Results 71 to 80 of about 5,269 (236)

Holocene vegetation dynamics of Grande Terre (Kerguelen Islands) inferred from sedimentary ancient DNA

Journal of Quaternary Science, EarlyView.
ABSTRACT While the Antarctic region has experienced significant climatic changes over the Holocene, few high‐resolution records have examined their effects on the local biota. In order to understand past ecological shifts and forecast future changes, it is important to obtain high‐resolution palaeoecological records from this region.
Xaali O'Reilly‐Berkeley, Aloïs Revéret, Youri Lammers, Maaike Zwier, Anne E. Bjune, Fabien Arnaud, Jostein Bakke, Sandra Nogué, Inger G. Alsos   +8 more
wiley   +1 more source

Reply to ‘Dissimilarity measures affected by richness differences yield biased delimitations of biogeographic realms’

Nature Communications, 2018
Recently, we classified the oceans into 30 biogeographic realms based on species’ endemicity. Castro-Insua et al. criticize the choices of dissimilarity coefficients and clustering approaches used in our paper, and reanalyse the data using alternative ...
Mark J. Costello, Peter Tsai, Alan Kwok Lun Cheung, Zeenatul Basher, Chhaya Chaudhary   +4 more
doaj   +1 more source

Intercomparison of carbon‐13 and carbon‐14 tracer approaches for estimating marine calcification and net primary production

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate measurements of phytoplankton net primary production (NPP) and calcification are essential for quantifying marine carbon cycling, yet in situ calcification rates remain poorly constrained. We compared 13C‐ and 14C‐based tracer methods for NPP in laboratory cultures of the diatom Chaetoceros tenuissimus and the coccolithophore ...
Chloe L. Smith, Austin Grubb, Kay D. Bidle, Kimberlee Thamatrakoln, Adam V. Subhas   +4 more
wiley   +1 more source

Biogeographic and evolutionary patterns of change in the terrestrial biota across the Cretaceous\Tertiary boundary [PDF]

The Paleontological Society Special Publications, 1992
The currently available fossil record suggests, 1) biogeographic differentiation of the Late Cretaceous terrestrial biota and, 2) distinctly different patterns of evolution of terrestrial faunas and floras across the Cretaceous\Tertiary boundary.Discovery in Alaska of dinosaurs and mammals that lived at Late Cretaceous northern high latitudes provides ...
openaire   +1 more source

Artificial Intelligence‐Driven Natural Product Drug Discovery: From Computational Genome Mining to Clinical Translation

Medicinal Research Reviews, EarlyView.
ABSTRACT Natural products (NPs) have historically yielded numerous therapeutic agents, yet their integration into modern drug discovery has been constrained by chemical complexity, low abundance, laborious dereplication, and limited target annotation.
Antonio Lavecchia
wiley   +1 more source

Macro‐ and micromorphological insights into Iranian Onobrychis subgenus Onobrychis Miller (Fabaceae): exploring fruit traits for taxonomic clarity

Nordic Journal of Botany, EarlyView.
This study provides a comprehensive examination of fruit morphology and micromorphology characteristics of 28 populations of Onobrychis subgenus Onobrychis taxa from Iran, using both light and scanning electron microscopy. For each trait, 25 replicates were analyzed, encompassing a wide range of qualitative and quantitative traits.
Seyed Mehdi Talebi, Narjes Azizi, Raheleh Tabaripour   +2 more
wiley   +1 more source

Near‐T2T genome assembly of Erigeron sumatrensis provides insights into polyploid evolution and the herbicidal efficiency of HPPD inhibitors

New Plant Protection, EarlyView.
The near‐T2T genome assembly of Erigeron sumatrensis reveals an allohexaploid origin, evolution, and the interaction between the herbicidal target of the HPPD family and mesotrione. Abstract Species of Erigeron, members of the family Asteraceae, have invaded and adapted to agricultural fields and uncultivated habitats worldwide. Erigeron sumatrensis is
Yingying Wang, Jian Zhao, Jiao Zhang, Yaliang Shi, Xin Zhang, Feng Luo, Lianyang Bai, Meiliang Zhou, Zuren Li   +8 more
wiley   +1 more source

Mechanisms of peripheral phylogeographic divergence in the indo-Pacific: lessons from the spiny lobster Panulirus homarus

BMC Evolutionary Biology, 2017
Background There is increasing recognition of the concordance between marine biogeographic and phylogeographic boundaries. However, it is still unclear how population-level divergence translates into species-level divergence, and what are the principal ...
Ahmad Farhadi, Andrew G. Jeffs, Hamid Farahmand, Thankappan Sarasam Rejiniemon, Greg Smith, Shane D. Lavery   +5 more
doaj   +1 more source

Coverage‐based rarefaction fails to quantify relative species richness

Oikos, EarlyView.
Coverage‐based rarefaction (CBR) is a high‐profile tool for assessing biodiversity that provides relative species richness estimates by leveraging the Good‐Turing index u to interpolate. In contrast to alternatives such as the Shannon and Simpson indices, CBR's main appeal is providing values in units of species. CBR is tested against a series of other
John Alroy
wiley   +1 more source

DNA barcoding of passerine birds in Iran [PDF]

ZooKeys
Exploring genetic diversity is essential for precise species delimitation, especially within taxonomically complex groups like passerine birds.
Sahar Javaheri Tehrani, Elham Rezazadeh, Niloofar Alaei Kakhki, Leila Nourani, Vali Ebadi, Sahar Karimi, Mojtaba Karami, Fatemeh Ashouri, Asaad Sarshar, Toni I. Gossmann, Mansour Aliabadian   +10 more
doaj   +3 more sources