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Showing 51851 to 51900 of 59105 works
Numerically stable form factor of any polygon and polyhedron
Coordinate‐free expressions for the form factors of arbitrary polygons and polyhedra are derived using the divergence theorem and Stokes's theorem. Apparent singularities, all rem…
Gradual change and mosaic pattern of macrofaunal assemblages along depth and sediment gradients in a tropical oceanic i…
The ecology of macrofauna on the sandy bottom of oceanic islands in the tropics has rarely been studied. The present study was conducted at Isla del Coco, Costa Rica, a tropical o…
Der Steppeniltis (Mustela [Putorius] eversmanni soergeli Éhik) in der Niederterrasse der Leine und seine klimageschicht…
Ein aus Kiesen und Sauden der Leine-Niederterrasse gebaggerter Schädel eines Steppeniltis (Mustela [Putorius] eversmanni soergeli Éhik) wird zum Anlaß genommen, die stratigraphisc…
A preliminary assessment of water quality in silvopastoral systems of Panama’s dry tropical forest
Dry tropical forests are unique, biodiverse ecosystems threatened by human development, especially deforestation for agricultural land use. Deforestation reduces carbon sequestrat…
Pollination of Guatemalan orchids – state of knowledge
This literature review aims to synthesise existing knowledge on research on pollination of orchid species in Guatemala. Orchids, known for their diverse and specialised interactio…
Developing a Laser Induced Liquid Beam Ion Desorption Spectral Database as Reference for Spaceborne Mass Spectrometers
Spaceborne impact ionization mass spectrometers, such as the Cosmic Dust Analyzer on board the past Cassini spacecraft or the SUrface Dust Analyzer being built for NASA's upcoming…
The poorly-known amblypygid fauna (Arachnida, Amblypygi) of Honduras, Central America: an overview
A significant study of the amblypygid fauna of Honduras is lacking. Historically, species were misidentified and data on distribution, natural history and conservation status of t…
Interaction intensity as determinant of geographic range overlap between ant-following birds and army ants
Biogeography has as a central theme, which is the study of geographic ranges of species that are determined by evolutionary history, abiotic factors, and biotic interactions. Unde…
Untersuchungen zur jüngeren Vegetations- und Siedlungsgeschichte in der Seemisse am Ruhestein (Nordschwarzwald)
Ein kurzer Profilabschnitt aus der Seemisse am Ruhestein im Nördlichen Schwarzwald wurde bezüglich der Pollen, Großreste und der chemischen Zusammensetzung in 1cm-Abständen unters…
Trophic ecology and niche overlap of two sympatric species of Rhamdia (Siluriformes, Heptapteridae) from northeast Oaxa…
The trophic ecology of fishes in the genus Rhamdia remains poorly reported. Here, we aim to describe the diet composition and infer the trophic levels, niche breadth, and niche ov…
The amphibians and reptiles of Cusuco National Park, Northwest Honduras: updates from a long-term conservation programme
Mesoamerican cloud forests support a rich and unique biodiversity but face severe threats from increasing habitat degradation and climate change. Here, we present an updated overv…
Dynamik des Stickstoffhaushaltes einer Sand-Braunerde nach vierjähriger Brache in Abhängigkeit von der landwirtschaftli…
Um für ertragsschwache, sandige Böden des mitteldeutschen Agrarraumes Aussagen bzw. Empfehlungen hinsichtlich einer ökologisch vertretbaren Wiederinbetriebnahme brachgefallener Fl…
Ocelot (Leopardus pardalis) breeding effort and productivity in seasonal tropical forests of the central Mexican Pacific
Camera trap studies on ocelots in Mexico have focused on abundance, habitat use, and activity patterns, mainly within Protected Areas of tropical humid forests in southern regions…
Portugiesische Manuskriptatlanten
In den Jahren 1938-1941 war es mir möglich, in Wien Studien über das spanisch-portugiesische Kolonialgebiet zu treiben, die durch Forschungen im Sudetenland ergänzt wurden. Bei di…
Habitat variety and behaviour of the Sanderling (Calidris alba) in an urban neotropical coastal wetland
Sanderling Calidris alba is a migratory coastal bird species whose populations are affected by climatic and anthropogenic issues. Additionally, its behavioural patterns depend on …
