Central modulatory neurons control fuel selection in flight muscle of migratory locust
T Mentel, C Duch, H Stypa, G Wegener… - Journal of …, 2003 - Soc Neuroscience
Insect flight is one of the most intense and energy-demanding physiological activities. High
carbohydrate oxidation rates are necessary for take-off, but, to spare the limited carbohydrate …
carbohydrate oxidation rates are necessary for take-off, but, to spare the limited carbohydrate …
Intrinsic worker mortality depends on behavioral caste and the queens' presence in a social insect
…, MA Negroni, M Kever, S Emmling, H Stypa… - The Science of …, 2017 - Springer
According to the classic life history theory, selection for longevity depends on age-dependant
extrinsic mortality and fecundity. In social insects, the common life history trade-off between …
extrinsic mortality and fecundity. In social insects, the common life history trade-off between …
[HTML][HTML] A novel pyruvate kinase (PK-S) from boar spermatozoa is localized at the fibrous sheath and the acrosome
S Feiden, H Stypa, U Wolfrum, G Wegener… - …, 2007 - rep.bioscientifica.com
Boar spermatozoa contain a novel pyruvate kinase (PK-S) that is tightly bound at the acrosome
of the sperm head and at the fibrous sheath in the principal piece of the flagellum, while …
of the sperm head and at the fibrous sheath in the principal piece of the flagellum, while …
Antagonistic effects of hypertrehalosemic neuropeptide on the activities of 6-phosphofructo-1-kinase and fructose-1, 6-bisphosphatase in cockroach fat body
A Becker, JF Liewald, H Stypa, G Wegener - Insect Biochemistry and …, 2001 - Elsevier
Hypertrehalosemic neuropeptides from the corpora cardiaca such as the decapeptide Bld
HrTH bring about a profound switch in the metabolic activity of cockroach fat body during …
HrTH bring about a profound switch in the metabolic activity of cockroach fat body during …
[PDF][PDF] Trophic and temporal specialization in tropical ants and its relation to species coexistence and ecosystem functioning
MYI Houadria - 2016 - openscience.ub.uni-mainz.de
… Thanks also to Heike Stypa and the the technical team for the complex field work logistics
and Michael Grevé, Mona-Isabel Schmitt, Johanna Arndt and Eric Schneider for help in the …
and Michael Grevé, Mona-Isabel Schmitt, Johanna Arndt and Eric Schneider for help in the …
[BOOK][B] Impact of the age on early embryonic mortality (EEM) and embryo quality in the honey bee (Apis mellifera L.)
H Al-Lawati - 2009 - edoc.hu-berlin.de
This study on the honey bee, Apis mellifera, consists of three major parts. The first involves
the characteristics of the spermathecal content of old and young honey bee queen. The …
the characteristics of the spermathecal content of old and young honey bee queen. The …
[PDF][PDF] Impact of the age on early embryonic mortality (EEM) and embryo quality in the honey bee (Apis mellifera L.)
L Hassan - Citeseer
This study on the honey bee, Apis mellifera, consists of three major parts. The first involves
the characteristics of the spermathecal content of old and young honey bee queen. The …
the characteristics of the spermathecal content of old and young honey bee queen. The …
[CITATION][C] A novel pyruvate kinase (PK-S) localized at the fibrous sheath from boar spermatozoa is and the acrosome
S Felden, H Stypa, U Wolfrum… - …, 2007 - BIOSCIENTIFICA LTD EURO …
Heat production of frogs under normoxic and hypoxic conditions: a microcalorimetric study using a gas flow system
C Schulz, M Thuy, G Wegener - Thermochimica acta, 1991 - Elsevier
… Heike Stypa for excellent technical assistance. This work has been supported by grants (We
494) from the Deutsche Forschungsgemeinschaft, …
494) from the Deutsche Forschungsgemeinschaft, …
Characteristics of the spermathecal contents of old and young honeybee queens
H Al-Lawati, G Kamp, K Bienefeld - Journal of insect physiology, 2009 - Elsevier
Sperm are often stored, for a long time after mating, in females of various animal species. In
case of the queen honeybee (Apis mellifera), sperm remain fertile for several years in the …
case of the queen honeybee (Apis mellifera), sperm remain fertile for several years in the …