1. The elevational gradient in plant defense (EGPD) hypothesis posits that natural enemy pressures increase positively alongside temperature across elevational climatic gradients, thereby selecting for enhanced defenses at lower elevations while leaving plants...

["Ecology","Entomology","Plant Science"]
doi:10.7287/peerj.preprints.2733v1

Background The shells of molluscs survive well in many sedimentary contexts and yield information about the diet of prehistoric humans. They also yield evidence of symbolic behaviours through their use as beads for body adornments. Researchers often analyse the...

["Ecology","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.2903

Antipredatory defenses are maintained when benefit exceeds cost. A weak predation pressure may lead insular lizards to tameness. Podarcis lilfordi exhibits a high degree of insular tameness, which may explain its extinction from the main island of Menorca when...

["Animal Behavior","Ecology","Zoology"]
doi:10.7717/peerj.2828
1 download
2 views

Phytochemicals produced by plants, including at flowers, function in protection against plant diseases, and have a long history of use against trypanosome infection. Floral nectar and pollen, the sole food sources for many species of insect pollinators, contain...

["Ecology","Entomology","Parasitology","Plant Science","Infectious Diseases"]
doi:10.7287/peerj.preprints.2730v1
45 downloads
307 views

1. Interspecific relationships, termed symbiosis, are considered very diverse, while intraspecific relationships have just two categories. 2. The present classification fails to define all interactions among members of the same species, as demonstrated by observations...

["Animal Behavior","Ecology","Zoology"]
doi:10.7287/peerj.preprints.2563v3
461 downloads
1,607 views

A central challenge in the present era of biodiversity loss is to assess and manage human impacts on freshwater ecosystems. Macroinvertebrates are an ideal group for Environmental Impacts Assessment (EIA). However, generating accurate macroinvertebrate inventories...

["Biodiversity","Bioinformatics","Ecology","Genetics","Molecular Biology"]
doi:10.7287/peerj.preprints.2044v4
23 downloads
143 views

Residence time (τ) is the average amount of time that particles spend in an ecosystem. Often estimated from the ratio of volume to flow rate, τ equates the physical environment with dynamics of growth. Here, we propose that τ is key to understanding relationships...

["Biodiversity","Ecology","Ecosystem Science","Microbiology"]
doi:10.7287/peerj.preprints.2727v1
1 download
39 views

Background. Theory predicts strong bottom-up control in detritus-based food webs, yet field experiments with detritus-based terrestrial systems have uncovered contradictory evidence regarding the strength and pervasiveness of bottom-up control processes. Two factors...

["Ecology","Soil Science","Zoology"]
doi:10.7287/peerj.preprints.2722v1
20 downloads
49 views

In order to understand the distribution and prevalence of Ommatissus lybicus (Homoptera: Tropiduchidae) as well as analyse their current biographical patterns and predict their future spread, comprehensive and highly sophisticated information on the environmental,...

["Agricultural Science","Ecology","Ecosystem Science","Entomology","Environmental Sciences"]
doi:10.7287/peerj.preprints.2716v1
70 downloads
341 views

Statistical testing of trait-environment association from data is a challenge as there is no common unit of observation: the trait is observed on species, the environment on sites and the mediating abundance on species-site combinations. A number of correlation-based...

["Ecology","Statistics"]
doi:10.7717/peerj.2885
42 downloads
222 views

Species distribution models (SDMs) have become an essential tool in ecology, biogeography, evolution and, more recently, in conservation biology. How to generalize species distributions in large undersampled areas, especially with few samples, is a fundamental...

["Biodiversity","Biogeography","Conservation Biology","Ecology","Zoology"]
doi:10.7717/peerj.2849
33 downloads
88 views

Grazing extensification and intensification are among the main problems affecting European grasslands. We analyze the impact of grazing intensity (low and moderate) and the use of veterinary medical products (VMPs) on the dung beetle community in the province of...

["Biodiversity","Ecology","Entomology","Environmental Sciences","Veterinary Medicine"]
doi:10.7717/peerj.2780
111 downloads
462 views

The importance of 16S rRNA gene amplicon profiles for understanding the influence of microbes in a variety of environments coupled with the steep reduction in sequencing costs led to a surge of microbial sequencing projects. The expanding crowd of scientists and...

["Bioinformatics","Ecology","Microbiology"]
doi:10.7717/peerj.2836
30 downloads
192 views

Background Estimates of fishing and natural mortality are important for understanding, and ultimately managing, commercial and recreational fisheries. High reward tags with fixed station acoustic telemetry provides a promising approach to monitoring mortality rates...

["Aquaculture, Fisheries and Fish Science","Computational Biology","Ecology","Statistics"]
doi:10.7717/peerj.2874
20 downloads
243 views

Solar salterns are excellent model ecosystems for studying virus-microbial interactions because of their low microbial diversity, environmental stability, and high viral density. By using the power of CRISPR spacers to link viruses to their prokaryotic hosts, we...

["Bioinformatics","Computational Biology","Ecology","Genomics","Microbiology"]
doi:10.7717/peerj.2844

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