Results 81 to 90 of about 1,197,949 (348)

Contribution of organic farming to conserving and improving biodiversity in Germany – the example avi-fauna [PDF]

, 2006
Although it is the aim of organic farming to increase biodiversity, there is little knowledge about the impact of organic farming on birds. From 2001 to 2003, the number of breeding birds was recorded annually on the organic experimental farm of the ...
Haneklaus, Silvia, Hötker, Hermann, Jeromin, Knut, Paulsen, Hans-Marten, Rahmann, Gerold, Schnug, Ewald, Schrader, Stefan   +6 more
core  

Genetic Control of Tissue Remodeling by a Non‐Coding SNP in ITGA8 Explains Carotenoid‐Based Color Polymorphism in Marine Mollusks

Advanced Science, EarlyView.
In this study, the orange‐muscle giant abalone (Haliotis gigantea) is used as a model to identify a non‐coding SNP that disrupts the interaction between ITGA8 pre‐mRNA and the splicing factor ILF2, leading to altered ITGA8 splicing. These splicing changes promote carotenoid accumulation in abalone muscle through the regulation of tissue remodeling ...
Xiaohui Wei, Wenzhu Peng, Zekun Huang, Bingye Yang, Yiyu Wu, Minzhen Han, Yi Wang, Bingling Peng, Guosheng Hu, Jiawei Hong, Guijia Liu, Linwei Nie, Yang Gan, Miaoqin Huang, Xuan Luo, Weiwei You, Wen Liu, Caihuan Ke   +17 more
wiley   +1 more source

Brood patch and sex-ratio observations indicate breeding provenance and timing in New Zealand storm petrel (Fregetta maoriana) [PDF]

, 2013
We used measurements of brood patch and moult status to estimate the breeding phenology of New Zealand Storm-Petrel, using birds caught at sea within the Hauraki Gulf Marine Park near Auckland, New Zealand.
Fitzgerald, N. B., Gaskin, C. P., Imber, M. J., Ismar, Stefanie M. H., Landers, T. J., Rayner, M. J., Robertson, B., Scofield, R. P., Stephenson, B.   +8 more
core  

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Phenotypic constraints at the top of the world: an Arctic songbird faces the cumulative cost of maintaining a winter-like phenotype during breeding

Frontiers in Ecology and Evolution
Among birds, several body composition traits typically decrease in size or mass during breeding likely as a result of competing demands during this critical life history stage. However, a recent outdoor captive study in an Arctic-breeding cold-specialist
Audrey Le Pogam, Audrey Le Pogam, Ryan S. O’Connor, Ryan S. O’Connor, Oliver P. Love, Kevin G. Young, Justine Drolet, Justine Drolet, Lyette Régimbald, Gabrielle Roy, Francis Robitaille, Dominique Berteaux, Dominique Berteaux, Andrew Tam, François Vézina, François Vézina   +15 more
doaj   +1 more source

Scientific Opinion on the safety and efficacy of Natugrain® TS (endo‐1, 4‐beta‐xylanase and endo‐1, 4‐beta‐glucanase) as a feed additive for chickens reared for laying, turkeys for breeding purposes, turkeys reared for breeding, other minor avian species (other than ducks) and ornamental birds

EFSA Journal, 2011
The safety of the product was previously established in chickens and turkeys for fattening, and for laying hens. In the view of the Panel the conclusions apply to those reared for laying/breeding and for breeding hens.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

BIRDS AND SUSTAINABLE MANAGEMENT IN MEDITERRANEAN RIPARIAN AREAS: Bird studies in the RIPIDURABLE project [PDF]

, 2010
RIPIDURABLE is an INTERREG IIIC European Program involving 10 partners from Portugal, Spain, France and Greece. Scientists, technicians and local/regional authorities worked together to integrate knowledge, knowhow and practice, towards a rational ...
Crochet, Pierre-André, Dias, Paula, Dincuff, Eric, Faivre, Bruno, Frochot, Bernard, Godinho, Carlos, Mendes, Ana, Perret, Philipe, Rabaça, João E., Roché, Jean, Roque, Inês, Vaz, Alexandre   +11 more
core  

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

Advanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang, Ying Sun, Liqun Ye, Jichi Liu, Hui Li, Yang Fu, Fengzhan Sun, Jieshan Qiu, Chang Yu, Tianyi Ma   +9 more
wiley   +1 more source

The sub-annual breeding cycle of a tropical seabird.

PLoS ONE, 2014
Breeding periodicity allows organisms to synchronise breeding attempts with the most favourable ecological conditions under which to raise offspring. For most animal species, ecological conditions vary seasonally and usually impose an annual breeding ...
S James Reynolds, Graham R Martin, Alistair Dawson, Colin P Wearn, B John Hughes   +4 more
doaj   +1 more source

Validating the use of intrinsic markers in body feathers to identify inter-individual differences in non-breeding areas of northern fulmars [PDF]

, 2016
Acknowledgments We thank Claire Deacon, Gareth Norton and Andrea Raab for help with laboratory work at the University of Aberdeen, and Barry Thornton and Gillian Martin for running stable isotope analysis at the James Hutton Institute.
Graham, Isla M., Meharg, Andrew A., Quinn, Lucy R., Thompson, Paul M., van Franeker, Jan A.   +4 more
core   +2 more sources