Is conspecific substrate marking a long-term external memory of previously colonized overwintering sites in Harmonia axyridis ?

2013 ◽  
Vol 138 (5) ◽  
pp. 338-345 ◽  
Author(s):  
D. Durieux ◽  
B. Fassotte ◽  
M. Vanderplanck ◽  
Y. Brostaux ◽  
C. Fischer ◽  
...  
Chemosphere ◽  
2019 ◽  
Vol 219 ◽  
pp. 678-683 ◽  
Author(s):  
Rodrigo L. Oliveira ◽  
Pablo C. Gontijo ◽  
Rafaella R. Sâmia ◽  
Geraldo A. Carvalho

2020 ◽  
Vol 12 (11) ◽  
pp. 1874
Author(s):  
Kun Fu ◽  
Yang Li ◽  
Wenkai Zhang ◽  
Hongfeng Yu ◽  
Xian Sun

The encoder–decoder framework has been widely used in the remote sensing image captioning task. When we need to extract remote sensing images containing specific characteristics from the described sentences for research, rich sentences can improve the final extraction results. However, the Long Short-Term Memory (LSTM) network used in decoders still loses some information in the picture over time when the generated caption is long. In this paper, we present a new model component named the Persistent Memory Mechanism (PMM), which can expand the information storage capacity of LSTM with an external memory. The external memory is a memory matrix with a predetermined size. It can store all the hidden layer vectors of LSTM before the current time step. Thus, our method can effectively solve the above problem. At each time step, the PMM searches previous information related to the input information at the current time from the external memory. Then the PMM will process the captured long-term information and predict the next word with the current information. In addition, it updates its memory with the input information. This method can pick up the long-term information missed from the LSTM but useful to the caption generation. By applying this method to image captioning, our CIDEr scores on datasets UCM-Captions, Sydney-Captions, and RSICD increased by 3%, 5%, and 7%, respectively.


2021 ◽  
pp. 571-642
Author(s):  
Michael A. Arbib

The IBSEN model of Imagination in Brain Systems for Episodes and Navigation explores how the architect’s experience is brought to bear in the design of architecture by building on the VISIONS model of understanding a visual scene and the TAM-WGM model of navigation. IBSEN develops the idea that a building provides both views from various viewpoints and places where particular experiences can be felt, and actions can be performed. For this, the design must support a variety of scripts for both practical and contemplative action and the cognitive maps that relate places for them. Nodes from different maps may be combined as scripts are harmonized with respect to a specific embedding of places in three-dimensional space. The chapter examines the role of the hippocampus in episodic memory and imagination, and observes that memory and imagination, episodic or not, are construction processes. During design, long-term working memory links internal and external memory systems, providing priority access to (but not only to) memory fragments that have proved relevant to the current design process. The designer in some sense “inverts” imagined experiences and behaviors of users of the forthcoming building. As the book ends, the author notes that we are only at the beginning of new collaborative studies that take cog/neuroscience out of the lab and into the building and the street.


Insects ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 243 ◽  
Author(s):  
Qiao Gao ◽  
Bing-Xin Wei ◽  
Wen Liu ◽  
Jia-Lu Wang ◽  
Xing-Miao Zhou ◽  
...  

Diapause control is one of the successful methods for long-term cold storage of biological control organisms without decreasing their fitness. Sufficient preparation before diapause is essential for successful diapause initiation and maintenance. Harmonia axyridis, an important biocontrol agent in its native place, can enter reproductive diapause for overwintering. However, the key preparatory events before diapause in H. axyridis, such as specific developmental trajectory, timing, and physiological changes, remain unclear. We compared differences in the development of internal reproductive organs, feeding amount and nutrient storage between pre-diapause and pre-reproductive adult H. axyridis which had been reared at 20 °C under a short-day (10L:14D) and long-day (14L:10D) condition, respectively. The results showed that there were obvious morphological differences in internal reproductive organs of diapause and reproductive H. axyridis. The development of internal reproductive organs was suppressed at early adult stage in pre-diapause beetles compared to pre-reproductive beetles. Feeding amount in both pre-diapause and pre-reproductive beetles increased for more than ten days after eclosion. The feeding amount of pre-diapause beetles sharply decreased from the 15th day after eclosion in females and the 14th day after eclosion in males, which implied the initiation of diapause. During the pre-diapause stage, carbohydrates and lipids were mainly accumulated by females, whereas males mainly accumulated carbohydrates. Our results not only provide basic information about the diapause process of pre-diapause stage, but also give tips to better utilization of diapause strategy during mass production and storage of H. axyridis.


BioControl ◽  
2017 ◽  
Vol 62 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Tomokazu Seko ◽  
Junichiro Abe ◽  
Kazuki Miura ◽  
Mitsuharu Hikawa
Keyword(s):  

Insects ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 883
Author(s):  
Marc Kenis ◽  
Saidou Nacambo ◽  
Johan Van Vlaenderen ◽  
Renate Zindel ◽  
René Eschen

A long-term monitoring was conducted at 40 sites in four different habitats in north-western Switzerland to observe changes in populations of native ladybirds, following the invasion of the Asian harlequin ladybird, Harmonia axyridis. From 2006 to 2017, the same trees and meadows were sampled at least seven times per year using standard protocols. On 15 broadleaved hedges, H. axyridis quickly became the dominant species, representing 60 to 80% of adult ladybirds collected. It was second in abundance at five pine (Pinus sylvestris) stands and was a minor component of the ladybird complex at five spruce (Picea abies) stands and in 15 meadows. This survey revealed the severe decline of Adalia bipunctata, which was the most abundant native ladybird on broadleaved trees in 2006–2009 and has almost disappeared since 2010. So far, other native ladybirds do not seem to decline significantly, including species occupying the same ecological niches as H. axyridis. The total number of aphidophagous ladybirds did not decline either, suggesting that the biological control function of ladybirds on aphids living in these habitats has not been affected by the arrival of H. axyridis. Recommendations are given to further assess the impact of H. axyridis on native ladybirds and aphids.


Sign in / Sign up

Export Citation Format

Share Document