Insects and other invertebrates as candidates for the Bern Convention
Publication
1986
Authors
Collins, N. Mark, Wells, Sue
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II. Solution Application Approach
1. Standardized monitoring and technology upgrading. Standardize data collection norms: monitor the population 8 days a month, 12 hours a day, recording population size, behavioral rhythms, food habits, etc. to ensure data validity.
Upgrade equipment configuration: Equipped with GPS, infrared cameras, etc. to fill the gap of image records. 5 infrared cameras were installed in the Tianchi population area, successfully obtaining fecal samples and activity traces.
2. Expert team and long-term monitoring system. An inter-agency expert team was formed to solve the problem of insufficient expert guidance in the past.
3. Food resources and habitat management. Establishment of a food resource database: Record the 26 species of plants that the Longma Mountain population feeds on and the seasonal changes in food habits to provide a basis for habitat restoration. Habitat corridor restoration: Prioritize the protection of key vegetation types such as fir forests and Yunnan hemlock forests for the five habitat patches where Longma Mountain populations are active.
4. Man-made disturbance control and community participation. Quantify the types of disturbance: focus on monitoring high-frequency disturbance such as mushroom picking in summer, mark the location of disturbance, and set targeted no-entry periods. Community education: Promote residents’ awareness of conservation and reduce the impact of activities on the monkey population.
Core Challenges
1. Population growth bottleneck: the annual growth rate of Longmashan population has dropped from rapid growth before 2011 to a stable state after 2012, confirming that the habitat is close to the environmental capacity and the habitat quality needs to be optimized.
2. Fragmentation of monitoring data: after standardization, the rate of invalid data has dropped from 53% to a manageable range, and the Tianchi population has moved from “data gaps” to “confirmation of existence”.
3. Threat of man-made disturbance: the intensity of disturbance reached 4.23 in summer, and the seasonal control reduced the stress reaction of the monkey population.
4. Risk of survival of small populations: The survival of the Tianchi population was confirmed for the first time through the deployment of infrared cameras and feces analysis, which provided a basis for the construction of the corridor.
Positive Results
1. Stable population growth: the Longmarsaurus population increased from 127 in 2011 to 190 in 2024, a 49% increase, with a stable population structure, close to the environmental capacity but in dynamic equilibrium.
2. Behavioral and ecological adaptation research: clarify the daily activity rhythms and seasonal dietary changes of Yunnan snub-nosed monkeys, and provide scientific support for food resource management.
3. Synergistic effect between technology and community: standardized monitoring has improved the positioning accuracy of human interference, and community participation has reduced the frequency of interference in summer by 15% year-on-year in 2024, providing a replicable model for similar protected areas.
4. Breakthrough in the protection of small populations: The survival of the Tianchi population has been confirmed through fecal and trace monitoring, and as the southernmost population of the Yunnan snub-nosed monkey, it lays the foundation for the study of species distribution boundaries and habitat corridor planning.
Through the integrated strategy of “scientific monitoring-habitat restoration-community governance”, the program effectively mitigated the threats faced by the Yunnan snub-nosed monkeys, such as stagnant population growth, habitat fragmentation and human interference, and provided a closed-loop management paradigm of “monitoring-assessment-intervention” for the protection of the endangered species. This provides a “monitoring-assessment-intervention” paradigm for endangered species conservation.
