cheng, yunxia min, hu kang, aiguo xiao, yonghong luo, lizhi jiang, xingfu
Beet webworms, Loxostege sticticalis L. (Lepidoptera: Pyralidae), are one of the most destructive pest insects in northern China, and their populations outbreak periodically. Developing an indicator that defines the ending and beginning of the occurrence period cycle is urgent for the population forecast and theoretical study. The sex ratio can be ...
Mattila, Heather R. Nguyen, Lien T.P. Perrard, Adrien Bain, Maggie Otis, Gard W.
Published in
Frontiers in Insect Science
Giant hornets in the genus Vespa are apex predators that are known throughout Asia for their exceptional size and devastating group attacks on social insect colonies. The giant hornets include Vespa mandarinia, a well-studied and widespread temperate species, and Vespa soror, a poorly known sister species that is limited to subtropical and tropical...
Lu, Hong-Liang Gao, Jian-Fang Guo, Kun Ji, Xiang
Published in
Current zoology
We used Takydromus septentrionalis, a sexually size-monomorphic lacertid lizard, as a model system to test the hypothesis that sexual size monomorphism may evolve in lizards where reproductive performance is maximized at a similar body size for both sexes. We allowed lizards housed in laboratory enclosures to lay as many clutches (for females) as t...
Liu, Junyan He, Xiong Z Zheng, Xia-Lin Zhang, Yujing Wang, Qiao
Published in
Insect science
Male animals often adjust their sperm investment in response to sperm competition environment. To date, only a few studies have investigated how juvenile sociosexual settings affect sperm production before adulthood and sperm allocation during the first mating. Yet, it is unclear whether juvenile sociosexual experience (1) determines lifetime sperm...
Mikát, Michael Janošík, Lukáš Černá, Kateřina Matoušková, Eva Hadrava, Jiří Bureš, Vít Straka, Jakub
Published in
Proceedings of the National Academy of Sciences of the United States of America
Parental care behavior evolves to increase the survival of offspring. When offspring care becomes complicated for ecological reasons, cooperation of multiple individuals can be beneficial. There are two types of cooperative care: biparental care and worker (helper)-based care (e.g., eusociality). Although biparental care is common in several groups...
French, Bryan Wade Hammack, Leslie Tallamy, Douglas W
Published in
Insects
Insect resistance to population control methodologies is a widespread problem. The development of effective resistance management programs is often dependent on detailed knowledge regarding the biology of individual species and changes in that biology associated with resistance evolution. This study examined the reproductive behavior and biology of...
McFarlane, Dylan J. Rafter, Michelle A. Booth, David T. Walter, Gimme H.
Published in
Journal of Insect Behavior
How tiny insects respond to prevailing rainfall events to protect themselves from water droplets is poorly known. If such insects could anticipate impending rainfall and take shelter to avoid being hit by rain drops their chances of surviving such events would be increased. Some insect species can detect atmospheric pressure changes associated with...
Huth-Schwarz, Anett León, Adolfo Vandame, Rémy Moritz, Robin F. A. Kraus, F. Bernhard
Published in
Apidologie
So far, nearly all studies concerning the mating frequency of bumblebees have been conducted with temperate species, showing that single mating seems to be the predominant pattern in bumblebees. Studies involving tropical species, however, are still scarce. Here, we determined the mating frequency of queens of the tropical bumblebee species, Bombus...
van Emous, R.A.
Een praktijkproef van ing. van Emous, onderzoeker bij de divisie Veehouderij van Animal Sciences Group van Wageningen UR in Lelystad, wijst uit dat het goed mogelijk is hennen en hanen overdag enkele uren te scheiden. Dit lijkt het paargedrag te stimuleren en heeft goede uitkomstresultaten.
Takahashi, Jun-ichi Hashim, Sulaiman B. Tingek, Salim Shimizu, Isamu Yoshida, Tadaharu
Published in
Apidologie
