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Showing 51901 to 51950 of 59105 works
Structure of aquatic macroinvertebrate communities in streams of a sub-basin in the Pampa Biome, Southern Brazil
The Piratinim River is located in the northwest of Rio Grande do Sul, and represents an important effluent from the Uruguay River, with streams located far from urbanized areas, i…
Biological invasions in brazilian environmental science courses: do we need new approaches?
The increasing destruction of natural environments worldwide favored more and more alien species’ dispersal, distancing people from nature and consequently from native species. We…
Species richness, geographical affinities and activity patterns of mammals in premontane Andean forests of the Magdalen…
More than half of the population of Colombia is settled in the Magdalena River basin, resulting in high deforestation rates due to productive activities and urbanisation. Within t…
Bergordnung für die Bergwerke außerhalb der Pflege Freibergs 1466
Bergordnung für die Bergwerke außerhalb der Pflege Freibergs von Kurfürst Ernst und Herzog Albrecht von Sachsen vom 14. April 1466. In sechs Artikeln wurden in dieser Bergordnung …
Invasive alien plants in Sergipe, north-eastern Brazil
Biological invasions are considered one of the greatest threats to global biodiversity. In addition, they cause substantial economic impacts. However, studies about the subject in…
Current knowledge on biology, fishing and conservation of the blue shark (Prionace glauca)
The blue shark (Prionace glauca) is a large predator in marine ecosystems, figuring as the most common and abundant species in oceanic fisheries. For this reason, many studies on …
Influence of environmental and morphological parameters on the microfauna community present in phytotelmata of a bromel…
Bromeliads are important epiphytes due to their abundance in the Neotropical region and morphological complexity. Their compact and imbricated leaf bases form water storage cister…
Berechnung des seismischen Streufeldes für anisotrope Störungen
Vorliegende Arbeit beschäftigt sich mit der Streuung der seismischen Wellen infolge unterschiedlicher, unter Anderen anisotroper, Störungen der sphärischen Symmetrie des Modells. …
Status of knowledge of the broad-nosed weevils of Colombia (Coleoptera, Curculionidae, Entiminae)
Broad-nosed weevils in the subfamily Entiminae (Coleoptera: Curculionidae) are highly diverse, not only in terms of number of species, but also in their sizes, forms and colours. …
Bedeutung von Toneigenschaften für die Wahl der Tonbeimengung in gärtnerischen Torfsubstraten
Abstract: The purpose of adding clay to horticultural growing media is to achieve objectives such as a well-balanced nutrient supply, buffering of the pH-value, improvement of…
Nesting habitat and density, nest characteristics, home ranges and group sizes of the Rufous-fronted Thornbird (Phacell…
Rufous-fronted Thornbird (Phacellodomus rufifrons) reproduction has been studied under a few environmental conditions but might show some variations among regions throughout its w…
An alternative method for determining the body condition index of the free-living South American coati
Assessing and monitoring the welfare of free-living mammals is not a usual process due to the logistical complications associated with their capture and sedation, collection and s…
GIS-based analysis of a geotechnical-geological 3D model of periglacial Quaternary rocks in the southern Leine valley…
Geometric 3D models are a very efficient tool to visualize geological units and structural features that have been presented before just in two dimensions on maps or cross-section…
Invasive plants in the Brazilian Caatinga: a scientometric analysis with prospects for conservation
Understanding the impacts caused by invasive plant species, especially in regions where studies are scarce, is of great importance to the development of management and conservatio…
Assessing Volcanic Controls on Miocene Climate Change
The Miocene period saw substantially warmer Earth surface temperatures than today, particularly during a period of global warming called the Mid Miocene Climatic Optimum (MMCO; ∼1…
Main trends and gaps in studies for bird conservation in the Pantanal wetland
Birds are considered one of the most well-known groups of animals in the Pantanal, playing an important ecological role in wetland ecosystems. Our aim was to identify the main the…
