Peer-reviewed Articles

Total of 326 results
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zoology
188 downloads
987 views

The new neopterygian genus Ticinolepis, including two new species T. longaeva and T. crassidens is described from Middle Triassic carbonate platform deposits of the Monte San Giorgio. The anatomy of this fish shows a mosaic of halecomorph and ginglymodian characters...

["Paleontology","Zoology"]
doi:10.7717/peerj.2234
17 downloads
77 views

Background. The availability of environmental energy, as measured by temperature, is expected to limit the abundance and distribution of endotherms wintering at temperate latitudes. A prediction of this hypothesis is that birds should attain their highest abundances...

["Ecology","Biogeography","Zoology","Biodiversity"]
doi:10.7717/peerj.2156
105 downloads
786 views

Horse racing is a multi-billion-dollar industry that has raised welfare concerns due to injured and euthanized animals. Whilst the cause of musculoskeletal injuries that lead to horse morbidity and mortality is multifactorial, pre-existing pathologies, increased...

["Animal Behavior","Veterinary Medicine","Zoology"]
doi:10.7717/peerj.2164
211 downloads
567 views

Abnormal behaviors in captive animals are generally defined as behaviors that are atypical for the species and are often considered to be indicators of poor welfare. Although some abnormal behaviors have been empirically linked to conditions related to elevated...

["Animal Behavior","Zoology"]
doi:10.7717/peerj.2225
40 downloads
410 views

Behavioral flexibility is considered important for a species to adapt to environmental change. However, it is unclear how behavioral flexibility works: it relates to problem solving ability and speed in unpredictable ways, which leaves an open question of whether...

["Animal Behavior","Zoology"]
doi:10.7717/peerj.2215
55 downloads
354 views

The reaction of wildlife to humans is known to differ with surroundings. In urban environments that provide suitable habitats for breeding birds, animals adapt to humans and their response is accordingly altered. This study examined the nest defense behavior of...

["Animal Behavior","Ecology","Zoology","Coupled Natural and Human Systems"]
doi:10.7717/peerj.2070
273 downloads
2,151 views

Here we describe three fossil feathers from the Early Cretaceous Santana Formation of the Araripe Basin, Brazil. Feathers are the most complex multiform vertebrate integuments; they perform different functions, occurring in both avian and non-avian dinosaurs. Despite...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.1916
75 downloads
515 views

Parasites significantly influence food webs and ecosystems and occur all over the world in almost every animal group. Within crustaceans there are numerous examples of ectoparasites; for example, representatives of the isopod group Cymothoidae. These obligatory...

["Aquaculture, Fisheries and Fish Science","Parasitology","Zoology"]
doi:10.7717/peerj.2188
57 downloads
435 views

Membership of the group is a balance between the benefits associated with group living and the cost of socially constrained growth and breeding opportunities, but the costs and benefits are seldom examined. The goal of the present study was to explore the trade-offs...

["Animal Behavior","Aquaculture, Fisheries and Fish Science","Ecology","Marine Biology","Zoology"]
doi:10.7717/peerj.2198
45 downloads
314 views

Background. Although the trot is described as a diagonal gait, contacts of the diagonal pairs of hooves are not usually perfectly synchronized. Although subtle, the timing dissociation between contacts of each diagonal pair could have consequences on gait dynamics...

["Zoology","Anatomy and Physiology","Kinesiology"]
doi:10.7717/peerj.2190
73 downloads
537 views

An important trend in the early evolution of mammals was the shift from a sprawling stance, whereby the legs are held in a more abducted position, to a parasagittal one, in which the legs extend more downward. After that transition, many mammals shifted from a...

["Evolutionary Studies","Zoology"]
doi:10.7717/peerj.2131
83 downloads
1,130 views

Up to a billion birds die per year in North America as a result of striking windows. Both transparent and reflective glass panes are a cause for concern, misleading birds by either acting as invisible, impenetrable barriers to desired resources, or reflecting those...

["Animal Behavior","Conservation Biology","Zoology"]
doi:10.7717/peerj.2170
74 downloads
463 views

Spatio-temporal changes in genetic structure among populations provide crucial information on the dynamics of secondary spread for introduced marine species. However, temporal components have rarely been taken into consideration when studying the population genetics...

["Ecology","Marine Biology","Zoology"]
doi:10.7717/peerj.2158
45 downloads
266 views

Determining the key factors affecting the reproductive success of nesting birds is crucial in order to better understand the population dynamics of endangered species and to introduce effective conservation programmes for them. Inhabiting a variety of wetland habitats,...

["Animal Behavior","Conservation Biology","Ecology","Zoology"]
doi:10.7717/peerj.2047
116 downloads
385 views

Background: The Atlantic Forest is globally one of the priority ecoregions for biodiversity conservation. In Argentina, it is represented by the Paranense Forest, which covers a vast area of Misiones Province between the Paraná and Uruguay rivers. The Uruguay River...

["Biodiversity","Conservation Biology","Genetics","Taxonomy","Zoology"]
doi:10.7717/peerj.2138

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