It is with great pleasure that we announce the launch of our Biodiversity Conservation Collection. This Collection showcases research on a broad range of conservation science related topics, including anthropogenic impacts on biodiversity, such
It is with great pleasure that we announce the launch of our Biodiversity Conservation Collection. This Collection showcases research on a broad range of conservation science related topics, including anthropogenic impacts on biodiversity, such as habitat degradation, the spread of invasive species and global warming; conservation of key ecosystem services, such as carbon sequestration and pest regulation; and new management strategies to prevent further biodiversity loss.
We are extremely grateful to our team of Guest Editors, Steve Beissinger (University of California, Berkeley), Thomas Couvreur (Pontificia Universidad Catolica del Ecuador), Carlos Duarte (KAUST), Claudia Mettke-Hoffmann (Liverpool John Moores University) and Stuart Pimm (Duke University), for evaluating all submitted research and selecting articles for inclusion in the Collection. We also want to express our thanks to the PLOS ONE Academic Editors involved in the handling of submissions, to the reviewers, and to all the authors who submitted their research to this Call for Papers.
Eight of the studies published in the initial Collection release focus on habitat destruction in a wide range of regions, ecosystems and species. In the North Pacific Ocean, Edwards et al. investigated the ecological consequences of marine deforestation caused by shifting trophic interactions in the Aleutian Archipelago. They show that the rapid decline of sea otter populations, caused by increased predation pressure from killer whales, led to high sea urchin densities causing widespread deforestation of the kelp forests and general loss of biodiversity and ecosystem function. In the mainland USA, Bradshaw et al. evaluated whether wetland management practices for waterfowl were also beneficial to other wetland-dependent species such as bitterns, grebes and crakes. Habitats for marsh bird species have more than halved in the last 50 years due to wetland loss and degradation; their results highlight the importance of maintaining wetland hydrologic and vegetation complexity for the conservation of breeding marsh birds.
In Brazil, three independent studies provide evidence of the impacts of habitat fragmentation in the Amazon rain forest, where biodiversity has rapidly declined in recent decades. Palmeirim et al. quantified the effect of deforestation on small mammals and found that forest dwelling species are being replaced by open-habitat species as the deforestation frontier expands. Teixeira-Santos et al. studied four endangered emblematic large terrestrial mammals and showed that the survival ability was different for each species and that some species can adapt to tolerate anthropogenically altered habitats. Paschoalini et al. studied the effects of habitat fragmentation on the Araguaian river dolphin, whose populations have been dramatically reduced due to dam construction. This research provides potential practical applications to help species management and conservation in the region, as occupation and development of the Amazon is currently being encouraged in Brazil.
When the habitat is fragmented, isolated populations lose genetic diversity, leaving them more vulnerable to changing environmental conditions and with a higher risk of extinction. In the Midwestern USA, Douglas et al. examined the genetic population structure of three upland game birds inhabiting the declining American prairie grasslands, including the endangered Greater Prairie Chicken, and found that their populations are experiencing a genetic bottleneck. They advocate for a multi-species approach as a more effective management strategy for endangered upland game birds and for making more land available to prairie species. In the United Kingdom, Ball et al. conducted a study on the conservation genetic state of adder populations and found that the species’ polyandrous breeding system is, for the moment, protecting it against inbreeding. However, this might become a problem in the future as loss of connectivity prevents movement of individuals between patches of suitable habitat. Dondina et al. studied the suitability of ecological corridors to connect two isolated wolf populations through the degraded lowlands of Northern Italy and showed the importance of keeping natural areas, such as rivers, for maintaining habitat connectivity for the conservation of endangered species in a fragmented landscape.
Three studies among the first batch of articles published in this Collection address the impacts of climate change on biodiversity and potential mitigation strategies. Carbon sequestration has been suggested as a potential approach to mitigating the effects of greenhouse gas emissions responsible for global warming. In Spain, Morant et al. investigated the relationships between wetlands’ ecological characteristics, conservation measures and carbon emissions in the Ebro Delta wetlands. Wetlands are an important ecosystem service acting as natural carbon sinks but are under threat due to habitat destruction.
