Preprints
There are 2505 Preprints listed.
Identifying cryptic fern gametophytes using DNA barcoding: A review
Published: 2021-12-14
Subjects: Biology, Ecology and Evolutionary Biology, Genetics and Genomics, Life Sciences, Plant Sciences
Ferns and lycophytes are unique among land plants for having sporophyte (diploid) and gametophyte (haploid) generations that can grow independently of each other. While most studies of fern ecology focus on the more obvious sporophytic stage, the gametophyte is critically important, as it is the sexual phase of the life cycle. Yet, fern gametophytes have long been neglected in field studies due [...]
Global birdwatching data reveal uneven consequences of the COVID-19 pandemic
Published: 2021-12-10
Subjects: Biodiversity, Life Sciences
Birdwatching is a global phenomenon involving many thousands of people. Citizen science generates data providing insights into global patterns of bird distribution across space and time, yet how the pandemic may cast a longer shadow remains unassessed. Here, we explore whether pandemic restrictions influenced observations globally from 2020-May 2021, considering also GDPc and tourism income. We [...]
Multiple anthropogenic stressors have inconsistent cumulative effects across a large spatial gradient
Published: 2021-12-09
Subjects: Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology, Terrestrial and Aquatic Ecology
Biodiversity is declining, typically because of multiple anthropogenic stressors. Cumulative effects of multiple stressors are classified as additive, when cumulative effects are as expected from the stressor’s singular effects, synergistic when greater than additive or antagonistic when less than additive. Less attention has been given to the consistency of cumulative effects. We analysed stream [...]
Direct Economic Inputs from Internationally Funded Science Projects to the Abaco Islands, The Bahamas
Published: 2021-12-06
Subjects: Communication, Environmental Studies, International and Intercultural Communication, Life Sciences, Other Life Sciences, Social and Behavioral Sciences
International expenditures for scientific research are important for small island developing nations, especially for those local communities that directly support research activities. We used the Abaco Islands, The Bahamas, as a case study to quantify the direct monetary inputs to a local economy via internationally-funded scientific research. We found that over two years the external monetary [...]
Selfish, promiscuous, and sometimes useful: how mobile genetic elements drive horizontal gene transfer in microbial populations
Published: 2021-12-04
Subjects: Ecology and Evolutionary Biology, Evolution, Genetics and Genomics, Genomics, Life Sciences, Microbiology, Other Microbiology
Horizontal gene transfer (HGT) drives microbial adaptation but is often under the control of mobile genetic elements (MGEs) whose interests are not necessarily aligned with those of their hosts. In general, transfer is costly to the donor cell while potentially beneficial to the recipients. The diversity and plasticity of cell-MGEs interactions, and those among MGEs, results in complex [...]
Bothersome burrowers: tracking gopher (Thomomys bottae) time-averaging in a late-Holocene site in California
Published: 2021-12-04
Subjects: Biology, Integrative Biology, Life Sciences
Understanding the taphonomic biases affecting fossil deposits is necessary in order to extract their true ecological signals. In terrestrial sites, the mixing of fossil material by mammalian bioturbators can substantially increase time-averaging, obscuring or even erasing stratification. In particular, pocket gophers (Thomomys sp.) are known to burrow in Holocene sites and thereby complicate the [...]
Sustainable Entrepreneurship and Innovation. Addressing the Grand Challenges through Radical Change and Open Innovation.
Published: 2021-12-04
Subjects: Business, Technology and Innovation
Sustainable Entrepreneurship and Innovation are essential tools in the transition towards a more fair, healthy, and sustainable society. This chapter gives an overview of the two decades of research on the topic and discusses the current state of its application. It shows that the current literature lacks a more profound theoretical and practical investigation. Nevertheless, these gaps may be [...]
