An artificial nest for promoting the breeding of cormorants
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING FORESTRY UNIV
- Filing Date
- 2025-07-15
- Publication Date
- 2026-08-07
AI Technical Summary
目前,人工繁殖的鸬鹚巢穴主要设置在水中或者岸边为主,由于水面因雨水会出现上涨和下落的问题,对设置在水中或者岸边的人工巢穴影响较大,因此,本申请提出了一种促进鸬鹚繁殖的人工巢穴
本实用新型通过天然环境模拟、拟生态造型设计,通过设置随水位升降的浮体基座,有效降低了鸬鹚幼鸟掉落水里,提高了幼鸟的成活率。通过模拟生态造型设计、动态漂浮及场景适配优化,显著提高鸬鹚筑巢成功率和幼鸟成活率性。
Smart Images

Figure CN224597294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of artificial nest technology, specifically to an artificial nest that promotes cormorant breeding. Background Technology
[0002] Cormorants, as gregarious waterfowl, exhibit a significant positive correlation between their reproductive success rate and nest structure characteristics. The main causes of chick mortality include predation by other animals and falls from nests in trees or on cliffs. On June 30, 2023, cormorants were included in the newly revised "List of Terrestrial Wild Animals of Important Ecological, Scientific, and Social Value" published on the website of the National Forestry and Grassland Administration. Therefore, continued protection and research of cormorants to ensure the long-term healthy development of these species has significant ecological, scientific, and economic value.
[0003] Cormorants primarily inhabit rivers, lakes, ponds, reservoirs, estuaries, and marshes, and prefer to perch on rocks or branches to dry their wings. Currently, artificially bred cormorant nests are mainly located in the water or on the shore. However, the rise and fall of water levels due to rain significantly impacts these artificial nests. Therefore, this application proposes an artificial nest design to promote cormorant breeding. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an artificial nest that promotes cormorant breeding, thereby solving the problems described above.
[0005] This invention provides an artificial nest for promoting cormorant reproduction, comprising: A fixed column, with one end fixed underwater; Hollow tube, slidably fitted onto a fixed support column; The floating body base is fixed to the lower end of the hollow tube; The sunshade is fixed to the upper end of the hollow tube; The nest unit is mounted on the floating base via support columns and is located below the sunshade.
[0006] Preferably, the floating body base includes multiple floats and a sleeve, with the sleeve fitted onto a plate composed of the multiple floats. The floats on both sides of the plate have through holes, and the sleeve has a round hole at the through hole; a hollow tube passes through both the through hole and the round hole.
[0007] Preferably, it also includes a concrete block, to which the end of the fixing column is connected.
[0008] Preferably, it also includes a fastener, which is axially sleeved on the outside of the hollow tube and horizontally sleeved on the end of the sleeve. The fastener is connected to the hollow tube by a connecting bolt.
[0009] Preferably, a rectangular frame is provided on the hollow tube, and the rectangular frame is located on the float base. The float is a hollow structure, and the float is made of bamboo or a hollow floating tube.
[0010] Preferably, the nest unit is formed by alternating stacking of branches with a diameter of 5-10 mm and a length of 40-50 cm. The framework of the shading roof is distributed at a 30-45° angle.
[0011] Compared with existing technologies, it has the following beneficial effects: This invention, through natural environment simulation and ecological design, and by setting up a floating base that rises and falls with the water level, effectively reduces the risk of cormorant chicks falling into the water and improves their survival rate. Through ecological design, dynamic floating, and scene adaptation optimization, it significantly improves the success rate of cormorant nest building and the survival rate of chicks. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of an artificial nest for promoting cormorant breeding according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of an artificial nest for promoting cormorant breeding according to this utility model. Figure 2 ; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of an artificial nest for promoting cormorant breeding according to this utility model. Figure 3 ; Figure 5 for Figure 4 Enlarged diagram of point B in the middle.
[0014] In the diagram, 1 - fixed column; 2-Hollow tube; 3-Floating body base; 31-Floating rod; 32-Sawing sleeve; 4-Sunshade roof; 5-Nest unit; 6- Concrete block; 7-Factors; 8-Rectangular frame; 9-Sealing plug. Detailed Implementation
[0015] To better understand the structure, functional features, and advantages of this utility model, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings: Example: like Figures 1 to 5 As shown, this utility model provides an artificial nest for promoting cormorant breeding, comprising: Fixed column 1, one end of which is fixed underwater; Hollow tube 2 is slidably fitted onto the fixed support column; The floating body base 3 is fixed to the lower end of the hollow tube 2; The sunshade 4 is fixed to the upper end of the hollow tube 2; Nest unit 5 is mounted on floating base 3 via support columns and located below sunshade top 4.
