cool-critters:

Ocellated turkey (Meleagris ocellata)

The ocellated turkey is a species of turkey residing primarily in the Yucatán Peninsula. It is a relatively large bird, at around 70–122 cm long.The body feathers of both sexes are a mixture of bronze and green iridescent color. Turkeys spend most of the time on the ground and often prefer to run to
escape danger through the day rather than fly, though they can fly
swiftly and powerfully for short distances as the majority of birds in
this order do in necessity. Roosting is usually high in trees away from
night-hunting predators such as jaguars and usually in a family group. The Ocellated Turkey is a generalist in terms of its feeding habits.
They are known to feed on a wide variety of forage including but not
limited to insects such as beetles, moths, and leafcutter ants, grass
seeds, nuts, and leaves.

photo credits: Dennis Jarvis

csnews:

Growing noise in the ocean can cause dolphins to change their calls

University of Maryland Center for Environmental Science – October 24, 2018

Noise levels in the world’s oceans are on the rise, but little is known about its impact on marine mammals like dolphins that rely on sound for communication. Researchers from the University of Maryland Center for Environmental Science laid underwater microphones on the bottom of the Atlantic Ocean to find out more about the ambient noise levels in the area off the coast of Maryland. They found that dolphins are simplifying their calls to be heard over noise from recreational boats and other vessels in nearby shipping lanes.

“It’s kind of like trying to answer a question in a noisy bar and after repeated attempts to be heard, you just give the shortest answer possible,” said Dr. Helen Bailey, a marine biologist with the University of Maryland Center for Environmental Science who studies protected species in order to understand their habitat use and inform conservation and management. “Dolphins simplified their calls to counter the masking effects of vessel noise.”

Helen Bailey and her assistant Leila Fouda studied underwater ambient noise levels and whistle calls by bottlenose dolphins in the western North Atlantic, which experiences relatively high levels of vessel traffic between shipping lanes and recreational boaters off the coast of Maryland. Acoustic recordings were collected using hydrophones deployed to the bottom of the ocean in the leased Wind Energy Area, approximately 20 miles off the coast.

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