Göttinger Bodenkundliche Berichte 96
research
Corrigendum: Witt PBR, Faria HH, Oliveira J, Oliveira LR (2023) Management effectiveness of Nature Conservation Units …
A implantação de áreas protegidas, em especial, Unidades de Conservação da Natureza (UCs), é uma estratégia de conservação reconhecida mundialmente. No entanto, estes limites de u…
Managing invasive wild boars in Southern Brazil’s protected areas: Challenges and strategies
Invasive species pose significant threats to ecosystems and biodiversity, necessitating effective management strategies to mitigate their impacts. One such invasive species of con…
Management effectiveness of Nature Conservation Units in southern Brazil
The implementation of protected areas, in particular, nature Conservation Units (CUs), is a conservation strategy recognised worldwide. However, these territories require efficien…
Geowissenschaftliche Mitteilungen - GMIT 4
Die Ausgabe der Geowissenschaftlichen Mitteilungen vom Juni 2001 enthält die Themenblöcke: Berufsstand: Weltenergierat warnt vor Problemen in der Energieversorgung, Rohstoffe: 1. …
Regeneration in a Neotropical land planarian (Platyhelminthes, Tricladida)
Planarians are known for their ability to regenerate missing body parts. However, little is known about the regeneration ability of land planarians, especially regarding Neotropic…
Kurzmitteilung: Limonitische Umkrustungen von Geröllen meso-känozoischer Sedimentgesteine in saalekaltzeitlichen Vorsc…
[…] Der Beitrag beschreibt Entstehung, Aufbau und Zielsetzung der „Märkischen Eiszeitstraße“, einer touristischen, naturkundlichen und kulturhistorischen Themenroute im Nordosten …
Where do they live? Predictive geographic distribution of Tadarida brasiliensis brasiliensis (Chiroptera, Molossidae) …
Tadarida brasiliensis, the Brazilian free-tailed bat, is an insectivorous molossid with a wide distribution in the Americas. It occurs in different ecosystems and uses varied shel…
Productivity and impact of the Unisinos’ Postgraduate Program in Biology and the consequences of its interruption for …
On 22 July 2022, the Universidade do Vale do Rio dos Sinos (Unisinos), a private institution and community university in southern Brazil, announced the interruption of 12 of its p…
Beware of scientific scams! Hints to avoid predatory publishing in biological journals
Our motivation for writing this editorial is to alert the academic community about the risks of predatory publishing in Biology. By piggy-backing on the open access (OA) movement …
Ein neuer Eryopoide (Amphibia: Temnospondyli) aus dem saarpfälzischen Rotliegend (Unter-Perm; Südwest-Deutschland)
Palatinerpeton kraetschmeri n. gen. n. sp. aus dem unteren Rotliegend (äquivalent Asselium) des Saar-Nahe-Beckens wird an Hand des Holotypus beschrieben. Überliefert sind Partie…
Habitat use, non-breeding groupings and chromatic pattern in Johngarthia lagostoma (H. Milne Edwards, 1837) (Decapoda,…
The land crab Johngarthia lagostoma is endemic to Trindade Island, Atol das Rocas, Fernando de Noronha and Ascension Islands. The natural history of the species in non-breeding pe…
Biochemical, physiological, and molecular characterisation of a large collection of aerobic endospore-forming bacteria…
The aerobic endospore-forming bacteria (AEFB) comprise species of Bacillus and related genera and have long been regarded as prominent constituents of the soil bacterial community…
A review of environmental and anthropogenic variables used to model jaguar occurrence
Jaguars (Panthera onca) are a landscape species of conservation importance and our understanding of environmental and anthropogenic drivers of jaguar occurrence is necessary to im…
Mammals of the Tandilia Mountain system, current species inhabiting Pampean highland grasslands
Neotropical temperate grasslands comprise the Pampas ecoregion in Argentina. This region is also the center of agricultural development in Argentina, which has led to a significan…
Activity pattern and predatory behaviour of the ocelot (Leopardus pardalis) (Carnivora, Felidae) in mineral licks of t…
The ocelot, Leopardus pardalis, is one of the opportunistic predators of the tropical forests that includes birds, small and medium mammals, amphibians and reptiles in its diet. A…
Exoten in der Großsäuger-Fauna des letzten Interglazials von Mitteleuropa
