Contribute Geolocation Data

Help us add geographic metadata to scientific works!

The works listed below have been harvested from various scientific sources but do not have geolocation data yet. If you know the geographic location or area mentioned in any of these works, you can help us improve our database.

Know a publication that should be in OPTIMAP? Enter its DOI and we will fetch its metadata from Crossref and enrich it automatically. If we already have it, you will be taken to its page.

Please log in to add works by DOI — use the user menu at the top right of the page.

Showing 57901 to 57950 of 59105 works

1 200 Jahre Großerdfall Arendsee (822–2022) – Historisches und Aktuelles zur Seegenese

[…] Der Beitrag stellt die geologische Entwicklung und Forschungsgeschichte des Arendsees in Sachsen-Anhalt dar, der als größter Erdfall Deutschlands gilt. Der See entstand im Jah…

A Synoptic Account of Flora of Solapur District, Maharashtra (India)

The present paper provides the first systematic and comprehensive account of the flora of Solapur district of Maharashtra (India). The flora of this region demonstrates a wide ran…

Biological Diversity, Ecological Health and Condition of Aquatic Assemblages at National Wildlife Refuges in Southern I…

The National Wildlife Refuge system is a vital resource for the protection and conservation of biodiversity and biological integrity in the United States. Surveys were conducted t…

[Neue Nr. 4339] Bitterfeld (West) / Geologische Karte

Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…

New synonym of Tipula (Vestiplex) wahlgrenana Alexander, 1968 (Diptera: Tipulidae)

Based on examination of type specimens a crane fly species Tipula (Vestiplex) hugueniniana Alexander, 1971 is proposed as junior synonym of Tipula (V.) wahlgrenana Alexander, 1968…

An occurence records database of French Guiana harvestmen (Arachnida, Opiliones)

This dataset provides information on specimens of harvestmen (Arthropoda, Arachnida, Opiliones) collected in French Guiana. Field collections have been initiated in 2012 within th…

Klimatische Änderungen, abgeleitet aus den granulometrischen Eigenschaften einer Lößbodenfolge in Zaprężyno (Wzgórza Tr…

[…] Korngrößenanalysen für paläoökologische Interpretationen verwenden einfache statistische Deskriptoren, um Rückschlüsse auf die stratigraphische und sedimentäre Bedeutung granu…

A semi-automated workflow for biodiversity data retrieval, cleaning, and quality control

The compilation and cleaning of data needed for analyses and prediction of species distributions is a time consuming process requiring a solid understanding of data formats and se…

Checklist of butterflies (Insecta: Lepidoptera) from Serra do Intendente State Park - Minas Gerais, Brazil

In order to contribute to the butterflies’ biodiversity knowledge at Serra do Intendente State Park - Minas Gerais, a study based on collections using Van Someren-Rydon traps and …

A chronological and palaeoenvironmental re‐evaluation of two loess‐palaeosol records in the northern Harz foreland, Ger…

The continuing development of analytical methods for investigating sedimentary records calls for iterative re‐examination of existing data sets obtained on loess‐palaeosol sequenc…

Fauna Europaea: Annelida – Hirudinea, incl. Acanthobdellea and Branchiobdellea

Fauna Europaea provides a public web-service with an index of scientific names (including important synonyms) of all living European land and freshwater animals, their geographica…

Model building and imaging with reflection data

The purpose of the first part of this dissertation was to develop a migration algorithm for converted waves, and a tomographic method for estimating an interval shear wave velocit…

Raumbilder im Diskurs

Institut für Geographische Wissenschaften, Freie Universität Berlin

Trends in access of plant biodiversity data revealed by Google Analytics

The amount of plant biodiversity data available via the web has exploded in the last decade, but making these data available requires a considerable investment of time and work, b…

World Checklist of Opiliones species (Arachnida). Part 1: Laniatores – Travunioidea and Triaenonychoidea

Comprising more than 6500 species, Opiliones is the third most diverse order of Arachnida, after the megadiverse Acari and Araneae. The database referred here is part 1 of 12 of a…

Die ersten 14C—datierten Mittelwürmbildungen von der südlichen Alentejoküste (Portugal)

In der Bucht von Sao Thorpes an der südlichen Alentejoküste/ Portugal wurden bei Geländearbeiten zur quartären Küstenentwicklung die von Breuil, Ribeiro und Zbyszewski (1943) erwä…

A database of life-history traits of European amphibians

In the current context of climate change and landscape fragmentation, efficient conservation strategies require the explicit consideration of life history traits. This is particul…

Brazilian Trichoptera Checklist II

A second assessment of Brazilian Trichoptera species records is presented here. A total of 625 species were recorded for Brazil. This represents an increase of 65.34% new species …

Das Flächennaturdenkmal Rahmannsmoor bei Krakow am See (Mecklenburg-Vorpommern) – Genese und Insektenwelt (Lepidoptera,…

In den Jahren 2017 bis 2019 wurde das Flächennaturdenkmal „Rahmannsmoor“ in Krakow am See bezüglich der Lepidopteren, Ephemeropteren und Trichopteren untersucht. Parallel dazu sin…

Fauna Europaea: Helminths (Animal Parasitic)

Fauna Europaea provides a public web-service with an index of scientific names (including important synonyms) of all living European land and freshwater animals, their geographica…

Fauna Europaea – all European animal species on the web

Fauna Europaea is Europe's main zoological taxonomic index, making the scientific names and distributions of all living, currently known, multicellular, European land and freshwat…

Hydraulic, sedimentological and ecological problems of multifunctional riparian forest management - RIPFOR -

PREFACE: The problem of prevention with regard to floodplains is related to two extremes: Prevention of floods and prevention of droughts, both urgent socioeconomic issues d…

