Lotus, Nariva Swamp afternoon
Lotus seedpod, Nariva Swamp afternoon
Lotus, Nariva Swamp afternoon, Trinidad
Yellow Oriole / Icterus nigrogularis, Nariva Swamp…
Lotus, Nariva Swamp afternoon, Trinidad
Lotus seedpod, Nariva Swamp afternoon
Lotus, Nariva Swamp afternoon, Trinidad
Grey Kingbird, Nariva Swamp afternoon, Trinidad
Pied Water-Tyrant, Nariva Swamp afternoon, Trinida…
Water Lilies, Nariva Swamp afternoon, Trinidad
Smooth-billed Ani, Nariva Swamp
Nariva Swamp afternoon, Trinidad
Smooth-billed Ani, Nariva Swamp, Trinidad
Nariva Swamp afternoon, Trinidad, Day 6
Yellow-hooded Oriole, Nariva Swamp, Trinidad
Water Hyacinth, Nariva Swamp
Mango tree, Nariva Swamp afternoon, Trinidad
Cattle Egret on Water Buffalo, Nariva Swamp aftern…
Vervain / Stachytarpheta jamaicensis, Asa Wright N…
Green Honeycreeper male, Asa Wright Nature Centre,…
Nariva Swamp afternoon, Trinidad
White-headed Marsh-Tyrant, Nariva Swamp afternoon
Water Lilies, Nariva Swamp afternoon
Lotus seedpod, Nariva Swamp afternoon, Trinidad
Sacred Lotus, Nariva Swamp afternoon, Trinidad
Water Hyacinth / Eichhornia crassipes, Nariva Swam…
Dragonfly, Nariva Swamp afternoon, Trinidad
Pied Water-Tyrant, Nariva Swamp afternoon, Trinida…
Pied Water-Tyrant, Nariva Swamp afternoon, Trinida…
Yellow-chinned Spinetail, Nariva Swamp afternoon
Yellow-chinned Spinetail, Nariva Swamp afternoon
Wattled Jacana, Nariva Swamp afternoon
Wattled Jacana, Nariva Swamp afternoon
A glimpse of the ocean at Nariva Swamp, Trinidad
Frog Crabs, Nariva Swamp afternoon, Trinidad
Frog Crab, Nariva Swamp afternoon, Trinidad
Unidentified fruit, Nariva Swamp afternoon, Trinid…
Mangrove trees, Nariva Swamp afternoon, Trinidad
Spider, Nariva Swamp afternoon, Trinidad
Spider, Nariva Swamp afternoon, Trinidad
Spiders and web, Nariva Swamp afternoon, Trinidad
Unidentified plant, Nariva Swamp afternoon, Trinid…
Yellow-headed Caracara, Nariva Swamp afternoon, Tr…
Morinda citrifolia, Noni, Nariva Swamp afternoon,…
Sara Longwing butterfly, Nariva Swamp afternoon, T…
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Fiddler Crab, Nariva Swamp, Trinidad


My friends and I saw this crab when we were visiting the Nariva Swamp on Day 6 of our holiday on the islands of Trinidad & Tobago. Nariva Swamp is on the east side of Trinidad. I believe it is a male Fiddler Crab.
"Fiddler crabs communicate by a sequence of waves and gestures; males have an oversized claw or chela; used in clashes of ritualised combat of courtship over a female and signal their intentions between conspecifics. The movement of the smaller claw from ground to mouth during feeding explains the crabs' common name; it looks as if the animal were playing the larger claw like a fiddle.
The crab's smaller claw picks up a chunk of sediment from the ground and brings it to the mouth, where its contents are sifted through (making the crab a detritivore). After anything edible is salvaged, be it algae, microbes, fungus, or other decaying detritus, the sediment is replaced in the form of a little ball. The presence of these sediment balls near the entrance to a burrow is a good indication of its occupation. Some experts believe that the feeding habits of fiddler crabs play a vital role in the preservation of wetland environments; by sifting through the sands, they aerate the substrate and prevent anaerobic conditions." From Wikipedia.
en.wikipedia.org/wiki/Fiddler_crab
"Fiddler crabs communicate by a sequence of waves and gestures; males have an oversized claw or chela; used in clashes of ritualised combat of courtship over a female and signal their intentions between conspecifics. The movement of the smaller claw from ground to mouth during feeding explains the crabs' common name; it looks as if the animal were playing the larger claw like a fiddle.
The crab's smaller claw picks up a chunk of sediment from the ground and brings it to the mouth, where its contents are sifted through (making the crab a detritivore). After anything edible is salvaged, be it algae, microbes, fungus, or other decaying detritus, the sediment is replaced in the form of a little ball. The presence of these sediment balls near the entrance to a burrow is a good indication of its occupation. Some experts believe that the feeding habits of fiddler crabs play a vital role in the preservation of wetland environments; by sifting through the sands, they aerate the substrate and prevent anaerobic conditions." From Wikipedia.
en.wikipedia.org/wiki/Fiddler_crab
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