FW-6

Preserve the diversity and abundance of bay wildlife

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OBJECTIVES:

An umbrella action to protect important fish and wildlife populations in the bay watershed, specifically by supporting research; habitat protection and restoration, compliance with laws to protect fish and wildlife; and education initiatives that foster species diversity and abundance. Support research, management and education to protect listed species and other important wildlife populations in the Tampa Bay watershed. Implement the Bay Habitats Action Plan to achieve targets and goals for critical fish and wildlife habitats. Continue and expand scientific and community-based wildlife monitoring programs. Give priority consideration to TBEP Bay Mini-Grant projects that address listed and potentially imperiled species. Identify species about which more data is needed to assess status.

STATUS:

Ongoing. Action expanded to address a variety of threats to fish and wildlife, including climate change. Revised action specifically addresses colonial waterbirds and beach-nesting shorebirds. Strategy encourages support for research, management and monitoring of listed, threatened and endangered species, as well as unlisted species for which information gaps exist.

BACKGROUND:

The Tampa Bay Area supports more than 40 species listed as Threatened or Endangered by the United States Fish and Wildlife Service (USFWS) or listed as Threatened or Species of Special Concern by the Florida Fish and Wildlife Conservation Commission (FWC). They inhabit a wide variety of habitats from the bay proper to its mangrove islands, rivers, tidal streams, marshes, freshwater wetlands, sandy beaches and upland forests. Many species require different habitats at various life stages.

A Great Egret in spectacular courtship display. Egrets, herons, ibis and other wading birds nest in colonies on mangrove islands in Tampa Bay. SOURCE: Gerold Morrison

Many of the bay’s most visible and beloved species are well-documented. For example, Audubon first began protecting and monitoring colonial waterbird populations in 1934; Audubon staff currently manage and assess 30 nesting colonies on islands in and around Tampa Bay. Sea turtle nests on bay area beaches and barrier islands are surveyed and safeguarded annually. In 2016, 1595 loggerhead turtle nests were confirmed. Green and leatherback turtle nests are very rare on Tampa Bay area beaches. Research has shown that the bay itself is an important nursery area for juvenile Kemp’s ridley sea turtles, one of the world’s most endangered species.

Loggerhead Turtle Nesting 2018-2022 on beaches of Tampa Bay. SOURCE: FWC

County

2018

2019

2020

2021

2022

Manatee

1,003

1,158

930

1,089

1,165

Hillsborough

151

152

96

137

120

Pinellas

549

807

528

497

686

Totals

1,703

2,117

1,554

1,723

1,971

The status of many other species is unclear, and basic population assessments are lacking. For example, little is known about diamondback terrapin populations in Tampa Bay because the animals are shy, reclusive and difficult to study.

Protecting and enhancing fish and wildlife populations requires a combination of management and educational strategies, including habitat protection and restoration, assessment and monitoring, enactment and enforcement of laws that protect vulnerable species, and education of citizens and visitors. These overall strategies ideally take into account multiple threats to the long-term health of the bay’s fish and wildlife:

  • Habitat loss or degradation
  • Competition from invasive species
  • Overharvesting
  • Pollution
  • Natural disasters, such as hurricanes
  • Climate change, including increased air and water temperatures, sea level rise, changes in precipitation and ocean acidification

Protecting and restoring key habitats, including priority nesting and nursery areas, seasonal refuges and critical travel or migration pathways, is a fundamental basis for sustaining diverse and abundant fish and wildlife populations. Restoration activities that create habitat mosaics of functional ecosystems will prove more resilient in the future (See Actions BH-1 and CC-1).

