LIZARDS OF ABACO: ANOLES (AND DEWLAPS)

May 26, 2017 by Rolling Harbour

LIZARDS OF ABACO: ANOLES (AND DEWLAPS)

Everyone knows about CURLY TAIL LIZARDS. Everyone loves them and their little ways. The other lizards that may be found on Abaco – the anoles, green and brown – are easier to take for granted. Unless, maybe, you see one displaying its DEWLAP. These are essentially folds of neck skin that are seen in many creatures – even large ones like the moose – and which in some species are inflatable / retractable.

Abaconian Rhonda Pearce has taken some excellent photos of anoles recently. By oversight I have never given anoles a day in the sun in this blog before, and it’s high time I did (see above re overlooking anoles in favour of curly tails…). First, here are some impressive dewlaps to admire.

And here are a few green and brown anoles hanging out on trees and leaves in an anole-type way. In a couple of these images, you can see the dewlap in its non-display mode. They are all just… lizards. Non-scary, non-venomous, non-poisonous little guys that are probably a peripheral part of everyone’s experience, but which really deserve a closer look.

You can read more about anoles, including their sex lives, on the excellent Abaco Scientist’s site HERE

OPTIONAL MUSICAL DIGRESSION

The first time I heard the word ‘dewlap’ (misheard by the young me as ‘dewlat’) was in the mid-60s, in Georgie Fame’s excellent Ballad of Bonnie & Clyde. This song – and doubtless the film – was number 1 in the UK and maybe also the States. Famous too for such fine songs as ‘Yeh Yeh!’ and ‘Sitting in the Park’, Fame’s ‘Ballad’ is probably his best-loved song.

I assumed then that a ‘dewlat’ was some sort of valuable gold coin – like a gold sovereign – that bank robbers put into a specially designed ‘dewlat bag’ to carry them away… Ah! The naivety of youth.

Bonnie and Clyde advanced their reputation

And made the graduation into the banking business

“Reach for the sky,” sweet-talking Clyde would holler

As Bonnie loaded dollars in the dewlap bag

Credits: all photos, Rhonda Pearce with thanks as ever; icecreammakesuhappy, youtube

A FROG CALLED TOAD: NEW AMPHIBIAN SPECIES FOR ABACO

May 31, 2016 by Rolling Harbour

A FROG CALLED TOAD: NEW AMPHIBIAN SPECIES FOR ABACO

Welcome to the wonderful world of the tiny Eastern narrow-mouthed toad. This non-native species has just been discovered on Abaco and formally identified. It looks like a toad. It’s called a toad. It’s actually a frog. There’s a song from the ’60s (dread decade) called ‘Walkin’ my cat named dog…’. But no one has come up with ‘Check out my frog named toad’. Yet.

THE FIRST EVIDENCE ON ABACO

A year ago, Sean Giery reported on the excellent ABACO SCIENTIST website that he had heard the unmistakeable (to him) mating call of Eastern narrow-mouthed toads Gastrophryne carolinensis in the Marsh Harbour area, Abaco. Denizens of south-eastern US, the species had previously only been recorded in the Bahamas on Grand Bahama and New Providence.

Sean estimated that he heard several dozen of these tiny 2.5cm frogs, suggesting a well-established population. A veritable Frog Chorus.** However, he wasn’t able to obtain a specimen, so his identification was by sound alone – vividly described as “like a bleating lamb with a stuffy nose”. You can read the full article from last May HERE.

THE FIRST SPECIMEN IS FOUND

In a further article one year later HERE, Sean relates how he was called to the home of alert student Donte Richard, who had remembered the original post. This was in a different area of MH, suggesting a spread of population. Others had reported the distinctive bleating calls as well. Identification of the specimen frog was made by researchers at the Frank Kenyon Centre, Friends of the Environment, and confirms a new addition to Abaco’s vertebrate fauna.

The evidential specimen

WHERE WERE THEY FOUND?

ENM Toad Map MH

MIGHT THEY BE HARMFUL?

