Now showing items 131-140 of 3692
PERSISTENCE OF EGG RECOGNITION IN THE ABSENCE OF CUCKOO BROOD PARASITISM: PATTERN AND MECHANISM
(Blackwell Publishing Ltd, 2006-01)
Broad ecological shifts can render previously adaptive traits nonfunctional. It is an open question as to how and how quickly nonfunctional traits decay once the selective pressures that favored them are removed. The village ...
Climatic oscillations during the Precambrian era
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1987-07)
A remarkably regular cyclicity with a fundamental period of ~11–12 cycles is preserved in the 680 million year old Elatina formation of South Australia. All but one of the many periods present can be interpreted as resulting ...
Discovery of the Northeast Passage: the voyage of the VEGA, 1878–1879
(Kluwer Academic Publishers; Akademische Verlagsgesellschaft ; Springer Science+Business Media, 1979-07)
The gravity reference response, the rotation sensation, and other illusory sensations experienced in aircraft and space flight
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1973-09)
An analysis of the gravitational and inertial forces which act during aircraft flight upon the vestibular systems of the aircraft occupants reveals that in the absence of a visual horizon, certain illusory sensations are ...
Lipid composition of fat body and its contribution to the maturing oocytes in Pyrrhocoris apterus
(Elsevier, 1969-06)
The fat body of adult, female Pyrrhocoris apterus undergoes cyclic growth and diminution correlated with cycles of oocyte maturation. At all stages lipid accounts for 80 per cent of the dry weight of the fat body and the ...
Comparative Patterns Of Growth And Development In Cricetine Rodents And The Evolution Of Ontogeny
(ElsevierWiley Periodicals, Inc., 1986-01)
Vegetation connectivity increases ant activity and potential for antâ provided biocontrol services in a tropical agroforest
(John Wiley & Sons, 2019-01)
In natural and managed systems, connections between trees are important structural resources for arboreal ant communities with ecosystemâ level effects. However, ongoing agricultural intensification in agroforestry systems, ...
Coupling of dihydroriboflavin oxidation to the formation of the higher valence states of hemeproteins
(Elsevier, 1991-11-27)
SummaryThe reactions between hydrogen peroxide and hemeproteins have been coupled to the oxidation of dihydroriboflavin so as to provide a simple method for measuring the rate constant of hemeprotein peroxidation. ...
Different axes of environmental variation explain the presence vs. extent of cooperative nest founding associations in Polistes paper wasps
(Wiley Periodicals, Inc.Cambridge University Press, 2015-10)
Ecological constraints on independent breeding are recognised as major drivers of cooperative breeding across diverse lineages. How the prevalence and degree of cooperative breeding relates to ecological variation remains ...
A new 3D HN(CA)HA experiment for obtaining fingerprint H N -H α cross peaks in 15 N- and 13 C-labeled proteins
(Kluwer Academic Publishers; ESCOM Science Publishers B.V. ; Springer Science+Business Media, 1992-03)
A new 3D 1 H− 15 N− 13 C triple resonance experiment is presented that provides in-phase absorptive cross peaks between amide protons and α-protons of the same and the sequentially preceding residue. The experiment yields ...