The Richard T. Paul Alafia Bird Sanctuary is among the nation’s most important nesting areas for colonial waterbirds such as the roseate spoonbill. SOURCE: Florida Audubon

Tidal streams are nursery areas for fish. More than 100 tidal streams flow to the bay from major rivers to tiny creeks a person could jump across. Many begin in the far reaches of the watershed. These streams are vitally important to foraging birds and juvenile fish, including snook. Researchers are working to identify tidal stream habitat features most favored by juvenile snook, and to test management techniques. Protecting and restoring tidal streams is expected to bolster the bay’s snook populations, which support a recreational fishery that generates more than $1 million in annual revenues (see Action BH-9).

Beaches are vital for shorebirds. More than 45,000 pairs of beach-nesting birds, such as the snowy plover, American oystercatcher, black skimmer, laughing gull and least tern, lay their eggs and raise their young on area beaches. Fragmentation, degradation and erosion of suitable beach nesting habitat, and increased disturbance by recreational beachgoers, threaten the continued existence of these charismatic birds. FWC, Audubon Florida, and Eckerd College staff work with land managers to protect critical nesting areas at Egmont Key National Wildlife Refuge and Shell Key County Preserve. Volunteer “Bird Stewards” attend to vulnerable beach nesting colony sites on busy weekends, educating beachgoers about the need to steer clear of shorebird colonies.

Enforcement is also needed in critical nesting areas. People and their pets can trample nests and cause parent birds to take flight, leaving eggs or hatchlings vulnerable to predators and hot summer temperatures.

Beach renourishment, where and when appropriate, can help to maintain existing nest sites and create additional habitats. Man-made spoil islands used for disposal of material dredged from the bay bottom can serve a similar benefit (see Actions DR-1 and DR-2).

Mangrove islands support colonial waterbirds. Bay mangrove islands support some of the most diverse waterbird nesting colonies in North America, annually hosting approximately 40,000 to 50,000 breeding pairs at nearly 30 estuary island sites and another 10 inland colony sites within the watershed. Some 23 species nest in colonies and another six species nest in or near bird colonies. Populations of several species (reddish egret, roseate spoonbill, American oystercatcher) are stable or increasing, while others are in decline (snowy egret, little blue heron, tricolored heron and white ibis).

Active waterbird colonies in the Tampa Bay watershed. SOURCE: FWC

The two islands comprising the Richard T. Paul Alafia Bank Bird Sanctuary are among the largest and most diverse waterbird colonies in the continental United States, with nearly 18,000 nesting pairs of 16 to 20 species of birds. Erosion, caused by storm waves and boat wakes, is a significant threat to these and other nesting island and shorelines in the watershed. More than 2,000 feet of oyster reef was created as a wave break for Alafia Bank to slow erosion, improve water quality, and promote growth of salt marsh and mangroves. Another 4,750 feet of living shoreline is being installed with funds from the federal RESTORE Act.

In November 2016, FWC created 13 new and five expanded Critical Wildlife Areas (CWA) in Florida, designed to protect important habitat sites where wildlife nest, breed and forage. A new CWA was established at Dot-Dash-Dit Island at the mouth of the Braden River, which hosts the bay’s only coastal colony of wood storks. The existing CWA at Alafia Bank was expanded. The designation creates a 100-foot buffer around these bird colonies with year-round closures to protect them. Identification of suitable alternative colony nest sites is needed, as natural disasters may eliminate entire nesting populations or habitats. Additionally, colonies may abandon a nesting site for unknown reasons.

A variety of wildlife already is monitored in the bay watershed—from routine sampling of benthic creatures on the bay bottom by the Environmental Protection Commission of Hillsborough County (EPCHC), to stock assessments of popular sportfish by FWC, to manatee counts conducted in the winter when manatees congregate at power plants.

Tampa Electric’s Big Bend Power Plant is an important warm-water refuge for manatees in the winter. Visitors from near and far come to see the animals in the discharge canal. SOURCE: FWC

The Tampa Bay Estuary Program’s Bay Mini-Grant program has funded baseline surveys of seahorses and pipefish, neo-tropical migratory songbirds, diamondback terrapins and a rare freshwater turtle recently “re-discovered” in the Alafia River. Community-based programs enlist citizen volunteers to report sightings of mating horseshoe crabs (FWC), count bay scallops (Tampa Bay Watch), collect abandoned, derelict crab traps that continue to ‘ghost fish’ (Tampa Bay Watch), retrieve and recycle fishing line that can entangle and kill birds (Tampa Bay Watch, Audubon Florida), and train “Bird Stewards” to help protect posted shorebird nest sites.