Mitochondria as the powerhouses of sexual selection: testing mechanistic links between development, cellular respiration, and bird song
Published: 2021-12-04
Subjects: Biology, Integrative Biology, Life Sciences
Although the influence of developmental conditions on the expression of sexually selected traits is established, the physiological mechanisms that modulate such effects remain a matter of intense debate. Here, we test the role of the developmental environment in shaping adult mitochondrial function and link mitochondrial function to expression of a sexually selected trait in males (bird song). We [...]
Microbiotic particles in water and soil, water-soil microbiota coalescences, and antimicrobial resistance
Published: 2021-11-30
Subjects: Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Marine Biology, Microbiology
Bacterial organisms like surfaces. Water and soil contain a multiplicity of particulated material where bacterial populations and communities might attach. Microbiotic particles refers to any type of small particles (less than 2 mm) where bacteria (and other microbes) might attach, resulting in medium- long-term colonization. In this work, the interactions of bacterial organisms with microbiotic [...]
Open Eco-innovation. The New Form of Cooperation for Sustainable Future.
Published: 2021-11-30
Subjects: Business, Technology and Innovation
This chapter is dedicated to the concept of Open Eco-innovation - an emerging form of cooperation for sustainable development, particularly for environmental sustainability. Our society currently faces a number of environmental challenges that cannot be solved individually and require a collaborative approach. One of the ways to harness the power of collaboration and access the external resources [...]
Idea Paper: improving forecasts of community composition with lightweight biodiversity monitoring across ecological and anthropogenic disturbance gradients
Published: 2021-11-30
Subjects: Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Accurate and up-to-date biodiversity forecasts enable robust planning for environmental management and conservation of landscapes under a wide range of uses. Future predictions of the species composition of ecological communities complement more frequently reported species richness estimates to better characterize the different dimensions of biodiversity. The models that make community [...]
A review of chemical defense in harlequin toads (Bufonidae; Atelopus)
Published: 2021-11-29
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences, Other Ecology and Evolutionary Biology, Other Pharmacology, Toxicology and Environmental Health, Pharmacology, Toxicology and Environmental Health
Toads of the genus Atelopus are chemically defended by a unique combination of endogenously synthesized cardiotoxins (bufadienolides) and neurotoxins which may be sequestered (guanidinium alkaloids). Investigation into Atelopus small-molecule chemical defenses has been primarily concerned with identifying and characterizing various forms of these toxins while largely overlooking their ecological [...]
Temporal patterns in prey size between sexes in a raptor with extreme size dimorphism: testing the intersexual competition hypothesis using web-sourced photographs
Published: 2021-11-28
Subjects: Animal Sciences, Behavior and Ethology, Ecology and Evolutionary Biology, Evolution, Life Sciences, Ornithology, Zoology
In most vertebrates, males are larger than females. For raptors, sexual size dimorphism is reversed, with females being larger. Reversed sexual dimorphism (RSD) in raptors is strongly linked to diet, with species feeding on the most agile prey, for example bird-eating raptors, showing the greatest size differences between the sexes. Hypotheses for reversed sexual dimorphism (RSD) include the [...]
ROBITT: a tool for assessing the risk-of-bias in studies of temporal trends in ecology
Published: 2021-11-25
Subjects: Ecology and Evolutionary Biology, Life Sciences, Population Biology
1. Aggregated species occurrence and abundance data from disparate sources are increasingly accessible to ecologists for the analysis of temporal trends in biodiversity. However, sampling biases relevant to any given research question are often poorly explored and infrequently reported; this has the potential to undermine statistical inference. In other disciplines, but particularly medicine, [...]
Estimating the societal benefits from wildfire mitigation activities in a payments for watershed services program in Colorado
Published: 2021-11-24
Subjects: Economics, Other Economics, Social and Behavioral Sciences
Payments for watershed services (PWS) programs are becoming a popular governance approach in the western United States (US) to fund forest management aimed at source water protection. In this paper we conduct a cost-benefit analysis (CBA) of one of the first collaboratively funded PWS programs in the US, located in the municipal watersheds servicing Denver, Colorado. We combine wildfire modeling, [...]