Efficient collection device for farmland arthropod diversity investigation

Abstract

The utility model discloses an efficient collecting device for farmland arthropod diversity investigation. The efficient collecting device comprises an insect suction cavity, insect body containing pipes, a fan and a handle, wherein the insect suction cavity is composed of a head end air suction pipe, a middle air suction pipe and a tail end air suction pipe, and the insect body containing pipes are correspondingly arranged on the lower side faces of the air suction pipes in an inserted mode. The arthropod collecting device is simple in structure, through the arrangement of a plurality of isolation mesh screens and the arthropod containing pipes, the arthropods of different sizes can be collected in batches, the collecting process is in a non-contact mode, the collecting speed is high, labor input is reduced to a great extent, operation is easy and convenient, carrying is convenient, more arthropods can be collected, and the arthropod collecting device is worthy of popularization and application. The arthropod collecting efficiency is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of field insect detection, and in particular relates to a high-efficiency collection device for investigating the diversity of arthropods in farmland. Background Art

[0002] Arthropods, primarily spiders and insects, are the largest group of terrestrial animals. Insect species are particularly numerous (estimated at 1.8 to 30 million), and the abundance of individuals within a species is astonishing. Arthropod diversity is a crucial component of biodiversity and one of the most fundamental areas of research in ecology. Research has shown that arthropod diversity is closely related to the variety and abundance of plants in their habitats. Agricultural production is a significant factor influencing arthropod diversity. Species diversity is closely linked to community stability: higher diversity indicates more stable communities.

[0003] Farmland arthropod biodiversity refers specifically to all species (including various pests, natural enemies, and neutral insects) that grow, reproduce, inhabit, feed, migrate, and seek refuge within complex farmland ecosystems, as well as the complex trophic relationships among them. Arthropod diversity in my country's farmland ecosystems is extensive and rich. Understanding the current state of arthropod diversity, accurately describing and evaluating the relationships between species, and developing effective strategies to protect farmland arthropods and their natural enemies are urgent issues. Therefore, studying the structure and dynamics of farmland arthropod communities in different habitats is a current research hotspot. In particular, research on arthropod diversity is crucial for controlling pest population fluctuations and implementing integrated pest management.

[0004] Comprehensive and systematic surveys of farmland arthropod diversity can provide effective countermeasures to threats faced by farmland arthropods and the protection of their natural enemies. Arthropods in farmland (aquatic) fields are a crucial component of biodiversity and have been a key focus of biodiversity conservation research in recent years. Due to the unique habitats and diverse lifestyles of farmland (aquatic) arthropods, coupled with the relatively inadequate traditional resource survey methods, basic biological data on many field species, such as population distribution, size, and dynamics, is lacking. This severely hinders the assessment, conservation, stocking, and development and utilization of farmland (aquatic) arthropod resources. Traditional surveys of arthropods in aquatic vegetable fields primarily rely on on-site color plate methods and light trapping to collect and analyze specimens. These methods are often time-consuming and labor-intensive, and may harm the target species or disrupt the ecosystem at the survey site. Therefore, a more efficient survey device for aquatic vegetable fields is urgently needed.

[0005] To date, there are two papers on the survey of arthropod diversity in paddy fields: the first one is Journal of Yunnan Agricultural University (Natural Science), 2021, 36(5): 775-782, Analysis of Arthropod Community Structure and Stability in Perennial Rice Fields, Yang Shaowu, Fu Yang, Li Xingxing, Jiang Zhengxiong, Zhang Xiaoming, and Chen Guohua, which mentioned that four plots were selected in perennial rice and conventional rice fields respectively, and at each sampling point, an insect net was waved back and forth 10 times on the top of the rice bush. A white porcelain plate (length × width × height = 30 cm × 20 cm × 5 cm) with a small amount of detergent water was placed in the lower part of the rice bush, and the rice bush was patted 5 times by hand. The species and number of arthropods in the insect net, the white porcelain plate, and the naked eye were recorded. A sweet and sour wine trap was placed in the center of each plot, and two yellow boards and two yellow discs were placed diagonally near the outer corners of the plot. The hanging height of each trap increased with the growth of rice. Second, the Acta Entomologica Sinica, 2024, pp. 1-17, Diversity of Arthropod Communities in Rice Fields of Wuqing District, Tianjin, by Xu Jianhui, Liu Baiming, Bai Yichuan, Wang Fang, He Liang, Gu Xishu, Zhang Lixiang, and Yang Zezhong, mentioned that three survey plots were randomly selected, with 16 plots randomly selected in each plot, and each plot had an area of 4 m 2 8 sampling points were sampled using the sweeping net method, and 8 sampling points were sampled using the manual culling method. Sampling methods: (1) Sweeping net method: Sampling was performed using a Z-shaped sweeping net within the set sample plot, sweeping the net once per step, with 180° as one repetition, and 10 repetitions per sample plot. (2) Manual culling method: 20 rice clumps were selected diagonally within each sample plot, and manual culling was performed using plastic trays and small net bags in the middle and lower layers of the rice. The samples collected were first sealed in plastic bags, labeled, and brought back to the laboratory.