First description of the male caste of the Himalayan endemic ant Lasius alienoflavus Bingham, 1903 (Hymenoptera: Formic…

The present paper provides a description of the male caste and re-description of the worker and queen castes of the poorly known ant species Lasius alienoflavus Bingham, 1903. Thi…

Nematodes from terrestrial and freshwater habitats in the Arctic

We present an updated list of terrestrial and freshwater nematodes from all regions of the Arctic, for which records of properly identified nematode species are available: Svalbar…

Quantification of Evaporation and Drainage Processes in Unsaturated Porous Media Using Magnetic Resonance Imaging

The water loss in packed beds was studied spatially and time‐resolved via magnetic resonance imaging on the pore scale. The packed beds were measured under water‐saturated and uns…

Usage patterns of blue flower color representation by Encyclopedia of Life content providers

Encyclopedia of Life (EOL) is a resource for community-driven biodiversity data, focusing on species information and images. Research into blue flowers to compare color ('blueness…

A dataset for examining trends in publication of new Australian insects

Australian Faunal Directory data were used to create a new, publicly available dataset, nai50, which lists 18318 species and subspecies names for Australian insects described in t…

E2 - Die glazialtektonische Internstruktur der Grundbruchmoräne Muskauer Faltenbogen

[…] Die Exkursion E2 mit dem Titel „Die glazialtektonische Internstruktur der Grundbruchmoräne Muskauer Faltenbogen“ konzentriert sich auf die geologischen Phänomene und Strukture…

Symbiota – A virtual platform for creating voucher-based biodiversity information communities

We review the Symbiota software platform for creating voucher-based biodiversity information portals and communities. Symbiota was originally conceived to promote small- to medium…

Submesoscale flows impact Agulhas leakage in ocean simulations

Agulhas leakage, the warm and salty inflow of Indian Ocean water into the Atlantic Ocean, is of importance for the climate-relevant Atlantic Meridional Overturning Circulation. So…

Enriched biodiversity data as a resource and service

Background: Recent years have seen a surge in projects that produce large volumes of structured, machine-readable biodiversity data. To make these data amenable to processing by g…

Diversity patterns of Middle Permian gastropod assemblages from the Tak Fa Formation, Central Thailand

Middle Permian marine invertebrate assemblages from Central Thailand are strongly dominated by gastropods. Two gastropod assemblages from the Tak Fa Limestone at Khao Noi and Khao…

The Encyclopedia of Life v2: Providing Global Access to Knowledge About Life on Earth

The Encyclopedia of Life (EOL, http://eol.org) aims to provide unprecedented global access to a broad range of information about life on Earth. It currently contains 3.5 million d…

Induced Magnetic Fields and Plasma Motions in the Inner Part of the Martian Magnetosphere

Analysis of Mars Atmosphere and Volatile Evolution (MAVEN)/Supra‐Thermal And Thermal Ion Composition observations in the Martian upper atmosphere, bounded at higher altitudes by t…

Why is the lawn buzzing?

Graminoids, including grasses, are frequently described in the botanical literature as being wind-pollinated. This paper offers visual evidence for insect pollination of a grass. …

J.G.C. Lehmann's 'Botanical Observations' of 1818 on Coldenia, Colsmannia, Cynoglossum, and Omphalodes (commented trans…

An annotated English translation of a German early 19th century text including Latin diagnoses is presented with a high-quality scan of the original publication and direct links t…

The Supertree Toolkit 2: a new and improved software package with a Graphical User Interface for supertree construction

Building large supertrees involves the collection, storage, and processing of thousands of individual phylogenies to create large phylogenies with thousands to tens of thousands o…

Geowissenschaftliche Mitteilungen - GMIT 103

Die Ausgabe der Geowissenschaftlichen Mitteilungen vom März 2026 enthält die Themenblöcke: GEOfokus: Frauen in den Geowissenschaften -Ein historischer Überblick-, GEOaktiv (Wirtsc…

Review of the genus Metopheltes Uchida, 1932 (Hymenoptera, Ichneumonidae) with description of a new species from Vietnam

A new species of the genus Metopheltes Uchida (Hymenoptera: Ichneumonidae, Ctenopelmatinae), M. clypeoarmatus sp. n. is described from Vietnam. M. petiolaris Uchida, 1932 is recor…

The Toba supervolcano eruption caused severe tropical stratospheric ozone depletion

Supervolcano eruptions have occurred throughout Earth’s history and have major environmental impacts. These impacts are mostly associated with the attenuation of visible sunlight …

Open source data logger for low-cost environmental monitoring

The increasing transformation of biodiversity into a data-intensive science has seen numerous independent systems linked and aggregated into the current landscape of biodiversity…

Studies in Hawaiian Diptera I: New Distributional Records for Endemic Asteia (Asteiidae)

New island records are reported for five species of Asteia endemic to the Hawaiian Islands (A. hawaiiensis, A. mauiensis, A. molokaiensis, A. palikuensis, A. sabroskyi). These new…

Morphological and Geographical Traits of the British Odonata

Trait data are fundamental for many aspects of ecological research, particularly for modeling species response to environmental change. We synthesised information from the literat…

The structural record of mid crustal stress and pore fluid pressure changes related to the earthquake cycle

Die Gefüge diskordanter Quarzgänge in der hochdruck/niedertemperaturmetamorphen Styra-Ochieinheit in süd Evia / Griechenland gewähren Einblick in kurzzeitige (auf dem geologischen…

How to help

If you recognize any works that reference specific geographic locations, please login, confirm your account, and contribute metadata.

In case you find any errors in other metadata fields, if you see a work with incorrect location or time information, or if you find works that should be included in our database, please contact us:

Contact Us Back to Map