Results 231 to 240 of about 380,711 (350)

Female Starlings With Experimentally Impaired Pre‐Laying Condition Produce Smaller But Vitamin A Richer Eggs

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
We experimentally impaired the pre‐laying condition of female starlings by clipping two flight feathers per wing at the beginning of the breeding season, before egg laying. Impaired females laid the same number of eggs as control females, but smaller, and with higher levels of yolk vitamin A.
S. Casquero, I. Redondo, E. Gómez‐Llanos, A. Á. Romero‐Haro, D. Gil, L. Pérez‐Rodríguez   +5 more
wiley   +1 more source

Bird migration on the edge: Experimental manipulation of corticosterone advances departure dates. [PDF]

Ecology
Hoarau M, Dulude-de Broin F, LeTourneux F, Angelier F, Gauthier-Bouchard M, Martin MC, Kato A, Lefebvre J, Thomas PJ, Williams CK, Bêty J, Legagneux P.   +11 more
europepmc   +1 more source

Potential Spectral Tuning of the Tapetum Lucidum in a Broadly Distributed Ungulate

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The tapetum lucidum, a biological reflector system found in the eyes of many vertebrate species, enhances visual sensitivity in low light conditions by reflecting light back through the retina. The structure of the ungulate tapetum fibrosum is unique, and its reflectance varies temporally in reindeer (Rangifer tarandus).
Blaise A. Newman, Billy R. Hammond Jr., Gino J. D'Angelo   +2 more
wiley   +1 more source

Concrete consequences: construction on prime honey bee habitat doubles foraging distances. [PDF]

Biol Open
Ostrom RBJ, Couvillon MJ, Ohlinger BD, Schürch R.   +3 more
europepmc   +1 more source

The sorghum hand book: a treatise on the sorgho and imphee sugar canes, their history, culture and manufacture into syrup and sugar, and value for food and forage

, 1888
David W. Blymyer
openalex   +2 more sources

Upscaling forager mobility and broadening forager relations

, 2022
Thomas Widlok, Stephan Henn
openaire   +1 more source

Embryogenesis in Myrmicine Ants Combines Features of Short Germ‐Band Development With a Progressive Mode of Segmentation

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Chi‐Chun Fang, Arjuna Rajakumar, Andrew Kenny, Ulrich G. Mueller, Ehab Abouheif, David Stein   +5 more
wiley   +1 more source

Ecological Correlates of Ecological Specialization of Avian Communities in University Campuses of China. [PDF]

Biology (Basel)
Shuai LY, Meng D, Ma WL, Bai JW, Luo Y, Luo YX, Gao ZC, Zhu H, Long ZQ.   +8 more
europepmc   +1 more source

Colcord's system of preserving green forage without heat or fermentation by the use of the silo governor

, 1889
Samuel Marshall Colcord
openalex   +2 more sources

Microhabitat Segregation of Co-Existing Nightjar Species in The Gambia. [PDF]

Ecol Evol
García-Carrasco JM, Barlow CR, Camacho C.   +2 more
europepmc   +1 more source