Peer-reviewed Articles

24 downloads
154 views

As a foundation for understanding the diet of African savanna elephants (Loxodonta africana), adult bulls and cows were observed over an annual cycle to determine whether harvesting (Pt), chewing (Ct) and handling times (Ht) differed across food types and harvesting...

["Animal Behavior","Conservation Biology","Veterinary Medicine","Zoology"]
doi:10.7717/peerj.2469
52 downloads
708 views

The skull of leporids (rabbits and hares) is highly transformed, typified by pronounced arching of the dorsal skull and ventral flexion of the facial region (i.e., facial tilt). Previous studies show that locomotor behavior influences aspects of cranial shape in...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.2453
123 downloads
696 views

The Ziphiidae (beaked whales) represent a large group of open-ocean odontocetes (toothed cetaceans), whose elusive and deep diving behavior prevents direct observation in their natural habitat. Despite their generally large body size, broad geographical distribution,...

["Evolutionary Studies","Marine Biology","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.2479
20 downloads
127 views

Spermatological characteristics of species from two monorchiid genera, Opisthomonorchis and Paramonorcheides, have been investigated, for the first time, by means of transmission electron microscopy. The ultrastructural study reveals that the mature spermatozoon...

["Cell Biology","Parasitology","Zoology"]
doi:10.7717/peerj.2488
43 downloads
157 views

African clawed frogs (Xenopus laevis) are often referred to as ‘purely aquatic’ but there are many publications which suggest extensive overland movements. Previous reviews which considered the topic have not answered the following questions: (1) is there evidence...

["Animal Behavior","Aquaculture, Fisheries and Fish Science","Ecology","Zoology"]
doi:10.7717/peerj.2474
26 downloads
111 views

Rapid anthropogenic land use change threatens the primary habitat of the Chestnut short-tailed bat (Carollia castanea) throughout much of its range. Information on population genetic structure can inform management strategies for this widespread frugivorous bat,...

["Conservation Biology","Evolutionary Studies","Zoology"]
doi:10.7717/peerj.2465
46 downloads
210 views

Background A wide range of microorganisms inhabit animal skin. This microbial community (microbiome) plays an important role in host defense against pathogens and disease. Bats (Chiroptera: Mammalia) are an ecologically and evolutionarily diversified group with...

["Ecology","Microbiology","Zoology"]
doi:10.7717/peerj.2430
45 downloads
187 views

A strongly ossified and rigid skull roof, which prevents parietal kinesis, has been reported for the adults of all amphibian clades. Our μ-CT investigations revealed that the Buresch’s newt (Triturus ivanbureschi) possess a peculiar cranial construction. In addition...

["Animal Behavior","Biodiversity","Bioengineering","Taxonomy","Zoology"]
doi:10.7717/peerj.2392
40 downloads
834 views

Coastal birds are critical ecosystem constituents on sandy shores, yet are threatened by depressed reproductive success resulting from direct and indirect anthropogenic and natural pressures. Few studies examine clutch fate across the wide range of environments...

["Animal Behavior","Conservation Biology","Ecology","Zoology"]
doi:10.7717/peerj.2460
158 downloads
1,233 views

The evolution of complexly folded septa in ammonoids has long been a controversial topic. Explanations of the function of these folded septa can be divided into physiological and mechanical hypotheses with the mechanical functions tending to find widespread support....

["Computational Biology","Marine Biology","Paleontology","Zoology"]
doi:10.7717/peerj.2434
44 downloads
239 views

Deforestation and changes in land use have reduced the tropical dry forest to isolated forest patches in northwestern Costa Rica. We examined the effect of patch area and length of the dry season on nestedness of the entire avian community, forest fragment assemblages,...

["Biodiversity","Biogeography","Conservation Biology","Ecology","Zoology"]
doi:10.7717/peerj.2422
58 downloads
232 views

This experiment was conducted to determine the bioavailability of D-methionine (Met) relative to L-Met for nursery pigs using the slope-ratio assay. A total of 50 crossbred barrows with an initial BW of 13.5 kg (SD = 1.0) were used in an N balance study. A Met-deficient...

["Agricultural Science","Animal Behavior","Veterinary Medicine","Zoology","Nutrition"]
doi:10.7717/peerj.2368
102 downloads
407 views

Background Faunal change is a basic and fundamental element in ecology, biogeography, and conservation biology, yet vanishingly few detailed studies have documented such changes rigorously over decadal time scales. This study responds to that gap in knowledge,...

["Biodiversity","Biogeography","Conservation Biology","Zoology"]
doi:10.7717/peerj.2362
37 downloads
354 views

For most species the timing of extinction events is uncertain, occurring sometime after the last sighting. However, the sightings themselves may also be uncertain. Recently a number of methods have been developed that incorporate sighting uncertainty in the inference...

["Biodiversity","Conservation Biology","Zoology"]
doi:10.7717/peerj.2426
62 downloads
241 views

Parrotfishes (family Labridae: Scarini) are regarded to have important roles for maintaining the ecosystem balance in coral reefs due to their removal of organic matter and calcic substrates by grazing. The purpose of the present study was to clarify the interspecific...

["Ecology","Marine Biology","Zoology"]
doi:10.7717/peerj.2425

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