Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for judging key species of food web

A food web, a key technology, applied in the field of ecology to avoid the extinction of key species, improve accuracy and timeliness, and maintain stability

Active Publication Date: 2019-08-16
INST OF DISASTER PREVENTION
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method strongly relies on experiments, which are not only limited by the experimental conditions in nature, but also by the experimental time, the type of target species to be removed, etc. Not all food webs can carry out removal experiments in reality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for judging key species of food web
  • Method for judging key species of food web
  • Method for judging key species of food web

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1: Determination of key species in aquatic food webs in river ecosystems

[0064] This embodiment takes the aquatic food web of the river ecosystem as an example to further illustrate the present invention.

[0065]1. Construct the species interaction matrix in the food web

[0066] In this example, the aquatic food web includes 48 species, and the species interaction matrix is ​​constructed according to whether there is a direct interaction between the species. The elements in the interaction matrix are 0 or 1. When the matrix element is 1, it means that there is a direct interaction between species i and species j. When the matrix element is 0, it means that there is no direct interaction between species i and species j. effect.

[0067] 2. Calculate the centrality characteristics of species

[0068] Species are used as nodes. When the matrix element is 1, there is an edge between the corresponding nodes; when the matrix element is 0, there is no edge betwe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for judging key species of a food web, and belongs to the field of ecology. According to the technical scheme, the method comprises steps of constructing a species interaction matrix in the food web; calculating two or more centrality characteristics of the species; utilizing centrality characteristics to carry out clustering analysis on the species without the need of specifying a pre-specified classification number; counting the number of species in each category; removing species in different categories, and respectively calculating the robustness of the food net after the species are removed; comparing the food web robustness change degrees; and selecting the species with the strongest change degree as key species. The method is helpful for people to timely and accurately judge which species in the food net belong to key species, the accuracy and timeliness of species protection are improved, the key species are preferentially protected in numerousspecies, and key species extinction caused by improper protection and subsequent secondary species extinction and food web collapse possibly caused by improper protection are avoided.

Description

technical field [0001] The invention relates to the field of ecology and is used to quantitatively determine key species in food webs. Background technique [0002] Species interact to form a food web. Species that play an important role in the top trophic level or low trophic level in the food web are called keystone species. The removal of keystone species can lead to drastic changes or even collapse of the food web. The protection of keystone species is an important aspect of maintaining the stability of food webs and even ecosystems, because the loss of keystone species not only means the extinction of individual species but also causes secondary extinction of food webs, that is, species directly or indirectly related to keystone species will also become extinct. [0003] Keystone species are important targets for priority protection when carrying out species protection work. How to determine which species are keystone species in the food web is a basic problem that n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/2321G06F18/24
Inventor 唐毅王凤珍
Owner INST OF DISASTER PREVENTION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com