Sean writes: “With Abaco added to the list of islands we see a distribution pattern that echoes another recent invader (the corn snake). Perhaps they share a similar route of entry? Whether or not the narrow-mouthed toad poses any real threat to Abaco’s native flora and fauna is unknown. However, given their diet of small invertebrates (ants, mites, termites), it seems unlikely that they could pose any substantial risk. That said, who knows?”

WHAT DO THEY LOOK LIKE WITH NO CLOTHES ON?
Tidelands Toad Skelly 2

CAN I BUY ONE AS A PET?

Yes, by all means you can. But they are remarkably expensive for a 2.5cm creature. ‘Urban Jungle Reptile’ sells them for $80 each. You might need a pair. But you’d be better off hanging round Marsh Harbour in May with a small bucket and spade. And they are useless for taking on walks. You’d be far better off with the cat named dog…

“My name is Freddie and I am for sale to a good non-amphibian-eating home” Narrow-mouthed frog (Urban Jungle Reptile)

**COMPLETELY THE WRONG SORT OF FROG CHORUS

CREDITS: foremost to Sean Giery / ABSCI for use permission for photo use and info; Todd Pierson (header), Sean (2, map 5), P.Coin (3); Brian Kakuk for posting the specimen initial shot (4); Tidelands Nature Center for the terrific skeleton photo taken at the Smithsonian (6); Urban Jungle Reptile ad (7).

DISCREDITS: Paul McCartney for his ill-advised foray into amphibian-based songwriting, a close second to David Bowie’s ‘Laughing Gnome’ for star career low points. Some might say.

MANGROVE DIE-BACK IN THE ABACO MARLS: THE FACTS

September 1, 2015 by Rolling Harbour

MANGROVE DIE-BACK IN THE ABACO MARLS: THE FACTS

For some time now, there has been understandable concern about the increasing evidence of mangrove die-back in the Abaco Marls and elsewhere in Abaco waters. Scientific investigations are ongoing and you will find some of the survey results so far on the excellent Abaco Scientist interactive map HERE. You’ll find other relevant and authoritative mangrove material if you check out the BLOG menu of the website.
Abaco - The Marls

The ‘200 sq. miles’ in my map is debatable, depending what one includes. Other estimates are of 300 or even 400 sq. miles. Whichever, the Marls cover a massive area of mangroves, islets, flats, channels and wonderfully diverse wildlife. A large proportion of the many species – fish, birds, turtles etc – depend on the complex ecology of the mangroves for food, shelter and breeding. Depletion of the mangroves from whatever cause will have a direct effect on the creatures of the Marls.

Ryann Rossi, a PhD student with North Carolina State University, has been researching the worrying phenomenon of mangrove die-back in the Marls this summer. She has written an interesting and informative account (conveniently in the RH ‘Facts about…’ style) that was published in Abaco Scientist last week. The blue links will take you to the ABSCI site for further information on each topic. I’m grateful to Ryann and ABSCI for permission to use the material.

Five Things to Know About the Mangrove Die-back in The Marls (at this point, anyway)

1. This die-back appears to be the result of multiple stressors acting together. Think of it in the sense of our own body – when our immune system is down, we are often more susceptible to getting sick. The same thing is likely happening to the mangroves.

2. It appears as though a fungal disease may be taking advantage of already stressed mangroves and causing die-back. We did preliminary surveys across Abaco and found fungal lesions nearly everywhere. However, the fungus was present in different densities in different areas. In the die-back area nearly all the leaves remaining on trees have lesions. We think that this pathogen capitalized on the mangroves being weakened by other stressors such as hurricanes, which cause extensive leaf drop, change in the movement of water, change in sedimentation and erosion.

3. We are still working on identifying the pathogen associated with the lesions we’ve found. We are confident that it is a fungus and are currently growing fungal cultures in the lab to examine defining morphological characteristics in addition to using DNA sequencing to identify the culprit.

4. We have documented the presence of the Robust Bush Cricket (Tafalisca eleuthera) in the die-back areas as well as other areas with high densities of lesions. These crickets are documented to consume Red and White mangrove leaves. As such, we were concerned about their potential role in die-back. We set out a caging experiment to exclude the crickets from certain dwarf Red mangrove trees to see just how much grazing they may be doing in the die-back area. This experiment is ongoing.

