Stable isotope record of planktonic foraminifera of the Atlantic Ocean

The thermal structure of the upper ocean (0-1000 m) is set by surface heat fluxes, shallow wind-driven circulation, and the deeper thermohaline circulation. Its long-term variability can be reconstructed using deep-dwelling planktonic foraminifera that record subsurface conditions. Here we used six species (Neogloboquadrina dutertrei, Globorotalia tumida, Globorotalia inflata, Globorotalia truncatulinoides, Globorotalia hirsuta, and Globorotalia crassaformis) from 66 core tops along a meridional transect spanning the mid-Atlantic (42°N to 25°S) to develop a method for reconstructing past thermocline conditions. We estimated the calcification depths from d18O measurements and the Mg/Ca-temperature relationships for each species. This systematic strategy over this large latitudinal section reveals distinct populations with different Mg/Ca-temperature relationships for G. inflata, G. truncatulinoides, and G. hirsuta in different areas. The calcification depths do not differ among the different populations, except for G. hirsuta, where the northern population calcifies much shallower than the southern population. N. dutertrei and G. tumida show a remarkably constant calcification depth independent of oceanographic conditions. The deepest dweller, G. crassaformis, apparently calcifies in the oxygen-depleted zone, where it may find refuge from predators and abundant aggregated matter to feed on. We found a good match between its calcification depth and the 3.2 ml/l oxygen level. The results of this multispecies, multiproxy study can now be applied down-core to facilitate the reconstruction of open-ocean thermocline changes in the past.

The whole works of John Flavel, late minister of the gospel at Dartmouth, Devon.

I. The life of John Flavel. The fountain of life.--II. The method of in the gospel-redemption. Pneumatologia; a treatise of the soul of man.--III. Pneumatologia (cont.) A practical treatise of fear. The righteous man's refuge. A blow at the root; or, The causes and cure of mental errors. Vindiciarum vindex. The second appendix; of Antinomianism. A sermon on gospel-unity.--England's duty. Mount Pisgah. Divine conduct; or, The mystery of Providence. Wonderful sea-deliverances. Antipharmacum saluberrimum. Tidings from Rome; or, England's alarm.-- V. Husbandry spiritualized; or, The heavenly use of earthly things. Navigation spiritualized; or, A new compass for seamen. [Miscellaneous tracts and sermons]--VI. Preparations for sufferings. The balm of the covenant. An exposition of the Assembly's Shorter catechism. A reply to Mr. Philip Cary's Solemn call. Sacramental meditations. [Miscellaneous tracts and sermons].

Recherches historiques sur la ville de Besançon. Établissements civiles et religieux. Beaupré.

Mode of access: Internet.

Miscellaneous pamphlets.

Each pamphlet has separate paging and title or caption title.

Levels of PCBs and trace metals in Crab Orchard Lake sediment, benthos, zooplankton and fish /

"HWRIC Project number HWR 87027."

Hopes for English religion,

Hopes for English religion.--Our Catholic inheritance.--University sermons; I. The Church and the future. II Freedom and authority. III. Christianity and culture. IV. The eternal refuge.--The need of God.--The Pharisee and the publican.--"Rejoice evermore."--Service.--'There was silence in heaven.'--Angelic ministry.--The ideal of a university life.--The ineluctable charm.

Wildlife and America : contributions to an understanding of American wildlife and its conservation /

Cosponsored by U.S. Fish and Wildlife Service, Forest Service, and the National Oceanic and Atmospheric Administration.

