A checklist of marine crustaceans known from Easter Island

Crustaceana ◽  
2016 ◽  
Vol 89 (1) ◽  
pp. 63-84 ◽  
Author(s):  
Patricio De los Ríos Escalante ◽  
Eliana Ibáñez Arancibia
Keyword(s):  
Complex System ◽  
South America ◽  
Endemic Species ◽  
Terrestrial Ecosystem ◽  
Easter Island ◽  
Point Of View ◽  
Marine Crustaceans ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Pacific Asia

Easter Island constitutes the most isolated terrestrial ecosystem in the Pacific Ocean. The fauna of that site is interesting from a biogeographical point of view because species from Pacific Asia and South America can be found there, as well as endemic species. The aim of the present study was to compile a literature review of published records of marine Crustacea from Easter Island with the emphasis on the heterogeneity in habitats reported for each species. The results confirm the presence of species otherwise known from Pacific Asia, South America, as well as the expected endemic species. In spite of the little information that is generally provided in the habitat records for most species, it may still be possible to find a marked heterogeneity of ecosystems, together generating a complex system that warrants more detailed studies.

Darwin's Early Notes on Coral Reef Formation

1984 ◽  
Vol 3 (2) ◽  
pp. 160-163 ◽  
Author(s):  
Frederick Burkhardt
Keyword(s):  
Coral Reef ◽  
South America ◽  
Point Of View ◽  
South American ◽  
American Continent ◽  
The Pacific ◽  
The Pacific Ocean ◽  
South American Continent ◽  
Reef Formation ◽  
Water Coral

Darwin's letters and some rough notes found in his field notebooks of 1835 confirm the statement in his Autobiography that he had formulated his theory of coral reef formation before the Beagle left South America and before he had seen a coral reef. His geological observations having convinced him of the elevation of the South American continent, Darwin predicted that evidence of a compensatory gradual subsidence of the Pacific Ocean floor would be found in the existence of shallow-water coral genera in the Pacific reef formations. The first draft of the theory was written on board the Beagle shortly after seeing the reefs of Moorea in November 1835. After visiting the Cocos (Keeling) Islands he wrote a summary of his view in a letter of April 1838, in which he expressed his conviction that he had found an explanation which would "put some of the facts in a more simple and connected point of view, than that in which they have hitherto been considered".

scholarly journals IN SEARCH OF POLYNESIAN ORIGINS: WITH SPECIAL REFERENCE TO LAPITA CULTURE

1986 ◽  
Vol 7 (2) ◽  
pp. 55-75
Author(s):  
Timbul Haryono
Keyword(s):  
New Zealand ◽  
South America ◽  
Human Movement ◽  
Cultural Development ◽  
Easter Island ◽  
The West ◽  
The North ◽  
The Pacific ◽  
The Pacific Ocean ◽  
North And South

The islands of Polynesia make up the largest group among the islands in the Pacific ocean. This group, in fact, consist of many islands forming a triangle. The main groups in the west are the Tongan, and Samoan and Ellice groups. The Cook, Society and Tuamotus lie in the east, with Easter Island as a far-off isolate, while the Hawaiian Islands and New Zealand are separated to the north and south respectively of the main west-east belt. The location of these islands between Asia in the west, Australia in the south and South America continent in the east is of considerable significance to the peopling and cultural development of the region. Many scholars have therefore been led to postulate the route of human movement into these scattered islands. Archaeological and anthropological researches have been carried out within the area to determine where the Polynesians originally come from. Various hypotheses have been proposed thereafter.

Past Sea Surface Temperature of the Pacific Ocean of South America a Reference for Environmental Archeology

2022 ◽  
Author(s):  
Hector Luis D’Antoni ◽  
Lidia Susana Burry ◽  
Patricia Irene Palacio ◽  
Matilde Elena Trivi ◽  
Mariano Somoza
Keyword(s):  
Pacific Ocean ◽  
South America ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Sea Surface ◽  
The Pacific ◽  
The Pacific Ocean

Confronting a Mercantile Elite: Bourbon Reformers and the Merchants of Lima, 1765–1796

2004 ◽  
Vol 60 (04) ◽  
pp. 519-558
Author(s):  
Patricia H. Marks
Keyword(s):  
South America ◽  
Pacific Coast ◽  
Point Of View ◽  
Economic Effects ◽  
Port City ◽  
Tax Reforms ◽  
Positive Effects ◽  
Colonial Peru ◽  
The Pacific ◽  
Significant Change

