Experimental device for observing insect spawning selection preference

Abstract

The experimental device comprises an upper containing cavity, the upper containing cavity is placed on a lower containing cavity, openings of the upper containing cavity and the lower containing cavity are oppositely arranged to form a relatively-sealed space, the upper containing cavity and the lower containing cavity are separated through an isolation gauze element, and the isolation gauze element is arranged in the upper containing cavity and the lower containing cavity. The lower containing cavity at the bottom of the isolation gauze element is divided into a plurality of independent areas through partition plates, the bottom of the isolation gauze element is supported on the top faces of the partition plates, and air holes are densely distributed in the upper containing cavity or the lower containing cavity. According to the utility model, an insect spawning selection preference experiment can be simply and conveniently completed, and errors caused by instruments and operation are effectively reduced, so that the credibility and preciseness of experimental data are improved. Materials used by the whole experimental device are all common materials, so that the manufacturing cost is low. In addition, a plurality of partition plates can be arranged in the lower containing cavity, so that selective experiments of two or more hosts can be carried out at the same time. By means of the design, experimental operation steps are simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to an insect experimental device, especially an experimental device for observing insect oviposition selection preference. BACKGROUND

[0002] Observing the oviposition behavior of natural enemy insects can determine the fitness of prey to natural enemies, and comparing the relationship between different prey-natural enemies can provide information for elucidating the coevolution relationship between prey and natural enemies. Oviposition selection preference research can provide information for elucidating the coevolution relationship between predators and prey, and can also determine the fitness between prey and predators, so the oviposition selection preference experiment is an indispensable part of the direction, but there is still no suitable experimental device for insect selection preference experiment at present, or the existing experimental device does not specifically focus on the mutual influence between natural enemies and prey. In the same habitat, it is difficult to accurately observe the selection preference of natural enemies. Therefore, it is necessary to design a more systematic and specific experimental device. SUMMARY

[0003] The utility model discloses a kind of experimental devices for observing insect oviposition selection preference. The device can simply complete insect oviposition selection preference experiment, and effectively reduce the error caused by instrument and operation, so as to improve the credibility and rigor of experimental data.

[0004] The technical scheme of the utility model discloses a kind of experimental devices for observing insect oviposition selection preference, including upper containing cavity, upper containing cavity is placed in lower containing cavity, both are open and are set up, form a relatively sealed space, upper containing cavity and lower containing cavity are separated by isolation gauze, the lower containing cavity of the bottom of isolation gauze is separated into multiple independent areas by partition, the bottom of isolation gauze is supported on the top surface of partition, upper containing cavity or lower containing cavity is densely covered with air hole.

[0005] In the foregoing experimental device for observing insect oviposition selection preference, the lower part of the lower containing cavity is provided with a support net, and the lower area of the support net forms a water storage area.

[0006] In the foregoing experimental device for observing insect oviposition selection preference, a support column is vertically arranged in the middle of the lower containing cavity, a plurality of clamping grooves are arranged on the support column, and the partition is clamped into the clamping grooves.

[0007] In the foregoing experimental device for observing insect oviposition selection preference, an annular groove is arranged on the top surface of the lower containing cavity, and an annular protrusion corresponding to the position of the annular groove is arranged on the bottom surface of the upper containing cavity.

[0008] The upper accommodating cavity is provided with a recess, and the bottom of the recess is provided with a cotton ball socket.

[0009] The upper accommodating cavity is provided with an outwardly extending delivery pipe, and the end of the delivery pipe is provided with a cover.

[0010] The lower accommodating cavity is a circular truncated cone structure with a wide upper part and a narrow lower part, and the upper accommodating cavity is a structure opposite to the lower accommodating cavity.

[0011] The upper accommodating cavity and the lower accommodating cavity are made of transparent materials.

[0012] Compared with the prior art, the device of the utility model is designed based on the principle that different larvae or plants emit different odors, insects are attracted by the odors of the larvae or plants that they like, and the insects selectively crawl to the larvae or plants that they like, the upper accommodating cavity is used for feeding insects, and the multiple independent areas of the lower accommodating cavity are used for loading different larvae or plants, and the selection preference of insects can be understood by observing the activity behavior of the insects.

[0013] The utility model can simply and conveniently complete the insect oviposition selection preference experiment, effectively reduces errors caused by instruments and operations, and improves the reliability and rigor of experimental data.

[0014] The device effectively solves the problem that different hosts and plants affect the predation of natural enemies during the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a bottom structure schematic view of the upper accommodating cavity;

[0017] Figure 3A schematic view of a top structure of the lower accommodating cavity;

[0018] Figure 4 A schematic view of a structure of the partition plate;

[0019] Figure 5 A schematic view of a top structure of the support column.

