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Publications (40)
The most noxious apple snails (Pomacea canaliculata and P. maculata) native to South America, currently have two distinct invaded ranges in China and the United States. Whether the environmental niches of the two closely related species have changed or remained stable (niche conservatism hypothesis) during the invasion process has become an importa...
The successful establishment of invasive populations is closely linked to environmental factors. It is unclear whether coexisting species in the native area follow the same genetic pattern in the invaded continents under the local climate factors. Two coexisting morphologically similar snails (Pomacea canaliculata and P. maculata), native to tropic...
Pomacea canaliculata is listed among the world’s 100 worst invasive species, for threatening rice production and wetland biodiversity. We compared morphological and genetic characteristics of the 14 P. canaliculata geographic populations in mainland China to explore morphological differentiation in relation to geographical isolation and climate eff...
BACKGROUND
Intercropping, which is growing two or more different crops in the same field simultaneously, is an effective traditional agricultural practice for productivity, resource utilization, and pest control. However, study on intercropping in paddy fields is limited. So in this study, field experiments of 2 years/four seasons (early and late s...
Exotic invasive plants endanger the integrity of agricultural and natural systems throughout the world. Thus, the development of cost-effective and economic application of invasive plants is warranted. Here, we characterized fifteen biochars derived from five invasive plants at different temperatures (300, 500, and 700 °C) by determining their yiel...
The most noxious apple snails ( Pomacea canaliculata and P. maculata ) native to South America, currently has two distinct invaded ranges in China and the United States. Whether the environmental niches of the two closely related species have changed or remained stable (niche conservatism hypothesis) during the invasion process has become an import...
The invasive and widespread golden apple snail (GAS, Pomacea canaliculata) is a harmful crop pest in many parts of Asia. The heavy use of molluscicides to control GAS could result in soil and water pollution as well as in loss of biodiversity. A sustainable and pollution-free control method is urgently needed to counteract this invasion. In this st...
Invasive species often show greater morphological plasticity than do native species. This plasticity increases their ability to evade predation, but differences in morphological defenses between sexes, including both dimorphism and predator-induced plasticity, remain poorly understood. We measured multiple shell characteristics of male and female a...
Rice-duck farming utilizes duck activity to mitigate methane (CH4) emissions from paddy fields. Ducks trample the root zone of rice (Oryza sativa L.) and produce vibrations in the soil as they move through the paddy field. This study aimed to determine the response of the CH4 flux, rice growth and microbial community under vibration. Vibration was...
BACKGROUND
A mixed‐cropping system that enhances farmland biodiversity has the potential to improve grain yield and quality; however, the impacts of growing different rice cultivars simultaneously has been rarely investigated. In the present study, five popular rice cultivars were selected and ten mixture combinations were made according to the gro...
The intensification of young hillside Dimocarpus longan orchard cultivation has led to increase soil erosion and decrease soil fertility in South China. Leguminous crops are often used for improving soil properties. An approximately 2-year-long field experiment in lateritic soil in South China was conducted to evaluate the effects of legume introdu...
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We present the complete mitochondrial genome of Pomacea maculate in this study. The mitochondrial genome is 15,512 bp in length, containing 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes. Overall nucleotide compositions of the light strand are 41.13% of A, 30.81% of T, 15.25% of C and 12.81% of G. Its gene arrangement and distribution are dif...
The long-term use of mineral fertilizers has decreased the soil fertility in papaya (Carica papaya L.) orchards in South China. In situ earthworm breeding is a new sustainable practice for improving soil fertility. A field experiment was conducted to compare the effects of four treatments consisting of the control (C), chemical fertilizer (F), comp...
Our aim was to study the morphological and physiological responses of rice to rubbing stimulation. Rice was subjected to rubbing 30 times/day (R30), 60 times/day (R60), 90 times/day (R90) and 0 times/day (control) for 35 days. The height, elongation rates and second internode length were significantly decreased by the three treatments, whereas stem...
The aim of this study was to compare the effects of four fertilizer applications—control (C), chemical fertilizer (F), compost (O), and in situ earthworm breeding (E)—on the growth, quality and yield of papaya ( Carica papaya L. ). In this study, 5 g plant ⁻¹ urea (CH 4 N 2 O, % N = 46.3%) and 100 g plant ⁻¹ microelement fertilizer was applied to e...
The golden apple snail Pomacea canaliculata is invasive in South China and poses serious harm to agricultural production and aquatic ecosystems. In the present study, we investigated the predatory potential of the spotted green pufferfish Tetraodon nigroviridis (50 mm in body length) on snails of various sizes in fresh and brackish water (4.5 ppt s...
We present the complete mitochondrial genome of Cipangopaludina cathayensis in this study. The mitochondrial genome is 15 706 bp in length, containing 13 protein-coding genes, two rRNA genes and 22 tRNA genes. Overall nucleotide compositions of the light strand are 40.97% of A, 30.78% of T, 20.48% of C and 12.60% of G. Its gene arrangement and dist...
Strategies encouraging the use of fewer agrochemicals while maintaining high yield are highly demanded for smallholder rice farmers. Intercropping helps to suppress pests and disease in upland farming systems. However, information on the role of intercropping in pest suppression and crop productivity in irrigated rice farming systems is sparse. To...