5. The take home: there is likely more than one causal agent of the die-back in The Marls. Many factors govern mangrove productivity and functioning: nutrient availability, salinity, sedimentation rate, herbivory, and disease are just a few of the factors that contribute to overall mangrove function making it very difficult to pin point which factors may be driving the die-off. On the bright side, we are confident that we have a lead on the causes and we are working hard in the field and laboratory to fully understand what is going on in The Marls.

By Ryann Rossi|August 26th, 2015|Disease, fungus, Insects, Mangroves and Creeks, The Marls

All pics below taken while fishing on the Marls except Melinda’s shark (I’ve never got a good one)

Hawksbill Turtle, Abaco Marls (Keith Salvesen)

Reddish Egret (White Morph), Abaco Marls

Southern Stingray, Abaco Marls (Keith Salvesen 4)

FRIENDS OF THE ENVIRONMENT has also included an article on die-back by Ryann in its latest Newsletter:

Mangrove Die Off on Abaco by Ryann Rossi, NCSU

This summer Stephanie Archer and I continued research efforts focused on determining the cause of the mangrove die-off in The Marls (work funded by the National Science Foundation). Our efforts were predominantly focused on the fungal pathogen we found associated with the die-off site. We created a small citizen science and outreach project to document the presence or absence of the pathogen across Abaco. This project consisted of short surveys and leaf collections. In total, 92 areas were surveyed including locations from Abaco and San Salvador. We also took this outreach project to the annual Bahamas Reef Environment Education Foundation (BREEF) teacher training conference. There we disseminated survey packets to teachers from islands throughout The Bahamas who will help us collect more data on the presence (or absence) of this pathogen on other Islands.

3 men on a skiff, Abaco Marls (Keith Salvesen : Rolling Harbour)

Three men on a skiff – Abaco Marls

On Abaco, we constructed an experiment to investigate the role of grazing and the presence of fungal lesions on Red mangroves. We simulated grazing using crafting scissors to cut small sections on 600 leaves in 4 different mangrove creeks. We observed the leaves for 28 days to determine if cutting leaves predisposed leaves to fungal infection. At these sites we also trapped for insects to gain an idea of what kind of grazers may be chewing on the leaves. We also did a series of disease incidence surveys that will be routinely monitored for disease progress over the next 2 years. These surveys will allow us to systematically track the progress of the disease. In addition to our field work, we spent many hours in the laboratory isolating fungi from leaves to grow in culture. These cultures were brought back to North Carolina State University and will be sequenced in order to help us identify the fungal pathogen responsible for making the lesions on the mangrove leaves.

Credits: Source material Ryann Rossi; Abaco Scientist; all photos © Keith Salvesen @ Rolling Harbour except those by Ryann / ABSCI in the main article and Melinda Riger’s cool shark

SHARING SHEARWATER SEASHORE SHOCK ON ABACO…

June 29, 2015 by Rolling Harbour

SHARING SHEARWATER SEASHORE SHOCK ON ABACO…

I return reluctantly to the “Great Shearwater” phenomenon to give, I hope, closure to the topic for this season and with luck for several years to come. A great many people have engaged with the debate about the large number unfortunate birds found either dead or dying in the water or (especially) on the beaches of Abaco and beyond. You can see the original post, a tabulation and map based on the reports I received or came across, and the views of the experts HERE.

This occurrence appears to have declined considerably from its peak last week, presumably because the migration has moved rapidly northwards. Already, reports from the eastern US Atlantic coast (e.g. Cape May) of a great shearwater influx are coming in, so we must hope that the attrition rate in the Northern Bahamas has stopped, or will stop within the next few days. This is evidenced by this FB clip from Tom Reed, a photographic contributor to THE BIRDS OF ABACO

The ABA (American Birding Association) has taken an interest in the problem on Abaco, and reported the incidence of shearwater die-off HERE. For the sake of completeness, I have updated reports I have received or found over the last few days below, together with an updated distribution map. More sad images are included because, pitiful though they are, photographs are of real assistance in the study of migratory die-off. For example, it is likely that juvenile birds are more likely to be affected by exhaustion in the course of their 10,000 mile journey than adults. Photos enable an assessment of the age of the birds to be made.

