Averting biodiversity collapse in tropical forest protected areas

The rapid disruption of tropical forests probably imperils global biodiversity more than any other contemporary phenomenon(1-3). With deforestation advancing quickly, protected areas are increasingly becoming final refuges for threatened species and natural ecosystem processes. However, many protected areas in the tropics are themselves vulnerable to human encroachment and other environmental stresses(4-9). As pressures mount, it is vital to know whether existing reserves can sustain their biodiversity. A critical constraint in addressing this question has been that data describing a broad array of biodiversity groups have been unavailable for a sufficiently large and representative sample of reserves. Here we present a uniquely comprehensive data set on changes over the past 20 to 30 years in 31 functional groups of species and 21 potential drivers of environmental change, for 60 protected areas stratified across the world's major tropical regions. Our analysis reveals great variation in reserve `health': about half of all reserves have been effective or performed passably, but the rest are experiencing an erosion of biodiversity that is often alarmingly widespread taxonomically and functionally. Habitat disruption, hunting and forest-product exploitation were the strongest predictors of declining reserve health. Crucially, environmental changes immediately outside reserves seemed nearly as important as those inside in determining their ecological fate, with changes inside reserves strongly mirroring those occurring around them. These findings suggest that tropical protected areas are often intimately linked ecologically to their surrounding habitats, and that a failure to stem broad-scale loss and degradation of such habitats could sharply increase the likelihood of serious biodiversity declines.

El radicalismo bonaerense, de la Unión Cívica a la reorganización partidaria (1890-1892)

Resumen: Un tema que ha sido poco tratado, muy probablemente opacado por la importancia y celeridad del proceso relacionado con el nacimiento de la Unión Cívica Radical, es el de la rápida expansión del movimiento cívico y todo lo relativo a la organización, tanto a nivel provincial y nacional de los comités partidarios. El presente trabajo tiene entonces la intención de estudiar, dentro de la escasa información existente al respecto, cómo se produjo dicha organización y la posterior reorganización de los diversos centros políticos luego de la ruptura, en junio de 1891, de la Unión Cívica.

Journal of a voyage to Brazil and residence there, during part of the years 1821, 1822, 1823

Maria Graham, escritora inglesa, nasceu perto de Papscastle em 19 d e junho de 1785 e morreu em Londres, em 28 de novembro de 1842. Casada com o capitão Thomas Graham comandante da fragata Doris fez em sua companhia a sua primeira viagem ao Brasil, em 1821, quando se dirigia ao Chile. Em 1824, já viúva, retornou ao Rio de Janeiro como preceptora de D. Maria da Glória, filha do Imperador D. Pedro I e de Dona Leopoldina. Permaneceu no país até setembro de 1825, quando retornou para Londres por motivos políticos. Mais tarde, casou-se com Augustus Earle Calcott e passou a assinar suas obras literárias como Lady Calcott. ‘Journal of a voyage to Brazil’ relata as viagens da autora ao Brasil. Descreve o país, seus habitantes e os costumes das diferentes classes sociais, principalmente em Pernambuco, na Bahia e no Rio de Janeiro. Constitui importante fonte de informações sobre a época da independência e uma das melhores publicações do século XIX. As ilustrações, com desenhos da autora, são excelentes. De acordo com Borba de Moraes ‘a Catholic University Library em Washington (Oliveira Lima Collection) possui um exemplar que pertenceu à própria autora, onde ela fez correções e anotações para uma segunda edição, mas que nunca chegou a ser publicada. Essas anotações são muito importantes, sobretudo para a história da revolução de Pernambuco e a atuação de Cochrane. Quanto aos acontecimentos de sua vinda ao Rio de Janeiro como preceptora de Dona Maria da Glória, existe um diário que foi publicado por Rodolfo Garcia com preciosas notas e prefácio no volume 60 dos Anais da Biblioteca Nacional do Rio de Janeiro, assim como uma biografia de D. Pedro I e correspondência entre Maria Graham e a Imperatriz’

Gehiago Pierre Urteren gramatikaren iturriez: Lilyren gramatika

[EN] Pierre Urte wrote Grammaire cantabrique circa 1714, when he was exiled in England. In this article we want to prove that the main source for Urte’s work was the socalled “Lily’s grammar”, which was the oficial grammar to learn Latin language in England from the 16th to the 19th century. The indentification of that source allows us to support the claim that Urte’s grammar must be included in the tradition of language teaching, as was already pointed out by Oyharçabal (1989). In this article, we first offer a brief history of Lily’s grammar. Then, we provide some clues in order to identify the exact edition used by Urte. Finally, in the main section of the article, we confront the two grammatical works; our aim is to ensure Urte’s debt to Lily’s grammar, and to show in detail the principal parts which Urte took from his source (mainly grammatical clasifications and examples).

