scholarly journals Pseudogagrella amamiana (Opiliones: Sclerosomatidae) from Kanto District, Japan, as the first probable cases of domestically introduced species in Japanese harvestmen

2020 ◽  
Vol 69 (2) ◽  
pp. 109-113
Author(s):  
Amane Takehara ◽  
Yusuke Tsuji ◽  
Tsurusaki Nobuo
Keyword(s):  
Introduced Species ◽  
Kanto District

A method for rearing Arhopalus ferus (Mulsant) (Coleoptera Cerambycidae) larvae on a modified artificial diet

2015 ◽  
Vol 68 ◽  
pp. 353-359 ◽  
Author(s):  
A.M. Barrington ◽  
D.P. Logan ◽  
P.G. Connolly
Keyword(s):  
Introduced Species ◽  
Artificial Diet ◽  
Larval Density ◽  
Pine Bark ◽  
Pine Wood ◽  
Rearing Method ◽  
Sawn Timber

Burnt pine longhorn (BPL) Arhopalus ferus (Mulsant) (Coleoptera Cerambycidae) is an introduced species sometimes found in association with export logs and sawn timber A rearing method was developed to produce larvae of a known age number and quality for control trials Growth of larvae from newly hatched to 5 weeks was measured on a standard cerambycid artificial diet and on modified diets Replacing pine wood with pine bark sawdust increased survival at 5 weeks from 23 to 76 and mean weight from 9 to 21 mg There were significant interactions between the influences of three factors (diet period of rearing initial larval density) on the weight of surviving larvae Individual rearing was preferred for convenience and a standardised method was used to rear 8740 larvae for disinfestation trials Establishment and survival to 6 weeks for these larvae was 97

Unravelling facilitation among introduced species, a mechanistic approach

2021 ◽  
Author(s):  
Patricio Javier Pereyra ◽  
Paula de la Barra ◽  
Juan Francisco Saad ◽  
Marianela Gastaldi ◽  
Andrea Evangelina Arcángel ◽  
...  
Keyword(s):  
Introduced Species ◽  
Mechanistic Approach

TWELVE-SPOTTED ASPARAGUS BEETLE IN CONNECTICUT

1903 ◽  
Vol 35 (7) ◽  
pp. 188-188 ◽  
Author(s):  
W. E. Britton
Keyword(s):  
New Jersey ◽  
Introduced Species ◽  
The State ◽  
New Haven ◽  
Male And Female

Crioceris12-punctata, Linn, is an introduced species, and has been working northward from Maryland, according to Professor J.B. Smith, who some time ago informed me that it was present in New Jersey, and would in time reach Connecticut. The first speciment recorded from the State was taken by a student assistant June, 16th, 1902, who collected a single speciment on asparagus upon the Station grounds in New Haven. On May 23rd, 1903, I took male and female specimens from the same locality. We may now expect this species to become thoroughly established here as a pest of asparagus, beetle, C. asparagi, Linn.

scholarly journals Intensified Interspecific Competition for Water after Afforestation with Robinia pseudoacacia into a Native Shrubland in the Taihang Mountains, Northern China

2021 ◽  
Vol 13 (2) ◽  
pp. 807
Author(s):  
Wanrui Zhu ◽  
Wenhua Li ◽  
Peili Shi ◽  
Jiansheng Cao ◽  
Ning Zong ◽  
...  
Keyword(s):  
Soil Water ◽  
Introduced Species ◽  
Water Use ◽  
Rainy Season ◽  
Robinia Pseudoacacia ◽  
Water Source ◽  
Total Water ◽  
Mountainous Areas ◽  
Water Competition ◽  
Seasonal Water Use

Understanding how soil water source is used spatiotemporally by tree species and if native species can successfully coexist with introduced species is crucial for selecting species for afforestation. In the rocky mountainous areas of the Taihang Mountains, alien Robinia pseudoacacia L. has been widely afforested into the native shrublands dominated by Ziziphus jujuba Mill var. spinosa and Vitex negundo L. var. heterophylla to improve forest coverage and soil nutrients. However, little is known about the water relation among species, especially seasonal water use sources in different microsites. We selected the soil and plant xylem samples of two opposite microtopographic sites (ridge and valley) monthly in the growth season to analyze isotope composition. The proportions of water sources were quantified by the MixSIAR model and compared pairwise between species, microsites and seasons. We found that deep subsoil water at a depth of 40–50 cm contributed up to 50% of the total water uptake for R. pseudoacacia and Z. jujuba in the growing season, indicating that they stably used deeper soil water and had intense water competition. However, V. negundo had a more flexible water use strategy, which derived more than 50% of the total water uptake from the soil layer of 0–10 cm in the rainy season, but majorly captured soil water at a depth of 30–50 cm in the dry season. Therefore, high niche overlaps were shown in V. negundo with the other two species in the dry season, but niche segregation was seen in the rainy season. The microtopographic sites did not shift the seasonal dynamic of the water source use patterns of the three studied species, but the water use niche overlap was higher in the valley than in the ridge. Taken together, the introduced species R. pseudoacacia intensified water competition with the native semi-arbor species Z. jujuba, but it could commonly coexist with the native shrub species V. negundo. Therefore, our study on seasonal water use sources in different microsites provides insight into species interaction and site selection for R. pseudoacacia afforestation in the native shrub community in rocky mountainous areas. It is better to plant R. pseudoacacia in the shrubland in the valley so as to avoid intense water competition and control soil erosion.

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