Posts tagged “cicindelidia

Cicindelidia melissa: A new species from southeastern Arizona and Mexico

Just published: Duran and Roman described a new tiger beetle species, Cicindelidia melissa Duran & Roman 2014, from high elevation (>2000 m.) Ponderosa pine forests in Chiracahua Mountains of southeastern Arizona and the Mexican states of Sonora, Chihuahua and Durango.

zk_article_4338-11 © Daniel P. Duran, Stephen J. Roman. Reproduced here under the terms of CC BY 4.0

From the paper:

This species can be distinguished from all other similar Cicindelidia by its dark green-violet abdominal venter with the two apical segments dull orange or orange-brown, a brassy-cupreous head and pronotum with metallic blue reflections in sulci, small shallow subsutural foveae present in most individuals, and microserrate elytral apices. It inhabits rocky upland soils in ponderosa pine forests above 2000 m.

C. sedecimpunctata (Klug, 1834) has an entirely orange-red to orange-brown abdominal venter, a more uniform dull brown dorsal coloration, and lacks apparent subsutural foveae. It also differs from the new species by inhabiting muddy ground at nearly any elevation. C. nebuligera (Bates, 1890) has dark elytral infuscations that surround the middle band, and lacks elytral apical microserrations. It may be found in similar habitats, but is apparently allopatric with the new species and does not appear to be restricted to elevations above 2000 m.

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Left: Dorsal habitus of male (holotype); Right: Dorsal habitus of female (allotype). © Daniel P. Duran, Stephen J. Roman. Reproduced here under the terms of CC BY 4.0

 

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Top: Lateral habitus of male (holotype); Bottom: Lateral habitus of female (allotype). © Daniel P. Duran, Stephen J. Roman. Reproduced here under the terms of CC BY 4.0

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Blight?

[The Committee] accepts the Study identifying approximately 2,146 acres within the unincorporated municipal service area (UMSA), which lie entirely in Commission District 9 represented by Commissioner Dennis C. Moss, to be slum and blighted.

Miami-Dade Legislative Item 142509

This month a Miami-Dade county committee approved a resolution from county commissioner Dennis Moss to designate the Richmond Heights pine rocklands (the largest fragement of pine rocklands outside the Everglades National Park and the only habitat of the Miami tiger beetle) along with the surrounding lands “a slum or blighted area.” This resolution stemmed from a county-commitioned study supplied by the firm Calvin, Giordano & Associates which built a tenuous case that slum or blight conditions exist in and around the Richmond Heights pine rocklands. The Committee forwarded the resolution to the full Board of County Commissioners for consideration:

It is recommended that the Board of County Commissioners … consider taking the following actions:

4. The Board declares and finds that there is a need for a community redevelopment agency to function and carry out the community redevelopment purposes of the Act; and

5. The Board directs the County Mayor or the County Mayor’s designee to prepare a plan of redevelopment for the Area, and to submit the plan of redevelopment to the Board for approval after notice and public hearing.

Should a community redevelopment agency be created, the Area covered will make it the second largest in the County, with only the North Miami Community Redevelopment Agency larger at 3,540 acres. The Study includes the Zoo Miami, Coast Guard, and the former University of Miami properties.

Miami-Dade Legislative Item 142509

The goal in establishing the existence of slum or blight conditions and subsequent community redevelopment agency (CRA) is to create a special tax district¹ which will channel public funds into development of the site. The development in question is the $930 million theme park, Miami Wilds. As I have written previously the construction of this theme park (in its present incarnation) is a serious and unacceptable threat to the Richmond Heights pine rocklands and the survival of numerous endangered species, including the Miami tiger beetle, a candidate for emergency state and federal protection.

The developers, Miami Wilds LLC, have already received approval for an initial $13.5 million in bond funds to replicate the US Coast Guard communications tower array which currently stands in the footprint of the theme park. However, use of this land requires Federal permission and approval of the developer’s plans; approval which has not yet been given.

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The Richmond Heights pine rocklands have survived comparatively unscathed since the since the early development of the site in the 1940s and these lands represent a major portion of the 1.8% of pine rocklands left outside the Everglades National Park. Any further development seriously jeopardizes the rocklands, chiefly by fragmenting the remaining habitat and stifling fires, a necessary ecological cycle for the continued health of the habitats.

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Proper management of pine rockland fragments includes prescribed burning (which can generate heavy amounts of smoke)… Construction of hospitals, schools, apartments, and hotels around [rocklands] should be discouraged because of conflicts with smoke generation during prescribed fires. URS Corporation et al 2007

These current plans for Miami Wilds and Coral Reef Commons will severely fragment the remaining Richmond Heights pine rocklands. Once these rocklands are surrounded by heavy development any prescribed burning will be extraordinarily unlikely.