[0006] While these methods have been successful in capturing some arthropods, traditional trapping methods (especially color-tag trapping) can easily damage the insects and their appendages (such as wings, legs, and long antennae), hindering subsequent identification, specimen preparation, and accurate species identification. Furthermore, insect nets are easily soaked, making collection time-consuming and labor-intensive, and the captured organisms difficult to package. Some inactive, microscopic arthropods (such as aphids) are difficult to capture with sweep nets, and some arthropods, which are small or have hidden habitats, are also difficult to capture. This creates a significant workload, consuming both time and effort. Furthermore, during the process of opening the nets to collect arthropods, many escape due to their agility or flight, compromising accurate assessments of arthropod diversity. In addition, although white porcelain plates with detergent water and sweet and sour wine can prevent arthropods from escaping, the original body color of arthropods immersed in these two solutions is difficult to retain, and multiple arthropods or multiple arthropods are mixed together, which makes species identification very difficult. Although yellow boards can trap arthropods, they are only effective for yellow-taxis arthropods, and arthropods stuck to yellow boards cannot be fully obtained and specimens cannot be made. The above problems bring many difficulties to subsequent species identification, diversity analysis and molecular biology related research. Therefore, there is an urgent need to solve the difficult problems that arise in the process of investigating the diversity of arthropods in farmland (water) fields. The key prerequisite for solving this problem is to provide a portable and efficient collection device that can capture arthropods efficiently and at multiple levels. Utility Model Content

[0007] In response to the problems existing in the prior art, the purpose of the present invention is to provide an efficient collection device for surveying the diversity of arthropods in farmland, which is specifically achieved through the following technical solutions:

[0008] An efficient collection device for surveying arthropod diversity in farmland, comprising:

[0009] Trematode cavity: The trematode cavity is composed of three hollow cylindrical suction pipes connected in sequence, namely the head suction pipe, the middle suction pipe and the end suction pipe;

[0010] Insect receiving tube: used to receive insects entering from the insect trematode cavity, and correspondingly plugged into the lower side of the suction tube;

[0011] Fan: installed in the fan cover, which is arranged at the end of the terminal suction pipe away from the middle suction pipe;

[0012] Handle: Installed on the upper surface of the terminal suction pipe, the handle is equipped with a fan start switch, a wind speed adjustment button and a lithium battery, and the lithium battery is used to power the fan.

[0013] Furthermore, the pipe opening of the head-end suction pipe is arranged at an angle, and the air inlet end of the middle suction pipe is provided with a first isolation mesh screen with a mesh diameter of 1.5 cm.

[0014] Furthermore, a second isolation mesh screen with a mesh size of 5.0 mm is provided at the air inlet end of the terminal air suction pipe, and a third isolation mesh screen with a mesh size of 0.125 mm is provided at the air outlet end of the terminal air suction pipe.

[0015] Furthermore, the front ends of the middle air suction pipe wall and the front ends of the end air suction pipe wall are both provided with elastic buckles, and the rear ends of the head end air suction pipe and the rear ends of the middle air suction pipe are both provided with plug holes that cooperate with the elastic buckles.

[0016] Furthermore, the insect storage tube includes a tube body and a cover body installed with a support rod. The top end of the tube body can be detachably inserted under the corresponding suction tube and is located at the front end of the corresponding isolation screen.

[0017] Furthermore, the cover body is connected to the lower end of the insect body storage tube through a thread, and an isolation mesh is fixed to the top of the support rod, and a plurality of small holes are evenly distributed on the isolation mesh.

[0018] Furthermore, the outer edge of the isolation mesh plate contacts the inner wall of the insect receiving tube, and a cotton ball soaked in fumigant is placed in the cover.

[0019] Furthermore, the investigation device also includes a support frame, which includes a triangular support plate, a semicircular support bracket that matches the outer wall of the terminal suction pipe, and a support column connecting the triangular support plate and the support bracket.