Golden apple snail (GAS) is one of the 100 worst invasive alien species. With the application of molluscicides to kill and control the spreading of these snails, a large amount of dead GAS shells are remained in many farms. This study ascertained the characteristics and removal of cadmium (Cd) by the GAS shell (GASS) powders and the associate mecha...
The toxicity of cold water (25±1℃) and boiling water extracts of 5-invasive plants including Mikania micrantha (Kunth), Wedelia trilobata (Linnaeus), Ageratum conyzoides (Linnaeus), Ambrosia artemisiifolia (Linnaeus) and Spartina alterniflora (Loisel) was examined on mortality of golden apple snails (Pomacea canaliculata Lamarck). The cold water ex...
To investigate the differences of digestive ability between the alien golden apple snails (Pomacea canaliculata (Lamarck was, 1828)) and local field snails (Cipangopaludina chinensis (Gray, 1832)), and hence to explore the successful invasion mechanism of golden apple snails, we assayed the following digestive enzyme activities: cellulose enzyme ac...
Rice-duck farming is a sustainable food system that provides rice and duck meat/eggs. Excessive application of commercial feedstuff for ducks weakens the sustainability of rice-duck farming. This study aims to investigate green forage (Lolium multiflorum Lam.) as a substitute for commercial grain mix, to attain a maximum economic benefit and pollut...
Abstract We present the complete mitochondrial genome of Cipangopaludina cathayensis in this study. The mitochondrial genome is 17,157 bp in length, containing 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes. All of them are encoded on the heavy strand except 7 tRNA genes on the light strand. Overall nucleotide compositions of the light strand...
Abstract We present the complete mitochondrial genome of the Achatina fulica in this study. The results show that the mitochondrial genome is 15,057 bp in length, which is comprised of 13 protein-coding genes, 2 rRNA genes, 21 tRNA genes. The nucleotide compositions of the light strand are 35.47% of A, 27.97% of T 19.46% of C, and 17.10% of G. Exce...
Many animals show alarm responses (ARs) to chemical cues released from predators or injured conspecifics. However, the prey often makes a trade-off between predation avoidance and reproduction, resulting in pronounced sex differences in AR and in sex-biased predation. This phenomenon has rarely been investigated in snails. The freshwater snail Poma...
Direct seeding has high potential to reduce water and labor use. However, the extension of conventional direct seeding is facing great golden apple snail pest problems. To establish an agrochemical-free management for reducing damage, an integrated approach combining rice-duck farming system and water management was developed. Results showed that d...
Duck has been used as a non-chemical control method against Pomacea canaliculata Lamarck, but little is known about its principles that underlie the control of snail populations. An indoor experiment was initially used to observe the predation potential of ducks, followed by replicated field trials. In the indoor studies, ducks effectively preyed o...
This study aimed to know whether the methane oxidation of rice roots was enhanced when rice shoots was stimulated. Stimulus was applied using a mechanical device which continuously touched the rice shoots with strength of 5, 30 and 60 min/day. In 5 min/day and 30 min/day stimuli treatments, methane oxidation rates of rice roots at 6 h were both sig...
A field experiment was conducted to study effects of different rice-based cropping systems on DPW (diseases, pests and weeds) hazards and yield of rice. The experiment was designed to have four treatments, i.e. conventional rice farming system (CR, control), conventional Oenanthe javanica farming system (CO), conventional intercropping of rice with...
Golden apple snail is one of the 100 pernicious alien invasive species in the world. In this study, the shell powder of golden apple snail was used as the adsorbent to approach its characteristics and mechanisms of lead (Pb 2+ ) removal from aqueous solution under laboratory condition. It was found that the removal rate of Pb2+ by the shell powder...
A laboratory experiment was conducted to study the effects of mechanical stimulation on the physiological characters of rice plant. Mechanical stimulation decreased the permeability of rice leaf plasma membrane, but, with the increase of stimulation intensity and treatment time, the permeability presented an increasing trend. The leaf chlorophyll a...
Golden apple snail was a harmful invasive gastropod in Asian wetlands. In order to clarify the effect of Pomacea canaliculata on macrophytes in paddy fields, feeding preference and nutrients utilization of snail were studied. Feeding preference of snail was Alternanthera philoxenoides>Monochoria vaginalis>Oryza sativa L. Snail showed a higher appro...
Rice-duck farming system is one of the means of organic rice farming, in which the weeds, diseases and insects could be effectively controlled with minimal or no pesticide and herbicide application. Whereas in conventional rice-duck farming system the controlling effect on diseases, insect pests and weeds was slowly disappeared after the rice headi...
Pomacea canaliculata is an invasive alien species very harmful to the rice production in South China. In this paper, an indoor incubation test was conducted to study the differences in the foraging rate and hepatic glycogen content of female and male P. canaliculata, and the self-designed T-maze and three-room connected device were adopted to obser...
Rice-duck farming was a traditional farming system in China and reintroduced to China's agricultural practice in recent years. We conducted an experiment to investigate whether rice-duck farming without pesticides can reduce pest damages on rice by comparing “without pesticide” and “with pesticide” in mono rice farming. The results showed that the...
A strain of sulfate-reducing bacteria, designated strain 'DBM', was isolated from sediments of a mining area. Phylogenetic analysis of the 16S rRNA gene sequence of the isolate revealed that it was related to members of the genus Citrobacter, with C. AzoR-4, C. freundii, C. braakii and C. werkmanii being the most closely related species (sequence s...