Auf das Vorkommen von Hippopotamus amphibius, Bubalus murrensis, Cervus dama und einem kleinen Nashorn (Dicerorhinus cf. megarhinus) in der letztinterglazialen Fauna der nördliche…
Lessons from a tropical deciduous shrub species: leaf fall can play a more important role than rain in leaf budding
In the Cerrado, the sequential chaining of phenological events during the dry season is a pattern observed in many plant species. In this season, many plants completely lose their…
Toward Parametrization of Precipitating Shallow Cumulus Cloud Organization via Moisture Variance
The influence of the initial vertical moisture profile on precipitating shallow cumulus cloud organization in terms of the column‐averaged moisture variance is investigated using …
[Neue Nr. 2527] Bergedorf / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
Non-native freshwater fishes in Guatemala, northern Central America: introduction sources, distribution, history, and …
Non-native freshwater fishes have been introduced to Guatemalan freshwater ecosystems since the beginning of the last century without prior risk assessment or subsequent evaluatio…
Mikrobialith-Porifera Fazies eines Exogyren/Korallen Patchreefs des Oberen Korallenooliths im Steinbruch Langenberg bei…
Im oberen Korallenoolith (Oxford-Kimmeridge) von Oker entwickelten sich kleine lagunäre Riffe, deren Gerüst aus Exogyren, Serpeln und großen einzelnen Korallenstöcken gebildet wu…
Abundance of the Resplendent Quetzal Pharomachrus mocinno (Trogoniformes, Trogonidae) in the tourist sector of a cloud…
The Resplendent Quetzal (Pharomachrus mocinno) exhibits characteristics that are common to species prone to extinction, such as occurring at low densities, presenting strict ecolo…
The distribution and conservation status of Tapirus terrestris in the South American Atlantic Forest
Tapirus terrestris is the largest South American land mammal, with an extensive historical distribution and capable of occupying diverse habitats, and yet its populations have dec…
Focused methane migration formed pipe structures in permeable sandstones: Insights from uncrewed aerial vehicle‐based d…
Focused fluid flow shapes the evolution of marine sedimentary basins by transferring fluids and pressure across geological formations. Vertical fluid conduits may form where local…
Growth and Decay of Northwestern Tropical Atlantic Barrier Layers
The growth and decay mechanisms of barrier layers in the northwestern tropical Atlantic are studied by investigating small‐scale processes embedded in the regional circulation of …
Increasing reality of species distribution models of consumers by including its food resources
Species distribution models are not usually calibrated with biotic predictors. Our study question is: does the use of biotic predictors matter in predicting species distribution? …
Medium and large-sized mammals in Private Natural Heritage Reserves in the Quadrilátero Ferrífero of Minas Gerais, Braz…
Habitat fragmentation has been shown to be constantly growing and increasingly affecting the conservation of species that require large areas for their populations to subsist, as …
Success in conserving the bird diversity in tropical forests through private protected areas in Western Ecuador
Private protected areas have recently attained more importance at a worldwide level as regards nature conservation. Particularly, the specific region of Western Ecuador receives h…
Zur alpinen Schneegrenze und Waldgrenze während des Würmglazials
Es wird mit Hilfe der „Temperaturkurve" von Woldstedt eine Kurve der Schneegrenze und der Waldgrenze in den Alpen während der Würm-Eiszeit rekonstruiert. Damit soll Art, Zeitstell…
Ecology and morphology of the dwarf bromeliad boa Ungaliophis panamensis (Squamata, Boidae, Ungaliophiinae) in Costa Ri…
Ecological and morphological data on Ungaliophis panamensis is extremely limited as this species is rarely encountered. These knowledge gaps have been advanced in this study where…
Entstehung und Flora des Trasses im nördlichen Laachersee-Gebiet
Die Lagerungsverhältnisse des Trasses sowie der Erhaltungszustand und die Lage der in ihm eingeschlossenen pflanzlichen Fossilien lassen auf eine komplexe Entstehung des Trasses s…
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