Large-scale empirical studies of the existing and projected impacts of climate change on wildlife are vital to scientifically-informed conservation management strategies aimed at minimizing and mitigating these impacts. In Southern California, Fogarty et al. used a large bird abundance dataset to investigate whether annual variation in seasonal temperature and precipitation was associated with relative abundances of breeding bird species. They found that species in arid areas may be negatively affected by increased temperature and aridity, but species from cooler areas may respond positively to those fluctuations in climate. Carbon pricing policies can also have unintended consequences for biodiversity through changing land management. Hashida et al. modelled forest habitat changes in response to forest landowner decision-making under multiple carbon pricing scenarios in Western USA. Their results predict a major shift from coniferous forest to hardwoods which could result in a dramatic loss of biodiversity in the region.
Three studies published in the Collection showcase research on species invasions. International trade is a major pathway of introduction of invasive species. Lucardi et al. conducted a comprehensive survey of the plant community at the largest container terminal in the USA . Their research identified the presence of a high number of invasive plant species in the port, providing important evidence that shipping ports are crucial sources of emergent plant invasions but are largely under-researched. Invasive species can have complex ecological impacts on the regions of invasion. Besterman et al. studied the ecological impacts of the establishment of one of the most invasive macroalgae on habitat selection and foraging behaviour of shorebirds in the mid-Atlantic region of the USA and found that generalist species preferred invaded habitats while specialist shorebirds preferred uninvaded mudflats. Invasive species also cause major economic losses in the regions of invasion. One of the most successful methods for sustainable management of invasive species is using their own natural enemies against them. In Morocco, Qessaoui et al. discovered the insecticidal activity of native rhizobacteria present in the soil against an important pest of tomato crops and suggested that using biological control agents would reduce the amount of synthetic chemical pesticides being used to control plant pests.
Finally three papers report methodological advances in conservation of endangered species. Endangered species are usually difficult to study because their population densities are low which hampers conservation efforts. Here, Nagarajan et al. report successful results of a non-invasive method for monitoring a wood-boring beetle species threatened by habitat loss in California. Current monitoring efforts require extensive field work looking for this rare species. In this study, the authors collected faecal samples from exit holes on trees and applied genetic barcoding techniques to identify the makers of the holes.
Large terrestrial carnivores are often keystone species in the ecosystems but have historically been persecuted and their populations are in decline globally. In the USA, sport hunting is used as a tool for managing puma populations. Laundré et al. investigated the effectiveness of this strategy for reducing conflict with humans, livestock and game species. Their results indicate that there is little evidence that puma control reduces conflict, and remark the need to reassess traditional predator control practices.
Management of captive populations is crucial for conservation of endangered species whose wild populations are at high risk of extinction. Fazio et al. studied the stress physiology of the fishing cat, a threatened wild cat from Southeast Asia, that is notoriously difficult to breed in captivity. Their study suggests that management actions such as transfers between facilities increases levels of stress while reduced animal-keeper interaction and social housing could lower stress levels and increase breeding success. This study might provide insights to better manage translocations of captive individuals of easily stressed species.
At the time of launch, there are 17 research articles featured in the Collection but more papers will be added as they are published over the coming weeks – so do check back for updates!
About the Guest Editors:
Steve Beissinger is Professor of Ecology & Conservation Biology at the University of California, Berkeley, where he held the A. Starker Leopold Chair in Wildlife Biology (2003-13), is a research associate of the Museum of Vertebrate Zoology, and is the co-Director of the Berkeley Institute for Parks, People and Biodiversity. Professor Beissinger’s current research centers on wildlife responses to global change and species’ extinctions – with recent fieldwork carried out in protected areas and working landscapes in California and Latin America. He directs the Grinnell Resurvey Project – a 15 year effort to revisit locations throughout California first surveyed by Joseph Grinnell in the early 1900’s in order to quantify the impacts of a century of climate and land-use change on the birds and mammals of California. Steve’s studies of parrotlets in Venezuela extend more than 30 years. Integrative studies of secretive, threatened rails in California provide a model for understanding coupled natural and human systems. He has authored over 200 scientific publications and is senior editor of three books. He served on the editorial boards of Ecology Letters, Ecology, Conservation Biology, Studies in Avian Biology, and Climate Change Responses. Steve is a Fellow of the American Association for the Advancement of Science, the Ecological Society of America (ESA), the Wissenschaftskolleg zu Berlin, and the American Ornithological Society, which awarded him the William Brewster Memorial Award in 2010 for his research on Western Hemisphere birds.
