ANTROPOGEOMORFOLOGIA DA MICROBACIA DO RIO TERRA NOVA, AMAZÔNIA, BRASIL

O planejamento de ações para a boa gestão dos recursos naturais é essencial para o desenvolvimento sustentável na região amazônica, e informações associadas às características da paisagem são a base para tal. Nessa perspectiva, o trabalho tem como objetivo compreender as características geométricas, topográficas, hidrográficas e as alterações na cobertura da paisagem provocadas pela ação humana na microbacia do rio Terra Nova. As informações foram obtidas de equações e sensoriamento remoto, utilizando softwares (QGIS 2.10.1, TrackMaker e Google Earth) e imagens de satélite. A microbacia tem área de 27,32 km2 de área, perímetro de 28,5 km, forma alongada, baixa suscetibilidade a enchentes, altitudes de 210 a 446 m, predominância de relevo suave ondulado (48,76%), 89,28% da área apta a extremamente apta a mecanização agrícola e com baixa influência na propagação de incêndios, rede de drenagem com padrão dendrítico, 5ª ordem de drenagem, médias densidade de nascentes e de drenagem, coeficiente de manutenção de 561,9 m2 m-1, canal principal divagante e baixo tempo de concentração. A área de floresta nativa na microbacia e em sua zona ripária foi reduzida constantemente de 1984 a 2021, restando apenas 26,13% e 50,95%, respectivamente, desta cobertura no último ano analisado. Na microbacia do rio Terra Nova comprovou-se a necessidade de considerar o componente arbóreo como parte do sistema produtivo nas propriedades rurais, portanto, recomenda-se o monitoramento da cobertura florestal e recuperação das áreas degradadas e áreas protegidas por lei, para mitigar os impactos ambientais.

Captain Scott rewrote his story: January–June 1911

This article reveals that Captain Robert Falcon Scott rewrote his Terra Nova journals for the period 24 January to 18 June 1911, making extensive changes, in places. He made carbon copies of his journal from then until 31 October 1911. The Royal Geographical Society (with IBG) holds the combined manuscript as Carbon copy of diary as leader of British Antarctic Expedition, Jan. to Oct. 1911 with reference number RFS/1. This little-known version of Scott’s journals has apparently been overlooked by many researchers and scholars. The main research question addressed by the article is: “What was the significance of Captain Scott rewriting his story?” The article reviews two versions of Scott’s story – the published narrative Scott’s Last Expedition, and RFS/1. It investigates the provenance of each version and then reviews differences between the two texts. Three key differences stand out, suggesting the underlying pressures that drove Scott to rewrite his story in mid-1911. The article touches upon editorial changes made by Leonard Huxley in compiling Scott’s Last Expedition and contrasts those changes with changes made by Scott when rewriting the same passages. It also investigates the provenance of a typescript version of RFS/1 held by Canterbury Museum.

Blizzard City: Built Environment and Civilization in Antarctica, 1911-1961

<p>This thesis investigates four Antarctic built environments between 1911 and 1961: Robert Falcon Scott’s 1910-1912 Terra Nova expedition base at Cape Evans, Ross Island; Sir Douglas Mawson’s 1911-1914 Australasian Antarctic Expedition base at Commonwealth Bay; Australia’s Mawson Station in MacRobertson Land, founded in 1954; and New Zealand’s Scott Base, also on Ross Island, founded in 1957. Examining unpublished and published diaries of expeditioners, government files and newspaper reports, this thesis demonstrates that, to the expeditioners who built and occupied them, these places created protective bastions of civilization in an extreme environment. It investigates what residents and architects (figurative and literal) thought and felt about these blizzard cities, their meaning and significance. In doing so, this study reinforces, extends, and at times challenges broader conceptions of built environment, nature, civilization, Antarctica, and their thicket of interrelationships. The first two chapters – one focused on the Heroic Era and the second on the post-WWII bases – argue that Antarctic built environments were embattled, modern sanctuaries. The extreme environment of Antarctica also demonstrated to expeditioners that built environment had plasticity, which challenged the expeditioners’ expectation of built environment being stable, durable, and impermeable. Chapter three argues that Antarctic built environment allowed expeditioners to create civilization in the wilderness, in a variety of ways. Through examining facets of occupation such as etiquette and international cooperation, the chapter argues that civilization took many forms, not all of them positive from the expeditioners’ point-of-view.</p>