Entre el terror y la solidaridad : La influencia de la revolución haitiana en las independencias de Venezuela y Nueva Granada (1804-1825)

En este trabajo me propongo analizar la influencia de la revolución de Haití en las independencias de Venezuela y Colombia durante los años 1804-1825. Miintención es demostrar que las repercusiones del proceso haitiano fueron vastas, complejas y sufrieron importantes cambios durante el transcurso de los años. En líneas generales, la revolución generó pánico entre las elites criollas y peninsulares y esperanzas entre grupos de esclavos y pardos. Inicialmente los sectores criollos revolucionarios buscaron evitar todo contacto con la isla y eludir el modelo insurgente haitiano por considerar que produciría en la Tierra Firme una "guerra de razas" y una hecatombe similar a la que, en su opinión, allí había acontecido. Sin embargo, a partir de 1812-1813 debido a las dificultades de la guerra de independencia una fracción de la elite criolla comenzó a estrechar vínculos con la República del Sur de Haití a través de contactos diplomáticos y corsarios. Estas primeras relaciones, más bien tímidas, fueron la condición de posibilidad de un cambio importante que sobrevino en 1816. En dicho año, debido a la reconquista de la expedición realista, la mayoría de los líderes independentistas huyeron de Tierra Firme y tuvieron que exiliarse en Haití, uno de los pocos lugares donde encontraron refugio y apoyo. En aquel contexto, se dio el pacto entre Alexandre Petión y Simón Bolívar, por el cual el primero se comprometió a aportar armas, barcos y hombres a la causa patriota a cambio de la emancipación de los esclavos hispanoamericanos. Este acuerdo fue fundamental ya que no sólo posibilitó la exitosa contraofensiva independentista, sino que además le dio un cariz social al proceso revolucionario de Venezuela y Colombia. Así, a partir de 1816 y hasta 1821, se dieron numerosos contactos e incluso el gobierno de Jean Pierre Boyer (sucesor de Alexandre Petión) colaboró con otras dos expediciones a cargo de Gregor Mac Gregor para liberar Panamá y Río Hacha. Sin embargo, el cambio no fue total y aún durante estos años, los líderes criollos continuaron teniendo reparos frente al peligro de la explosión de un nuevo Haití en la Tierra Firme hispana. Por último, el fin de la guerra de independencia abrió un nuevo contexto en el cual aquellos miedos se intensificaron debido a la movilización social interna. Esto derivó en nuevo alejamiento y el gobierno de Colombia no sólo se negó a mantener relaciones con Haití, sino que incluso lo excluyó del Congreso de Panamá.

Do harvest refuges buffer kangaroos against evolutionary responses to selective harvesting?

There is a wealth of literature documenting a directional change of body size in heavily harvested populations. Most of this work concentrates on aquatic systems, but terrestrial populations are equally at risk. This paper explores the capacity of harvest refuges to counteract potential effects of size-selective harvesting on the allele frequency,of populations. We constructed a stochastic, individual-based model parameterized with data on red kangaroos. Because we do not know which part of individual growth would change in the course of natural selection, we explored the effects of two alternative models of individual growth in which alleles affect either the growth rate or the maximum size. The model results show that size-selective harvesting can result in significantly smaller kangaroos for a given age when the entire population is subject to harvesting. In contrast, in scenarios that include dispersal from harvest refuges, the initial allele frequency remains virtually unchanged.

Archaeology and age of a new hominin from Flores in eastern Indonesia

Excavations at Liang Bua, a large limestone cave on the island of Flores in eastern Indonesia, have yielded evidence for a population of tiny hominins, sufficiently distinct anatomically to be assigned to a new species, Homo floresiensis(1). The finds comprise the cranial and some post-cranial remains of one individual, as well as a premolar from another individual in older deposits. Here we describe their context, implications and the remaining archaeological uncertainties. Dating by radiocarbon (C-14), luminescence, uranium-series and electron spin resonance (ESR) methods indicates that H. floresiensis existed from before 38,000 years ago (kyr) until at least 18 kyr. Associated deposits contain stone artefacts and animal remains, including Komodo dragon and an endemic, dwarfed species of Stegodon. H. floresiensis originated from an early dispersal of Homo erectus ( including specimens referred to as Homo ergaster and Homo georgicus)(1) that reached Flores, and then survived on this island refuge until relatively recently. It overlapped significantly in time with Homo sapiens in the region(2,3), but we do not know if or how the two species interacted.

Does the cutting of lucerne (Medicago sativa) encourage the movement of arthropod pests and predators into the adjacent crop?