Thomas L.P. Couvreur is a senior researcher at the French National Institute for Sustainable Development, and is currently based at the “Pontificia Universidad Catolica del Ecuador”, in Quito Ecuador. He received his PhD in tropical biodiversity from the Wageningen University in the Netherlands, and worked as post doc at the Osnabruck University in Germany and The New York Botanical Garden in the USA. His main interest lies in understanding the evolution, resilience and diversity of tropical biodiversity, and rain forests in particular, one of the most complex and diverse ecosystems on the planet. He undertakes research in taxonomy, conservation, molecular phylogenetics and phylogeography of tropical plants. His research mainly focuses on tropical Africa and South America. He is chair of the IUCN Species Survival Commission for palms since 2018.
Professor Carlos M. Duarte (Ph.D. McGill University, 1987) is the Tarek Ahmed Juffali Research Chair in Red Sea Ecology at the King Abdullah University of Science and Technology (KAUST), in Saudi Arabia. Before this he was Research Professor with the Spanish National Research Council (CSIC) and Director of the Oceans Institute at The University of Western Australia.
Duarte’s research focuses on understanding the effects of global change in aquatic ecosystems, both marine and freshwater. He has conducted research across all continents and oceans, spanning most of the marine ecosystem types, from inland to near-shore and the deep sea and from microbes to whales. Professor Duarte led the Malaspina 2010 Expedition that sailed the world’s oceans to examine the impacts of global change on ocean ecosystems and explore their biodiversity. Professor Duarte served as President of the American Society of Limnology and Oceanography between 2007 and 2010. In 2009, was appointed member of the Scientific Council of the European Research Council (ERC), the highest-level scientific committee at the European Level, where he served until 2013. He has published more than 700 scientific papers and has been ranked within the top 1% Highly-Cited Scientist by Thompson Reuters in all three assessments of this rank, including the 2018 assessment released by Clarivate Analytics.
Dr Claudia Mettke-Hofmann is Reader in Animal Behaviour at Liverpool John Moores University, UK, and Subject Leader of the Animal Behaviour team. She received her externally conducted PhD from Free University of Berlin, Germany, and subsequently worked as a postdoc at the Max-Planck Institute for Ornithology in Radolfzell and Andechs, Germany, in collaboration with the Konrad Lorenz Institute for Comparative Behaviour, Vienna, Austria, before moving to the Smithsonian Migratory Bird Center, Washington DC, USA. She is now based at Liverpool John Moores University. Her research area is cognitive ecology, mainly in birds, with strong links to conservation aspects and animal welfare. She investigates how animals collect and store environmental information in relation to their ecology on the species level but also on the individual level (personality). A focus is how animals respond to environmental change, particularly in species that differ in their movement patterns such as being resident, migratory or nomadic. Differences in cognitive abilities in these groups help explain and predict population developments in our rapidly changing environments. More recently, her research has focussed on individual differences in cognition in colour-polymorphic species highlighting exciting differences in responses to environmental change between colour morphs. Claudia has been a PLOS ONE Section Editor since 2014.
Stuart Pimm is the Doris Duke Chair of Conservation Ecology at the Nicholas School of the Environment at Duke University. He is a world leader in the study of present day extinctions and what we can do to prevent them. Pimm received his BSc degree from Oxford University in 1971 and his Ph.D from New Mexico State University in 1974. Pimm is the author of over 300 scientific papers and four books. Pimm directs SavingSpecies, a 501c3 non-profit that uses funds for carbon emissions offsets to fund local conservation groups to restore degraded lands in areas of exceptional tropical biodiversity. His international honours include the Tyler Prize for Environmental Achievement (2010), the Dr. A.H. Heineken Prize for Environmental Sciences from the Royal Netherlands Academy of Arts and Sciences (2006).
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