… maximize open space and limit pollution runoff [around rocklands]. URS Corporation et al 2007

A secondary impact of any development is that without sufficient buffer areas around the rocklands the new fragments will be highly susceptible to pollution and encroachment of non-native and invasive animals and plants from the surrounding.

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The current plans for development do not adequately conserve these imperiled rocklands and are not a reasonable option for the continued survival of this unique habitat and its inhabitants. Over 98% of the Miami-Dade rocklands have been lost to development. There are better options for utilization of the non-rockland areas, options which do not fragment or destroy rocklands, alternatives which provide adequate buffers to facilitate the necessary management of the habitat.

The “blight” resolution has been forwarded to the Board of County Commissioners for consideration and a full public hearing on January 21st.

Local residents are planning a rally for the rocklands on January 17th

The Center for Biological Diversity has a letter to the Miami Board of County Commissioners which you can sign and send in support of preserving the pine rocklands.

View the resolution here. Read the Calvin, Giordano & Associates study here.

Also see the Miami Herald article on the this latest development.

Notes

¹In designating an area as a CRA governing bodies are afforded the opportunity to leverage public financing for the purpose of land acquisition, demolition, housing and infrastructure improvements, environmental remediation, neighborhood enhancement and other similar activities. This is accomplished through a funding mechanism known as Tax Increment Financing (TIF). From MetroZoo Finding of Necessity Study 2014 Update

References

URS Corporation, The Institute for Regional Conservation, and Muller and Associates, Inc. 2007. Miami Dade County Environmentally Endangered Lands Program Management Plan, Part II: Management of specific habitat types, Chapter 1: The pine rockland habitat. Submitted to Environmentally Endangered Lands Program, Miami, Florida by URS Corporation. K.A. Bradley, G.D. Gann, M.J. Barry, contributors.


Emergency protection sought for Miami tiger beetle

Today the Center for Biological Diversity filed emergency petitions to protect the exceedingly rare Miami tiger beetle, Cicindela floridana, a South Florida pine rocklands endemic, as a protected species under Florida law and as endangered under the federal Endangered Species Act.

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Pine rocklands once stretched from the Florida Keys up to the northern edge of Miami-Dade County, but widespread urbanization and agricultural development destroyed the majority of Floridian pine rockland. This fire-dependent community, found on limestone outcroppings, is comprised of a sparse canopy dominated by Florida slash pine, Pinus elliotti var. densa, and a varied understory. Today, only a fraction of the original Miami pine rockland habitat remains; by some estimates as little as 1.8%. Moreover, most of these remaining areas are quite small and often widely separated by miles of heavy development.

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The pine rockland habitats are home to many endemic species, many of which are listed as endangered including the Florida Bonneted bat (Eumops floridanus), Bartram’s hairstreak (Strymon acis bartrami), Florida leafwing (Anaea troglodyta floridalis), Florida brickell-bush (Brickellia mosieri), deltoid spurge (Chamaesyce deltoidea deltoidea), Carter’s small-flowered flax (Linum carteri carteri), tiny polygala (Polygala smallii).

Today many of these remaining pine rocklands and their inhabitants now face another danger; due to the lack of fire, both native and non-native vegetation are taking over the habitats which incrementally transitioning to hardwood hammocks.

Of greatest concern is the Richmond Heights pine rocklands, where the Miami tiger beetle was rediscovered in 2007. In addition to vegetation encroachment, there are plans to develop significant portions of the pinelands. The first, and most immediate, is Ram Realty’s plan to develop and 88-acre parcel of rocklands purchased from the University of Miami.

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While Ram has set aside some of the land for nature preserves, any development seriously jeopardizes the rocklands by fragmenting the remaining habitat and stifling fires, a necessity for the continued health of the habitats. The second, and most expansive in scope, is the county’s plan to develop a major amusement park in and around the rocklands.

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This plan calls for major development including a four lane highway and major transportation corridor through the rocklands. This development will irrevocably damage all of the Richmond pine rocklands, through fragmentation, pollution, and stifling fires within the remaining habitat.

Both development pose real and immediate risks to endangered and rare species, including the Miami tiger beetle. These developments will results in the destruction and degradation of pine rocklands and will kill endangered and candidate species including the adults and larvae of the Miami tiger beetle.

