Results 151 to 160 of about 217,003 (367)

Fearfulness of geese and swans on cropland in winter: a multi‐species flight initiation distance approach

open access: yesWildlife Biology, EarlyView.
Geese and swans are focal species in conservation and in management aimed at reducing crop damage. In the former disturbance should be minimized, and in the latter it is important to know how different species react to scaring activities. Previous research about trade‐off between predation risk and foraging in birds often uses ‘flight initiation ...
Johan Elmberg   +4 more
wiley   +1 more source

Precipitation and female experience are major determinants of the breeding performance of Canarian houbara bustards

open access: yesWildlife Biology, EarlyView.
Precipitation is one of the main triggers of reproduction in desert‐breeding birds. The unpredictability of rainfall patterns in arid environments has led species to adapt their breeding effort to episodes of abundant food after rainfall. The response is not the same for all individuals in a population, and may vary especially with the age and ...
Juan C. Alonso   +3 more
wiley   +1 more source

Effects of pathogen presence on the seed quality of different alfalfa cultivars [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2016
Owing to its characteristics, alfalfa (Medicago sativa L.) is the most important forage plant in our country. The great importance of alfalfa is reflected in the production of high-quality fodder and alfalfa seeds, which are a valuable and competitive ...
Štrbanović Ratibor   +6 more
doaj  

Survival and Longevity of \u3ci\u3eOtiorhynchus Ligustici\u3c/i\u3e (Coleoptera: Curculionidae) in Alfalfa Hay Bales in Eastern Ontario [PDF]

open access: yes, 2017
The alfalfa snout beetle, Otiorhynchus ligustici, a pest of European origin, has recently spread into mainland Ontario. A two-year study showed that dispersing adults incorporated into bales of alfalfa during harvest can survive therein for up to 46 days
Bereza, K, Harcourt, D. G
core   +1 more source

Morphological and Molecular Characterization of Eimeria saudiensis From Arabian Oryx (Oryx leucoryx) Held in Captivity in the Sultanate of Oman 阿曼苏丹国圈养阿拉伯羚羊 (Oryx leucoryx) 体内沙特艾美球虫 (Eimeria saudiensis) 的形态学与分子特征

open access: yesWildlife Letters, EarlyView.
Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi   +7 more
wiley   +1 more source

Systems management strategies for increasing alfalfa use in warm‐humid regions

open access: yesGrassland Research
Alfalfa use (Medicago sativa L.; “lucerne”) in warm, humid regions of the world represents a potential area of expansion for the alfalfa industry. The objective of this review paper is to demonstrate how alfalfa forage breeding and systems research ...
Jennifer J. Tucker   +4 more
doaj   +1 more source

Application of different Polyethylen glycole concentrations and evaluation of different methods for germination of alfalfa [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2014
This paper presents the germination three cultivars of alfalfa using different concentrations of PEG-6000 (Polyethylene glycol) and control. The aim of this study was to determine the tolerance of alfalfa under drought stress effects and the choice of ...
Štrbanović Ratibor   +6 more
doaj  

Relationship of red and photographic infrared spectral radiances to alfalfa biomass, forage water content, percentage canopy cover, and severity of drought stress [PDF]

open access: yes
Red and photographic infrared spectral data were collected using a handheld radiometer for two cuttings of alfalfa. Significant linear and non-linear correlation coefficients were found between the spectral variables and plant height, biomass, forage ...
Elgin, J. H., Jr.   +2 more
core   +1 more source

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