Arlidge William N S, Firth Josh A, Alfaro-Shigueto Joanna, Ibanez-Erquiaga Bruno, Mangel Jeffrey C, Squires Dale, Milner-Gulland E J
Interdisciplinary Centre for Conservation Science, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.
Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany.
R Soc Open Sci. 2021 Nov 24;8(11):211240. doi: 10.1098/rsos.211240. eCollection 2021 Nov.
The effectiveness of behavioural interventions in conservation often depends on local resource users' underlying social interactions. However, it remains unclear to what extent differences in related topics of information shared between resource users can alter network structure-holding implications for information flows and the spread of behaviours. Here, we explore the differences in nine subtopics of fishing information related to the planned expansion of a community co-management scheme aiming to reduce sea turtle bycatch at a small-scale fishery in Peru. We show that the general network structure detailing information sharing about sea turtle bycatch is dissimilar from other fishing information sharing. Specifically, no significant degree assortativity (degree homophily) was identified, and the variance in node eccentricity was lower than expected under our null models. We also demonstrate that patterns of information sharing between fishers related to sea turtle bycatch are more similar to information sharing about fishing regulations, and vessel technology and maintenance, than to information sharing about weather, fishing activity, finances and crew management. Our findings highlight the importance of assessing information-sharing networks in contexts directly relevant to the desired intervention and demonstrate the identification of social contexts that might be more or less appropriate for information sharing related to planned conservation actions.
行为干预在保护工作中的有效性通常取决于当地资源使用者潜在的社会互动。然而，资源使用者之间共享信息的相关主题差异在多大程度上会改变网络结构——这对信息流和行为传播具有影响——仍不清楚。在此，我们探讨了与一项社区共同管理计划的规划扩展相关的九个捕鱼信息子主题的差异，该计划旨在减少秘鲁一个小型渔业中海龟误捕情况。我们表明，详细说明海龟误捕信息共享情况的总体网络结构与其他捕鱼信息共享情况不同。具体而言，未发现显著的度相关性（度同质性），并且节点离心率的方差低于我们的零模型下的预期值。我们还证明，渔民之间与海龟误捕相关的信息共享模式，与关于捕鱼法规、船只技术和维护的信息共享模式相比，比与关于天气、捕鱼活动、财务和船员管理的信息共享模式更为相似。我们的研究结果凸显了在与预期干预直接相关的背景下评估信息共享网络的重要性，并证明了识别对于与计划中的保护行动相关的信息共享可能或多或少合适的社会背景。