Um estadista do Imperio : Nabuco de Araujo : sua vida, suas opiniões, sua época por seu filho Joaquim Nabuco

v. 1. 1813-1857 -- v. 2. 1857-1866 -- v. 3. 1866-1878

Collecção das Leis do Imperio do Brazil de 1822

Parte 1 - Leis das Cortes Gerais Extraordinárias e Constituintes da Nação Portuguesa

Collecção das Leis da República dos Estados Unidos do Brazil de 1892

Parte 1 - - Atos do Poder Legislativo

Synopsis of biological data on the Nassau grouper, Epinephelus striatus (Bloch, 1792), and the jewfish, E. itajara (Lichenstein, 1822)

Information on the biology, fishery resources, explotiation patterns, management, and conservation status of two species of grouper-the Nassau grouper, Epinephelus striatus, and the jewfish, Epinephelus itajara-is compiled, reviewed, and analyzed. (PDF file contains 68 pages.)

Carta que dirigio a Sua Magestade o Senhor D. João VI em data de 22 de setembro de 1822 o Principe Real

A última carta que D. Pedro dirigiu a seu pai traz um trecho que justifica o cuidado das Cortes em não divulgar esses documentos, além do necessário para informar os deputados. Diz ele: "hei por bem declarar tods os decretos preteridos dessas facciosas,orrorosas, machiavélicas,desorganizadoras, ediondas e pestiferas Cortes, nullos, irritos e enexequiveis". Adiante, diz: "Triunfa e triunfará a Independência Brasílica ou a morte nos hade custar".

Cartas e documentos dirigidos a Sua Magestade o Senhor D. João VI pelo Principe Real o Senhor D. Pedro de Alcântara : e que forão presentes às Cortes em a Sessão de 28 de septembro de 1822

A carta na qual Dom Pedro comunica a Independência do Brasil é datada de 26 de setembro de 1822 e contém a ata da sua aclamação como Imperador Constitucional e Defensor Perpétuo do Brasil.

Preliminary study on the natural extenders for artificial breeding of African catfish Clarias gariepinus (Burchell, 1822)

The objective of the present study was to determine the most suitable extender and their respective dilution ratios for African catfish sperm for artificial induced breeding and cryopreservation purposes. Three natural extenders were tested i.e. coconut water, sugarcane water and soybean solutions, at three different levels of sperm to extender dilutions of 1:20, 1:30 and 1:40. While Ringer solution was used as a control Diluted sperm were fertilized with ready isolated eggs to assess the fertility and hatching rate at 0, 6 and 12 hour intervals. The results showed that the eggs hatched approximately 19 to 27 hours after fertilization. In general, the fertilization and hatching rates decreased with increasing dilution ratio. With respect to natural extenders, the coconut water showed the highest fertility and hatching rates at 1:20 dilution ratio. Therefore, coconut water at 1:20 dilution ratio was the optimal condition for African catfish spermatozoa among the natural extenders investigated.

Successful handstripping of hatchery bred and reared male African catfish, Clarias gariepinus (Burchell, 1822)

A total of 45 Male and 5 female Clarias gariepinus bred and reared in the hatchery in sunning for one year were obtained for this experiment. The fish were then housed separately according to their sexes and maintained on trout diet at 10% body weight for two days before they were subjected to induction. These were then induced using both human chorionic gonadotropin (hCG - 500iu) and carp pituitary suspension (CPS -3mg kg super(-1) suspended in 0.9% saline) either as priming or resolving doses. The milt produced was used to fertilize eggs tripped from females. The results indicated high milt production, motility and fertility in most males

The analysis of dieldrin residues in the brain, liver and muscles of the African catfish Clarias gariepinus (Burchell 1822) chronically exposed to dieldrin

Mature adult Clarias gariepinus were obtained at the ABRU hatchery in Sonning (UK), where they had beenbred and reared for several years. These were exposed to two concentrations of dieldrin in water (2.4 mu g super(-1) and 4.0 mu g super(-1). The residue analysis of diedrin in three tissues exposed for on moth at two concentrations was carried out. These were subjected to GLC analytical process. The results indicated significantly (P<0.05) higher residues in liver than in muscle and brain. The results also showed that residue levels were dependant on exposure concentration

Length-weight relationship and organ indices of pond raised and wild population of C. gariepinus (Burchell 1822) pisces-Claridae

Samples of C. gariepinus collected from the wild and cultured populations in Plateau and Niger States of Nigeria were analyzed for length-weight relationship and organ indices (Gonadosomatic index (GSI), hepatosomatic index (HSI), renalsomatic index (RSI) and somatic fat deposit index (PDI). High correlation and linear relationship between body length and body weight was observed in all sample population (P<0.05). A significant difference was observed between the GSI of males and females of both wild and cultured population and also between females of the wild and cultured population,(P < 0.05).There was no significant difference in HSI, CSI RSI and PDI of all the sample populations (P < 0.05).The importance of length-weight relationship and organ indices in fish production are discussed