scholarly journals A comprehensive assessment of the intertidal biodiversity along the Portuguese coast in the early 2000s

2021 ◽  
Vol 9 ◽  
Author(s):  
Joana Pereira ◽  
Pedro Ribeiro ◽  
António Santos ◽  
Cátia Monteiro ◽  
Rui Seabra ◽  
...  

The unprecedented rates of current biodiversity loss have motivated a renewed interest in environmental and biodiversity monitoring. The need for sustained monitoring strategies has prompted not only the establisment of new long-term monitoring programmes, but also the rescue of data from historical or otherwise archived sources. Amongst the most valuable datasets are those containing information on intertidal systems, as they are particularly well suited for studying the biological effects of climate change. The Portuguese rocky coast is quite interesting for studying the effects of climate change on the distribution of species due to its geographical orientation, latitudinal patterns in temperature, species richness, species' distribution patterns and availability of historical information. This work aims at providing a comprehensive picture of the distribution and abundance of intertidal macro-invertebrates and macro-algae along the Portuguese rocky coast in the early 2000s. This study provides a description of the rocky shore intertidal biodiversity of the mainland Portuguese coast in the early 2000s. The spatial distribution and semi-quantitative abundance of a total of 238 taxa were assessed at 49 wave-exposed locations. These data provide a comprehensive baseline against which biodiversity changes can be effectively and objectively evaluated.

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Akira S. Mori ◽  
J. Hans C. Cornelissen ◽  
Saori Fujii ◽  
Kei-ichi Okada ◽  
Forest Isbell

Abstract Biodiversity loss can alter ecosystem functioning; however, it remains unclear how it alters decomposition—a critical component of biogeochemical cycles in the biosphere. Here, we provide a global-scale meta-analysis to quantify how changes in the diversity of organic matter derived from plants (i.e. litter) affect rates of decomposition. We find that the after-life effects of diversity were significant, and of substantial magnitude, in forests, grasslands, and wetlands. Changes in plant diversity could alter decomposition rates by as much as climate change is projected to alter them. Specifically, diversifying plant litter from mono- to mixed-species increases decomposition rate by 34.7% in forests worldwide, which is comparable in magnitude to the 13.6–26.4% increase in decomposition rates that is projected to occur over the next 50 years in response to climate warming. Thus, biodiversity changes cannot be solely viewed as a response to human influence, such as climate change, but could also be a non-negligible driver of future changes in biogeochemical cycles and climate feedbacks on Earth.


2019 ◽  
Vol 76 (5) ◽  
pp. 806-814
Author(s):  
Paul W. Simonin ◽  
Lars G. Rudstam ◽  
Patrick J. Sullivan ◽  
Donna L. Parrish ◽  
Bernard Pientka

We studied the consequences of a nonnative species introduction and changes in temperature on early mortality and recruitment of native rainbow smelt (Osmerus mordax) and nonnative alewife (Alosa pseudoharengus) in Lake Champlain using a simulation model. Distribution patterns of adults and young-of-the-year (YOY) fish were predicted using a model based on observed distribution of different age groups as a function of temperature and light profiles simulated on a daily basis. Mortality rates averaged over the growing season were calculated as a function of fish densities and overlap between adults and YOY. Survival of YOY rainbow smelt and alewife depended on which predator was most abundant. Rainbow smelt YOY mortality rates are highest when rainbow smelt adults are abundant, and alewife YOY mortality rates are highest when alewife adults are abundant, potentially allowing coexistence. August and September mortality rates were higher in the climate change scenario because of increased overlap of adults and YOY of both species. These results indicate that accounting for spatiotemporal fish distribution patterns can be important when forecasting the interacting effects of climate change and aquatic invasive species on fish recruitment.


2020 ◽  
Vol 12 (24) ◽  
pp. 10676
Author(s):  
Yih-Ren Lin ◽  
Pagung Tomi ◽  
Hsinya Huang ◽  
Chia-Hua Lin ◽  
Ysanne Chen

Whereas indigenous people are on the frontlines of global environmental challenges such as climate change, biodiversity loss, and numerous other forms of critical planetary deterioration, the indigenous experiences, responses, and cultural practices have been underestimated in the mainstream frameworks of environmental studies. This paper aims to articulate a meaningful response to recent calls to indigenous and local knowledge on food as a source of resilience in the face of global climate change. By retrieving the values and practices indigenous people of Taiwan, specifically Tayal women, associate with human and non-human ecologies, our collaborative work with the indigenous community explores indigenous resilience and its relevance to indigenous cultural knowledge and global environmental concerns. Pivoting on the “Millet Ark” action, a Tayal conservation initiative of the bio-cultural diversity of millets, this study revolves around issues of how Tayal communities adapt to the climate change, how to reclaim their voice, heritage, knowledge, place, and land through food, and how to narrate indigenous “counter-stories” of resilience and sustainability. The cultural narrative of “Millet Ark” investigates indigenous way of preserving millet bio-cultural diversity and restoring the land and community heritage, inquiring into how Tayal people are adaptive and resilient to change and therefore sustainable through the cultural and social life of millets.


