Factors that determine the connectedness with nature in rural and urban contexts.

Connectedness with nature is considered a key element for the future of conservation. There are both internal and external factors that determine the levels of connectedness with nature. Among these factors are gender, age, knowledge about the environment and place of residence. In the latter case, there may be differences in how urban and rural dwellers perceive nature, based on their experiences and contact with it. The main objective of this research is to evaluate and establish the factors that influence and determine the levels of connection with nature, examining how these factors relate and interact with each other, taking the urban and rural context as starting point. The ABC-CNS scale, which addresses the affective, behavioural and cognitive aspects of the connection with nature, was applied via online questionnaire to a sample of university students from two countries, Spain (496 students) and Ecuador (872 students), who were also clustered according to career, age, gender, and place of residence. The results obtained through four General Linear Mixed Models (ABC-CNS and its dimensions as response variables) and LSD test, demonstrated that the ABC-CNS scale presented significant differences for all the variables analyzed (place of residence, gender, age, and career), also demonstrating which levels influence and interact in higher ABC-CNS values. Finally, the study concludes that the analyzed factors contribute to the development of the connection with nature. In the case of place of residence, attention should be given to the specific settings of the environments under study.

Use of lichens as bioindicators of contamination by agrochemicals and metals.

The presence or absence of lichens serves as an indicator of the condition of an ecosystem and the degree to which it is contaminated by various agents, such as agrochemicals and metals. Evaluating the use of lichens as bioindicators of agrochemical contamination could provide a more comprehensive perspective of current contamination levels. Monitoring was conducted over a 4-month period in two study areas: one was a well-conserved area contaminated by metals, and the other was an area surrounded by agricultural crops contaminated by agrochemicals. Data on the presence and abundance of lichens in each study area were recorded at 10 monitoring points, a procedure that was repeated 16 times (every 15 days), and concentrations of heavy metals and "organophosphate" agrochemicals in the lichens collected were measured by means of Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-OES) and Gas Chromatography (GC), respectively. Generalized linear mixed models were used to assess abundance and richness, while general linear mixed models were used to attain Shannon diversity and Simpson dominance indices. Moreover, a multivariate analysis was performed in order to compare the lichen communities in both areas. The results indicated differences between the area contaminated by metals and that contaminated by agrochemicals in terms of abundance and Simpson's dominance index, while no differences were found in the case of the richness and diversity models. The PERMANOVA analysis additionally showed differences between the lichen communities in the two areas. The results also demonstrated that Canoparmelia caroliniana bioaccumulated metals in both areas. The levels of barium, cadmium, and sodium were higher in the area contaminated by metals, while concentrations of chromium and copper were higher in the area contaminated by agrochemicals. Finally, the concentrations of agrochemicals were higher in the area contaminated by agrochemicals and included toxic substances such as Methylparathion and Parathion, which are prohibited in Ecuador. In conclusion, this research underscores the importance of lichens as precise indicators of environmental health and contamination by agrochemicals and metals.

Natural and anthropogenic-induced stressors affecting the composition of fish communities on the rocky reefs of Ecuador.

Natural and human-induced stressors have threatened the sustainability of the fish communities of coral-rocky reefs worldwide in the last decades. The composition of the fish communities on the reefs of Ecuador and the factors affecting spatiotemporal changes are unknown. We studied the influence of the descriptors of structural complexity, the current status of coral and human-induced variables over fish communities. A video transect method was used to assess fish communities in three zones (slope, crest, and bottom) of two reefs during two seasons (rainy and dry). The structure of fish communities was highly influenced by the zones and season; rugosity and live coral affected the fish composition on the crest and slope zones. The fractured coral and derelict fishing gear on coral produced an adverse effect on fish composition over the crest. A multifactorial process causing loss of structural complexity and affecting fish composition was identified, however, periodical assessment is required for a greater understanding of this process.