Exhausted shearwater, Delphi beach. Is this a juvenile, less able to make a huge journey than an adult?The yellow tip to this bird’s beak shows that it is a different species of shearwater, the Cory’s. Like the Greats, these birds are also rare transients on Abaco, and also make long-distance migrations. A Cory’s was photographed a couple of weeks ago swimming happily off the Delphi beach. This one has obviously run out of stamina. It has the chance to recover, but it is vulnerable in this state; and turkey vultures are quick to move in on fatalities…

UPDATED REPORTS (SINCE JUNE 24) IN RED

Delphi Club Beach – 20 plus + 1
Schooner Bay – 5
Bahama Palm Shores – ‘many many’ dead birds washed up on the shore
Casuarina Beach – 1
Cherokee (Watching Bay) – 3 or 4
Cherokee (Winding Bay) – 4
Little Harbour – 3
Marsh Harbour area – about 5
Great Guana Cay, southern end – 1 (possibly a gull)
Tilloo Cay – 13 at least on Junk Beach, more than ever seen (see photos below)
Elbow Cay – 2 + 1 Atlantic side beach near Abaco Inn
Elbow Cay – 2, North End
Green Turtle Cay beach – 2
Green Turtle Cay, offshore – “a lot in the water”
Man-o-War Cay – 1 by the roadside
Ocean 20m from HT Lighthouse – 2 in the sea

also Exuma Sound (5 birds), Shroud Cay Exuma (gull?”), Briland Beach,Harbour Island Eleuthera (“some” + 4) , and Church Bay, South Eleuthera – 10 + 2

Ellen Bentz, who reported the Church Bay birds, has frozen 3 of them for research purposes; it will be extremely interesting to see what results from their examination, from the ages of the birds to condition to likely cause of death. She also took photographs to aid species identification and diagnostic efforts.

unnamed-2

Abaco distribution map. Earlier reports marked in green, two new sites in blue

Here is the wonderful Crossley ID guide tableau of great shearwaters, showing every facet of the bird

Great_Shearwater_from_the_Crossley_ID_Guide_Britain_and_Ireland

WHERE DO THESE BIRDS COME FROM & WHERE DO THEY GO?

Sean Giery of the excellent ABACO SCIENTIST has also commented on the recent phenomenon, concluding “…if you haven’t looked up Gough Island, the probable origin of these Greater Shearwaters, do. Use Google Maps to get an impression of how far these amazing birds travel. It’s truly amazing.” By great good fortune, I’ve done the legwork for you… Let’s take a closer look.

Great shearwaters breed almost exclusively the small area of the globe that includes the Gough Islands, Tristan da Cunha and a few lesser-known islands in that area. There is also a small breeding population in the Falklands. Whichever, they are not so very far from Antarctica. Their range, however, is massive and involves long migrations over the Atlantic ocean to the far north – as far as the Arctic – and back each year.

And, as the shearwater flies, this is the distance from the breeding grounds to Abaco; 2/3 of their total journey. Now, factor in a first-season juvenile shearwater facing the vagaries of food supply, weather conditions and stamina… The fact that some die-off occurs every few years at some stage of the migration becomes less surprising.

I’ll conclude with a photo of a great shearwater flying ‘at the shear’, which I am certain is how best we’d like to think of these wonderful seabirds…

Credits: to the 30 or so people credited in the original post I add with thanks Molly Kemmer Roberts, Susan Drwal, Sharon Elliott, Ellen Bentz, Dick Daniels and open source maps chaps.

RANDY: LOOKING FOR MANATEE LOVE IN ABACO?

September 11, 2014 by Rolling Harbour

RANDY: LOOKING FOR MANATEE LOVE IN ABACO?

Strangely, the opportunistic title of this post may not be as contrived or daft as it looks. The facts are these.

THE FEMALE In 2012 GEORGIE, a young female manatee, left her mum in the Berry Islands and braved the crossing to Abaco. She reached the Marls; went right round top and down the east side; and eventually settled in the Cherokee / Casuarina area. She managed to hole up there safely during hurricane Sandy but became sick and was removed to Atlantis for medical treatment and rehab, before being released back to the Berry Is. This spring she set of again for Abaco and seems to have made straight for Cherokee, where she has now been resident for several months.

