Preprints (not yet peer-reviewed)

29 downloads
183 views

In some insects, males produce costly ejaculates that reduce the typical sexual imbalance in potential reproductive rates thus influencing the mode and intensity of sexual selection. In Lepidoptera, in particular, males tend to invest heavily in mate searching,...

["Ecology","Entomology","Evolutionary Studies","Zoology"]
doi:10.7287/peerj.preprints.2598v1
76 downloads
193 views

The coast of northern Primorye region, north of Peter the Great Bay has been sparsely studied in regards to its molluscan fauna, with just a few works reviewing the distribution of local mollusks. This work presents a survey of the shallow water heterobranch sea...

["Biodiversity","Marine Biology","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.2590v1
54 downloads
164 views

During the 19th and 20th century eponyms have been widely used in taxonomy to honour collectors of material on which new taxa have been based. Also have new taxa been dedicated to author-colleagues. Five cases are discussed to trace the extend of overlap between...

["Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.2587v1
38 downloads
163 views

Corvids (birds in the crow family) are hypothesised to have a general cognitive tool-kit because they show a wide range of transferrable skills across social, physical and temporal tasks, despite differences in socioecology. However, it is unknown whether relatively...

["Animal Behavior","Zoology"]
doi:10.7287/peerj.preprints.2552v1
161 downloads
173 views

Pachycormids occupy a key position within Actinopterygii, as part of the Holostei- Teleostei Transition, although their precise position in this hierarchy has been fought over for some years. Discoveries in the last three years have expanded our global knowledge...

["Aquaculture, Fisheries and Fish Science","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.2550v1
90 downloads
205 views

This study was aimed to investigate the effects of room temperature (RT, 20-25 oC) and absence of medium during cauda epididymis transport on spermatozoa quality, fertility and embryo development. In the first experiment, fresh sperm from one side of cauda epididymis...

["Biotechnology","Developmental Biology","Zoology"]
doi:10.7287/peerj.preprints.2542v1
222 downloads
845 views

Thalattosuchians were highly specialised marine archosaurs of the Jurassic and Early Cretaceous, and represent a peak of aquatic adaptation among crocodylomorphs. Relatively little is known of their endocranial anatomy or its relevance for the evolution of sensory...

["Paleontology","Zoology"]
doi:10.7287/peerj.preprints.2539v1
156 downloads
286 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:10.7287/peerj.preprints.2517v1
44 downloads
269 views

The Louisiana Waterthrush (Parkesia motacilla) breeds along wooded streams throughout much of eastern North America, and winters in the Caribbean and Central America. Because of its dependence on stream macroinvertebrates—which are themselves dependent on high...

["Ecology","Genetics","Molecular Biology","Zoology"]
doi:10.7287/peerj.preprints.2498v1
208 downloads
365 views

The main function of brains is to generate adaptive behavior. Far from being the stereotypical, robot-like insect, the fruit fly Drosophila exhibits astounding flexibility and chooses different courses of actions even under identical external circumstances. Due...

["Animal Behavior","Genetics","Neuroscience","Zoology"]
doi:10.7287/peerj.preprints.2491v1
46 downloads
267 views

Aggressive interactions among closely related species are common. These can play an important role as a selective pressure shaping species, traits and assemblages. The nature of this selective pressure depends on whether the outcomes of aggressive contests are...

["Animal Behavior","Ecology","Evolutionary Studies","Zoology"]
doi:10.7287/peerj.preprints.2488v1
31 downloads
254 views

The dogwhelk Nucella lapillus is a rocky intertidal gastropod of the North Atlantic coast. Individual shell color varies. Common colors range between white and brown, with darker dogwhelks being more affected by heat stress than lighter-colored conspecifics. Other...

["Biogeography","Ecology","Marine Biology","Zoology"]
doi:10.7287/peerj.preprints.2486v1
73 downloads
274 views

Cassiopea xamachana jellyfish are an attractive model system to study metamorphosis and/or cnidarian-dinoflagellate symbiosis due to the ease of cultivation of their planula larvae and scyphistomae through their asexual cycle, in which the latter can bud new larvae...

["Developmental Biology","Marine Biology","Zoology"]
doi:10.7287/peerj.preprints.2462v1
58 downloads
309 views

The Mexican Garter Snake (Thamnophis eques) is a terrestrial-aquatic generalist because it feeds on both aquatic and terrestrial prey. We describe size-related variation and slight sexual variation in the diet of Thamnophis eques through analysis of 262 samples...

["Conservation Biology","Ecology","Zoology"]
doi:10.7287/peerj.preprints.2442v1
286 downloads
804 views

We evaluate the population genetic structure of the intertidal barnacle Jehlius cirratus across a broad portion of its geographic distribution using data from the mitochondrial cytochrome oxidase I (COI) gene region. Despite sampling diversity from over 3000km...

["Biodiversity","Ecology","Evolutionary Studies","Marine Biology","Zoology"]
doi:10.7287/peerj.preprints.596v4
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