[0020] The utility model has a simple structure and can collect insects of different sizes in batches by setting up multiple isolation screens and insect storage tubes. The collection process is non-contact and the collection speed is fast, which greatly reduces the labor input. It is easy to operate and carry, and can collect more types and quantities of arthropods, thereby significantly improving the efficiency of collecting arthropods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] In the figure, 1-insect suction cavity, 101-head end suction pipe, 102-middle suction pipe, 103-end suction pipe, 2-insect body storage tube, 201-tube body, 202-support rod, 203-cover body, 204-isolation mesh plate, 205-small hole, 3-fan cover, 4-handle, 401-fan start switch, 402-fan speed adjustment button, 403-lithium battery, 5-elastic buckle, 6-support frame, 601-triangular support plate, 602-support bracket, 603-support column. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings to provide a better understanding of the technical solution of the present invention.

[0024] like Figure 1 As shown, the utility model is an efficient collection device for surveying the diversity of arthropods in farmland, comprising a trematode cavity 1, an worm receiving tube 2, a fan and a handle 4. The fan is installed at the end of the trematode cavity 1 to inhale external air, and the worm receiving tube 2 is used to receive the arthropods inhaled into the trematode cavity. The setting of the handle 4 not only facilitates carrying but also has the function of controlling the start and stop of the fan and the wind speed.

[0025] Among them, the trematode cavity 1 is composed of a head-end suction pipe 101, an intermediate suction pipe 102 and a terminal suction pipe 103 which are plugged in in sequence. The head-end suction pipe 101, the intermediate suction pipe 102 and the terminal suction pipe 103 are all hollow cylindrical, and the pipe body is made of PVC material. Each section is 30 cm long. The front end of the wall of the intermediate suction pipe 102 and the front end of the wall of the terminal suction pipe 103 are both provided with elastic buckles 5, and correspondingly, the rear end of the head-end suction pipe 101 and the rear end of the intermediate suction pipe 102 are both provided with plug-in holes that cooperate with the elastic buckles 5. The setting of the elastic buckle 5 and the plug-in holes realizes the plug-in setting between adjacent suction pipes.

[0026] In order to achieve separate collection of arthropods of different sizes, isolation screens with different apertures and insect receiving tubes 2 are provided at the ends of the corresponding suction pipes. The insect receiving tubes 2 are correspondingly plugged into the lower side of each suction pipe, and the pipe mouth of the insect receiving tube 2 is located at the front end of the corresponding isolation screen. Specifically: the air inlet end of the middle suction pipe 102 is provided with a first isolation screen with a sieve hole diameter of 1.5 cm for collecting large arthropods; the air inlet end of the terminal suction pipe 103 is provided with a second isolation screen with a sieve hole diameter of 5.0 mm for collecting smaller arthropods; the air outlet end of the terminal suction pipe 103 is provided with a third isolation screen with a sieve hole diameter of 0.125 mm for collecting micro insects.

[0027] The mouth of the suction pipe 101 at the head end is set at an angle to ensure that it is flush with the contact surface, which is conducive to close contact with the stems and other parts of the plant, and is convenient for preliminary positioning and restriction of arthropods before they are sucked in; the fan is installed in the fan cover 3, and the fan cover 3 is set at one end of the terminal suction pipe 103 away from the middle suction pipe 102. The handle 4 is installed on the upper surface of the terminal suction pipe 103, and the handle 4 is equipped with a fan start switch 401, a fan speed control button 402 and a lithium battery 403 for powering the fan. The setting of the fan is convenient for generating suction, sucking external air into the trematode cavity 1, and using this suction to suck arthropods into the trematode cavity 1. The setting of the handle 4 can not only facilitate gripping, but also adjust the start and stop of the fan and the wind speed.

[0028] The insect body receiving pipe 2 comprises a body 201 that is 10cm in diameter, a cover 203 that supports rod 202 is installed, the top of body 201 is removably plugged in the below of corresponding air suction pipe, the lower end of cover 203 is connected by screw thread with the insect body receiving pipe 2, and the cotton balls that are soaked with fumigant are placed in the cover 203, the top of support rod 202 is fixed with isolation mesh plate 204, the isolation mesh plate 204 is evenly provided with a plurality of 140 purpose apertures 205, is used for the effective volatilization of fumigant, so that arthropod is effectively, rapidly killed.Be connected with the screwing of body 201 for convenience, the outer edge of isolation mesh plate 204 touches the inwall of insect body receiving pipe 2, and this setting avoids the outer edge of body 201 inwalls and isolation mesh plate 204 to produce friction in the screwing process.

[0029] In order to support the investigation device temporarily parked on a flat place such as the ground, the investigation device also includes a support frame 6, which includes a triangular support plate 601, a semicircular support bracket 602 that matches the outer wall of the terminal suction pipe 103, and a support column 603 connecting the triangular support plate 601 and the support bracket 602.

