Sentences with phrase «of guano»

This ready and seemingly inexhaustible supply of phosphorus, in the form of guano phosphate (seabird droppings), dramatically increased Australian crop yields, and agricultural productivity following the Second World War.

Lead author Dr Steve Roberts from BAS says: «When we first examined the sediment cores we were struck by the intense smell of the guano in some layers and we could also clearly see the volcanic ash layers from nearby Deception Island.

Because Antarctica's dry, cold conditions preserve penguin detritus, each colony accumulates piles of guano, as well as old feathers, eggshells, and bones, especially those of chicks.

Conveniently enough for the researchers, tsunami deposits in this cave are demarcated by dark layers of guano deposited between tsunamis by the cave's resident bats.

The bay at Manzanillo is perfect for snorkeling or simply enjoying the unspoiled beauty of millions of years of evolution with the spectacular view of the guano - covered islands called Los Morros de Potosí which resemble a pair of half - submerged elephants (with a little imagination), a favorite hiding - place for pirates in days of yore.

In the case of Bracken Cave, this is left preserved and protected inside the cave and, once the bats have migrated south for the winter, up to 50 tonnes of guano are extracted per year.

Bracken Cave is home to the world's largest known bat colony: some 20 million Mexican free - tail bats who besides having the ability to eat approximately 200 tonnes of insects nightly, also deposit vast quantities of guano.

Experiments with special reference to this end, in six different parts of the kingdom of Saxony, showed how enormously the corn and flesh production of Europe has been increased by the yearly importation of 100,000 tons of guano.

«Mass aggregations of birds may have a negative impact, promoting water eutrophization by means of their guano input (guanotrophication), since microorganisms need bioavailable N and P for the mineralization of organic matter,» says Reche.

Isotopic analysis of the guano pile in the M?gurici Cave resulted in a near annual record of winter precipitation for the region.

Not every stage in Hohokum is bright and colorful, as evidenced by today's reveal of the Guano Factory stage.

So only a few of the guano pellets are likely contaminated.

The flat surface, however, was popular with gulls and seabirds and, because of the amount of guano, the rainshed was only used occasionally.

Birds play an important role in a wide variety of ecosystems as both predator and prey, in controlling insect populations, pollinating and seed dispersal for many plants, and in releasing nutrients on to land and sea in the form of guano.

If you can stand the smell of guano and can endure the approximate 150 metre or 15 - minute descent, you'll reach the freshwater pool at its base.

But the pink granite erodes the same way, leaving arches to frame your view of the guano - spattered seabird rocks jutting from the surf.

Another gift that bats provide to farmers is that of guano.

Sunset over Bahía El Palmar and one of the guano - covered islands in front of Ixtapa's hotel zone.

(4) Any island, rock, or key containing deposits of guano, which may, at the discretion of the President, be considered as appertaining to the United States.