Georgie the Manatee as a calf in 2012, checking out the BMMRO boat

THE MALE Randy also originates from the Berry Is, where he was born. He too set off on an expedition to Abaco in the spring, presumably following Georgie. He was seen at Gorda Cay in mid-August and then fetched up at Sandy Point. After spending the summer there, he too took a trip right round the top of Abaco and down the east side. By early September he had got as far as Little Harbour. However, the big question is whether he can, in some way, tell that a lady manatee is a shortish swim away. And if so, will he make the short trip down the coast? And might that lead to baby manatees on Abaco…? Here are some of the photos of Randy’s sightings along the way

RANDY AT SANDY POINT

Sirenians and cetaceans are generally recognised from particular patterns to flukes or fins. The second image shows the notch in Randy’s tail that confirms ID Randy the West Indian Manatee (tail), Sandy Point, Abaco, Bahamas

RANDY IN THE LITTLE HARBOUR AREA

Randy’s notched tail is clearly visible in the first picture

This could be everyone’s favourite picture – almost like a ‘Randy Selfie’ with a GoPro…

RANDY’S JOURNEY & THE DISTANCE BETWEEN HIM AND LOVE…

Excuse me while I anthropomorphise excessively here. Randy may only be appearing to follow Georgie; the route and the area may happen to suit manatees who may be a short distance apart yet completely ignorant of the presence of the other. Or else… Anyway, more news as (if) it breaks. Here are a couple of maps, of the sort that the red-top press might put together to go with the headline “Lovelorn Randy – A Man Manatee Seeks His Sirenian Siren”. Pictures, page 8, 9, 10 and in sports section.

STOP PRESS SEPT 21

Oh dear. The course of love is rarely straightforward. Randy has retraced his route and returned to Castaway Cay. Meanwhile Georgie remains happily at Cherokee.

RELATED POSTS

GEORGIE at Cherokee, 2012

“GEORGIE” the manatee movie (on location, Cherokee)

GEORGIE taken to Atlantis for medical treatment

GEORGIE Is she related to an elephant?

Credits: BMMRO + Heather Albury, Andrew Lowe & Richard Appaldo for pictures & reports, Loggerhead Productions, Abaco Scientist

‘MEN AT WORK’: CLEANING UP MAN’S DEBRIS IN THE OCEAN

April 20, 2013 by Rolling Harbour

‘MEN AT WORK’: CLEANING UP MAN’S DEBRIS IN THE OCEAN

I keep an eye on the website SCUBAZOO. As ever, the alert ABACO SCIENTIST (highly recommended to follow) has beaten me to this latest post from Jason Isley, diver / photographer and creative thinker. He demonstrates the wonders and (human) blunders of the deep with wit and style. In the gallery below, he tackles the issue of man’s pollution of pristine waters. In a simple way, he manages to use humour to get across a message that can easily become obscured by lengthy sermonising. See what you think.

pollution06 pollution05

SHARK FINS – OOOP! A MODEL USE OF HUMOUR TO CONVEY ASERIOUS MESSAGE (VIDEO)

February 13, 2013 by Rolling Harbour

SHARK FINS – OOOP! A MODEL USE OF HUMOUR
TO CONVEY A SERIOUS MESSAGE
(VIDEO)

The CAPE ELEUTHERA FOUNDATION has produced a short video about sharks and shark fins that manages to be both amusing and to carry a powerful conservation message. It’s a hard trick to pull off successfully. Attempts to use humour to leaven a serious message or to modify earnestness in presentation so often trespass into the no-man’s land known as ‘Meh’ (twinned with ‘Wotevah’). I’m grateful to the always-interesting ABACO SCIENTIST for sharing this item. Photo credit: Melinda Riger, with thanks for use permission [I am posting this from NYC via iPhone, so any weird formatting or typos will have to be dealt with next week]

ABACO PARROTS & CHICKS – A 2012 BREEDING SEASON PICTURE GALLERY

November 26, 2012 by Rolling Harbour

ABACO PARROTS & CHICKS

A 2012 BREEDING SEASON PICTURE GALLERY

Time to write some more about Abaco’s most famous bird, the unique ground-nesting Amazon / Cuban parrot sub-species that makes Abaco its home, and breeds in the pine forests of the Abaco National Park in the south of the island. You’ll find lots of information and photos on the dedicated page ABACO PARROTS.