[0016] The floating base 3 is 400-600 cm long and 120-180 cm wide, and the sunshade 4 occupies 1 / 3 of the area of the floating base 3.
[0017] See Figure 1 and Figure 2 The floating base 3 includes multiple floats 31 and a sling 32, with the sling 32 fitted onto a plate composed of multiple floats 31.
[0018] See Figure 3 The floats 31 located on both sides of the plate are provided with through holes, and the sleeves 32 located at the through holes are provided with round holes. The hollow tube 2 passes through the through holes and the round holes to facilitate the fixing of the two sleeves 32 in the middle of the plate.
[0019] See Figure 1 This utility model also includes a concrete block 6, with the end of the fixing column 1 connected to the concrete block 6 to fix the fixing column 1 underwater. Further, the end of the fixing column 1 is provided with an external thread, and the concrete block 6 is provided with a threaded tube. The fixing column 1 is threadedly connected to the threaded tube via the external thread to facilitate disassembly of the fixing column 1. This threaded connection structure uses rust-proof material or is treated with rust prevention.
[0020] See Figure 3 It also includes a fastener 7, which is axially sleeved on the outside of the hollow tube 2 and horizontally sleeved on the end of the sleeve 32. The fastener 7 is connected to the hollow tube 2 by connecting bolts.
[0021] See Figure 1 A rectangular frame 8 is installed on the hollow tube 2, and the rectangular frame 8 is located on the float base 3. The float 31 is a hollow structure, made of bamboo or hollow floating tube to prevent corrosion. When the float 31 is a hollow floating tube, sealing plugs 9 are installed at both ends.
[0022] See Figure 1Nest unit 5 is formed by alternating stacking of branches with a diameter of 5-10 mm and a length of 40-50 cm. Nest units 5 are distributed in a matrix, with each nest unit 5 measuring 50 × 50 cm and the supporting posts being 15-30 cm high. The branches have a water content of 15%-25% and each branch has a certain degree of flexibility.
[0023] Furthermore, a 10-15 cm wide isolation zone is set between adjacent nest units 5, filled with reed stalks or cork chips as a buffer layer.
[0024] See Figure 1 The framework of the shading roof 4 is distributed at a 30-45° angle and covers the nest unit 5, with its edge extending 5-10 cm beyond the boundary of the nest unit 5, and its height ranging from 150 cm to 200 cm. The hollow tube 2 has an inclination angle of 10°-15°.
[0025] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.
Claims
1. An artificial nest for promoting cormorant reproduction, characterized in that, include: A fixed column (1) is fixed at one end underwater; Hollow tube (2) is slidably sleeved on the fixed column (1); The floating body base (3) is fixed to the lower end of the hollow tube (2); The sunshade top (4) is fixed to the upper end of the hollow tube (2); The nest unit (5) is mounted on the floating base (3) by a support column and is located below the sunshade (4); A rectangular frame (8) is provided on the hollow tube (2), and the rectangular frame (8) is located on the floating body base (3).
2. The artificial nest for promoting cormorant reproduction according to claim 1, characterized in that, The floating base (3) includes multiple floats (31) and a sleeve (32), the sleeve (32) being fitted onto a plate composed of multiple floats (31).
3. The artificial nest for promoting cormorant breeding according to claim 1, characterized in that, It also includes a concrete block (6), the end of which is connected to the concrete block (6).
4. The artificial nest for promoting cormorant reproduction according to claim 2, characterized in that, The floats (31) located on both sides of the plate are provided with through holes, the sleeve (32) is provided with a round hole at the through hole, and the hollow tube (2) passes through the through hole and the round hole.
5. An artificial nest for promoting cormorant reproduction according to claim 4, characterized in that, It also includes a fastener (7), which is axially sleeved on the outside of the hollow tube (2) and horizontally sleeved on the end of the sleeve (32). The fastener (7) is connected to the hollow tube (2) by a connecting bolt.
6. The artificial nest for promoting cormorant reproduction according to claim 2, characterized in that, The float (31) is a hollow structure, and the float (31) is made of bamboo or a hollow floating tube.
7. The artificial nest for promoting cormorant reproduction according to claim 1, characterized in that, The nest unit (5) is formed by alternating stacking of branches with a diameter of 5-10 mm and a length of 40-50 cm.
8. The artificial nest for promoting cormorant reproduction according to claim 1, characterized in that, The frame of the sunshade roof (4) is inclined at 30-45°.