Summary: Temperate forests managed to maximize sustainable yield of wood products can reduce the availability of dead wood on the forest floor and in adjacent streams, which in turn can impair ecological processes such as retention and transformation of organic matter. Lack of tools to link ecological processes with their effects on human well‐being leads forest managers to ignore the cost on other services from terrestrial and aquatic ecosystems. We examine how adding dead wood to restore stream channel complexity affects the provision and value of selected ecosystem services, mainly related to the retention and transformation of matter and cycling of nutrients, as well as to the effects on aquatic biota. Specifically, we evaluated the cost‐effectiveness of stream restoration through a comparative analysis of four reach‐scale projects in streams flowing through temperate forest and into a drinking water reservoir and two scenarios of active and passive restoration at the basin scale. Results indicate that the lack of dead wood in streams has an important economic cost because of the effects on fish provisioning, opportunities for recreation and tourism, water purification and erosion control. Active reach‐scale restoration resulted in a 10‐ to 100‐fold increase in the monetary benefits provided by streams, accounting as much as 1·8 € per metre of restored river length each year. Results of the reach‐scale cost–benefit analyses estimated that the time required to recover the active restoration investment ranged from 15 to 20 years in low‐ to middle‐order streams. Synthesis and applications. Our study showed that restoration of natural wood loading in streams greatly increases the ecosystem services they provide. The benefits in terms of the analysed services surpass the costs of active restoration over realistic timeframes, whereas this was not the case for passive restoration. Inclusion of other ecosystem services such as conservation of biodiversity might make restoration more economically profitable. Overall, our study provides a decision framework for managing temperate riparian forests in the context of ecological services.

Although citizenship’s literacy in biodiversity is a promising way of confronting its loss, the unawareness about this topic is generalised particularly regarding plants. The latter phenomenon, named Plant Blindness (PB), not only refers to the inability to notice and identify the surrounding plants, but also to the lack of knowledge about the basics of plant biology and to the subsequent ignorance of the value of plants. Hence, the aim of this research has been to assess whether secondary students experience PB and to analyse if this phenomenon can be interrelated with their conceptualisation and attitudes towards biodiversity. For this purpose, 63 secondary students took a mixed closed- and open-ended questionnaire on different aspects of biodiversity and plant biology. The results revealed that, despite conceptualisation of biodiversity and plant literacy increased during secondary education, most students presented PB ‘symptoms’. Moreover, some of the dimensions studied were interrelated, such as comprehension of biodiversity and different aspects of plant knowledge. Therefore, these results indicate that PB has multiple branches which are not only related to plant topics sensu stricto, but also include biodiversity; which can provide novel insights into the appropriate approach to the plant blindness issue from an educational perspective.

Species literacy is an important aspect of biodiversity education. This study assesses the ability of secondary students (12/13 years old; n = 944) to list wild animals and plants and aims to determine whether this is linked with their interest in nature, their preferences towards animals and plants and different groups therein, the school type (public or private), per capita income and the size of the students’ hometowns. We have observed that students claim to have a very high interest in nature, but they spontaneously recall a worrisome proportion of exotic species (especially animals), as well as domesticated ones (mainly plants). Besides, they present several ‘Plant Awareness Disparity’ (PAD) symptoms. However, the smaller their hometown is, the more wild native species they list, especially animals, although most PAD symptoms prevail in their answers. Our findings suggest that citizens living in more rural environments may have a higher contact with nature, resulting on a higher spontaneous listing of wild native species. Nevertheless, special efforts must be conducted to counteract PAD as well as ‘Native Species Awareness Disparity’ wherever they live.