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The article focuses on guano collected by Indigenous people in Peru from the Chincha Island, and mentions Guano Islands Act introduced by senator William Henry Seward. Topics discussed include deposits of phosphorus and nitrogen identified by chemists which replaced guano, increased consumption of phosphorus fertilizer with start of the Green Revolution, and increased crop yields with use of phosphorus.

Discusses the emergence of the guano fertilizer industry in Peru in the 19th century. Implications of the guano industry for Peru; Events that led to the discovery of guano in the Chincha Islands in Peru; Establishment of the trade relations of Peru with Europe with the shipment of guano.

This section presents a reprint of the November 1859 letter sent by chemist Justus von Liebig to "The New York Times" newspaper. Topics discussed include his response to the concerns raised by scientific farming advocate John Mechi over the sewage disposal problem of Great Britain, the importance of maintaining soil nutrition, and the use of guano and bones as fertilizer for corn production.

The article focuses on the efforts of team of seabird specialists aims to save the African Penguin and Natasha Ayres, a veterinarian with the Southern African Foundation for the Conservation of Coastal Birds (SANCCOB). It mentions International Union for the Conservation of Nature (IUCN) classified the African Penguin as endangered in 2010 and remove their guano for use as fertilizer. It also mentions rise in ocean salinity and higher water temperatures.

The article reports on the construction of artificial nests for African penguins in South Africa. It mentions how the guano that the birds originally used was collected for fertilizer, the development of artificial nests to keep the eggs cool in hot weather, and the success of the program.

ABSTRACT Conservation efforts for tree- and snag-roosting bats are challenging because roost sites are difficult and costly to locate. We assessed the ability of scent detection dogs to locate bat roosts using controlled field experiments conducted at 2 sites in northern Arizona, USA, during July and August of 2007, with small bags of bat guano and known bat roosts. Scent detection dogs correctly detected 79% of guano bags and 29% of known bat roosts; but, when searching during shorter time periods for roosts only, dogs correctly detected 77% of known roosts. Factors affecting detection of guano bags included bag height and mass. Factors affecting detection of roosts included height, size of the bat colony, and air temperature. Rest breaks and competition between dogs apparently increased their success rate in finding roosts. Using a scent detection dog to locate roosts was similar in cost to radiotelemetry; however, the use of a scent detection dog was less invasive because the use of dogs precluded the need to capture and radiotag bats. Important considerations influencing the efficacy of using scent detection dogs include training and transportation costs, and skill level of dog handlers. Although some factors limit the ability of scent detection dogs to accurately locate roosts, dogs in our study approximated the roost location to within a 30-m radius, which may be sufficient to protect these areas during management activities. If managers have the ability within an area to retain all large-diameter snags that have bat roost characteristics, then scent detection dogs will likely not provide adequate added value to warrant their survey costs. However, scent dogs could be important for locating roosts of species that are imperiled or of conservation concern. © 2015 The Wildlife Society. [ABSTRACT FROM AUTHOR]

The article offers the author's insights regarding their camp at a drama building that is filled of bat guano. Topics discussed by the author includes the aspects of the condition of the camps during the night time considering the activities of the nocturnal bats in the place, the relationships between campers, and the feeling of affection developed between campers whom she became closed.

The article discusses the decision of the Wisconsin Supreme Court in several cases during year 2011-2012 which includes Admiral Ins. v. Paper Converting Mach. Co., Gister v. American Family Mut. Ins. Co., and Hirschhorn v. Auto-Owners Ins. Co. The Court denied the admiral's motion and applied default rule of Wamboldt and in Hirschhorn v. Auto-Owners Ins. Co., the Court considered guano a pollutant under insurance policy's terms. Judgments were awarded to the plaintiff-patients in Gister case.

The article offers the author's insights regarding deep guano deposits and the past environment buried under the deposits in different caves in South-East Asia. The author says that guano deposits have more value than showing the past ecosystem changes, in which it is also a valuable crop fertiliser. He states that he is interested in finding the locations of the caves with deep guano deposits to collect past material to help determine the conditions of the past environments. He notes that bits of charcoal can also be recovered as proxy for fires and other chemical inhibitors of climate. He also mentions that digging guano deposits help explain the biodiversity distribution in South-East Asia, as well as the ice age forests and savannas in the submerged Sundaland continent.

The article presents lesson plans for middle school and high school education in the U.S. focusing on science topics including hibernation in bears, tsunamis and the importance of guano.

The article provides information on the nutrient-rich bird droppings, called guano, of the Atlantic and Pacific islands, in the context of their use as fertilizers for farming, and discusses the contribution of guano in understanding the climatic changes like global warming and hurricanes.

The article deals with the use of bird droppings to discover places around the world. The guano found its way to fields across Great Britain, where farmers cautiously experimented. One of the first to report their findings was James Johnston, professor of chemistry at Durham University. His 20-page article, On Guano, published in the 1841 Journal of the Royal Agricultural Society, reported favorably on the results tram five farms where guano was tested against traditional manure, Farmers were encouraged to try it out for themselves in a scientific manner and to decide whether it was for them. INSET: The Navassa Island revolt.

