Results 131 to 140 of about 1,250,539 (300)

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

An expert-curated dataset of glass sponges (Porifera, Hexactinellida) distribution across the Atlantic and Arctic OceansZenodo

Data in Brief
Glass sponges (Porifera, Hexactinellida) are key habitat-forming organisms in deep-sea ecosystems, yet their diversity and distribution remains poorly understood.
Celso Domingos, Ana Sofia Soares, Andreu Santín, Joana R. Xavier   +3 more
doaj   +1 more source

Phylogenomic analysis of ultraconserved elements clarifies relationships and morphological evolution in Cryptoplacoidea (Mollusca: Polyplacophora)

Cladistics, EarlyView.
Abstract Targeted enrichment of ultraconserved elements (UCEs) is a powerful tool for resolving phylogeny in groups with limited morphological or molecular data. Here, we use UCEs to reconstruct the first comprehensive phylogeny of the chiton superfamily Cryptoplacoidea, including museum material up to 133 years old.
Katarzyna Vončina, Zeyuan Chen, Enrico Schwabe, Anna K. Hundsdoerfer, Julia D. Sigwart   +4 more
wiley   +1 more source

Growth and Survival of Early Juveniles of the Marine Sponge Hymeniacidon perlevis (Demospongiae) Under Controlled Conditions

, 2009
To resolve "the supply problem" in sponge-derived drug development and other biotechnological applications, current research is exploring the possibility of obtaining an alternative sustainable supply of sponge biomass through intensive aquaculture of ...
张卫, Zhang, Wei, Xue, Lingyun
core   +1 more source

Recent Advances in the Synthesis of the Marine-Derived Alkaloid Fascaplysin and Its Metabolites Homofascaplysins A–C

Molecules
The fascaplysin and homofascaplysin class of marine natural products has a characteristic 12H-pyrido[1,2-a:3,4-b′]diindole pentacyclic structure. Fascaplysin was isolated in 1988 from the marine sponge Fascaplysinopsis bergquist sp.
Ramana Reddy Mittapalli, Harshita Kumari
doaj   +1 more source

Advancing conservation breeding programs for marine invertebrates

Conservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam, Bart Shepherd, Kylie Lev, Rebecca Albright   +3 more
wiley   +1 more source

Deoxyuridines from the Marine Sponge Associated Actinomycete Streptomyces microflavus

, 2011
One new nucleoside derivative, named 3-acetyl-5-methyl-2′-deoxyuridine (1), along with two known compounds 3,5-dimethyl-2′-deoxyuridine (2) and 3-methyl-2′-deoxyuridine (3), were isolated from the cultures of Streptomyces microflavus.
Nai-Yun Ji, Wei Zhang, Liu, Bo, Ji, Nai-Yun, Xu-Peng Cao, Li, Qiao-Lian, Zhang, Wei, Li, Ke, Qiao-Lian Li, Cao, Xu-Peng, Ke Li, Bo Liu   +11 more
core   +1 more source

Marine rewilding principles as a guiding framework for large‐scale ecosystem restoration

Conservation Science and Practice, EarlyView.
As marine ecosystems face accelerating degradation from human pressures, interest is growing in approaches that move beyond protection toward active recovery of ecological processes. This article introduces marine rewilding as a forward‐looking framework and synthesizes ecological and social science to develop eight transdisciplinary principles that ...
Gavin Stark, Guillermo Germán Joosten, Ariane Cornerier, Rachel Schwarz   +3 more
wiley   +1 more source

Giants in the cold: Morphological evidence for vascular heat retention in the viscera but not the skeletal muscle of the basking shark (Cetorhinus maximus)

Journal of Fish Biology, EarlyView.
Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker, Axel Schlindwein, Martin C. Arostegui, Ingrid M. Bruvold, Joel V. Wernström, Montserrat Martin‐Armas, David W. Sims, Nicolas Straube, Andreas Altenburger, Claudia Junge   +9 more
wiley   +1 more source