Search results for "assemblage"
showing 10 items of 143 documents
Larval fish assemblages in the central Mediterranean Sea: spatio-temporal dynamics and biological effects on early life stage of Sardinella aurita (P…
Italian marine reserve effectiveness: does enforcement matter?
2008
Marine protected areas (MPAs) have become popular tools worldwide for ecosystem conservation and fishery management. Fish assemblages can benefit from protection provided by MPAs, especially those that include fully no-take reserves. Fish response to protection can thus be used to evaluate the effectiveness of marine reserves. Most target fish are high-level predators and their overfishing may affect entire communities through trophic cascades. In the Mediterranean rocky sublittoral, marine reserves may allow fish predators of sea urchins to recover and thus whole communities to be restored from coralline barrens to macroalgae. Such direct and indirect reserve effects, however, are likely t…
First occurrence of fossil vertebrates from the Carboniferous of Colombia
2020
Data concerning Paleozoic vertebrates from the South American continent are still scarce. In Colombia, occurrences were until now restricted to the Late Devonian fish assemblage from Floresta and, ...
Early Miocene marsupialiforms, gymnures, and hedgehogs from Ribesalbes-Alcora Basin (Spain)
2020
AbstractMaterials from the localities of Araia d'Alcora in the Ribesalbes-Alcora Basin (Spain, early Miocene, Biozone C, MN4) have yielded an assemblage of erinaceids and metatherians, relatively rich for an Iberian site. The most common erinaceid is the gymnureGalerix symeonidisiDoukas, 1986, present in almost all of the studied sites. Other erinaceids in the faunal list are possibly an indeterminate species of the generaLantanotheriumFilhol, 1888 andAtelerixPomel, 1848, in what constitutes one of their oldest occurrences in Europe. Metatherians are represented by the herpetotheriidAmphiperatherium frequens erkertshofense(Koenigswald, 1970). The material described here was partially publis…
Interpreting the Schöningen 13II-4 butchery sequence using the Harris Matrix
2021
Abstract The Schoningen 13II-4 site is well known for the discovery of multiple wooden spears in association with a large assemblage of Middle Pleistocene fauna. Such extraordinary organic preservation also extends to a wide array of bone surface modifications that can be used to reconstruct Middle Pleistocene hominin butchery practices. On bones with few hominin-induced marks, the butchery sequence can be determined quite easily. However, the sequence becomes increasingly more difficult to decipher in bones that include a high number and diversity of biotic and abiotic modifications. To aid in this process, we developed a simple approach for determining the order of bone surface modificati…
After the emergence of the Acheulean at Melka Kunture (Upper Awash, Ethiopia): From Gombore IB (1.6 Ma) to Gombore Iγ (1.4 Ma), Gombore Iδ (1.3 Ma) a…
2021
International audience; While the emergence of the Acheulean is well documented in East Africa at ~1.7 Ma, subsequent developments are less well understood and to some extent controversial. Here, we provide robust evidence regarding the time period between 1.6 Ma and 1.2 Ma, based on an interdisciplinary approach to the stratigraphic sequences exposed in the Gombore gully of Melka Kunture, in the upper Awash Valley of Ethiopia. Throughout the Pleistocene, the environment differed significantly from elsewhere in Africa because of the elevation at 2000 m asl, the cooler and rainy climate, the Afromontane vegetation, the development of endemic animal species, and the recurrent impact of volcan…
Marine reserves: size and age do matter
2008
Marine reserves are widely used throughout the world to prevent overfishing and conserve biodiversity, but uncertainties remain about their optimal design. The effects of marine reserves are heterogeneous. Despite theoretical findings, empirical studies have previously found no effect of size on the effectiveness of marine reserves in protecting commercial fish stocks. Using 58 datasets from 19 European marine reserves, we show that reserve size and age do matter: Increasing the size of the no-take zone increases the density of commercial fishes within the reserve compared with outside; whereas the size of the buffer zone has the opposite effect. Moreover, positive effects of marine reserve…
Revealing Iberian woodcraft: conserved wooden artefacts from south-east Spain
2010
18 páginas, 6 figuras, 3 tablas.
Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? :…
2021
Abstract Background In boreal zone forest management is changing and degrading forest habitats, which has caused declines in biodiversity. To mitigate these harmful effects in production forests, small-scale habitats with high biodiversity values have been protected within them. These habitats include woodland key habitats, and other small habitat patches protected by voluntary conservation actions. In this systematic review we synthesize the evidence on the value of small protected habitat patches (SPHP) within production forest landscapes for biodiversity. Review question: Are small protected habitat patches within boreal production forests effective in conserving species richness, abunda…
The assemblage of culture-led policies in small towns and rural communities
2019
Abstract The mobile global discourse on culture’s prominent role in driving development policies is increasingly influencing small cities and rural communities. Global networks of information and ideas flow through space and become reconstructed as place-based and territorial narratives or policy assemblages; meanwhile, communities are increasingly producing local policies within these networks. The policy mobility literature has been occupied with perspectives on how to follow policies; it has only to a limited degree addressed empirical questions about how such policies are constructed from a situated perspective. Therefore, an analytical approach is needed to analyze the empirical constr…