Results 61 to 70 of about 487 (213)

The Effect of Cooled Perches on Immunological Parameters of Caged White Leghorn Hens during the Hot Summer Months.

PLoS ONE, 2015
The objective of this study was to determine if thermally cooled perches improve hen immunity during hot summer. White Leghorn pullets at 16 week of age were randomly assigned to 18 cages of 3 banks at 9 hens per cage.
Rebecca A Strong, Patricia Y Hester, Susan D Eicher, Jiaying Hu, Heng-Wei Cheng   +4 more
doaj   +1 more source

Perched groundwater simulation using the picard iteration‐based always active cell method

River, EarlyView.
Abstract Aquitards within the vadose zone impede vertical infiltration, leading to the formation of saturated perched groundwater. Perched groundwater flows laterally along aquitards, resulting in a heterogeneous spatial distribution of groundwater recharge that significantly influences groundwater formation and evolution.
Wen Lu, Chuiyu Lu, Weichen Wu, Zhenjiang Wu, Wenjia Zhang, Qingyan Sun, Chu Wu, Lingjia Yan, Meng Ma, Rong Liu   +9 more
wiley   +1 more source

CONTRIBUIÇÃO DOS POLEIROS ARTIFICIAIS NA DISPERSÃO DE SEMENTES E SUA APLICAÇÃO NA RESTAURAÇÃO FLORESTAL

Ciência Florestal, 2014
The use of artificial perches is an efficient technique to forest restoration. We aimed to (1) evaluate the effect of the presence of artificial perches on the number of forest seeds deposited on seed fall collectors, (2) identify the seed dispersal ...
Cristiano Roberto Dias, Fabiana Umetsu, Tiago Boer Breier   +2 more
doaj  

Bridging Efficiency Gaps in Rice Production: A Primal System Analysis of Technical and Allocative Constraints in Bangladesh

Sustainable Development, EarlyView.
ABSTRACT Declining natural resources, rising production costs, and diminishing returns from input‐intensive practices threaten the sustainability of smallholder rice systems in Bangladesh. Using a primal system approach and survey data from 1869 rice‐producing households, this study evaluates technical and allocative inefficiency across major agro ...
Limon Deb, Di Zeng, Rida Akzar, Md. Abdus Salam   +3 more
wiley   +1 more source

Making the most of life: environmental choice during rearing enhances the ability of laying hens to take opportunities

Frontiers in Veterinary Science
IntroductionThe potential of aviary housing for improving laying hen (Gallus gallus domesticus) welfare will be constrained if rearing conditions limit the hens’ behavioral ability to take opportunities. Incorporating theories on developmental plasticity
Lena Skånberg, Regine V. Holt, Ruth C. Newberry, Inma Estevez, Inma Estevez, Kirste McCrea, Linda J. Keeling   +6 more
doaj   +1 more source

Quantitative analysis of seed rain under natural and artificial perches in the Araucaria Forest Análise quantitativa da chuva de sementes sob poleiros naturais e artificiais em Floresta Ombrófila Mista

Pesquisa Florestal Brasileira, 2010
The objective of this study was to compare the efficiency in terms of number of seeds deposited under natural and artificial bird-perches set in degraded areas of Araucaria Forest.
Sandra Bos Mikich, Rafael Fernando da Silva Possette   +1 more
doaj   +1 more source

Conserving the Diversity of Ecological Interactions: The Role of Two Threatened Macaw Species as Legitimate Dispersers of “Megafaunal” Fruits

Diversity, 2020
The extinction of ecological functions is increasingly considered a major component of biodiversity loss, given its pervasive effects on ecosystems, and it may precede the disappearance of the species engaged.
José L. Tella, Fernando Hiraldo, Erica Pacífico, José A. Díaz-Luque, Francisco V. Dénes, Fernanda M. Fontoura, Neiva Guedes, Guillermo Blanco   +7 more
doaj   +1 more source

Monitoring active osprey nests with drones is more time efficient and less disturbing than conventional methods

Wildlife Biology, EarlyView.
Drones are used to monitor bird nesting sites at less accessible locations, such as on cliffs, human infrastructure, or within the tree canopy. While there are a growing number of studies documenting avian behavioral responses to various drones, there is a continued need to monitor taxa‐specific responses to different drone models. We explored both the
Natasha K. Murphy, Jared A. Elmore, Melanie R. Boudreau, Brian S. Dorr, Scott A. Rush   +4 more
wiley   +1 more source

Concrete jungle to urban oasis: evaluating scale, vegetation cover, and aggregation of urban greenspaces on wildlife

Wildlife Biology, EarlyView.
Urban greenspaces are a haven for wildlife in densely populated cities. Wildlife use greenspaces for resource acquisition, shelter, and travel across urbanized landscapes. Greenspace metrics such as herbaceous or woody landcover, size, patchiness, and human land use influence species richness.
Adrianna J. Elihu, Janel L. Ortiz
wiley   +1 more source

The Greatest Show (Birds) on Earth: Public Presentations and Their Welfare Impacts on Zoo‐Housed Birds

Zoo Biology, EarlyView.
Birds involved in bird shows were compared against non‐show birds regarding show paticipation, behaviour, body score condiiton, and feather condition. Additionally, comparisons between on and off show days as well as before and after the show were made to investigate differences in behaviour and condition. Show birds demonstrated a closer to ideal body
Bridget Cooper‐Rogers, Paige Klingner, Sara Hanson, Justine Partoon, Eduardo J. Fernandez   +4 more
wiley   +1 more source