Modelling of sediment supply from torrent catchments in the Western Alps using the sediment contributing area (SCA) app…
The production of coarse sediment in mountain landscapes depends mainly on the type and activity of geomorphic processes and topographic and natural conditions (e.g. vegetation co…
Azara’s No. 21 “Gavilán pardo obscuro” is not a Short-tailed Hawk Buteo brachyurus
Almost half of the 400+ species described in Félix de Azara’s “Apuntamientos para la historia natural de los páxaros del Paraguay y Rio de la Plata” were new to science at the tim…
Assimilating visible satellite images for convective-scale numerical weather prediction: A case-study
Satellite images in the visible spectral range contain high-resolution cloud information, but have not been assimilated directly before. This paper presents a case-study on the as…
The bigger the better? Vigour of the exotic host plant Calotropis procera (Apocynaceae) affects herbivory
The Plant Vigour Hypothesis states that herbivores preferentially feed on the most vigorous plants within a plant population and/or the most vigorous modules within a plant. The g…
Biology and fishery of Acoupa Weakfish Cynoscion acoupa (Lacepède, 1801): a review
The present study describes the fishery and biology of Acoupa Weakfish Cynoscion acoupa, an important fishery resource in South America. We found and analyzed 31 articles and 10 p…
[Neue Nr. 2528] Hamwarde [Geesthacht] / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
An update of the invasive Pterygoplichthys Gill, 1858 (Actinopterygii, Loricariidae) in Guatemala: new records and note…
Fishes have been introduced in non-native ecosystems all over the world. These introductions have been recognised for their overall negative effects on native biodiversity. Plecos…
Current status of dung beetles (Coleoptera, Scarabaeidae, Scarabaeinae) diversity and conservation in Natural Protected…
Natural Protected Areas (NPAs) are consider adequate tools for biodiversity conservation. Currently in Mexico there are 182 federal NPAs classified according to their management o…
[Neue Nr. 5038] Langenberg / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
Distribution modeling applied to deficient data species assessment: A case study with Pithecopus nordestinus (Anura, Ph…
The arboreal frog Pithecopus nordestinus is geographically present in almost all Brazilian Northeast territory and Minas Gerais State. It is currently classified as deficient data…
Zeitschrift für Geophysik 32 / 5 & 6
INHALTSVERZEICHNIS: HOFMANN, H. und H. STILLER: Die Bestimmung der CURIEtemperaturen von natürlichen Magnetiten mit der Methode der thermodynamischen Koeffizienten . . . 267 ; …
New defensive behaviour of the false coral snake Oxyrhopus rhombifer Duméril, Bibron & Duméril, 1854 (Serpentes, Dipsad…
Anti-predator mechanisms are essential for species survival and the description of defensive behaviour may improve our understanding about the ecology, biology and evolution of sp…
Métricas de paisagem na avaliação da efetividade de proteção do Parque Estadual da Costa do Sol, uma unidade de conserv…
A região de Cabo Frio e seu entorno, no litoral do Estado do Rio de Janeiro, Brasil, apresenta alta riqueza de espécies vegetais e um grande número de endemismos, o que a torna um…
Characterization of the genetic diversity of a population of Odocoileus virginianus veraecrucis in captivity using micr…
The genetic diversity and effective population size (Ne) of a population of Odocoileus virginianus veraecrucis in captivity were characterized in the Wildlife Management Unit “El …
Noah‐MP With the Generic Crop Growth Model Gecros in the WRF Model: Effects of Dynamic Crop Growth on Land‐Atmosphere I…
In this paper we coupled a crop growth model to the Weather Research and Forecasting model with its land surface model Noah‐MP and demonstrated the influence of the weather driven…
Trends and biases in scientific literature about marmosets, genus Callithrix (Primates, Callitrichidae): biodiversity a…
Marmosets of the genus Callithrix are small-bodied platyrrhines, endemic to Brazil. In the last 30 years, there has been a constant interest in studying their biology, ecology and…
Características reprodutivas de peixes invasores no rio Paranapanema, bacia do alto rio Paraná, sul do Brasil
