Results 41 to 50 of about 16,136 (202)

Multiple indicators record human adaptations to climatic change during the Middle Holocene at the Wanbei site in the middle and lower Huai River valley, China

Boreas, Volume 55, Issue 1, Page 150-163, January 2026.
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian, Wuhong Luo, Huiyuan Gan, Liugen Lin, Tianci Sun, Yajie Sun, Hanlin Xu, Caiwei Zhang, Xin Wang, Juzhong Zhang   +9 more
wiley   +1 more source

Drastic peatland regime shift and landscape disturbances connected to warm and cold climate events over the past centuries in subarctic Finland

Boreas, Volume 55, Issue 1, Page 85-97, January 2026.
Palaeoecological studies reporting long‐term development histories of subarctic fens—explicitly, orohemiarctic peatlands—are scarce, and overall, permafrost‐free peatlands located in the immediate vicinity of permafrost zones have received little attention in Fennoscandia. Here, we use a multiproxy approach to study the millennial‐scale dynamics of two
Sanna R. Piilo, Mari Kuoppamaa, Teemu Tahvanainen, Timo Kumpula, Niina Kuosmanen, Marc  Macias‐Fauria, Minna Väliranta   +6 more
wiley   +1 more source

High-resolution coproecology: Using coprolites to reconstruct the habits and habitats of New Zealand’s extinct upland Moa (Megalapteryx didinus) [PDF]

, 2005
Knowledge about the diet and ecology of extinct herbivores has important implications for understanding the evolution of plant defence structures, establishing the influences of herbivory on past plant community structure and composition, and identifying
Wood, Jamie R., Wilmshurst, Janet M., Wagstaff, Steven J., Worthy, Trevor H., Rawlence, Nicolas J., Cooper, Alan   +5 more
core   +4 more sources

Lannotinidines H-J, New Lycopodium Alkaloids from Lycopodium annotinum

Chemical and Pharmaceutical Bulletin, 2009
Three new Lycopodium alkaloids, lannotinidines H-J (1-3), were isolated from the club moss Lycopodium annotinum. The structures and relative stereochemistry of 1-3 were elucidated on the basis of spectroscopic data and the absolute stereochemistry of 2 was assigned by chemical correlation. Lannotinidine H (1) is the first Lycopodium alkaloid possessing
Kan'ichiro, Ishiuchi, Shihomi, Kodama, Takaaki, Kubota, Shigeki, Hayashi, Toshiro, Shibata, Jun'ichi, Kobayashi   +5 more
openaire   +3 more sources

Holocene Land‐Use and Climate Forcing of Ombrotrophic Peatland Dynamics in Northwest Estonia

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 12, December 2025.
Abstract We present a high‐resolution, multi‐proxy record from Mustjärve bog, northwest Estonia, covering the past ∼2,500 years. By integrating paleoecological, historical, and climate data, we evaluate how climate and land use shaped peatland hydrology, vegetation, and carbon dynamics.
Harry Roberts, Luke Andrews, Michał Słowiński, Katarzyna Marcisz, Piotr Kołaczek, Leeli Amon, Siim Veski, Normunds Stivrins, Atko Heinsalu, Mariusz Lamentowicz   +9 more
wiley   +1 more source

MP 2012-01 [PDF]

, 2012
In 1994 the University of Alaska Fairbanks, School of Natural Resources and Agricultural Sciences, Agricultural and Forestry Experiment Station began a project to establish permanent sample plots (PSP) throughout the forests of northern and ...
Liang, JingJing, Malone, Thomas, Packee, Edmond C.   +2 more
core  

Palynological, tephra, and 14C records from southern Kaitoke, Great Barrier (Aotea) Island, New Zealand, since c. 30,000 cal. yr BP

New Zealand Journal of Botany, Volume 63, Issue 5, Page 1096-1114, December 2025.
ABSTRACT Here we present results of the last remaining three, unreported pollen and stratigraphic profiles from our previous investigations on Great Barrier Island from southern Kaitoke. The 14C and pollen data extend the island's previous maximum pollen‐vegetation date from c. 7000 cal. yr BP to close to the end of MIS 3 c. 30,000 cal. yr BP.
Mark Horrocks, John Ogden, Yanbin Deng, Scott L. Nichol, Simon H. Bickler   +4 more
wiley   +1 more source

Three new Lycopodium alkaloids from Lycopodium japonicum

Journal of Asian Natural Products Research, 2018
Three new Lycopodium alkaloids (1–3), together with 15 known alkaloids, were isolated from club moss Lycopodium japonicum. Their structures were determined by extensive spectroscopic analysis, including 1D and 2D NMR spectra. Compound 1 has an unusual β-oriented methyl group substituted at C-15 and an α-hydroxy cyclopentenone moiety.
Yu, Zhu, Liao-Bin, Dong, Zhi-Jun, Zhang, Min, Fan, Qin-Feng, Zhu, Yan-Yan, Qi, Yu-Chen, Liu, Li-Yan, Peng, Xing-De, Wu, Qin-Shi, Zhao   +9 more
openaire   +2 more sources

Micro Gondwana: soil and litter mesofauna in the subalpine and alpine of North‐West Nelson, southern New Zealand

New Zealand Journal of Zoology, Volume 52, Issue 5, Page 944-966, December 2025.
ABSTRACT Alpine ecosystems are vulnerable to the warming climate, yet alpine soil mesofauna remains the less studied part of NZ biodiversity. Here we present a survey of soil mesofauna communities of three mountain peaks in the Nelson‐Tasman and Marlborough regions of the South Island of New Zealand.
Maria A. Minor, Alastair W. Robertson
wiley   +1 more source

Palynomorphs of brackish and marine species in cores from the freshwater Lake Sapanca, NW Turkey [PDF]

, 2010
Lake Sapanca, which is located on the Sakarya–Sapanca–İzmit corridor in NW Turkey, is a freshwater lake with numerous fish farms in its catchment. Palynological analyses including non-pollen palynomorphs of a short (38.5 cm) and a longer sediment core ...
Aksu, Akçaalan, Albay, Albay, Anderson, Atkinson, Aykulu, Balık, Balon, Baykal, Bobat, Boettger, Gürbüz, Innal, İslamoğlu, Kouli, Kristiansen, Leroy, Leroy, Leroy, Leroy, Marret, Marret, Marret, McAndrews, Meriç Albay, Mertens, Morkoç, Mudie, Mudie, Mudie, Pfannenstiel, Polat, Rathje, Ryan, Ryan, Santamaría, Schwab, Schütt, Sorrel, Suzanne A.G. Leroy, Tanik, Traverse, Uğurlu, Vasiliev, Wall, Çelikkale, Özuluğ, Şahin, Şaşı   +49 more
core   +1 more source