The article discusses the author's experience in detecting artefacts in a rape field. On his expedition over the rape field, the author was able to recover a tinned rowel spur that dates back from circa 1700, complete with its two terminal attachments that have been tinned. He also recovered a couple of halfpennies and a 19th century bag seal for Peruvian guano.

Limited soil nitrogen (N) availability is a common problem in organic vegetable production that often necessitates in-season fertilization. The rate of net nitrogen mineralization (Nmin) from four organic fertilizers (seabird guano, hydrolyzed fish powder, feather meal, and blood meal) containing between 11.7% and 15.8% N was compared in a laboratory incubation. The fertilizers were mixed with soil from a field under organic management and incubated aerobically at constant moisture at 10, 15, 20, and 25°C. Nmin was determined on samples extracted after 1, 2, 4, and 8 weeks. Rapid Nmin was observed from all fertilizers at all temperatures; within 2 weeks between 47% and 60% of organic N had been mineralized. Temperature had only modest effects, with 8-week Nmin averaging 56% and 66% across fertilizers at 10 and 25°C, respectively. Across temperatures, 8-week Nmin averaged 60%, 61%, 62%, and 66% for feather meal, seabird guano, fish powder, and blood meal, respectively. Cost per unit of available N (mineralized N + initial inorganic N) varied widely among fertilizers, with feather meal the least and fish powder the most expensive. [ABSTRACT FROM AUTHOR]

Provides information on the economic aspects of extracting sea bird guano or bird dropping remains in order to create organic fertilizers in Peru. Sustainable management of natural resource; Habitat and breeding of sea birds; Bird conservation project of Guano Management Co.; Effect of El Nino on the bird population.

The article presents reader feedback regarding articles from previous issues and other journals. Topics include the use of crystals in healing as described in the book "Crystal Energy," the use of suspended collections of food waste to attract seagulls to create piles of guano that naturally reflect solar energy in an effort to mitigate climate change, and the U.S. government's classification scheme for tracking subjects of patents.

Describes the Ballesta Islands off the southern desert coast of Peru. Government's efforts to protect and preserve the islands; Abundance of sea birds' guano; History of the country's guano trade; Population of black and white piqueros and seals.

Relates the experiences of the author who owns a 1911-built barn frequented by pigeons. Description of the barn; Decision of the author to allow all sorts of creatures, such as possums, swallows and starling, to live in the barn; Initial entry of pigeons into the barn; Quick rise in the number of pigeons; Problems of acrid odor and cleaning the pigeons' guano; Methods used to drive out the pigeons; Use of gunplay to finally drive out the pigeons.

Examines significance of a booby chick's position in areas outside or inside a guano ring. Failure of many birds to recognize their own young; Death of nest mates; Complexity of social behavior in nesting boobies; Evolutionary advantage for family lines; Association of production of eggs and young to the quality and style of feeding in parents.

The article presents the American sport caving featuring Tom Aley, a maestro for discovering caves and making descents and climbs in the Sierra Nevada admired by cavers for their technical problems. He was hired as a hydrologist and came upon Tumbling Creek Cave which was later designated as a National Natural Landmark. It indicates that the Cave is rich in guano, the most common food-fuel-energy resource found in caves. It cites Aley's belief that practicing environmental harmony can improve the quality of life and decrease costs of living.

Focuses on the significance of sea birds Cormorants and Boobies for the people of Peru. Use of guano by the people of Peru; Role of Peru's guano reserves in international trade; Steps taken by the people of Peru to take care of the birds.

Focuses on guano producing birds of Peru. Climatic condition of Peru which preserves bird guano of the nation; Role of Peruvian birds to aid world's agriculture industry; Sources of food for the guano producing birds of Peru; Features of nests built by the guano producing birds of the nation.

The article focuses on plans to open up double-crested cormorants for hunting in Middle Island, Canada on Lake Erie. It states that the provincial government could provide licensed hunter the ability to kill up to 50 cormorants a day which according to the nonprofit Animal Alliance of Canada is an indefensible culling which is not based on science. It comments that an endangered species of wild hyacinth can be damaged by cormorant guano.

The article discusses the DNA barcoding which can identify the exact species of insect eaten by bats with the use of DNA left in bat guano. It refers to DNA barcoding as a short region of a single gene that can be read and used as a marker with the selected region as part of a gene called cytochrome oxidase subunit 1 (COI). It cites the ant species as good indicators of a forested habitat found only guano from bats in the forested environment.

The article reports that excretions of Arctic seabirds seem to be causing pollution hotspots in northern coastal ecosystems. Wind and ocean currents have previously been blamed for high levels of toxic chemicals such as mercury, dioxins and polychlorinated biphenyls in Arctic air, soils, water, animals and people. Jules Blais of the University of Ottawa, Canada, found that the real culprits might be Arctic seabirds, which can cover distances of 1000 kilometers on extended ocean feeding trips. The birds nest in dense cliff-side colonies of more than 20,000 individuals. Compared with soil and water far away from the bird colonies, ponds in the direct path of guano run-off had up to 10 times the amount of hexachlorobenzene, 25 times the amount of mercury and 60 times the amount of the pesticide DDT.

