Results 91 to 100 of about 105,582 (310)

Sex‐Specific Control and Incomplete Matings: Sperm Removal Behavior in a Bush Cricket Species

open access: yesEthology, EarlyView.
In this study, we investigated which sex influences the duration of sperm removal behaviour (SRB) in the ornate bush cricket, Metaplastes ornatus. Female traits showed a weak effect on SRB duration, and lighter females mated more frequently. Frequent unsuccessful mating terminations shortened SRB indicating high level of sexual conflict.
Chiara Flaskamp   +2 more
wiley   +1 more source

Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants

open access: yesThe FEBS Journal, EarlyView.
Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Elena Aledo   +3 more
wiley   +1 more source

Towards red listing understudied tropical insects: A case study of the dung beetles of Sabah, Malaysian Borneo

open access: yesInsect Conservation and Diversity, EarlyView.
We performed an IUCN Red List assessment for 159 dung beetle species from Sabah, Malaysian Borneo. Due to the lack of population demographic data, only Criterion B (i.e. geographic range) could be applied. Our findings show that the IUCN Red List Criteria can be applied to insect species based solely on occurrence data but highlight the importance of ...
Xin Rui Ong   +5 more
wiley   +1 more source

Characteristics and genesis of fillings in fracture-cavity space in first member of Permian Maokou Formation, Sichuan Basin: a case study of well A1

open access: yesShiyou shiyan dizhi
In recent years, natural gas discoveries have been continuously made in the first member of the Permian Maokou Formation in the Sichuan Basin, bringing attention to the genesis mechanism of marlstone reservoir space. Centimeter-scale fracture-cavity type
Xianwu MENG   +5 more
doaj   +1 more source

Carboniferous and Permian magmatism in Scotland [PDF]

open access: yes, 2004
Extensional tectonics to the north of the Variscan Front during the Early Carboniferous generated fault-controlled basins across the British Isles, with accompanying basaltic magmatism.
Fitton, J.G.   +4 more
core   +1 more source

Morphology and osteo‐histology of the weigeltisaurid wing: Implications for aerial locomotion in the world's first gliding reptiles

open access: yesJournal of Anatomy, EarlyView.
This study investigates the morphology and osteo‐histology of the wing skeleton of the world's first gliding reptiles, showing how it differs from those of extant gliding lizards, yet is also convergently similar. These findings pave the way for future biomechanical studies on the gliding locomotion of these emblematic fossil animals. Abstract The Late
Valentin Buffa   +7 more
wiley   +1 more source

Reshetnikovka formation of south-western Primorye — fragment of the late paleozoic passive continental margin deposits

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
The results of mineralogical and geochemical studies of terrigenous rocks of the Early-Middle Permian Reshetnikovka formation in the southwestern part of Primorsky Krai are considered.
A.I. Malinovsky
doaj   +1 more source

Reassessing 1492 [PDF]

open access: yes, 1989
American ...
Crosby, Alfred W.
core   +1 more source

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

open access: yesJournal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos   +3 more
wiley   +1 more source

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