This post covers the 2012 breeding season, and highlights the success of scientist Caroline Stahala and her team in helping to secure the future of these rare endangered birds. The population had shrunk to around 2500 (or fewer) some years ago. More recently it had risen to 3000. An intensive conservation program, including anti-predation measures, has proved effective; and a systematic ringing program has enabled the team to keep a close eye on recovering parrot numbers. Caroline says that the population is now in the region of 4000, confirming an encouraging reversal of a dismal decline towards extinction for these beautiful birds.

ABACO PARROTS IN THE PINE FOREST

The parrots breed only in the pine forest, where they nest in quite deep holes in the limestone rock. This makes the nests and the areas round them vulnerable to predation from feral cats and rodents etc; but conversely it offers protection from the forest fires that would destroy tree nests.

The holes are often well concealed in the undergrowth and take some searching for…

Both parents are involved in the nesting and later chick care. The female lays 2 – 4 eggs.

The chicks hatch after an incubation period of around 26 days

Some of the nest holes are remarkably deep: the parent parrots clamber up and down the sides

The chicks grow the beginnings of feathers, remaining quite unattractive except to their parents

The parent parrots share feeding and care duties

The chicks / fledglings stage are ringed so they can be identified – see ABACO PARROT CHICKS

By coincidence, as I was producing the post above, Craig Layman at THE ABACO SCIENTIST was also ruminating on the topic of Abaco parrot breeding. He posted the comments below, which raise the very interesting question whether the Abaco parrots, with their increased population, may be starting to breed outside the National park. Caroline can probably answer this (see COMMENTS), but does anyone have any direct evidence to suggest a wider breeding habitat? I guess there would need to be a suitably pitted rock structure for the nests, and an absence of the usual cat- and rat-type predators that one might find nearer human populations. Answers welcomed via the comment box…

(Sort of) A Bahama Parrot Study

Posted by laymanc 26 Nov 2012

It isn’t really much of a study, but the only “science” I have been able to do over the last week with the continued turbidity of nearshore waters.

The Bahama parrot (more information HERE and HERE) is one of the iconic Bahamas animals, and the main factor behind the establishment of the ABACO NATIONAL PARK in southern Abaco. But my study has been conducted instead from my desk in Little Harbour. My main finding is simple: the range of the parrot has clearly expanded; it has now been a full calendar in which parrots have been in the area. Just a few days ago two dozen were squawking around the harbour. The key will be whether they begin nesting here as well – I havent heard reports of that yet. But if they do, the expanding nesting range will substantially increase long term viability of the parrot on Abaco. That ends my first ever Bahama parrot study (I really need more time in the water when I come back).

HOLE-IN-THE-WALL TO GAP-IN-THE-WALL: HURRICANE SANDY SMASHES ABACO LANDMARK

November 3, 2012 by Rolling Harbour

HOLE-IN-THE-WALL TO GAP-IN-THE-WALL

HURRICANE SANDY SMASHES ABACO LANDMARK

A ‘heads-up’ from the excellent ABACO SCIENTIST shows the devastating power of a hurricane-force wind, even at Cat 1 level. After centuries, the eponymous Hole-in-the-Wall has been blasted by Sandy into a Gap-in-the-Wall. Abaco has acquired a new islet, as yet to be named (I propose ‘Sandy Isle’… Or maybe ‘Storm Rock’). The photo below is by Justin Sands, and shows the new view of the southeastern extremity of Abaco. There was until recent times a very similar rock formation on Eleuthera, the Glass Window. It, too, was smashed by a storm and a new road bridge had to be built to link the separated parts (see end of post for image).

This is what the same view looked like until last week, with the ‘bridge’ still standing

Here is a very good close shot by well-known and all-knowing Abaco nature guide Ricky Johnson. There won’t be any more photos like this now… You can see what a large amount of combined wind and wave force it must have taken to blow the bridge apart.

