Tillandsia stricta, illustration by Margaret Mee, Smithsonian InstitutionSave Florida's Native Bromeliads, Threats to Florida's Bromeliads
 
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Florida's Bromeliads
The Weevil Threat
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Above illustration,
"Tillandsia stricta,"
by Margaret Mee,
© Smithsonian Institution,
used with permission.
   

Many of Florida's native bromeliads have been on the state's list of threatened and endangered species for some time, because their populations are so rare and require very specific habitat conditions. Development in south Florida continues to reduce the habitat available for bromeliads, and several species are now found only on the protected lands of state and national parks. Illegal collecting has also diminished populations of some species.

Another threat has appeared more recently, one which is much more dangerous because it does not distinguish park boundaries. This newer, deadlier threat is an insect pest, a weevil that immigrated to Florida on a shipment of imported bromeliads and has spread throughout the southern portion of the state.

Already, two species of native bromeliads previously abundant in Florida have been placed on the state's list of endangered species as a direct result of attack by the Mexican bromeliad weevil (Metamasius callizona), and populations of several other species that are already listed as threatened or endangered may potentially be destroyed as the weevil continues to advance. The Save Florida's Native Bromeliads project is an attempt to stop the weevil by managing it with biological control, and to save seeds of bromeliads at risk before it is too late.


Bromeliad Species Status in Florida Status of Weevil Threat*
Catopsis berteroniana Endangered Likely
Catopsis floribunda Endangered Likely
Catopsis nutans Endangered Likely
Guzmania monostachia Endangered Likely
Tillandsia balbisiana Threatened Under attack
Tillandsia bartramii   Unlikely
Tillandsia fasciculata Endangered Under attack and listed as endangered as a result of the weevil
Tillandsia flexuosa Threatened Under attack
Tillandsia paucifolia   Under attack
Tillandsia pruinosa Endangered Likely
Tillandsia recurvata   Unlikely
Tillandsia setacea   Unlikely
Tillandsia simulata Precinctive Unlikely
Tillandsia usneoides   Unlikely
Tillandsia utriculata Endangered Under attack and listed as endangered as a result of the weevil
Tillandsia variabilis Threatened Likely
Tillandsia x smalliana (hybrid)   Under attack
Status of Florida's Native Bromeliad Species
*Likely = Likely to be attacked by the weevil if it reaches the plant's rarer habitats.
Unlikely = Unlikely to be attacked; no signs of weevil attack on the plant despite weevil presence; probably not enough plant material present in this species to support weevil development
Under attack = Currently under attack by the weevil in at least one place.