Even before the current plans for development the Miami tiger beetle (Cicindela floridana) was a U.S. Fish and Wildlife Service species of concern. Additionally, Knisley et al (2014) assigned the Miami tiger beetle a 1+ grade, their “highest level of rarity and/or threats” in a comprehensive review of the conservation status of United States tiger beetles. With over 98% of the potential former habitat gone and direct threats to the only remaining habitat this species is in need of urgent action to prevent its extinction.

The Center for Biological Diversity’s press release is available at their website.

References

Knisley, C., M. Kippenhan, and D. Brzoska. 2014. Conservation status of United States tiger beetles. Terrestrial Arthropod Reviews. 7: 93-145.

U.S. Fish and Wildlife Service. South Florida Multi-Species Recovery Plan: Appendix C. Species of Concern and their Associated Community Types in South Florida.

URS Corporation, The Institute for Regional Conservation, and Muller and Associates, Inc. 2007. Miami Dade County Environmentally Endangered Lands Program Management Plan, Part II: Management of specific habitat types, Chapter 1: The pine rockland habitat. Submitted to Environmentally Endangered Lands Program, Miami, Florida by URS Corporation. K.A. Bradley, G.D. Gann, M.J. Barry, contributors.


Revisiting the recently rediscovered C. floridana

It is an early August morning and I am sitting in the Richmond International Airport, once again waiting for a flight to south Florida. There I will be revisiting the site where Cicindelidia floridana, once believed extinct, was rediscovered in 2007.

Last August I had the privilege of seeing this rare species in the wild and photographing several individuals while assisting Barry Knisley with surveys of the potential habitat.

Ever since that trip to Miami I hoped to make another trip down to see this species so when Ted MacRae, author of the excellent blog Beetles in the Bush, mentioned he was traveling to Florida this summer I jumped at the chance to see this species and to meet Ted in person. Before long the arrangements were set; not only would I be meeting Ted, but also the co-author of the floridana paper and prolific tiger beetle collector David Brzoska.

We would not be meeting until the evening of the day after my flight arrived, so upon my arrival in south Florida, while I had some free time, I visited several sites in search of a number of Floridian tiger beetle species (the results of this tangent will be detailed in future posts).

The next evening Ted and I met up at Dave’s where we spent the bulk of the evening looking at Dave’s unparalleled collection of tiger beetles from all over the world and I finally turned in for the night with visions of Manticora and Pseudoxycheila dancing in my head

We got an early start the next morning and headed out from Naples towards Miami on the approximately 2½-hour drive. By the time we reached the site the temperature was climbing through high eighties, presenting a distinct challenge to photographing this specie let alone any tiger beetle.

C. floridana is found in open sandy patches in pine rocklands, a habitat once common in the Miami area. The saw palmetto obscured any sandy areas so from a distance the habitat seemed unsuitable.

As Ted and I readied our camera gear, Dave ventured out through the saw palmetto and soon called out that he had spotted a beetle. I walked to a nearby sandy patch and quickly noticed the distinctive flash of movement. This first beetle darted away and then took flight as I attempted to maneuver closer.

However, in the next sandy area I spotted another beetle and began to slowly move in. This beetle also turned and took flight. And the next. This frustrating sequence of events repeated several times.

At last, after painstakingly inching forward on my stomach, I finally snapped a beautiful shot of a small male beetle. From a distance the beetle’s color was an oily bronze with subtle green undertones, but up close and lit by my flash this striking green was fully visible.

While I snapped off several shots this cooperative beetle remained still and, pressing my luck I moved in for a closer shot. To my surprise I was able to zoom in and get a closer shot which prominently showed the snow-white pronotal setae.

After this definite success, I managed to snap shots of a few other beetles, but none of these images turned out quite as nice as my first shots.

I then observed the behavior of the beetles in a few of the clearings. With the sun out and the temperature well into the eighties the beetles were actively moving about the sandy areas. I would notice a beetle occasionally “duck” its head as it snatched up one of the many small ants that were also running about. The beetle in question would then stand still and, watching closely, I could make out the swift movement of its mandibles as the hapless ant was reduced to mush.

When not actively looking for prey or a mate, the beetles would often take refuge from the sun in the shade of a grass stem near the edges of the clearing.  I did see several attempted matings while I watched and once particularly determined male did manage to maintain his grip. The pair remained coupled for several long minutes until the female dislodged the male and scurried away.

Time passed all too quickly and before long Ted, Dave, and I began to gather back up to the car and soon headed back down the road to Naples. It had been a extremely successful day for me and Ted as well.

Check out Ted’s excellent post on this trip here or check out the photos from my first trip to see this species here.