The landmark lighthouse and defunct outbuildings at Hole-in-the-Wall sit just north of a promontory, a sort of Land’s End jutting into the ocean between Abaco and New Providence. The road to it is 15 miles of deteriorating surface through the pine forest of the National Park, and is not for the faint-hearted… see TO THE LIGHTHOUSE

A while ago I traced the history of Abaco, and in particular Hole-in-the-Wall, in maps. I got back as far as 1584 for Abaco itself, a map by Ortelius where Abaco appears as ‘Haraco’ and the geographical relationships are… vague. See A HISTORY OF ABACO IN MAPS

The first mention of Hole-in-the-Wall that I managed to trace was on a map by Couvens in 1737. The name is shown as ‘Hole in the Rock’, and that name alternated with the present one in both English and French, with variations, until settling on ‘Hole-in-the-Wall’ in the c20.

To see the full cartographical post see HISTORY OF ABACO / HOLE IN THE WALL IN MAPS

I also researched the pictorial history of Hole-in-the-Wall. Eventually I came across what may be the first pictorial representation of the Hole in the Wall. It is a fascinating aquatint from 1803 by J. Wells, published in The Naval Review and based on a sketch by a ship’s officer that accompanied a description of the southern end of Abaco for the Review. To put the picture’s age into perspective, it was completed 2 years before Nelson’s decisive victory against the combined French and Spanish navies at Trafalgar.

If you are still awake & would like to see the full post, click HOLE IN THE WALL: 1803 DESCRIPTION & AQUATINT

AN ARTISTIC PUZZLE OF LOCATION ATTRIBUTION – A WORK IN PROGRESS

The other notable depiction of Abaco is a print made by (or in conjunction with) the famous artist Winslow Homer, at the time that he was commissioned to produce work in the Bahamas in the 1880s. This print is the subject of ongoing research by myself and others. It is called ‘On Abaco Island’ and clearly shows the Hole in the Wall as we knew it until last week.

Winslow Homer also produced a well-known painting, the original of which is in the Brooklyn Museum, entitled ‘Glass Windows’. It doesn’t take a great leap of imagination to conclude that the painting is based almost exactly on the view in the print. Even if one ignores the geological evidence (eg the structural detail of the rock at the apex of the arch), note the cloud formations that match perfectly. The print predates and was the template for the painting. If the print was the result of Homer’s time in the Bahamas and an undocumented (?) visit ‘On Abaco Island’, so must the painting be…

However, the Homer / Brooklyn painting ‘Glass Windows’ is generally identified with the similar ‘rock hole’ formation on Eleuthera that is actually known as the Glass Window. As I mentioned earlier, the Eleuthera formation suffered the same fate in a storm, and a new road bridge now connects the two sides.Picture credit http://www.eleuthera-map.com (see also http://www.abacomapbahamas.com)

It isn’t easy to tell whether there is any geological similarity between rock structure in the painting and the Glass Window on Eleuthera. However the contention (mine, anyway) is that the Winslow Homer painting ‘Glass Windows’ is of the Hole in the Wall, Abaco and should be recognised as such. The poignancy of last week’s events at HitW – the loss of a well-loved island feature that can never be replaced – arguably makes the thesis more significant.

One further nugget in support of the case is that I have very recently discovered contemporary written evidence that in the second half of the c19, around the time that Homer was working in the Bahamas, the Hole in the Wall, Abaco was known locally as the ‘glass window’. That would explain Homer’s naming of the painting based on the Abaco print, and strengthens (concludes?) the argument that it is, indeed, of Abaco and not Eleuthera. QED. Repatriate Winslow!

RELATED LATER POSTS

“MIND THE GAP”: A NEW ISLET IS BORN

HITW: A UNIQUE PERSPECTIVE – PAST (close-up look from the sea)

HITW: A UNIQUE PERSPECTIVE – PRESENT & FUTURE (close-up look from the sea)

HOLE-IN-THE-WALL ABACO post Sandy 1

A MAP OF HURRICANES WORLDWIDE SINCE 1851: THE PLANET’S HOT-SPOTS

September 10, 2012 by Rolling Harbour

HURRICANE PATHS ON PLANET EARTH

Hurricanes. Extreme weather events that can strike anywhere in the world’s vulnerable zones. But where are these to be found? And in those zones, is there any historical evidence demonstrating that particular areas of the world are more vulnerable than others? A recent post on the very informative ABACO SCIENTIST website includes a comprehensive map of all hurricanes recorded since 1851. This map gives a clear picture of the hot-spots and danger areas.