[0020] Reference signs: 1 - upper accommodating cavity, 2 - lower accommodating cavity, 3 - isolation gauze, 4 - partition plate, 5 - air hole, 6 - support net, 7 - water storage area, 8 - support column, 9 - clamping groove, 10 - annular groove, 11 - annular protrusion, 12 - pit, 13 - tampon clamping port, 14 - dropping pipe, 15 - cover. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and examples, but it is not as the basis for limiting the utility model.

[0022] The utility model discloses an experimental device for observing insect oviposition selection preference, comprising the upper accommodating cavity 1 of lower end opening, the upper accommodating cavity 1 is placed on the lower accommodating cavity 2 of upper end opening, and the opening of the two is set up oppositely, forms a relatively sealed space, the upper accommodating cavity 1 and the lower accommodating cavity 2 are separated by the isolation gauze 3, the lower accommodating cavity 2 of the bottom of the isolation gauze 3 is divided into a plurality of independent areas by the partition plate 4, the bottom of the isolation gauze 3 is supported on the top surface of the partition plate 4, and the upper accommodating cavity 1 or the lower accommodating cavity 2 is densely covered with air hole 5.

[0023] During the experiment, first, the partition plate 4 is placed in the lower accommodating cavity 2, the bottom of the partition plate 4 should be in contact with the inner bottom surface of the upper accommodating cavity 2, so as to divide the lower accommodating cavity 2 into multiple independent areas, one kind of larvae or plants is placed in each area, then the isolation gauze 3 is placed on the partition plate 4, the top of the partition plate 4 should be in contact with the bottom surface of the isolation gauze 3, so as to divide the lower accommodating cavity 2 into completely independent areas through the partition plate 4, so as to avoid that the larvae in different areas climb to other areas through the gap between the areas, thereby affecting the experimental results, then the insects to be observed are loaded in the upper accommodating cavity 1, and the upper accommodating cavity 1 is placed upside down on the lower accommodating cavity 2, so as to avoid the gap between the two. Then the activity behavior of the insects in the upper accommodating cavity 1 is observed. Since the lower accommodating cavity 2 is divided into completely independent areas by the partition plate 4, the smell generated by the larvae or plants in the area can only float upwards into the upper accommodating cavity 1, and cannot horizontally spread to the adjacent other areas, when the insects smell the gas they like, they will gather on the isolation gauze 3 above the area to lay eggs, thereby the selection preference of the insects for different larvae or plants can be judged. The isolation gauze 3 separates the areas separated by the partition plate 4, so as to avoid that the larvae in adjacent areas climb from one area to another area; the isolation gauze 3 separates the upper accommodating cavity 1 and the lower accommodating cavity 2, so as to avoid that the insects enter the lower accommodating cavity 2 to prey on the larvae and plants, so that a large number of insects will concentrate on the isolation gauze 3 to move, which is convenient for observing the selection preference. At the same time, the isolation gauze 3 also provides a place for the insects to rest and mate.

[0024] The larvae and insects inside the device are provided with oxygen required for survival through the air holes 5 in the whole device.

[0025] The lower part of the lower accommodating cavity 2 is provided with a support net 6, the lower area of the support net 6 forms a water storage area 7, the bottom of the partition plate 4 is in contact with the surface of the support net 6, when it is needed to place plants in the isolated areas, the plant leaves need to be temporarily preserved, the support net 6 can be placed in the lower accommodating cavity 2 and keep a certain distance from the bottom to form the water storage area 7, water or other preservation substances can be added in the water storage area 7, if preservation is not needed, the support net 6 can be directly taken out.

[0026] The middle part of the lower accommodating cavity 2 is vertically provided with a support column 8, the bottom of the support column 8 is fixed on the inner bottom plate of the lower accommodating cavity 2, a plurality of clamping grooves 9 are arranged on the support column 8, the partition plate 4 is clamped into the clamping grooves 9, so as to fix the partition plate 4, when the partition plate 4 is completely clamped into the clamping grooves 9, the bottom is better supported on the support net 6, and the top just supports the isolation gauze 3, so as to divide the lower accommodating cavity 2 into multiple completely independent areas, so as to avoid the gap between adjacent areas.

[0027] The top surface of the lower accommodating cavity 2 is provided with an annular groove 10, and the bottom surface of the upper accommodating cavity 1 is provided with an annular protrusion 11 corresponding to the position of the annular groove 10. By clamping the annular protrusion 11 into the annular groove 10, the upper accommodating cavity 1 and the lower accommodating cavity 2 can be fixedly connected, avoiding the occurrence of gaps between the two, so that insects can escape from the gaps.

