Preprints
There are 1657 Preprints listed.
How to approach the study of syndromes in macroevolution and ecology
Published: 2021-09-01
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences
Syndromes, wherein multiple traits evolve convergently in response to a shared selective driver, form a central concept in ecology and evolution. Recent work has questioned the utility and indeed the existence of some of the classic syndromes, such as pollination and seed dispersal syndromes. Here, we discuss some of the major issues that have plagued research into syndromes in macroevolution. [...]
Standardized NEON organismal data for biodiversity research
Published: 2021-09-01
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences
Understanding patterns and drivers of species distributions and abundances, and thus biodiversity, is a core goal of ecology. Despite advances in recent decades, research into these patterns and processes is currently limited by a lack of standardized, high-quality, empirical data that spans large spatial scales and long time periods. The National Ecological Observatory Network (NEON) fills this [...]
Breeding in the pandemic: short-term lockdown restrictions do not alter reproductive decisions and avian life-history traits in a European capital city
Published: 2021-09-01
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
Humans are transforming natural habitats into managed urban green areas and impervious surfaces with unprecedented pace. Yet the effects of human presence per se on animal life-history traits are rarely tested. This is particularly true in cities, where human presence is often indissociable from urbanisation itself. The onset of the SARS-CoV-2 outbreak, along with the resulting lockdown [...]
The arrival and spread of the European firebug Pyrrhocoris apterus in Australia as documented by citizen scientists
Published: 2021-09-01
Subjects: Biodiversity, Ecology and Evolutionary Biology, Entomology, Life Sciences
We present evidence of the recent introduction and quick spread of the European firebug Pyrrhocoris apterus in Australia, as documented on the citizen science platform iNaturalist. The first public record of the species was reported in December 2018 in the City of Brimbank (Melbourne, Victoria). Since then, the species distribution has quickly expanded into 15 local government areas surrounding [...]
Decomposing phenotypic skew and its effects on the predicted response to strong selection
Published: 2021-08-31
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences
The major frameworks for predicting evolutionary change assume that a phenotypes underlying genetic and environmental components are normally distributed. However, the predictions of these frameworks may no longer hold if distributions are skewed. Despite this, phenotypic skew has never been decomposed, meaning the fundamental assumptions of quantitative genetics remain untested. Here, we [...]
What state of the world are we in? Targeted monitoring to detect transitions in vegetation restoration projects.
Published: 2021-08-29
Subjects: Biodiversity, Life Sciences
Monitoring vegetation restoration is challenging because ‘best practice’ monitoring is costly, requires long-term funding, and involves monitoring multiple vegetation variables which are often not linked back to learning about progress toward objectives. There is a clear need for the development of targeted monitoring programs that focus on a reduced set of variables that are tied to specific [...]
The effect of brief or prolonged bouts of winning or losing male-male contests on plasticity in sexually selected traits
Published: 2021-08-28
Subjects: Behavior and Ethology, Ecology and Evolutionary Biology, Evolution, Life Sciences
Fight outcomes often affect male fitness by determining their access to mates. Thus ‘winner-loser’ effects, where winners often win their next contest, while losers tend to lose, can influence how males allocate resources towards pre- and post-copulatory traits. We experimentally manipulated the winning/losing experiences of pairs of size-matched male Gambusia holbrooki for either a day, a week [...]
Fuel connectivity, burn severity, and seedbank survivorship drive ecosystem transformation in a semi-arid shrubland.
Published: 2021-08-27
Subjects: Desert Ecology, Ecology and Evolutionary Biology, Life Sciences
A key challenge in ecology is understanding how multiple drivers interact to precipitate persistent vegetation state changes. These state changes may be both precipitated and maintained by disturbances, but predicting whether the state change is fleeting or persistent requires an understanding of the mechanisms by which disturbance affects the alternative communities. In the sagebrush shrublands [...]
Drivers of the live pet trade: the role of species traits, socioeconomic attributes and regulatory systems
Published: 2021-08-26
Subjects: Environmental Sciences, Natural Resources and Conservation, Physical Sciences and Mathematics
The live pet trade is a major driver of both biodiversity loss and the introduction of invasive alien species. Building a comprehensive understanding of the pet trade would improve prediction of conservation and biosecurity threats, with the aim to prevent further negative impacts. We used South Australia’s native wildlife permit reporting system as a data-rich example of a live vertebrate pet [...]
The potential contribution of kurī (Polynesian dog) to the ecological impacts of the human settlement of Aotearoa New Zealand
Published: 2021-08-26
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Other Ecology and Evolutionary Biology
The pre-human Aotearoa New Zealand ecosystem was dominated by avian and reptilian species. Prior to first human settlement by East Polynesian colonists, the top predators were two giant raptorial birds. Aside from humans themselves, colonisation also resulted in the introduction of two novel mammalian predators into this naive ecosystem, the kiore (Pacific rat) and kurī (Polynesian dog). While [...]
Nest-boxes alter the reproductive ecology of urban cavity-nesters in a species-dependent way
Published: 2021-08-25
Subjects: Animal Sciences, Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Ornithology, Population Biology
To mitigate the shortage of natural breeding sites in cities, nest-boxes are provided for cavity-nesters. However, these are not the breeding sites these animals originally evolved in and optimised their breeding performance to. It thus remains inconclusive if nest-boxes can provide adequate substitutes, ensuring equivalent fitness returns for breeding animals. Additionally, the majority of [...]
Many parasitoids lack adult fat accumulation, despite fatty acid synthesis: A discussion of concepts and considerations for future research
Published: 2021-08-25
Subjects: Biology, Ecology and Evolutionary Biology, Entomology, Life Sciences, Physiology
Fat reserves, specifically the accumulation of triacylglycerols, are a major energy source and play a key role for life histories. Fat accumulation is a conserved metabolic pattern across most insects, yet in most parasitoid species adults do not gain fat mass, even when nutrients are readily available and provided ad libitum. This extraordinary physiological phenotype has evolved repeatedly in [...]
Towards evolutionary predictions: current promises and challenges
Published: 2021-08-25
Subjects: Ecology and Evolutionary Biology, Evolution, Life Sciences
Evolution has traditionally been a historical and descriptive science and predicting future evolutionary processes has long been considered impossible. However, evolutionary predictions are increasingly being developed and used in medicine, agriculture, biotechnology and conservation biology. Evolutionary predictions may be used for different purposes, such as to prepare for the future, to try [...]
Recognize diverse approaches to area-based conservation of nature
Published: 2021-08-24
Subjects: Environmental Studies, Other Social and Behavioral Sciences, Social and Behavioral Sciences
To conserve nature globally, policies and practices must recognize the contribution of diverse environmental governance systems to nature stewardship.
WHY DO INSECTS EVOLVE IMMUNE PRIMING? A SEARCH FOR CROSSROADS
Published: 2021-08-24
Subjects: Animal Sciences, Ecology and Evolutionary Biology, Education, Entomology, Immunity, Immunology and Infectious Disease, Life Sciences
Until recently, it was assumed that insects lack immune memory since they do not have vertebrate-like specialized memory cells. Therefore, their most well studied evolutionary response against pathogens was increased basal immunity. However, growing evidence suggests that many insects also exhibit a form of immune memory (immune priming), where prior exposure to a low dose of infection confers [...]