Reports on the accumulation of penguin guano on 19th century Antarctic settlements. Detection of the guano accumulation by a team from New Zealand; Damages caused by penguin guano; Reason why bird barriers are not effective in Antarctic regions.

The article discusses an experiment conducted by Doctor Charles A. R. Campbell using bats aimed at combating malaria. A series of experiments which he conducted in 1902 with the use of boxes scented with bat guano to attract bats failed. Following the failure of his experiments, he began to study the numerous bat caves in San Antonio, Texas. The world's first bat tower was established by Campbell in Texas in 1909. The people of San Antonio believed that bat towers contributed to the removal of the malaria from the city because statistics indicate that there was a constant and dramatic decrease in malaria rate during the period from 1903 to 1930.

The article focuses on the measures taken by local authorities and residents from Radford and Richmond, Virginia to combat the infestation of flocks of starlings, which feast on the grains, pines, and hardwoods, and produce guano and noise. It states that wildlife experts sprayed the roosting starlings with mixed water and industrial detergent and launching salvos to drive away starlings. Moreover, it says that starlings are plaguing other localities such as in Scotland Neck, North Carolina.

The article recognizes the efforts that protect sea birds whose droppings make a high-grade fertilizer called guano in Peru. Compania Administradora del Guano is an organization which was set up in 1909 to protect the guano birds against human egg robbers, hunters, and their natural enemies. Security measures, such as prohibition of passing ships to blow their whistles, are always maintained. Because of these efforts, the birds have increased from 77,000 tons in 1909 to 240,800 tons in 1950.

The article focuses on photo postcard dated March 16, 1933 in which cowboy Jim White had discovered underground wonder that became known as Carlsbad Carvens and mentions winch-operated iron bucket he used both to haul up the guano.

The article focuses on research published in the June 2015 issue of "Biotropica" concerning the ecological advantage of hollow trees. It states ecologist Christian Voigt and colleagues tested soils around hollow trees, which are often used as roosting sites for bats, and at ten artificial bat roosts in Costa Rica. It mentions they tested for a nitrogen isotope which is more common in bat guano than forest soils and found the trees are absorbing nitrogen from bat guano.

The article offers information on how bird guano or droppings help in the formation of clouds and possibly cool the North Pole.

The article focuses on the Peruvian Guano Islands as home of the largest seabird colonies in the world including pelicans and cormorants. Topics include the guano left behind by birds as fertilizer exported by Peru in the 1800s as international commodity, end of the Guano Era in 1864 with the Spanish invasion and the Peruvian war over guano and nitrate deposits with Chile. It also notes the creation of the Guano Islands and Capes National Reserve in 2009.

A picture of trees and the ocean is presented.

The article discusses a project aimed at making bat guano mining safe for the bats that produce it. Being a natural fertilizer, guano has been mined worldwide for centuries but improper mining has threatened the bats. To help address this problem, the Emerging Wildlife Conservation Leaders (EWCL) training program fields trainees on a wildlife conservation campaign every two years. The EWCL class of 2010 developed a set of international guidelines for safe and sustainable guano mining.

The article discusses the practice of hydroponics, or the method of growing plants using nutrient-rich solutions, with our without a medium or substrates such as peat, sand gravel. The process refers to a range of water-based cultures that deliver nutrients solutions like inorganic salt fertilizers and semi-soluble organic materials such as bat guano or bone meal. Hydroponics do not need pesticides or herbicides because it occur in highly controlled spaces and without soil, and plants rely on the nutrient solutions. Hydroponics are possible in urban areas where citizens may engage in rooftop gardening.

The article focuses on the significance of bats for the environment and for people. It highlights the shrinking population of the bats in the U.S., Malaysia and several tropical countries, which affects the well-being of human populations. It states that bats pollinate plants, provide guano for fertilizer and eat insect pests that destroys crops. It notes the efforts of some organizations in Europe which protect and stop the decline of the bat's population.

Presents information on different types of tea fertilizers for the garden. Alfalfa meal; Blue-green algae; Kelp; Bat guano; German chamomile flowers.

Features several plants in Australia that thrive on the droppings of seabirds. Features of Leafy Peppercress, an ornithocoprophile; Rookery specialists; Reason for the absence of rookery specialists from regions with a long history of farming.

Presents several questions and answers related to gardening. Information on planting trumpet vines; Growing seedlings indoors; Pest prevention; Using bat guano as fertilizers.

Responds to an inquiry on whether it is dangerous to handle bat droppings from an old attic. Remarks of Dr. Paul Robertson of Bat Conservation International; Fungus in manure that causes histoplasmosis when inhaled by humans; Strategy to prevent histoplasmosis.

The article discusses the history of the use of guano as fertilizer. It describes scientific expeditions to colonies in Central and South America made by the German geographer Alexander van Humboldt and French botanist Aimé Bonpland from 1799 to 1804, where they discovered how guano greatly aided in the growth of plants. The U.S. Congress' passage of the Guano Islands Act in 1856 to allow U.S. citizens to possess unoccupied lands containing guano is also mentioned.