2022 ◽  
Vol 146 ◽  
pp. 417-425
Author(s):  
Moleseng Claude Moshobane ◽  
Bester Tawona Mudereri ◽  
Mukundi Mukundamago ◽  
Tavengwa Chitata

PLoS ONE ◽  
2013 ◽  
Vol 8 (9) ◽  
pp. e74496 ◽  
Author(s):  
David A. Lutz ◽  
Rebecca L. Powell ◽  
Miles R. Silman

2021 ◽  
pp. 527-553
Author(s):  
Agnes Zolyomi

AbstractPolicy-makers define our lives to a great extent, and are therefore the people everybody wants to talk to. They receive hundreds of messages in various forms day-by-day with the aim of making them decide for or against something. They are in an especially difficult situation as regards the so-called “wicked” or “diffuse” problems such as climate change and biodiversity loss (Millner and Olivier, 2015; Sharman and Mlambo, 2012; Zaccai and Adams, 2012). These problems are limitedly tackled at the policy level despite their major socio-economic and environmental implications, which is often explained by their complexity with a sense of remoteness of effects (Cardinale et al., 2012; WWF, 2018). Communicating advocacy or scientific messages of biodiversity is therefore both a challenge and an under-researched topic (Bekessy et al., 2018; Posner et al., 2016; Primmer et al., 2015; Wright et al., 2017), where both social and natural sciences and both scientists and practitioners are needed to contribute (Ainscough et al., 2019). In order to be successful in delivering messages, communication not only needs to be self-explanatory and easy to consume but novel as well. It additionally helps if the message arrives in a more extraordinary format to draw even more attention. Based on experiences drawn from a conservation and advocacy NGO’s work, this chapter will divulge various socio-economic theories about creative methods, communication, and influencing decision-makers through a campaign fighting for the preservation of key nature legislation. It will be demonstrated how different EU policy-makers, including representatives of the European Commission and Members of the European Parliament, the general public, and other stakeholders, were addressed with various messages and tools (e.g., short films, social media campaigns, fact sheets, involvement of champions). In addition to other key factors such as public support, knowledge of the target audience and political context, the probable impacts and limitations of these messages will also be elaborated. The relevance to the integration and employment of better socio-economic theories into improving communication is straightforward. It is crucial to tailor-make future advocacy work of “wicked problems” such as biodiversity loss and climate change, since these are not usually backed up by major lobby forces and are, therefore, financed inadequately compared to their significance. Understanding the way in which policy-makers pick up or omit certain messages, as well as what framing, methods and channels are the most effective in delivering them to the policy-makers, is pivotal for a more sustainable future.


2018 ◽  
Vol 24 (02) ◽  
pp. 26-32
Author(s):  
Batkhuyag B ◽  
Batnaran Kh

Mongolia’s 2030 Sustainable Development Vision set a goal to be a self-sufficient in grain, potatoes and vegetables by 2030. However, Mongolia’s pastoral animal husbandry and rain-fed agriculture are extremely sensitive to climate change. The Asian migratory locust is considered as the most harmful grasshopper in the world. Until 1970th, these locust’s distribution areas in Mongolia were confined to oasis of Gobi deserts. A study on Asian migratory locust in Russia predicts distribution and formation of new permanent habitats of the locust in Chita oblast, Krasnoyarsk territory and Republic of Tyva. The Colorado beetle is one of the world’s most infamous invasive species due to its rapid adaptation to a wide range of ecological conditions and ability to disperse long distances. The climate modeling of Colorado beetle showed that with current trend, the beetle will expand its distribution into the most eastern and north-eastern regions of the Russian Federation. In China, the Colorado beetle was first detected in Xinjiang in 1993 and subsequently spread eastward. In China the Colorado beetle is currently expanding its areas at rate of 25 kms year (12-45 kms/year). Both species’ distribution patterns in neighboring countries show eventual establishment of permanent habitats around Mongolia. Their invasion to Mongolia will threaten country’s food security due to direct destruction of cereal and potato crops, and increased application of highly toxic pesticides. In light of these threats, Mongolia should start taking serious preventive measures by increasing surveillance and dedicated risk assessment studies for potential agricultural pests and diseases.


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