Delineating species along shifting shorelines: Tropheus (Teleostei, Cichlidae) from the southern subbasin of Lake Tanganyika
Species delineation is particularly challenging in taxa with substantial intra-specific variation. In systematic studies of fishes, meristics and linear measurements that describe shape are often used to delin... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - November 13, 2018 Category: Zoology Authors: Maarten Van Steenberge, Joost Andr é Maria Raeymaekers, Pascal István Hablützel, Maarten Pieterjan Maria Vanhove, Stephan Koblmüller and Jos Snoeks Tags: Research Source Type: research

The seasonal sensitivity of brown bear denning phenology in response to climatic variability
For brown bears (Ursus arctos), hibernation is a critical part of the annual life cycle because energy savings during hibernation can be crucial for overwintering, and females give birth to cubs at that time. For... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - November 1, 2018 Category: Zoology Authors: M M Delgado, G Tikhonov, E Meyke, M Babushkin, T Bespalova, S Bondarchuk, A Esengeldenova, I Fedchenko, Y Kalinkin, A Knorre, G Kosenkov, V Kozsheechkin, A Kuznetsov, E Larin, D Mirsaitov, I Prokosheva & hellip; Tags: Research Source Type: research

Seasonality at the equator: isotope signatures and hormonal correlates of molt phenology in a non-migratory Amazonian songbird
Birds, across their annual cycle, progress through sequences of life-history stages such as reproduction and molt. The mechanisms that control annual avian itineraries involve endocrine responses triggered by ... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - October 29, 2018 Category: Zoology Authors: Rene Quispe, Elizabeth Yohannes and Manfred Gahr Tags: Research Source Type: research

Evolution of the facial musculature in basal ray-finned fishes
The facial musculature is a remarkable anatomical complex involved in vital activities of fishes, such as food capture and gill ventilation. The evolution of the facial muscles is largely unknown in most major... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - October 25, 2018 Category: Zoology Authors: Al éssio Datovo and Pedro P Rizzato Tags: Research Source Type: research

A consistent long-lasting pattern of spatial variation in egg size and shape in blue tits (Cyanistes caeruleus)
Interspecies variation in avian egg shape and size is understandable in terms of adaptation, allometry and phylogeny. Within-species variation in egg properties influences offspring fitness and can be explaine... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - October 3, 2018 Category: Zoology Authors: Miros ława Bańbura, Michał Glądalski, Adam Kaliński, Marcin Markowski, Joanna Skwarska, Jarosław Wawrzyniak, Piotr Zieliński and Jerzy Bańbura Tags: Research Source Type: research

Estimation of pack density in grey wolf (Canis lupus) by applying spatially explicit capture-recapture models to camera trap data supported by genetic monitoring
Density estimation is a key issue in wildlife management but is particularly challenging and labour-intensive for elusive species. Recently developed approaches based on remotely collected data and capture-rec... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - October 3, 2018 Category: Zoology Authors: Luca Mattioli, Antonio Canu, Daniela Passilongo, Massimo Scandura and Marco Apollonio Tags: Research Source Type: research

The modular organization of roe deer (Capreolus capreolus) body during ontogeny: the effects of sex and habitat
As a small artiodactyl, the roe deer (Capreolus capreolus L.) is characterized by biological plasticity and great adaptability demonstrated by their survival under a wide variety of environmental conditions. In o... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - September 27, 2018 Category: Zoology Authors: Svetlana Milo šević-Zlatanović, Tanja Vukov, Srđan Stamenković, Marija Jovanović and Nataša Tomašević Kolarov Tags: Research Source Type: research

Convergent evolution of the ladder-like ventral nerve cord in Annelida
A median, segmented, annelid nerve cord has repeatedly been compared to the arthropod and vertebrate nerve cords and became the most used textbook representation of the annelid nervous system. Recent phylogeno... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - September 27, 2018 Category: Zoology Authors: Conrad Helm, Patrick Beckers, Thomas Bartolomaeus, Stephan H. Drukewitz, Ioannis Kourtesis, Anne Weigert, G ünter Purschke, Katrine Worsaae, Torsten H. Struck and Christoph Bleidorn Tags: Research Source Type: research

Aging and sex affect soluble alpha klotho levels in bonobos and chimpanzees
Throughout life, physiological homeostasis is challenged and the capacity to cope with such challenges declines with increasing age. In many species, sex differences exist in life expectancy. Sex-specific diff... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - September 19, 2018 Category: Zoology Authors: V. Behringer, J. M. G. Stevens, T. Deschner, R. Sonnweber and G. Hohmann Tags: Research Source Type: research

Offspring dependence on parental care and the role of parental transfer of oral fluids in burying beetles
Immature stages of many animals can forage and feed on their own, whereas others depend on their parents ’ assistance to obtain or process food. But how does such dependency evolve, and which offspring and pare... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 29, 2018 Category: Zoology Authors: Alexandra Capodeanu-N ägler, Madlen A. Prang, Stephen T. Trumbo, Heiko Vogel, Anne-Katrin Eggert, Scott K. Sakaluk and Sandra Steiger Tags: Research Source Type: research

Timing matters: traffic noise accelerates telomere loss rate differently across developmental stages
Noise pollution is one of the leading environmental health risks for humans, linked to a myriad of stress-related health problems. Yet little is known about the long-term effects of noise on the health and fit... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 28, 2018 Category: Zoology Authors: A. M. Dorado-Correa, S.A. Zollinger, B. Heidinger and H. Brumm Tags: Research Source Type: research

Tree frog attachment: mechanisms, challenges, and perspectives
Tree frogs have the remarkable ability to attach to smooth, rough, dry, and wet surfaces using their versatile toe pads. Tree frog attachment involves the secretion of mucus into the pad-substrate gap, requiri... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 23, 2018 Category: Zoology Authors: Julian K. A. Langowski, Dimitra Dodou, Marleen Kamperman and Johan L. van Leeuwen Tags: Review Source Type: research

NGS barcoding reveals high resistance of a hyperdiverse chironomid (Diptera) swamp fauna against invasion from adjacent freshwater reservoirs
Macroinvertebrates such as non-biting midges (Chironomidae: Diptera) are important components of freshwater ecosystems. However, they are often neglected in biodiversity and conservation research because inver... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 14, 2018 Category: Zoology Authors: Bilgenur Balo ğlu, Esther Clews and Rudolf Meier Tags: Research Source Type: research

Skeletomuscular adaptations of head and legs of Melissotarsus ants for tunnelling through living wood
While thousands of ant species are arboreal, very few are able to chew and tunnel through living wood. Ants of the genus Melissotarsus (subfamily Myrmicinae) inhabit tunnel systems excavated under the bark of liv... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 14, 2018 Category: Zoology Authors: Adam Khalife, Roberto A. Keller, Johan Billen, Francisco Hita Garcia, Evan P. Economo and Christian Peeters Tags: Research Source Type: research

Neuromuscular transmitter candidates of a centipede (Lithobius forficatus, Chilopoda)
The neuromuscular junction is the chemical synapse where motor neurons communicate with skeletal muscle fibers. Whereas vertebrates and many invertebrates use acetylcholine as transmitter at the neuromuscular ... (Source: Frontiers in Zoology)
Source: Frontiers in Zoology - August 1, 2018 Category: Zoology Authors: Hendrik Langeloh, Hannah Wasser, Nicole Richter, Gerd Bicker and Michael Stern Tags: Research Source Type: research