[0030] This new survey device is simple to operate, saves time and effort, and is reusable. One collection device can trap 100 or more arthropods at a time. To collect, simply unscrew the lid and place the arthropods on the isolation screen into a collection bottle or bag. The different trematode chambers and isolation screens effectively divert the large number of arthropods of varying stages entering the chambers, reducing mixing to a certain extent and significantly improving the efficiency of collecting arthropods by batch and size.

[0031] The survey device with this new structure allows for rapid arthropod collection with virtually no human interference. This prevents premature death or young arthropods from falling to the ground and becoming difficult to collect. This significantly increases the quantity, variety, and efficiency of arthropod collection, shortens the time required to collect a large number of diverse arthropods within a limited timeframe, and increases the opportunity to collect arthropods of all types and developmental stages. Furthermore, the components and the assembled device are lightweight, convenient to disassemble and carry, low-cost, and easy to operate. It collects a wide variety of arthropods quickly and efficiently, making it suitable for various farmland arthropod collection experiments and arthropod diversity surveys. This survey device effectively addresses a number of issues encountered in farmland (or aquatic) arthropod diversity surveys, including difficulty in timely classification, the mixing of large and small arthropods, and the risk of damaging soft-bodied arthropods. Preliminary sampling is quick and simple, significantly improving the efficiency of early arthropod collection and surveys. Furthermore, the non-contact survey avoids potential harm to arthropods and collectors.

Claims

1. An efficient collection device for surveying arthropod diversity in farmland, characterized in that: The acquisition device includes: Trematode cavity (1): the trematode cavity (1) is composed of three hollow cylindrical suction pipes connected in sequence, namely a head suction pipe (101), a middle suction pipe (102) and a terminal suction pipe (103); Insect receiving tube (2): used for receiving insects entering from the insect trematode cavity (1), and correspondingly plugged and arranged on the lower side of the suction tube; A fan is installed in a fan cover (3), wherein the fan cover (3) is arranged at one end of the terminal air suction pipe (103) away from the middle air suction pipe (102); Handle (4): mounted on the upper surface of the terminal suction pipe (103), the handle (4) is mounted with a fan start switch (401), a wind speed adjustment button (402) and a lithium battery (403), and the lithium battery (403) is used to power the fan.

2. The efficient collection device for surveying arthropod diversity in farmland according to claim 1, characterized in that: The opening of the head-end air suction pipe (101) is arranged in an oblique manner, and the air inlet end of the middle air suction pipe (102) is provided with a first isolation mesh screen with a mesh size of 1.5 cm.

3. The efficient collection device for surveying arthropod diversity in farmland according to claim 1, characterized in that: The air inlet end of the terminal air suction pipe (103) is provided with a second isolation mesh screen with a mesh aperture of 5.0 mm, and the air outlet end of the terminal air suction pipe (103) is provided with a third isolation mesh screen with a mesh aperture of 0.125 mm.

4. The efficient collection device for surveying arthropod diversity in farmland according to claim 1, characterized in that: The front end of the wall of the middle air suction pipe (102) and the front end of the wall of the end air suction pipe (103) are both provided with elastic buckles (5), and the rear end of the head end air suction pipe (101) and the rear end of the middle air suction pipe (102) are both provided with plug holes that cooperate with the elastic buckles (5).

5. The efficient collection device for surveying arthropod diversity in farmland according to claim 1, characterized in that: The insect body storage tube (2) comprises a tube body (201) and a cover body (203) equipped with a support rod (202). The top end of the tube body (201) is detachably plugged into the bottom of the corresponding suction tube and is located at the front end of the corresponding isolation screen.

6. The efficient collection device for surveying arthropod diversity in farmland according to claim 5, characterized in that The cover (203) is connected to the lower end of the insect body storage tube (2) via a thread, and an isolation mesh plate (204) is fixed to the top of the support rod (202), and a plurality of small holes (205) are evenly distributed on the isolation mesh plate (204).

7. The efficient collection device for surveying the diversity of arthropods in farmland according to claim 6, characterized in that The outer edge of the isolation mesh plate (204) contacts the inner wall of the insect body storage tube (2), and a cotton ball soaked in fumigant is placed in the cover (203).

8. The efficient collection device for surveying arthropod diversity in farmland according to claim 1, characterized in that The collecting device further comprises a support frame (6), wherein the support frame (6) comprises a triangular support plate (601), a semicircular arc-shaped support bracket (602) that matches the outer wall of the terminal suction pipe (103), and a support column (603) connecting the triangular support plate (601) and the support bracket (602).

Images