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  1. Research

    Geographical and temporal variation in environmental conditions affects nestling growth but not immune function in a year-round breeding equatorial lark

    Variation in growth and immune function within and among populations is often associated with specific environmental conditions. We compared growth and immune function in nestlings of year-round breeding equat...

    Henry K. Ndithia, Samuel N. Bakari, Kevin D. Matson, Muchane Muchai and B. Irene Tieleman

    Frontiers in Zoology 2017 14:28

    Published on: 26 May 2017

  2. Research

    Worker reproduction of the invasive yellow crazy ant Anoplolepis gracilipes

    Reproductive division of labor is one of the key features of social insects. Queens are adapted for reproduction while workers are adapted for foraging and colony maintenance. In many species, however, workers...

    Ching-Chen Lee, Hirotaka Nakao, Shu-Ping Tseng, Hung-Wei Hsu, Gwo-Li Lin, Jia-Wei Tay, Johan Billen, Fuminori Ito, Chow-Yang Lee, Chung-Chi Lin and Chin-Cheng (Scotty) Yang

    Frontiers in Zoology 2017 14:24

    Published on: 8 May 2017

  3. Research

    Morphogenesis of honeybee hypopharyngeal gland during pupal development

    The hypopharyngeal gland of worker bees contributes to the production of the royal jelly fed to queens and larvae. The gland consists of thousands of two-cell units that are composed of a secretory cell and a ...

    Sascha Peter Klose, Daniel Rolke and Otto Baumann

    Frontiers in Zoology 2017 14:22

    Published on: 20 April 2017

  4. Research

    Mitochondrial acclimation potential to ocean acidification and warming of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua)

    Ocean acidification and warming are happening fast in the Arctic but little is known about the effects of ocean acidification and warming on the physiological performance and survival of Arctic fish.

    Elettra Leo, Kristina L. Kunz, Matthias Schmidt, Daniela Storch, Hans-O. Pörtner and Felix C. Mark

    Frontiers in Zoology 2017 14:21

    Published on: 14 April 2017

  5. Research

    An integrative systematic framework helps to reconstruct skeletal evolution of glass sponges (Porifera, Hexactinellida)

    Glass sponges (Class Hexactinellida) are important components of deep-sea ecosystems and are of interest from geological and materials science perspectives. The reconstruction of their phylogeny with molecular...

    Martin Dohrmann, Christopher Kelley, Michelle Kelly, Andrzej Pisera, John N. A. Hooper and Henry M. Reiswig

    Frontiers in Zoology 2017 14:18

    Published on: 21 March 2017

  6. Research

    Flexible reaction norms to environmental variables along the migration route and the significance of stopover duration for total speed of migration in a songbird migrant

    Predicting the consequences of continuing anthropogenic changes in the environment for migratory behaviours such as phenology remains a major challenge. Predictions remain particularly difficult, because our k...

    Heiko Schmaljohann, Simeon Lisovski and Franz Bairlein

    Frontiers in Zoology 2017 14:17

    Published on: 20 March 2017

  7. Research

    Optic-nerve-transmitted eyeshine, a new type of light emission from fish eyes

    Most animal eyes feature an opaque pigmented eyecup to assure that light can enter from one direction only. We challenge this dogma by describing a previously unknown form of eyeshine resulting from light that...

    Roland Fritsch, Jeremy F. P. Ullmann, Pierre-Paul Bitton, Shaun P. Collin and Nico K. Michiels

    Frontiers in Zoology 2017 14:14

    Published on: 27 February 2017

  8. Research

    Group or ungroup – moose behavioural response to recolonization of wolves

    Predation risk is a primary motivator for prey to congregate in larger groups. A large group can be beneficial to detect predators, share predation risk among individuals and cause confusion for an attacking p...

    Johan Månsson, Marie-Caroline Prima, Kerry L. Nicholson, Camilla Wikenros and Håkan Sand

    Frontiers in Zoology 2017 14:10

    Published on: 17 February 2017

  9. Research

    Mate choice for major histocompatibility complex complementarity in a strictly monogamous bird, the grey partridge (Perdix perdix)

    Sexual selection has been hypothesised as favouring mate choice resulting in production of viable offspring with genotypes providing high pathogen resistance. Specific pathogen recognition is mediated by genes...

    Dana Rymešová, Tereza Králová, Marta Promerová, Josef Bryja, Oldřich Tomášek, Jana Svobodová, Petr Šmilauer, Miroslav Šálek and Tomáš Albrecht

    Frontiers in Zoology 2017 14:9

    Published on: 16 February 2017

  10. Research

    Perception of emotional valence in horse whinnies

    Non-human animals often produce different types of vocalisations in negative and positive contexts (i.e. different valence), similar to humans, in which crying is associated with negative emotions and laughter...

    Elodie F. Briefer, Roi Mandel, Anne-Laure Maigrot, Sabrina Briefer Freymond, Iris Bachmann and Edna Hillmann

    Frontiers in Zoology 2017 14:8

    Published on: 11 February 2017

  11. Research

    Effects of the social environment during adolescence on the development of social behaviour, hormones and morphology in male zebra finches (Taeniopygia guttata)

    Individual differences in behaviour are widespread in the animal kingdom and often influenced by the size or composition of the social group during early development. In many vertebrates the effects of social ...

    Stefanie Bölting and Nikolaus von Engelhardt

    Frontiers in Zoology 2017 14:5

    Published on: 25 January 2017

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