Delphi Club Abaco 25 Aug 2011 / Hurricane Irene: Looking south from the balcony

The source is NASA and the article may be found HERE. I reproduce the map and explanation, with acknowledgement to John Nelson and IDV Solutions. Each blue link in the explanation below will take you to a new source of hurricane information, so the article is a valuable resource as a gateway to further hurricane knowledge.

EXPLANATION AND WORLD MAP

“Should you be worried about hurricanes? To find out, it is useful to know where hurricanes have gone in the past. The Earth map shows the path of every hurricane reported since 1851, Although striking, a growing incompleteness exists in the data the further one looks back in time. The Earth map graphically indicates that hurricanes — sometimes called cyclones or typhoons depending on where they form — usually occur over water, which makes sense since evaporating warm water gives them energy. The map also shows that hurricanes never cross — or even occur very near — the Earth’s equator, since the Coriolis effect goes to zero there, and hurricanes need the Coriolis force to circulate. The Coriolis force also causes hurricane paths to arc away from the equator. Although incompleteness fogs long term trends and the prevalence of hurricanes remains a topic of research, evidence is accumulating that hurricanes are, on the average, more common and more powerful in the North Atlantic Ocean over the past 20 years.”

Image Credit & Copyright: John Nelson, IDV Solutions

The eye of Hurricane Irene passes directly over the Delphi Club, Abaco 26 August 2011

The image below was shared on Facebook, but I don’t have the inventor’s name. I’m sorry not to be able to identify the originator of this ingenious hurricane warning. Every home should have one…

A GLIMPSE OF ARTIFICIAL REEF NIGHTLIFE – ABACO, BAHAMAS

August 29, 2012 by Rolling Harbour

A GLIMPSE OF ARTIFICIAL REEF NIGHTLIFE

This very short time-lapse video was posted on the always informative ABACO SCIENTIST website administered by Craig Layman of FIU (Florida International University). The site benefits from the wide knowledge of a variety of contributors in many different fields. As it says, “Abaco, just like all of the Bahamian Islands, hosts a wealth of natural wonders. From parrots to whales to blue holes to mangrove wetlands, it is no wonder that scientific research is thriving on the island. The Abaco Scientist is intended as your one-stop source for all things science on Abaco and throughout The Bahamas“.

The coral reefs of Abaco and the Bahamas (as elsewhere) are vital yet vulnerable eco-systems. The adverse effects of global warming (or however you describe it if you shy away from that specific term) are increasingly evident. To that damage can be added a slew of other major threats to coral survival – and to the marine life that thrives on the reefs. There are a number of research projects in progress in the Bahamas into the effectiveness of artificial reefs as a means of conservation of the ecology of reef waters. One of these is by FIU undergraduate student Martha Zapata. In her words, “We have recently been capturing time lapse video of the artificial reefs at night. Many reef fishes, like grunts, will leave the reef around dusk to forage in the nearby seagrass beds during the night. We wanted to be able to observe the fish on the reefs without influencing their behavior, so we used infrared light (which fish cannot see) to illuminate the reef. The image sequences have shown a stark difference in fish abundance from day to night. Also, we have been able to observe some of the more cryptic organisms that have made these reefs their home. Usually masters of disguise, urchins roam about the surface of the reef. Look out for the banded coral shrimp and crab that crawl up the side of the reef to graze on algae and detritus while the fish are away. Even a moray eel makes an appearance near the end!“

Besides specially constructed artificial reefs, other man-made objects provide good foundations for an artificial reefs and marine life – in particular, wrecks. There are many of these in the low waters of the Bahamas, some centuries old, others recent. Fred and Melinda Riger of Grand Bahama Scuba, Freeport, take their diving schools to wrecks because of the profusion of marine life that gathers around – and indeed inside – them.