Results 11 to 20 of about 26,181 (268)

Costs of Reproduction in Breeding Female Mallards: Predation Risk during Incubation Drives Annual Mortality

Avian Conservation and Ecology, 2012
The effort expended on reproduction may entail future costs, such as reduced survival or fecundity, and these costs can have an important influence on life-history optimization.
Todd W. Arnold, Erin A. Roche, James H. Devries, David W. Howerter   +3 more
doaj   +1 more source

Analysis of the Alabio Ducks Rearing Business with Herbal Medicine Supplementation in Lebak Swamplands of South Kalimantan [PDF]

E3S Web of Conferences, 2023
Ducks are one of the sources of income for farmers in the Lebak swamp area, South Kalimantan. Duck rearing is one of the prospective ducks farming activities.
Siti Rohaeni Eni, Kurniawan Harun, Lesmayati Susi, Ayu Saptati Ratna, Miraya Nila   +4 more
doaj   +1 more source

Distribution of priority grassland bird habitats in the Prairie Pothole Region of Canada

Avian Conservation and Ecology, 2018
Grassland ecosystems and the species that rely on them are one of the most urgent habitat conservation concerns in North America. Fundamental to any landscape conservation efforts is the identification of priority habitats to help target management ...
Bradley C. Fedy, James H. Devries, David W. Howerter, Jeffrey R. Row   +3 more
doaj   +1 more source

Source or sink? Meta-analysis reveals diverging controls of phosphorus retention and release in restored and constructed wetlands

Environmental Research Letters, 2023
Wetland restoration is a popular nutrient management strategy for improving water quality in agricultural catchments. However, a wetland’s ability to retain phosphorus is highly variable and wetlands can sometimes be a source of phosphorus to downstream ...
Emily A Ury, Puvaanah Arrumugam, Ellen R Herbert, Pascal Badiou, Bryan Page, Nandita B Basu   +5 more
doaj   +1 more source

Production potential of the first generation of selected Pitalah and Bayang ducks as a community economic resource in West Sumatra

Journal of Advanced Veterinary and Animal Research, 2023
Objectives: This study aimed to measure the production potential of selected Pitalah and Bayang male ducks and their first generation. Materials and Methods: A total of 100 Pitalah and 100 Bayang 1-day-old ducks (40 males, 60 females) were obtained from ...
Zasmeli Suhaemi, Sabrina Sabrina, Nita Yessirita, Nelzi Fati, Febriani Febriani, Burhanudin Malik   +5 more
doaj   +1 more source

Agricultural destruction of Northern Pintail nests on cropland in prairie Canada

Avian Conservation and Ecology, 2018
It has been postulated that the decline of the Northern Pintail (Anas acuta) population is related to the propensity of female pintails to nest in cropland.
David C. Duncan, James H. Devries
doaj   +1 more source

Whole-genome resequencing provides insights into the population structure and domestication signatures of ducks in eastern China

BMC Genomics, 2021
Background Duck is an ancient domesticated animal with high economic value, used for its meat, eggs, and feathers. However, the origin of indigenous Chinese ducks remains elusive.
Peishi Feng, Tao Zeng, Hua Yang, Guohong Chen, Jinping Du, Li Chen, Junda Shen, Zhenrong Tao, Ping Wang, Lin Yang, Lizhi Lu   +10 more
doaj   +1 more source

If It Looks Like a Duck, Swims Like a Duck, and Quacks Like a Duck—Does It Have to Be a Duck?

PLOS Neglected Tropical Diseases, 2016
[Extract] Case Presentation On 2nd July 2013, a 29-year-old HIV-positive woman presented herself to the outpatient clinic at the Infectious Diseases Institute in Kampala, Uganda. Her weight had decreased from 46 kg to 42 kg in the past few weeks. In addition, she complained about abdominal pain, diarrhea, vomiting, and evening fevers during the week
Nalwanga, Damalie, Henning, Lars
openaire   +5 more sources

Local, Short-term Effects of Forest Harvesting on Breeding Waterfowl and Common Loon in Forest-Dominated Landscapes of Quebec

Avian Conservation and Ecology, 2007
Northern forests are major breeding habitats for several waterfowl and other waterbird species. In Quebec, as in many other areas within the boreal region, clear-cut logging is an important human activity, and it is likely to affect ground- and cavity ...
Louis-Vincent Lemelin, Louis Imbeau, Marcel Darveau, Daniel Bordage   +3 more
doaj   +1 more source

Contrasting Effects of Cattle Grazing Intensity on Upland-Nesting Duck Production at Nest and Field Scales in the Aspen Parkland, Canada

Avian Conservation and Ecology, 2008
The Aspen Parkland of Canada is one of the most important breeding areas for temperate nesting ducks in North America. The region is dominated by agricultural land use, with approximately 9.3 million ha in pasture land for cattle grazing.
Jeffrey M. Warren, Jay Rotella, Jonathan E. Thompson   +2 more
doaj   +1 more source