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Hiroe Yasui Toshiharu Akino Midori Fukaya Sadao Wakamura Hiroshi Ono 《Chemoecology》2008,18(4):233-242
Summary. We conducted a series of experiments with the white-spotted longicorn beetle Anoplophora malasiaca (Thomson), and its host plant, Citrus unshiu, to examine the origin of the sesquiterpene hydrocarbons (SHCs; including β-elemene, β-caryophyllene, α-humulene, α-farnesene,
and several unidentified compounds) that are contained in the elytra of the beetles and act as an attractant. In the laboratory,
mechanically wounded citrus branches, as well as those fed upon by A. malasiaca, attracted males more frequently than intact branches. Solid phase microextraction (SPME) and subsequent analyses by gas
chromatography (GC) analyses detected measurable SHCs from the air around both mechanically wounded and beetle-infested branches,
as well as trace amounts from intact branches. The SHCs were also detected for a certain time from beetles that had fed on
the citrus branches, but the amounts decreased rapidly after they were removed from the host. This decrease generally corresponded
with a reduction of attractiveness of the beetles in a behavioural assay. Isolated females acquired the SHCs after exposure
to, but not upon contact with, other females that had fed on C. unshiu branches. We hypothesize that the citrus SHCs are adsorbed in, retained on, and released from the wax layer of the beetle
elytra. Since these compounds are released from branches when beetles feed, they may indirectly signal the presence of beetles
to others in the field. The high response rate to SHCs by males is likely representing mate searching behavior. The SHCs act
as kairomones with a releaser effect in the communication system of A. malasiaca.
Hiroe Yasui, Toshiharu Akino, Midori Fukaya: These authors contributed equally to this article. 相似文献
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Summary. Under field conditions significantly more black
chafer, Holotrichia loochooana loochooana (Sawada)
(Coleoptera: Scarabaeidae) males landed on black and gray
sources than white ones containing 10 mg of female
pheromone, anthranilic acid. When a broader spectrum of
colours was tested the frequency of male landing was intensively
proportional to as the lightness of the colour of the
lures. These findings demonstrated that mate location by
H. l. loochooana males is dependent on
both olfactory and visual stimuli of the source. In contrast, female aggregation was not
affected by colour. 相似文献
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Investigating the potential of functionalized MCM-41 on adsorption of Remazol Red dye 总被引:1,自引:0,他引:1
Danilo Oliveira Santos Maria de Lourdes Nascimento Santos José Arnaldo Santana Costa Roberta Anjos de Jesus Sandro Navickiene Eliana Midori Sussuchi Maria Eliane de Mesquita 《Environmental science and pollution research international》2013,20(7):5028-5035
The modification of MCM-41 was performed with 3-aminopropropyltrimethoxysilane. The structural order and textural properties of the synthesized materials were studied by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetry/differential thermogravimetry, nitrogen adsorption, and desorption analysis. The adsorption capacity of NH2-MCM-41 was studied with Remazol Red dye. The following parameters were studied in the adsorption process: pH, temperature, adsorbent dosage, and initial concentration. The desorption process was studied in different concentrations of NaOH solutions. The Freundlich isotherm model was found to be fit with the equilibrium isotherm data. Kinetics of adsorption follows the modified Avrami rate equation. The maximum adsorption capacity was estimated to be 45.9 mg?g?1, with removal of the dye of 99.1 %. The NH2-MCM-41 material exhibited high desorption capacity with 98.1 %. 相似文献
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Jedediah F. Brodie Midori Paxton Kangayatkarasu Nagulendran G. Balamurugan Gopalasamy Reuben Clements Glen Reynolds Anuj Jain Jason Hon 《Conservation biology》2016,30(5):950-961
We examined the links between the science and policy of habitat corridors to better understand how corridors can be implemented effectively. As a case study, we focused on a suite of landscape‐scale connectivity plans in tropical and subtropical Asia (Malaysia, Singapore, and Bhutan). The process of corridor designation may be more efficient if the scientific determination of optimal corridor locations and arrangement is synchronized in time with political buy‐in and establishment of policies to create corridors. Land tenure and the intactness of existing habitat in the region are also important to consider because optimal connectivity strategies may be very different if there are few, versus many, political jurisdictions (including commercial and traditional land tenures) and intact versus degraded habitat between patches. Novel financing mechanisms for corridors include bed taxes, payments for ecosystem services, and strategic forest certifications. Gaps in knowledge of effective corridor design include an understanding of how corridors, particularly those managed by local communities, can be protected from degradation and unsustainable hunting. There is a critical need for quantitative, data‐driven models that can be used to prioritize potential corridors or multicorridor networks based on their relative contributions to long‐term metacommunity persistence. 相似文献
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