Sampling networks of ecological interactions
نویسنده
چکیده
Sampling ecological interactions presents similar challenges, problems, potential biases, and constraints as sampling individuals and species in biodiversity inventories. Robust estimates of the actual number of interactions (links) among free-living species within diversified ecological networks require adequate sampling effort that needs to be explicitly gauged, yet we still lack a sampling theory explicitly focusing on ecological interactions.
منابع مشابه
Revealing biases in the sampling of ecological interaction networks
1. The structure of ecological interactions is commonly understood through analyses of interaction networks. However, these analyses may be sensitive to sampling biases in both the interactors (the nodes of the network) and interactions (the links between nodes), because the detectability of species and their interactions is highly heterogeneous. These issues may affect the accuracy of empirica...
متن کاملInfluences of sampling effort on detected patterns and structuring processes of a Neotropical plant-hummingbird network.
Virtually all empirical ecological interaction networks to some extent suffer from undersampling. However, how limitations imposed by sampling incompleteness affect our understanding of ecological networks is still poorly explored, which may hinder further advances in the field. Here, we use a plant-hummingbird network with unprecedented sampling effort (2716 h of focal observations) from the A...
متن کاملAn Evaluation of the Relationship between Virtual Social Network's Consumption and the Youth's Lifestyle
The aim of this study is a sociological explanation on the relationship between virtual social network's consumption and the youth's lifestyle and its factors such as leisure time, body management and the amount of consumption and the type of consumption was based on theoretical frameworks of Bourdieu, Giddens, Simmel and Engellhart. The research method is survey and a questionnaire is used in ...
متن کاملIndividual-Based Ant-Plant Networks: Diurnal-Nocturnal Structure and Species-Area Relationship
Despite the importance and increasing knowledge of ecological networks, sampling effort and intrapopulation variation has been widely overlooked. Using continuous daily sampling of ants visiting three plant species in the Brazilian Neotropical savanna, we evaluated for the first time the topological structure over 24 h and species-area relationships (based on the number of extrafloral nectaries...
متن کاملSimulated tri-trophic networks reveal complex relationships between species diversity and interaction diversity
Most of earth's biodiversity is comprised of interactions among species, yet it is unclear what causes variation in interaction diversity across space and time. We define interaction diversity as the richness and relative abundance of interactions linking species together at scales from localized, measurable webs to entire ecosystems. Large-scale patterns suggest that two basic components of in...
متن کامل