The northernmost South American fossil record of Boa constrictor (Boidae,Boinae) from the Plio–Pleistocene of El Breal de Orocual (Venezuela)

Onary-Alves, S.Y., Hsiou, A.S. & Rincón, A.D., July 2016. The northernmost South American fossil record of Boa constrictor (Boidae, Boinae) from the Plio–Pleistocene of El Breal de Orocual (Venezuela). Alcheringa 41, xxx–xxx. ISSN 0311-5518.

Boa constrictor is an extant boid widely distributed through the neotropical region, from the north of Central America to central Argentina. The fossil record of the species includes examples from several localities across the Americas that extend beyond the current distribution of the species. Here we report the first Plio–Pleistocene fossils of Boa from Monagas state, Venezuela. The material comes from El Breal de Orocual (Maturín municipality), which is an inactive tar seep deposit emplaced within the Mesa Formation. The specimens consist of two isolated anterior trunk vertebrae, an articulated sequence of six mid-trunk vertebrae and two posterior trunk vertebrae. The vertebrae are attributed to B. constrictor based on the following features: robust and high vertebrae; thick zygosphene with a notched or concave anterior edge; presence of a paracotylar, subcentral and lateral foramina; marked parasagittal ridges; epizygapophyseal process evident on the dorsal surface of the postzygapophyseal articular facets and high blade-like neural spine. The presence of B. constrictor in northern of Venezuela indicates a palaeoenvironment probably like savanna crossed by rivers with riparian forests, and suggests the predominance of a mesothermal climate with a moderate rainfall.

Silvio Y. Onary-Alves [silvioyuji@gmail.com], Programa de Pós-graduação em Biologia Comparada, Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo (USP), Av. Bandeirantes 3900, CEP 14040901, Ribeirão Preto, São Paulo, Brazil; Annie S. Hsiou [anniehsiou@ffclrp.usp.br], Laboratório de Paleontologia, Faculdade de Filosofia, Ciências e Letras, Departamento de Biologia, Universidade de São Paulo (USP), Av. Bandeirantes 3900, CEP 14040901, Ribeirão Preto, São Paulo, Brazil; Ascanio D. Rincón [paleosur1974@gmail.com], Laboratorio de Paleontología, Centro de Ecología, Instituto Venezolano de Investigaciones Científicas (IVIC), Carretera Panamericana Km 11, 1020-A Caracas, Venezuela.     

Seasonality only works in certain parts of the year: the reconstruction of fishing seasons through otolith analysis

Seasonality estimations using incremental data usually suffer from small sample sizes and from the lack of comparison with sufficiently large modern samples. The present contribution reports on incremental studies carried out on large assemblages of plaice (Pleuronectes platessa) and haddock (Melanogrammus aeglefinus) from a late medieval fishing village (Raversijde, Belgium) on the North Sea coast. In an attempt to refine previous seasonality estimates made for this site, and to expand conclusions concerning general methodology, extensive monthly samples of modern otoliths of these species, caught within the North Sea, have also been investigated. The modern material shows that the timing of the seasonal changes in the edge type (hyaline or opaque) of the otoliths is extremely variable and that it is dependent on the fishing ground, the year considered, and the age of the fish. It also appears that the increase of the marginal increment thickness is highly variable, to such an extent that the thickness of the last increment of a single otolith is mostly useless for seasonality estimation. Where large archaeological otolith assemblages can be studied, preferably from single depositional events, seasonality determination becomes possible on the condition, however, that the archaeological assemblage corresponds to fish that were captured during their period of fast growth. The growth ring study on the otoliths from Raversijde shows that plaice fishing took place in spring and that it was preceded by a haddock fishing season, probably in late winter/early spring. Copyright © 2004 John Wiley & Sons, Ltd.     

Dispossession 1990s style: Aborigines,islanders and the policy making process of the Goss labor government

Aboriginal and Islander people in Queensland remain unempowered in the policy making process of government. This is achieved by downgrading and under‐resourcing the relevant portfolio, by co‐locating it with welfare, by giving other departments statutory rights in decision making on indigenous issues which are not reciprocal, by relocating key indigenous policy areas into otherwise antagonistic departments, by ghettoising the issues in Cabinet and by failing to elucidate clear policy guidelines on indigenous issues. The Goss government has also ensured that indigenous people remain unempowered outside of government by failing to legislate for regional land councils, Aboriginal majority on national parks boards of management and an Aboriginal‐controlled statutory acquisitions fund and by retaining excessive discretionary power in the administration of the 1991 Land Acts.     

Exploring normative whiteness: ensuring inclusive pedagogic practice in undergraduate fieldwork teaching and learning

Higher education commentators have become concerned about how learning and teaching praxis across the sector may unwittingly advantage White British (WB) compared to Black and Minority Ethnic (BME) students. Adopting critical race theory, this article explores these issues in relation to field teaching in geography and related subjects. It reports on primary data collected from students about to attend their first residential field trip. The research shows that WB and BME students approach their first field trip with diverse geographical experiences. The findings indicate a need to reflect critically on our fieldwork routines in order to promote inclusivity in field learning.     

别致小镇的滑雪假期

恣意的滑行,和新花园式的艺术生活,都是瓦勒迪泽尔的特性。这里是法国最负盛名的滑雪地之一,也是广受欢迎的度假胜地,具有专业的氛围和丰厚的文化底蕴。