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Region profile

Nayarit and Sinaloa Plain with Low Thorn Tropical Forest

Nayarit and Sinaloa Plain with Low Tropical Thorn Forest (Planicie costera de Nayarit y Sinaloa con selva baja espinosa) is a flat subregion within the Pacific Coastal Plains that has a warm climate, experiences year-round flooding in some areas, and is characterized by mangrove swamps, low thorn tropical forest, coastal lagoons, and significant irrigation agriculture and shrimp production.

Zone

Forest

Common Name

Nayarit and Sinaloa Plain with Low Thorn Tropical Forest

CEC Level III Code

15.5.1

CEC Level II Code

15.5 Tropical Wet Forests

Overview

About This Region

The Nayarit and Sinaloa Plain with Low Thorn Tropical Forest is characterized by thornscrub vegetation, including low thorn-bearing trees, shrubs, and high diversity of succulents and cacti. This environment is crucial for native pollinators. However, these species face significant threats, including habitat loss from agricultural intensification and human development, misuse of pesticides, and the impacts of climate change, such as extreme drought and altered plant-pollinator interactions. Protecting this unique habitat is vital for pollinator health.

Region facts

At a glance

AliasesNayarit and Sinaloa Plain with Low Thorn Tropical Forest, “Nayarit–Sinaloa low thorn tropical forest”
Geographic Range
This subregion is a very flat area within the Pacific Coastal Plains of Nayarit and Sinaloa, characterized by a warm climate, intermediate precipitation, year-round flooding in some areas, the predominance of Solonchak soil, and elevations ranging from sea level to a maximum of 50 to 100 masl.
Climate SnapshotThe region has a warm climate with intermediate precipitation, and due to topographic, climatic, and soil conditions, some areas remain flooded year-round.
Terrain ProfileThe subregion is very flat, ranging from sea level up to a maximum elevation of 50 to 100 masl.
Vegetation CoverThe dominant vegetation benefits from permanent and seasonal moisture, including saltwater-condition mangroves (Rhizophora, Avicenia, Laguncularia) in permanently flooded areas, which are ecologically and economically important for aquaculture, alongside low thorn tropical forest primarily featuring Pithecellobium, Prosopis, Pisonia, and Sporobolus genuses.
Wildlife HabitatThis subregion has diverse, Neotropical wildlife, including 543 reported vertebrate species with at least 60 in danger of extinction and 51 endemic species, such as the jaguar, American crocodile, and military macaw.

Eco snapshot

What shapes this region

Climate pattern

  • Often warm conditions with a seasonal rhythm of wetter and drier periods.
  • Bloom timing can be highly site-dependent, especially near rivers, irrigated areas, or coastal zones.
  • Microclimates (small local weather differences) can change what thrives even within the same neighborhood.

Vegetation profile

The dominant vegetation benefits from permanent and seasonal moisture, including saltwater-condition mangroves (Rhizophora, Avicenia, Laguncularia) in permanently flooded areas, which are ecologically and economically important for aquaculture, alongside low thorn tropical forest primarily featuring Pithecellobium, Prosopis, Pisonia, and Sporobolus genuses.

Wildlife profile

This subregion has diverse, Neotropical wildlife, including 543 reported vertebrate species with at least 60 in danger of extinction and 51 endemic species, such as the jaguar, American crocodile, and military macaw.

Why pollinators matter here

  • Pollinators support fruit set and seed production for many wild and cultivated plants.
  • Seasonal dry periods can create “nectar gaps,” making well-timed blooms especially valuable.
  • Diverse flowering plants help support a wider range of pollinator species and life stages.
  • Pesticide exposure and habitat simplification can reduce pollinator survival and reproduction.

Seasonal timing

Planting seasons

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

Seasonal timing

  • Early wet season: Often a good window for planting so roots establish with natural moisture.
  • Mid wet season: Good for filling gaps and adding heat-tolerant bloomers.
  • Transition to dry season: Focus on mulching, deep watering (if used), and adding shelter/nesting features.
  • Dry season: Prioritize maintenance, water-wise care, and planning/seed-starting where appropriate.

Quick seasonal checklist

  • Add at least 3 different flower shapes (tubes, clusters, daisies) to serve different pollinators.
  • Aim for overlapping bloom times (no long “empty” weeks).
  • Keep a small patch of bare, well-drained soil for ground-nesting bees.
  • Use mulch thoughtfully—leave some soil exposed in sunny, quiet spots.

Yearly needs

Pollinator calendar

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

Late winter / early springDetails coming soonDetails coming soon
SpringDetails coming soonDetails coming soon
SummerDetails coming soonDetails coming soon
Late summer / fallDetails coming soonDetails coming soon
Winter or dry seasonDetails coming soonDetails coming soon

Seed mix concept

A Billion Small Steps Seed mix

A simple way to plan a pollinator patch is to think in three layers so something is blooming through changing conditions:

Spring starter

Spring starter: early bloomers that kick off the season and help pollinators rebuild energy.

Summer bridge

Summer bridge: heat-tolerant, drought-aware flowers that keep nectar/pollen available through the toughest stretch.

Fall finisher

Fall finisher: late bloomers that help pollinators store energy and complete life cycles before the harsh season.

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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