Blizzard City: Built Environment and Civilization in Antarctica, 1911-1961

<p>This thesis investigates four Antarctic built environments between 1911 and 1961: Robert Falcon Scott’s 1910-1912 Terra Nova expedition base at Cape Evans, Ross Island; Sir Douglas Mawson’s 1911-1914 Australasian Antarctic Expedition base at Commonwealth Bay; Australia’s Mawson Station in MacRobertson Land, founded in 1954; and New Zealand’s Scott Base, also on Ross Island, founded in 1957. Examining unpublished and published diaries of expeditioners, government files and newspaper reports, this thesis demonstrates that, to the expeditioners who built and occupied them, these places created protective bastions of civilization in an extreme environment. It investigates what residents and architects (figurative and literal) thought and felt about these blizzard cities, their meaning and significance. In doing so, this study reinforces, extends, and at times challenges broader conceptions of built environment, nature, civilization, Antarctica, and their thicket of interrelationships. The first two chapters – one focused on the Heroic Era and the second on the post-WWII bases – argue that Antarctic built environments were embattled, modern sanctuaries. The extreme environment of Antarctica also demonstrated to expeditioners that built environment had plasticity, which challenged the expeditioners’ expectation of built environment being stable, durable, and impermeable. Chapter three argues that Antarctic built environment allowed expeditioners to create civilization in the wilderness, in a variety of ways. Through examining facets of occupation such as etiquette and international cooperation, the chapter argues that civilization took many forms, not all of them positive from the expeditioners’ point-of-view.</p>

Regional Differences in the Diets of Adélie and Emperor Penguins in the Ross Sea, Antarctica

To identify the dietary composition and characteristics of both Adélie (Pygoscelis adeliae) and Emperor (Aptenodytes forsteri) penguins at four breeding sites, we performed stable carbon (δ13C) and nitrogen (δ15N) isotope analysis of down samples taken from penguin chicks. Adélie Penguin chicks at Cape Hallett mostly fed on Antarctic krill (Euphausia superba; 65.5 ± 3.5%), a reflection of the prevalence of that species near Cape Hallett, and no significant differences were noted between 2017 and 2018. However, Adélie Penguin chicks at Inexpressible Island, located near Terra Nova Bay, fed on both Antarctic silverfish (Pleuragramma antarctica; 42.5%) and ice krill (Euphausia crystallorophias; 47%), reflecting the high biomass observed in Terra Nova Bay. Meanwhile, no significant difference was noted between the two breeding sites of the Emperor Penguin. Emperor Penguin chicks predominantly fed on Antarctic silverfish (74.5 ± 2.1%) at both breeding sites (Cape Washington and Coulman Island), suggesting that diet preference represents the main factor influencing Emperor Penguin foraging. In contrast, the diet of the Adélie Penguin reflects presumed regional differences in prey prevalence, as inferred from available survey data.

Ocupações Irregulares em Áreas de Preservação Permanente de Córregos Urbanos no Município de Terra Nova do Norte-Mato Grosso

A presente pesquisa analisou as ocupações irregulares em Áreas de Preservação Permanente (APP) de dois córregos urbanos no município de Terra Nova do Norte-MT, destacando a inobservância da legislação ambiental, especialmente o Código Florestal Brasileiro, pelos moradores e poder público. O método de abordagem adotado foi o materialismo histórico e dialético e como procedimento metodológico seguiu-se a pesquisa bibliográfica e a documental que subsidiaram a produção da fundamentação teórica e o levantamento da legislação direcionada ao tema, bem como à análise empreendida. A pesquisa a campo foi realizada para a aquisição de imagens das APP’s com Remotely Piloted Aircraft/Aeronave Remotamente Pilotada (RPA- phantom 4) com resolução espacial de 15 cm, possibilitando a obtenção de imagens mais detalhadas da área de estudo e para o registro da paisagem por meio de câmera fotográfica digital. Como resultado obteve-se que as APPs dos córregos analisados apresentam supressão vegetal, fomentada principalmente pelas ocupações irregulares, oriundas dos processos de segregação imposta e autossegregação, também que o curso d’água está sendo contaminado pelo despejo de esgoto, comprometendo de forma significativa o equilíbrio ambiental da área estudada.