• Publications
  • Influence
A review of the ecological parameters and implications of subsociality in Parastrachia japonensis (Hemiptera: Cydnidae), a semelparous species that specializes on a poor resource
TLDR
It is suggested that semelparity and progressive provisioning in P. japonensis are extreme adaptations to evolving complete dependency on an unreliable resource. Expand
19 Pregnancy rates in dairy cows treated with intravaginal progesterone devices and different fixed-time AI protocols.
TLDR
It is suggested that the addition of eCG will improve pregnancy rates following FTAI in lactating dairy cows treated with EB but not in those treated with GnRH at the time of insertion and after removal of a P4 releasing device. Expand
C211 The adaptiveness of parental care in Parastrachia japonensis (Hemiptera: Cydnidae)
TLDR
Because aggregations are apparently essential for successful feeding in the early stages and a prolonged nesting period probably affords protection against predation and desiccation, progressive provisioning may have evolved in response to these environmental pressures as well as in response of the resource constraints. Expand
Trophic Egg Production in a Subsocial Shield Bug, Parastrachia japonensis Scott (Heteroptera: Parastrachiidae), and its Functional Value
TLDR
It is demonstrated that an additional manifestation of the parental care behaviors that P. japonensis females use to increase their reproductive success is the production of trophic eggs, and their presence is correlated with significant increases in nymphal weight, developmental rate and survival in the absence of other food. Expand
Reduction of respiration rates by forming aggregations in diapausing adults of the shield bug, Parastrachia japonensis.
TLDR
It was demonstrated that diapausing adults had a high tendency to form clusters with no sexual bias, and the reduction in oxygen consumption in P. japonensis was due mostly to physical contact with other individuals and partly to chemical cue that functioned to settle them down and resulted in a greatly reduced respiration rate. Expand
Individual Variation in Trophic Egg Production: Evidence for Maternal Manipulation in Response to Resource and Competition Levels
TLDR
The hypothesis that trophic egg abundance is induced by maternal phenotype (weight, body size) and resource exposure is supported and the findings support the hypothesis that resource availability and, to a lesser extent, maternal phenotype affect trophIC egg abundance. Expand
22 PREGNANCY RATES IN DAIRY COWS TREATED WITH PROGESTERONE-RELEASING DEVICES AND DIFFERENT GONADOTROPIN-RELEASING HORMONE OR ESTRADIOL PLUS EQUINE CHORIONIC GONADOTROPIN FIXED-TIME ARTIFICIAL
TLDR
Results of these experiments suggest that treatments with progesterone-releasing devices, EB, and eCG result in pregnancy rates that are comparable to or better than those obtained in GnRH-based protocols in lactating dairy cows. Expand
Provisioned Parastrachia japonensis (Hemiptera: Cydnidae) nymphs gain access to food and protection from predators
TLDR
Selective provisioning of good-quality drupes by female P. japonensis, a semelparous species, was necessary for young nymphs to obtain enough food for their development and significantly reduced early mortality in the presence of a predator. Expand
Hierarchical use of chemical marking and path integration in the homing trip of a subsocial shield bug
TLDR
It is suggested that the chemical cues marked around a female's burrow can suppress the use of path integration, and that P. japonensis uses cues hierarchically to accomplish precise homing. Expand
Canopy compass in nocturnal homing of the subsocial shield bug, Parastrachia japonensis (Heteroptera: Parastrachiidae)
TLDR
The results show that Parastrachia japonensis could perform the round trip foraging behaviour even in an experimental arena with only an artificial round gap opened in the ceiling of the arena and adjust their homing direction for a new azimuth when the gap was rotated. Expand
...
1
2
3
4
...