In 2016, FWC adopted new rules for imperiled species detailed in a comprehensive Imperiled Species Management Plan (ISMP) which became effective January 2017. The ISMP addresses individual species in Action Plans containing specific conservation goals, objectives and actions. In addition, the ISMP describes integrated conservation strategies to benefit multiple species and their shared habitats. It focuses on 57 imperiled species in Florida.

Endangered, threatened or at risk species in the Tampa Bay watershed. SOURCE: USFWS, FWC

Common Name

Scientific Name

Status

Birds

Audubon's Crested Caracara

Polyborus plancus audubonii

FT

Everglade Snail Kite

Rostrhamus sociabilis plumbeus

FE

Florida Grasshopper Sparrow

Ammodramus savannarum floridanus

FE

Florida Scrub-jay

Aphelocoma coerulescens

FT

Ivory-billed Woodpecker

Campephilus principalis

FE

Piping Plover

Charadrius melodus

FT

Red Knot

Calidris canutus rufa

FT

Red-cockaded Woodpecker

Picoides borealis

FE

Whooping Crane

Grus americana

Fexp

Wood Stork

Mycteria americana

FT

Little Blue Heron

Egretta caerulea

ST

Tricolored Heron

Egretta tricolor

ST

Reddish Egret

Egretta rufescens

ST

Roseate Spoonbill

Platalea ajaja

ST

Florida Sandhill Crane

Grus canadensis pratensis

ST

American Oystercatcher

Haematopus palliatus

ST

Snowy Plover

Charadrius nivosus

ST

Least Tern

Sternula antillarum

ST

Black Skimmer

Rynchops niger

ST

Florida Burrowing Owl

Athene cunicularia floridana

ST

Southeastern American Kestral

Falco sparverius paulus

ST

American Kestrel

Falco sparverius paulus

FBCC

American Oystercatcher

Haematopus palliatus

FBCC

American Bittern

Botaurus lentiginosus

FBCC

Bachman's Sparrow

Aimophila aestivalis

FBCC

Bald Eagle

Haliaeetus leucocephalus

FBCC

Black Skimmer

Rynchops niger

FBCC

Black Rail

Laterallus jamaicensis

FBCC

Black-whiskered Vireo

Vireo altiloquus

FBCC

Brown Booby

Sula leucogaster

FBCC

Brown-headed Nuthatch

Sitta pusilla

FBCC

Chuck-will's-widow

Caprimulgus carolinensis

FBCC

Common Ground-dove

Columbina passerina exigua

FBCC

Gull-billed Tern

Gelochelidon nilotica

FBCC

Henslow's Sparrow

Ammodramus henslowii

FBCC

Le Conte's Sparrow

Ammodramus leconteii

FBCC

Least Bittern

Ixobrychus exilis

FBCC

Least Tern

Sterna antillarum

FBCC

Lesser Yellowlegs

Tringa flavipes

FBCC

Limpkin

Aramus guarauna

FBCC

Loggerhead Shrike

Lanius ludovicianus

FBCC

Long-billed Curlew

Numenius americanus

FBCC

Magnificent Frigatebird

Fregata magnificens

FBCC

Mangrove Cuckoo

Coccyzus minor

FBCC

Marbled Godwit

Limosa fedoa

FBCC

Nelson's Sparrow

Ammodramus nelsoni

FBCC

Peregrine Falcon

Falco peregrinus

FBCC

Prairie Warbler

Dendroica discolor

FBCC

Prothonotary Warbler

Protonotaria citrea

FBCC

Red Knot

Calidris canutus rufa

FBCC

Red-headed Woodpecker

Melanerpes erythrocephalus

FBCC

Reddish Egret

Egretta rufescens

FBCC

Roseate Spoonbill

Platalea ajaja

FBCC

Rusty Blackbird

Euphagus carolinus

FBCC