Estudos sobre biologia reprodutiva podem fornecer explicações sobre o sucesso na colonização de novas áreas, dado que características biológicas associadas às espécies invasoras p…
The predominant role of soil in determining species composition of fern communities in subtropical coastal forest ecosy…
Ferns are an important component in the understorey of tropical forests and their distribution is influenced by several biotic and abiotic factors. At a regional scale, soil chara…
Applying a floristic originality index in tropical forests of south Sinaloa, Mexico
Sinaloa is among the states of Mexico harboring the highest deforestation rates. Reforestation programs have been put up in south Sinaloa with species chosen for their high seedli…
Das Alter des Quarzkeratophyrs der Krausaue bei Rüdesheim am Rhein (Bl. 6013 Bingen, Rheinisches Schiefergebirge)
…] Der Quarzkeratophyr der Krausaue bei Rüdesheim wurde mittels U/Pb-Datierung an Zirkonen untersucht, um seine bislang ungeklärte Altersstellung zu bestimmen. Das ermittelte Alte…
Of people and toads: Local knowledge about amphibians around a protected area in the Brazilian Atlantic Forest
This study aimed to identify ethnozoological knowledge about amphibians of people living around a protected area, the Wildlife Refuge of Una (REVIS), located in the Atlantic Fores…
Molecular genetic studies of Chilean avifauna: an overview about current progress
The biodiversity of Chilean avifauna has been shaped by geological events, geographical factors and extreme climatic regimens. Molecular genetic studies developed to date have beg…
Surface velocity fields of active rock glaciers and ice‐debris complexes in the Central Andes of Argentina
Rock glaciers and transitional ice‐debris complexes predominate the Central Andean landform assemblage, yet regional studies on their state of activity and their kinematics remain…
The biggest or the most abundant? Predation of the Black Drum Pogonias cromis (Perciformes, Sciaenidae) on benthic orga…
Predators that consume larger prey acquire a greater net return of energy per individual, even though they are less abundant. The objective of this work is to analyze the feeding …
Alternatives for the biomonitoring of fish and phytoplankton in tropical streams
Biomonitoring programs need to balance accurate responses in assessments of changes in biological communities with sampling that is fast and low cost. In this study, we evaluated …
Veröffentlichungen aus dem deutschen Sprachraum zum Thema „Moor und Torf“ aus dem Jahre 2013 und 2014 mit Nachträgen fü…
Die vorliegende Zusammenstellung der Veröffentlichungen auf dem Gebiet „Moor und Torf“ umfasst 104 Titel.
Environmental factors affecting the success of exotic plant invasion in a wildland-urban ecotone in temperate South Ame…
Urbanization is one of the main causes driving changes in biodiversity patterns and it is regarded as a major threat to native biota. Successful exotic plant invasion depends on i…
Instrumentelle Möglichkeiten des Staates zur Steuerung der Raumentwicklung -
Aus dem Prozess der bisherigen Raumentwicklung in Deutschland sind im Wesentlichen zwei Arten von Problemgebieten hervorgegangen: einerseits solche urbanen Räume, die durch negati…
Assessing the role of habitat and species interactions in the population decline and detection bias of Neotropical leaf…
Worldwide, amphibian populations have been declining rapidly. This decline can be attributed to many factors including climate change, pesticide exposure, and emerging infectious …
Highly disparate bird assemblages in sugarcane and pastures: implications for bird conservation in agricultural landsca…
Sugarcane and cattle pastures are two of the most widespread and economically important agricultural landscapes. However, in Brazil, they have not been properly investigated for t…
Reproductive biology of the mutton hamlet on the coast of Pernambuco, northeastern Brazil
This paper focuses on the reproductive biology of the Mutton Hamlet, Alphestes afer, a fish belonging to the family Epinephelidae, and aims to provide information on the main repr…
Der Saiga-Fund von Pahren. Ein Beitrag zur Kenntnis der paläarktischen Verbreitungsgeschichte der Gattung Saiga GRAY 18…
Ausgehend von einer knappen Darstellung zur Geschichte der Erforschung fossiler Saiga-Reste auf dem Gebiet der DDR wird das bisher vorliegende Fundgut aufgeführt und durch die Bes…
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