After Spain’s defeat in the Seven Years’ War (1757-1763), when the British had occupied Havana and Manila, a series of territorial, commercial, and tax reforms brought significant change to the viceroyalty of Peru. Their economic effects have been matters for debate ever since. Some historians have emphasized their positive effects. Following promulgation of the Reglamento de comercio libre of 1778, the volume and value of European manufactures exported to the Pacific coast of Spanish South America increased. Lima and its port city, Callao, remained important as commercial centers of Spanish South America. But others suggest that the viceregal capital—home to a powerful mercantile elite, the magnates of the consulado (merchant guild) of Lima—suffered a decline in its economic fortunes, as did the entire viceroyalty. Support for this point of view was widespread in late colonial Peru. In spite of the evidence for growth, a rising chorus of complaint bemoaned the increasing poverty of the viceroyalty in general and Lima in particular. How can we account for this discrepancy?

Constitutional Law in 1959–1960

1961 ◽  
Vol 55 (1) ◽  
pp. 112-135
Author(s):  
David Fellman
Keyword(s):  
United States ◽  
Gulf Of Mexico ◽  
Supreme Court ◽  
The United States ◽  
Point Of View ◽  
Important Place ◽  
The Public ◽  
The Pacific ◽  
The Supreme Court ◽  
The Pacific Ocean

The personnel of the Supreme Court remained unchanged during the 1959 Term. From the point of view of the decisions rendered in the public law field, this was an undistinguished Term. Few of the constitutional cases are likely to hold an important place among the precedents, and a considerable number of well-argued decisions turned entirely upon private law questions. But there was no dearth of writing, during the period under review, about the Court as an institution and about the Justices who sit there.Note may be made at this point of the latest chapter in the long dispute over the so-called tidelands. In 1947 the Supreme Court had ruled that, as against the claims of California, the United States possessed paramount rights in lands underlying the Pacific Ocean seaward from the low-water mark. Similar rulings were made in 1950 as regards the claims of Louisiana and Texas in the Gulf of Mexico. But with the enactment in 1953 of the Submerged Lands Act, the United States relinquished to the coastal states all of its rights in all lands beneath navigable waters within the three-mile limit, and in excess of that limit within state boundaries as they existed at the time a state became a member of the Union, or as theretofore approved by Congress. The limit of the grant was three leagues (about ten and one-half miles) in the Gulf of Mexico and three geographical miles in the Atlantic and Pacific. The actual extent of the claims of the coastal states involved in the question was therefore left to be settled by litigation.

Distribution of 65Zn In Tissues of Two Marine Crustaceans Determined by Autoradiography

1968 ◽  
Vol 25 (11) ◽  
pp. 2461-2466 ◽  
Author(s):  
F. A. Cross ◽  
S. W. Fowler ◽  
J. M. Dean ◽  
L. F. Small ◽  
C. L. Osterberg
Keyword(s):  
Pacific Ocean ◽  
Vertical Distribution ◽  
Food Web ◽  
Euphausia Pacifica ◽  
Oregon Coast ◽  
Marine Crustaceans ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Vertical Distribution

In the benthic amphipod Anonyx sp., and the euphausiid Euphausia pacifica Hansen, 65Zn accumulated from seawater was shown by autoradiography to be localized predominantly in the exoskeleton and interstitial spaces of the myofibrils. Also, the gut and hepatopancreas of Anonyx sp. and the eye of E. pacifica contained 65Zn. The presence of 65Zn in crustacean exoskeletons may affect the efficiency of transfer of 65Zn through the food web and the vertical distribution of 65Zn in the Pacific Ocean along the Oregon coast.

scholarly journals Two continents and two names for a Neotropical colletid bee species (Hymenoptera: Colletidae: Neopasiphaeinae): Hoplocolletes ventralis (Friese, 1924)

2015 ◽  
Author(s):  
Eduardo A B Almeida ◽  
Fábio B Quinteiro
Keyword(s):  
Pacific Ocean ◽  
South America ◽  
Comparative Study ◽  
Neotropical Species ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Phylogenetic Hypotheses ◽  
First Time

