Puerto Rican birds, why do they sing early?


This video from Puerto Rico says about itself:

7 April 2011

Episode 1: Adelaide’s warbler (reinita mariposera)

From Science News:

Warm-up benefit could explain morning birdsong

Dawn tune-up may improve sound for attracting mates

By Susan Milius

6:00am, August 25, 2016

WASHINGTON — Vocally warming up puts more dazzle into a bird’s singing for the day, a new test shows, perhaps helping to explain widespread outbursts of birdsong at dawn.

Males of Puerto Rico’s Adelaide’s warblers (Setophaga adelaidae) start trilling through their repertoires of 30 or so songs while it’s still pitch black. Tracking the songs of individual males showed that the order of performance had a strong effect on performance quality, behavioral ecologist David Logue said August 17 at the North American Ornithological Conference. In the early versions of particular songs, males didn’t quickly change pitch as well as they did later, Logue, of the University of Lethbridge in Canada, and colleagues found.

This was the first test for a warm-up effect for daily singing among birds, Logue said. To catch the full stretch of repetitions of songs, Orlando J. Medina (now with the U.S. Fish and Wildlife Service) had to beat the warblers at getting out of the nest in the morning. His recordings of each of nine males’ morning performance for four days allowed computer analysis of how fast a male swept through his trills.

Time of day alone didn’t explain the improvement in singing. So Logue and study coauthor Hannes Schraft, now at San Diego State University, don’t think that factors like increasing light or rising temperatures could explain the improvements. The robust effect of repetition leads Logue to propose what may be a new explanation for big dawn choruses: Males warming up sooner would fare better in competing for mates. Over time, a melodious arms race could have broken out as earlier warm-ups were beaten by even earlier ones.

Ways to beat heat have hidden costs for birds. Panting, seeking shade affect food foraging: here.

Puerto Ricans protest against pollution


This video says about itself:

Puerto Ricans Protest Toxic Fumigation

23 July 2016

Puerto Ricans are taking to streets to protest the spraying of an anti-Zika pesticide that could have negative impact on the island’s ecosystems.

La Borinqueña, Puerto Rican superheroine


This video says about itself:

La Borinqueña, Afro-Puerto Rican Superhero

24 June 2016

Meet the latest Puerto Rican superhero. Her ultimate goal: Defeat U.S. colonialism.

Puerto Rico Archbishop Calls for End to Island’s ‘Colonial Status’

Image


Archbishop Gonzalez

JSC: Jamaicans in Solidarity with Cuba

Source:  TeleSUR
June 8 2016

  • Archbishop Roberto Gonzalez talking about Puerto Rico
    Archbishop Roberto Gonzalez talking about Puerto Rico’s debt crisis.
    | Photo: Twitter / ‏@Eric_LeCompte
teleSUR spoke to Eric LeCompte, a key advocate in Puerto Rico’s debt crisis, about the Archbishop’s comments.

Ahead of the House vote this week, Puerto Rico’s Roman Catholic Archbishop, Roberto González Nieves OFM has announced his support for Puerto Rico’s debt crisis legislation, according to a press release issued by Jubilee USA Network.

ANALYSIS: 5 Ways the US Treats Puerto Rico Like a Colony

In an op-ed in The Hill, Archbishop Gonzalez noted the crisis is rooted in Puerto Rico’s “colonial status” and called on the people of the island to come together.

Self-determination

“Fundamentally, Puerto Rico is a colony of the United States,” wrote Gonzalez. “Before our island faces the next crisis, we must self-determine who we want to be and our relationship with the United States.”

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