Results 31 to 40 of about 23,818 (266)

Ground ice as indicator of the Pleistocene history of the Russian Arctic

open access: yesЛëд и снег, 2015
Based on the analysis of massive ground ice origin, the geological development of the Russian Arctic in the Quaternary period has been considered. A classification of massive ice with two new genetic types (submarine and coastal-marine) and new mechanism
N. A. Shpolyanskaya
doaj   +1 more source

The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley   +1 more source

Historical birth records from 1896 to 1944 from the Basel maternity hospital, Switzerland, reveal significant obstetric selection pressures

open access: yesThe Anatomical Record, EarlyView.
Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert   +7 more
wiley   +1 more source

POLA OKUPASI GUA KIDANG, JELAJAH RUANG DAN WAKTU: SUATU HIPOTESIS

open access: yesBerkala Arkeologi, 2012
Kidang cave in the karst region Todanan, Blora, Central Java is a cave complex which consists of two caves. Archaeological findings show intensively inhabited this cave for a long time.
Indah Asikin Nurani, Agus Tri Hascaryo
doaj   +1 more source

Morphological homology, evolution, and proposed nomenclature for bear dentition [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Bears are a group of carnivores with diverse diets and complicated dental structure. Several large rearrangements of dental structures are known in different lineages of bears, making the homology of dental structures between the different bears ...
Qigao Jiangzuo, Jinyi Liu, Jin Chen
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Changing nature of Pleistocene interglacials - is it recorded by paleosoils in Hungary (Central Europe)?

open access: yesHungarian Geographical Bulletin, 2015
Based on stable isotope analyses of worldwide reference curves, it has long been apparent that duration, intensity and climatic conditions of Pleistocene interglacial periods were significantly diverse.
György Varga
doaj   +1 more source

Gradual Change in Human Tooth Size in the Late Pleistocene and Post- Pleistocene [PDF]

open access: yesEvolution, 1987
Starting with the onset of the last glaciation approximately 100,000 years ago and continuing to the end of the Late Pleistocene approximately 10,000 years ago, human tooth size began to reduce at a rate of 1% every 2,000 years. Both the mesial-distal and the buccal-lingual dimensions of mandibular and maxillary teeth were undergoing the same rate of ...
Brace, C. Loring   +2 more
openaire   +3 more sources

Extrapolation strategy matters when transferring ecological niche models: new visualization tools for informed decisions

open access: yesEcography, EarlyView.
Abstract Ecological niche models (ENMs) are commonly used to predict species' potential distributions across space and time, allowing researchers and practitioners to assess invasion risk, estimate the impacts of future climate change, and reconstruct past distributions.
Gonzalo E. Pinilla‐Buitrago   +2 more
wiley   +1 more source

Ecological patterns of planktonic and benthic foraminifera in surface sediments of the Tatar Strait (Japanese Sea)

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
The fauna of planktonic and benthic foraminifera of the Tatar Strait in the surface layer of sediments from cores sampled during the cruise LV85 on the R/V «Akademik Lavrentiev» in May 2019 has been studied.
S.P. Pletnev, V.K. Annin, A.V. Romanova
doaj   +1 more source

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