Lucerne (Medicago sativa) has been suggested as an ideal refuge habitat as part of an integrated pest management (IPM) program because it harbours high numbers of beneficial arthropods. Whether or not cutting of lucerne encourages the movement of these beneficials into adjacent target crops is unknown. Vacuum samples were used to determine the effects of cutting lucerne on arthropod abundance (pests and predators) within lucerne and adjacent soybean (Glycine max) crops. Vacuum-sample collections of arthropods were conducted before and after lucerne cutting on seven occasions in four fields over two seasons. In the lucerne, 10 m by 1 m strips parallel to the crop interface were sampled at 5, 10, 15, 20 and 30 m from the interface. In the soybean, 10 m of row were sampled at the same distances from the crop interface. The abundance of predators in lucerne was reduced immediately after cutting at all distances from the interface. Predator abundance in soybean did not show any change. The cutting of lucerne significantly reduced pest numbers within the lucerne but had little effect on pest abundance in the adjacent soybean. The temporal pattern in pest and predator abundance was very different for each field sampled. Generally, arthropods decreased in abundance after cutting and gradually increased as the lucerne grew back. In soybeans, arthropod numbers fluctuated regardless of the cutting of the lucerne. Cutting of lucerne alone does not guarantee movement of predators into the adjacent target crop. The presence of lucerne fields within a cropping area may have some impact on regional predator populations, and so still be useful for IPM programs, but this has yet to be tested critically.

Year-round presence of dugongs in Pumicestone Passage, south-east Queensland, examined in relation to water temperature and seagrass distribution

Pumicestone Passage is a narrow waterway that lies to the north of and adjacent to Moreton Bay, and between mainland Queensland and Bribie Island, Australia. Anecdotal reports have suggested that the Passage is home to dugongs year-round despite winter water temperatures that are known to cause dugongs to migrate elsewhere. To examine the pattern of distribution and abundance of dugongs within the passage on a year-round basis, eight years of sightings data collected by a charter boat operator were examined. Dedicated aerial surveys of the passage were also conducted at two-monthly intervals over two years, and more intensively over a single winter. Dugong sightings were examined in relation to water temperatures and seagrass prevalence. The number of dugongs sighted in the area on any one survey varied from 0 to 13. Dugongs were seen in all months of the year and in each of the eight winters, indicating that Pumicestone Passage is used year-round despite winter water temperatures dropping to below 18 degrees C from June to August inclusive and below 16 degrees C in June. All dugong sightings occurred in the southern part of the passage, south of Tripcony Bight. Dugongs were associated with shallows that support Halophila and Halodule species of seagrass, food species that are favoured elsewhere in their range. The northern part of the passage also supports seagrasses that are eaten by dugongs and has water temperature ranges that are not appreciably different to those of the southern passage. However, the narrow channels and very shallow nature of the northern passage provides little to no deep-water refugia for dugongs and the seagrass beds are less extensive. This study suggests that southern Pumicestone Passage requires protection concomitant with it being a year-round refuge of the vulnerable dugong.

Mechanisms of inducible resistance against Bacillus thuringiensis endotoxins in invertebrates

Abstract Resistance in insect pests against the endotoxin of Bacillus thuringiensis (Berliner) (Bt) is a major threat to the usefulness of this biopesticide, both used as traditional formulations and in transgenic crops. A crucial requirement for the development of successful resistance management strategies is a molecular understanding of the nature and inheritance of resistance mechanisms. This information can be used to design management strategies that will delay or counteract Bt resistance. The best known Bt resistance mechanism is inactivation of brush border membrane receptors. This type of resistance has a largely recessive mode of inheritance, which has enabled the design of resistance management approaches involving high dose and refuge strategies. Recent observations suggest that other resistance mechanisms are possible, including a mechanism that sequesters the toxin in the gut lumen through inducible immune reactions. The elevated immune status associated with tolerance to the toxin can be transmitted to subsequent generations by a maternal effect, which has implications for resistance management in the field. The high dose/refuge strategy may not be appropriate for the management of these alternative resistance mechanisms and other strategies have to be developed if inducible dominant resistance or tolerance mechanisms occur frequently in the field.