Seaside Sparrow

Ammodramus maritimus

FBCC

Short-billed Dowitcher

Limnodromus griseus

FBCC

Smooth-billed Ani

Crotophaga ani

FBCC

Snowy Plover

Charadrius alexandrinus

FBCC

Swainson's Warbler

Limnothlypis swainsonii

FBCC

Swallow-tailed Kite

Elanoides forficatus

FBCC

Whimbrel

Numenius phaeopus

FBCC

Wilson's Plover

Charadrius wilsonia

FBCC

Worm Eating Warbler

Helmitheros vermivorum

FBCC

Yellow Rail

Coturnicops noveboracensis

FBCC

Short-tailed Hawk

Buteo brachyurus

FBCC

Limpkin

Aramus guarauna

SDL

Brown pelican

Pelecanus occidentalis

SDL

Snowy egret

Egretta thula

SDL

White ibis

Eudocimus albus

SDL

Fishes and Elasmobranchs

Atlantic Sturgeon (gulf Subspecies)

Acipenser oxyrinchus (=oxyrhynchus) desotoi

FE*

Smalltooth Sawfish

Pristis pectinata

FE

Mangrove rivulus

Kryptolebias marmoratus

SDL

Giant Manta Ray

Mobula birostris

FT*

Insects

Highlands Tiger Beetle

Cicindelidia highlandensis

F cand

Miami Blue Butterfly

Cyclargus (=Hemiargus) thomasi bethunebakeri

FE

Mammals

Florida Bonneted Bat

Eumops floridanus

FE

Florida Panther

Puma (=Felis) concolor coryi

FE

Puma (=mountain Lion)

Puma (=Felis) concolor (all subsp. except coryi)

FT SoA

West Indian Manatee

Trichechus manatus

FT*

Homosassa Shrew

Sorex longirostris eionis

SDL*

Sherman's Fox Squirrel

Sciurus niger shermani

SDL*

Florida mouse

Podomys floridanus

SDL

Reptiles

American Alligator

Alligator mississippiensis

FT SoA

American Crocodile

Crocodylus acutus

FT

Bluetail Mole Skink

Eumeces egregius lividus

FT

Eastern Indigo Snake

Drymarchon corais couperi

FT

Green Sea Turtle

Chelonia mydas

FE

Hawksbill Sea Turtle

Eretmochelys imbricata

FE

Leatherback Sea Turtle

Dermochelys coriacea

FE

Sand Skink

Neoseps reynoldsi

FT

Florida Pine Snake

Pituophis melanoleucus mugitus

FT

Short-tailed Snake

Lampropeltis extenuata

FT

Suwannee cooter

Pseudemys concinna suwanniensis

SDL

* Change in designation since 2018

FT = Federally Listed Threatened

FE = Federally Listed Endangered

F exp = Federally listed Experimental Population

FBCC = Federally Listed Birds of Conservation Concern

FT SoA = Federally listed Threatened (Similarity of Appearance)

ST = State Listed Threatened

SSSC = State Listed Species of Special Concern

SDL = State Delisted Species

TBEP participates in collaborative partnerships within the Tampa Bay and Southwest Florida region to review and coordinate habitat restoration and protection initiatives (see Actions BH-1, BH-2, BH-3, and BH-9). These initiatives include identification of priority sites for acquisition and mitigation.

TBEP has been a leader in educating bay users about responsible water recreation, through boating guides, ethical fishing information and sponsorship of “Leave No Trace” outdoor etiquette workshops. TBEP also informs waterfront homeowners about ways to enhance their shorelines for fish and wildlife, and about coexisting with wildlife. ( )

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