[0028] The upper accommodating cavity 1 is provided with a recess 12, and the bottom of the recess 12 is provided with a cotton ball clamping port 13 for clamping a cotton ball. The recess 12 can be used to load honey water to provide the insects in the upper accommodating cavity 1 with the required nutrients through the cotton ball.

[0029] When the device of the embodiment is used to observe insects with wings, such as aphids, a recess 12 can be arranged on the top surface of the upper accommodating cavity 1. The top surface is provided with a recess 12 to facilitate the storage of honey water, and the insects with wings can fly to the cotton ball to suck the honey water.

[0030] The upper accommodating cavity 1 is provided with an outwardly extending feeding pipe 14, and the end of the feeding pipe 14 is provided with a cover 15. This structure design is to facilitate the feeding of insects to be observed into the upper accommodating cavity 1. During use, open the cover 15, align the container containing the insects to be observed with the feeding pipe 14, pour the insects to be observed into the upper accommodating cavity 1 through the feeding pipe 14, and then close the cover 15. This structure makes it more convenient to feed insects, and can avoid the flying out of insects with wings during feeding.

[0031] The lower accommodating cavity 2 has a circular truncated cone structure with a wide upper part and a narrow lower part. This structure allows the isolation gauze 3 and the support gauze 6 to be easily clamped and supported after being placed in the lower accommodating cavity 2, because the edges of the isolation gauze 3 and the support gauze 6 are supported upward by the inner wall of the lower accommodating cavity 2. The upper accommodating cavity 1 has a structure opposite to that of the lower accommodating cavity 2, i.e., a circular truncated cone structure with a narrow upper part and a wide lower part. However, the upper accommodating cavity 1 has an open lower end, while the lower accommodating cavity 2 has an open upper end. When the device is not in use, the upper accommodating cavity 1 can be stacked and stored together with the lower accommodating cavity 2, because the structure of the upper accommodating cavity 1 is the same as that of the lower accommodating cavity 2. The upper bottom diameter of the upper accommodating cavity 1 is 8 cm, the lower bottom diameter is 12 cm, and the height is 5 cm. The upper bottom diameter of the lower accommodating cavity 2 is 12 cm, the lower bottom diameter is 8 cm, and the height is 10 cm. The overall height of the device is 15 cm, and the maximum width is only 12 cm. The device has good disassembly and stacking properties.

[0032] The upper accommodating cavity 1 and the lower accommodating cavity 2 are made of transparent material, so that the internal conditions of the device can be observed from the outside.

Claims

1. An experimental device for observing ovipositional preferences of insects, characterized by: It includes upper accommodating cavity (1), upper accommodating cavity (1) is placed on lower accommodating cavity (2), and the opening between the two is arranged oppositely, forming a relatively sealed space, upper accommodating cavity (1) and lower accommodating cavity (2) are separated by isolation gauze (3), the lower accommodating cavity (2) at the bottom of isolation gauze (3) is separated into multiple independent areas by partition (4), and the bottom of isolation gauze (3) is supported on the top surface of partition (4), upper accommodating cavity (1) or lower accommodating cavity (2) is densely covered with air holes (5); The lower part of the lower accommodating cavity (2) is provided with a support net (6), and the lower area of the support net (6) forms a water storage area (7), the bottom of the partition (4) is in contact with the surface of the support net (6); The lower accommodating cavity (2) is vertically provided with a support column (8) in the middle, and a plurality of clamping grooves (9) are arranged on the support column (8), and the partition (4) is clamped into the clamping groove (9); The top surface of the lower accommodating cavity (2) is provided with an annular groove (10), and the bottom surface of the upper accommodating cavity (1) is provided with an annular protrusion (11) corresponding to the position of the annular groove (10); The upper accommodating cavity (1) is provided with a pit (12), and the bottom of the pit (12) is provided with a cotton ball card opening (13).

2. The experimental device for observing ovipositional preference of insects according to claim 1, wherein: The upper accommodating cavity (1) is provided with an outwardly extending delivery pipe (14), and the end of the delivery pipe (14) is provided with a cover (15).

3. The experimental apparatus for observing ovipositional preference of insects according to claim 1, wherein: The lower accommodating cavity (2) is a circular truncated cone structure which is wide at the top and narrow at the bottom; the upper accommodating cavity (1) is a structure opposite to it.

4. The experimental apparatus for observing ovipositional preference of insects according to claim 1, wherein: The upper accommodating cavity (1) and the lower accommodating cavity (2) are made of transparent material.

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