A community-based wildlife survey: the knowledge and attitudes of residents of suburban Brisbane, with a focus on bandicoots

Within the expanding city of Brisbane in south-east Queensland, numerous fragments of native and regrowth vegetation are scattered across the largely urbanised landscape. These fragments provide refuge to a great diversity of native wildlife, and, provide residents with the opportunity to experience nature on their doorstep. To assess the diversity and abundance of this wildlife, recent changes in these parameters, and the value of wildlife and bushland fragments to residents of Brisbane, a questionnaire survey was distributed to 300 households each located adjacent to one of 38 urban bushland fragments. A total of 172 surveys (57%) were returned, producing 768 records of 83 fauna species, dominated by birds and mammals; bandicoots were widely reported from the 38 fragments. Several historical records provided evidence of recent local extinctions within fragments, highlighting the continuing declines in various species of native wildlife within Brisbane. Several human-wildlife conflicts were identified, but overall residents were tolerant of such conflicts. Bandicoots were disliked by a small minority (3%) of residents owing to the holes they dig in lawns and gardens in search of food. and their potential as vectors of ticks. Most respondents expressed ail appreciation for the presence of native wildlife (96%) and bushland fragments (97%) in their local area, emphasising the importance of incorporating human dimension values into the management of this urban biodiversity.

IMAGENS DA GRANDE MÃE: MITOCRÍTICA DO SIMBOLISMO RELIGIOSO EM CECÍLIA MEIRELES

Esta tese estuda o sentido do simbolismo religioso da imagem do arquétipo da Grande Mãe ao interpretar a poesia de Cecília Meireles (1901-1964). As imagens da Grande Mãe estão presentes nos escritos de Cecília Meireles bem como o seu simbolismo religioso. Observou-se certa sintonia entre maternidade e simbolismo religioso na criação poética ceciliana. O objetivo prin-cipal desta tese foi de mostrar qual o sentido do arquétipo da Grande Mãe no simbolismo religi-oso ao interpretar a poesia de Cecília Meireles. A pesquisa foi bibliográfica focada no grupo de Eranos através do pensamento de Carl Gustav Jung (arquétipo), Paul Tillich (símbolo religioso), Gaston Bachelard (imagem literária), Gilbert Durand (mitocrítica), Mircea Eliade (símbolo). Cecília Meireles perdeu sua família prematuramente e foi morar com sua avó Jacinta Garcia Benevides, natural da Ilha de São Miguel (Açores, Portugal). Educada num ambiente de acon-chego e amor, ouvia constantemente as histórias contadas pela avó açoriana sobre a Ilha de São Miguel e a da Índia. Além disto, sua babá Pedrina, de forma mágica e divertida, introduziu-lhe no rico folclore brasileiro com suas crendices. Crescida neste ambiente de perdas e sofrimentos, mas amparada por estas duas mulheres, a poeta construiu no interior de seu ser um espaço mís-tico de encontro profundo com sua poesia. A Ilha do Nanja é este espaço místico onde a poeta entra quando quer se desligar das mazelas do mundo. Esta Ilha do Nanja é um refúgio, um rega-ço acolhedor materno onde seu ser encontra com o útero gerador de poesias. É o íntimo do mais íntimo do místico e lírico ceciliano. Cecília Meireles criou sua Ilha do Nanja que para ela é a Ilha de São Miguel transfigurada aos poucos pelo sonho. Além deste simbolismo, observou outros, tais como: a família (mãe, avó, babá no convívio em casa), santos/santas, Nossa Senhora, a terra. Com esta tese concluiu-se que o arquétipo da Grande mãe é um dos elementos centrais da poesia de Cecília Meireles por causa das perdas humanas, especialmente a figura materna. Mas há de ressaltar que a poeta não ficou apenas presa a esta perda para construir sua fortuna poética. Ela foi muito além conhecendo outros espaços geradores de sua poesia.