People depend on functioning ecosystems, which provide benefits that support human existence and wellbeing. The relationship between people and nature has been experienced and conceptualized in multiple ways. Recently, ecosystem services (ES) concepts have permeated science, government policies, multinational environmental agreements, and science-policy interfaces. In 2017, the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) introduced a new and closely related concept-Nature's Contributions to People (NCP). The introduction of NCP has sparked some lively discussion and confusion about the distinguishing characteristics between ES and NCP. In order to clarify their conceptual relation, we identify eleven specific claims about novel elements from the latest NCP literature and analyze how far ES research has already contributed to these corresponding conceptual claims in the existing ES literature. We find a mixed-picture, where on six specific conceptual claims (culture, social sciences and humanities, indigenous and local knowledge, negative contributions of nature, generalizing perspective, non-instrumental values and valuation) NCP does not differ greatly from past ES research, but we also find five conceptual claims (diverse worldviews, context-specific perspective, relational values, fuzzy and fluid reporting categories and groups, inclusive language and framing) where NCP provides novel conceptualizations of people and nature relations.

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Mangrove cover has declined significantly in recent years in tropical and subtropical areas around the world. Under this scenario, it is necessary to elaborate and implement tools that allow us to make estimations on their conservation status and improve their protection and support decision-making. This study developed an index using qualitative and quantitative data. The criterions used in the index were: (1) Remnant Vegetation Index, (2) Delphi Method Survey, and (3) Rapid Assessment Questionnaire. In turn, the weights of the criterions were defined using the analytical hierarchy process (AHP). Once the values of each criterion were obtained, the index was applied to 17 mangrove communities located in La Paz Bay, Mexico. Finally, according to their score, they were classified based on the IUCN Red List of Ecosystems. The results show that five communities were ranked in the category Minor Concern, eight in Little Threatened, one in Vulnerable, one in Endangered, and two were classified as Deficiency of Data. These results are slightly different from other studies in the region and validate this index as a proper method. Therefore, it could be applied to other sites, especially in areas with little information and/or scarce monetary resources.

The concept of Ecosystem Services (ES) highlights that human wellbeing depends on nature and is a 'whole system aware' view. Land-sea systems are examples of complex systems including interfaces that can be perceived as boundaries, overlooking connections of the whole system. We explored the occurrence of several features of scientific knowledge building and governance of these systems that can hinder the recognition of connectivity, challenging an ES approach. We analyzed online survey responses from academics representing 22 research institutions and 13 case studies, all from Latin America. Results showed that the generation of scientific knowledge is not integrally approached and there are deficiencies in researchers' communication with stakeholders across the land-sea interface. These drawbacks in scientific knowledge building could be one of the reasons why an ES approach is rarely applied on governance of land-sea systems. The cases showed segmented governance schemes and that conflict situations enhance the visibility of ecosystem relations. The establishment of long-lasting institutional instruments and the involvement of intermediaries connecting sectors are complementary paths to improve integrated governance. Using ES as a boundary concept could improve integration between sectors and ES trade-off analysis can help to introduce ecosystem relations to stakeholders related to their own interests.