Suche
Anzeige der Dokumente 331-340 von 380
Nutrient and Silicon Isotope Dynamics in the Laptev Sea and Implications for Nutrient Availability in the Transpolar Drift
(
- Global Biogeochemical Cycles
, 2022-09-23)
Realistic prediction of the near‐future response of Arctic Ocean primary productivity to ongoing warming and sea ice loss requires a mechanistic understanding of the processes controlling nutrient bioavailability. To ...
Multispecies assemblages and multiple stressors: Synthesizing the state of experimental research in freshwaters
(
- Wiley Interdisciplinary Reviews: Water
, 2023-02-27)
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">Recent decades have witnessed a sharp biodiversity decline in freshwaters due to multiple ...
Testing the success of palaeontological methods in the delimitation of clam shrimp (Crustacea, Branchiopoda) on extant species
(
- Palaeontology
, 2023-01-16)
Fossil spinicaudatan taxonomy heavily relies on carapace features (size, shape, ornamentation) and palaeontologists have greatly refined methods to study and describe carapace variability. Whether carapace features alone ...
Fossilized soft tissues in Palaeozoic bryozoans
(
- Papers in Palaeontology
, 2023-02-23)
Thin sections of three Palaeozoic bryozoans reveal fossilized soft tissues that show the position of organic cuticle and internal structures such as the membranous sac and gut. The fossilization occurred apparently due to ...
Late Devonian (Famennian) to Carboniferous (Mississippian-Pennsylvanian) conodonts from the Anarak section, Central Iran
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-01-09)
A relatively complete conodont record from Famennian to the Mississippian/Pennsylvanian boundary was investigated in the Anarak section, Central Iran. The studied interval belongs to the Bahram, Shishtu, Ghaleh and Absheni ...
Benthic Foraminifera of the Agulhas Bank coastal shelf in the vicinity of Plettenberg Bay, South Africa: a reconnaissance survey
(
- Geo-Marine Letters
, 2021-04-16)
The study area is located on the inner Agulhas Bank around Plettenberg Bay, southern Cape Province, South Africa (Fig. 1). The Agulhas Bank is a transitional environment between the cold-temperate Benguela Current regime ...
A carbonate corrosion experiment at a marine methane seep: The role of aerobic methanotrophic bacteria
(
- Geobiology
, 2023-02-12)
Methane seeps are typified by the formation of authigenic carbonates, many of which exhibit corrosion surfaces and secondary porosity believed to be caused by microbial carbonate dissolution. Aerobic methane oxidation and ...
NPP-ID: Non-Pollen Palynomorph Image Database as a research and educational platform
(
- Vegetation History and Archaeobotany
, 2021-08-30)
Non-pollen palynomorphs (NPPs) form a large group of biological objects found in palynological slides besides pollen grains. This includes various remains of algae and fungi, shells, resting stages and eggs of invertebrates, ...
ArchbotLit—the archaeobotanical literature database: an update of the search engine for literature on archaeological remains of cultivated plants since 1981
(
- Vegetation History and Archaeobotany
, 2020-09-13)
The online Archaeobotanical Literature Database (ArchbotLit) is an important tool for getting targeted access to archaeobotanical publications. It offers the opportunity for archaeobotanists, archaeologists, freelancers, ...
Diversity patterns of Middle Permian gastropod assemblages from the Tak Fa Formation, Central Thailand
(
- Palaeobiodiversity and Palaeoenvironments
, 2021-05-07)
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 Chao Thong of the Nakhon Sawan area are ...