a practical seed-mix idea is to plan for three roles so flowers don’t “drop out” when conditions change:

Spring starter

Spring starter (early wet season): fast-establishing native flowers that begin blooming soon after rains begin.

Summer bridge

Summer bridge (wet-season peak): reliable bloomers that keep nectar/pollen steady when growth is lush.

Fall finisher

Fall finisher (late wet season into dry season): tougher, drought-tolerant natives that extend bloom and support pollinators as conditions dry.

What You Can Do

Make a difference for native habitats.

Turn this knowledge into action. Whether you plant a single pot or a whole garden, you are building a vital bridge for local biodiversity.

Join the movement to restore our shared habitats.

Native plants

Plants that thrive in this region

Agaves (*Agave* (genus))

Agaves

Agaves are bold, sculptural succulents that store water in thick leaves and thrive in bright, dry spots. Their flowers can be a big seasonal draw for pollinators when plants are mature and in bloom.

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Erythrinas

Erythrinas (coral trees) are showy flowering trees in the genus Erythrina, known for bold, nectar-rich blooms that can be a seasonal food stop for pollinators in warm gardens.

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Inga (*Inga* (genus))

Inga

Inga is a group of tropical trees (genus Inga) known for fluffy, brush-like flowers and long pods. In warm climates, it can be a shade tree that also offers nectar and pollen for a variety of insects.

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Milkweeds (*Asclepias* spp.)

Milkweeds

Milkweeds from tropical Mexico (genus Asclepias) are nectar-rich wildflowers that can add bright blooms and pollinator activity to sunny gardens and containers.

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Passionflowers (*Passiflora* spp.)

Passionflowers

Passionflowers (genus Passiflora) are climbing vines known for their intricate, otherworldly blooms and their ability to add vertical color to fences, trellises, and sunny walls.

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Salvias (Mexico diversity) (Salvia spp.)

Salvias

Salvias are a big, colorful group of flowering plants in the genus Salvia, with especially rich diversity in Mexico. Many are easy, pollinator-friendly garden plants that bloom over a long season when given sun and well-drained soil.

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Wild lilacs (*Calliandra* spp.)

Wild lilacs

Wild lilacs (genus Calliandra) are warm-climate shrubs known for fluffy “powderpuff” blooms that can add color and pollinator activity to sunny gardens and patios.

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Pollinators

Pollinators active in this region

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Flower flies / hoverflies

Adults visit flowers for nectar and pollen, and many species’ larvae help keep plant-eating pests in check.

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Hawk / sphinx moths (Family Sphingidae)

Hawk / sphinx moths

They can move pollen between flowers while feeding on nectar, especially for blooms that open or scent up in the evening.

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Hummingbirds (Family Trochilidae)

Hummingbirds

They move pollen between flowers while feeding, helping many plants reproduce.

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Long-nosed bats (Genus Leptonycteris)

Long-nosed bats

They move pollen between flowers over long distances, helping some plants set fruit and seed.

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Nectar-feeding bats (Subfamily Glossophaginae)

Nectar-feeding bats

They move pollen between flowers over long distances and help many plants set fruit and seed.

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Stingless bees (Mexico / tropics) (Tribe Meliponini)

Stingless bees (Mexico / tropics)

They help pollinate many wild and cultivated plants in tropical and subtropical regions, supporting food webs and biodiversity.

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