Neopasiphaeinae bees (Apoidea: Colletidae) are well known for their Amphinotic distribution in the Australian and Neotropical regions. Affinities between colletid taxa in Australia and South America have been speculated for decades, and have been confirmed by recent phylogenetic hypotheses that indicate a biogeographic scenario compatible with a trans-Antarctic biotic connection during the Paleogene. Despite this proximity, no species occurs on both sides of the Pacific Ocean, but the Neotropical species Hoplocolletes ventralis (Friese, 1924), which was described as an Australian taxon due to an error in the specimen labels. This mistake was recognized by C.D.Michener 50 years ago. We herein report that the same labeling problem also happened with Dasycolletes chalceus Friese, 1924, which remained as a tentatively placed species in the Australian genus Leioproctus until now. Moreover, Dasycolletes chalceus is interpreted as a synonym of Dasycolletes ventralis. We also provide a revised diagnosis for Hoplocolletes, describe the male of H. ventralis in detail for the first time, including a comparative study of its genitalia and associated sterna.

Impacts of El Niño and La Niña Cycles: Systems and Sectors

2008 ◽  
Author(s):  
Cynthia Rosenzweig ◽  
Daniel Hillel
Keyword(s):  
Pacific Ocean ◽  
El Niño ◽  
El Nino ◽  
Terrestrial Ecosystem ◽  
Terrestrial Ecosystems ◽  
La Niña ◽  
Enso Events ◽  
La Nina ◽  
The Pacific ◽  
The Pacific Ocean

Perturbations of the climate system caused by El Niño and La Niña events affect natural and managed systems in vast areas of the Pacific Ocean and far beyond it. (Other oscillations affect systems and sectors in wide swaths of the world as well.)1 El Niño–Southern Oscillation (ENSO) events have been associated with ecosystem disruptions and forest fires, crop failures and famines, disease epidemics, and even market fluctuations in various regions. The forms and degrees of impact depend not only on the strength and duration of an El Niño or La Niña event and its associated teleconnections, but also on the state, sensitivity, and vulnerability of the affected system and its biotic community, as well as its human population. The underlying characteristics of ecosystems and human societies in each region are important factors in their susceptibility to ENSO-related damages. Variation may be enhanced as ENSO effects ripple through natural and managed ecosystems. The underlying health of the affected biota, interrelationships among different biotic associations, and pressure by humans all affect marine as well as terrestrial ecosystem responses to ENSO events. Impacts on human systems can be both direct and indirect. Some ENSO phenomena, such as severe storms, affect human lives and infrastructures directly. Other impacts occur through alterations in the marine and terrestrial ecosystems and water supplies upon which human populations ultimately depend. In this chapter we consider some of the impacts that ENSO and other oscillations (described with their teleconnections in chapter 1) have on marine and terrestrial ecosystems and on human-managed systems apart from agriculture. The significant and geographically widespread changes that El Niño events induce in the Pacific Ocean alter conditions for various marine communities. These alterations include dramatic changes in the abundance and distribution of organisms, associated collapses of commercial fisheries, and ensuing consequences affecting human livelihood (Glantz, 2004; Lehodey et al., 2006). Some of the effects are well documented. Reductions in primary production of up to 95% were measured in the eastern equatorial Pacific in 1982–83 (Barber and Chavez, 1983.) Large changes in ecosystem structure and productivity have also been recorded in other parts of the Pacific Ocean, including the western Pacific and in the North Pacific subtropical gyre (north of the Hawaiian Islands) (Karl et al., 1995).

5. Exploration and the Enlightenment

2015 ◽  
pp. 62-82
Author(s):  
Stewart A. Weaver
Keyword(s):  
Eighteenth Century ◽  
South America ◽  
New World ◽  
James Cook ◽  
The Enlightenment ◽  
The Pacific ◽  
Age Of Discovery ◽  
Figure Of The Earth ◽  
The Pacific Ocean ◽  
Scientific Purpose

‘Exploration and the Enlightenment ’ considers a “Second Great Age of Discovery” that came about during the eighteenth-century Enlightenment. It began with the 1735 Geodesic Mission to the Equator, designed to ascertain the true figure of the Earth. Never before had so large and learned a group of Europeans headed into the remote interior of the New World for an expressly scientific purpose or the results of an expedition been so elaborately publicized in maps, journals, and official reports back home. This trip is seen as the prototype of the modern exploring expedition. The voyages of Captain James Cook in the Pacific Ocean and Alexander von Humboldt's trip to South America provide further examples of Enlightenment exploration.

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