Results 51 to 60 of about 6,062 (214)
A theoretical model of flock formation to understand trade‐offs between cooperation and competition
Ecosphere, Volume 17, Issue 2, February 2026.Abstract Migratory birds often form flocks during spring migration and compete for territories once they arrive at breeding sites. Understanding the emergence and structure of these flocks has important implications for avian ecology and conservation, as flocking can influence migration success, resource distribution, and population resilience. In this
Chenlan Wang +3 more
wiley +1 more source
Ecological Solutions and Evidence, Volume 7, Issue 1, January–March 2026.Uncrewed aerial systems (UAS) equipped with thermal cameras are increasingly being used in wildlife research. Here, we explore the use of UAS paired with distance sampling to detect and estimate densities of waterfowl pairs and broods in Wisconsin.
Amanda E. Griswold +2 more
wiley +1 more source
The Emperor Goose: An Annotated Bibliography [PDF]
, 1996 This bibliography contains more than 500 published and unpublished references relevant to the emperor goose (Chen canagica). The referenced works date from the early exploration of Beringia and Alaska through the formal description of the species in ...
Petersen, Margaret R. +2 more
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野生动物学报, 2000 1999年12月20日,江西鄱阳湖国家级自然保护区的科技人员在梅西湖进行水禽调查时发现一只加拿大雁（Branta canadensis）。在30×的单筒望远镜下观察,可清晰地看到此鸟头和颈黑色,下颈有一明显的白色颈环,喉部白色,上体深褐色且有苍白色条斑,喙、脚以及尾均为黑色。尾上覆羽白色。
赵金生, 宋相金
doaj
Evolution and phylogeny of birds - Taxonomic consequences [PDF]
, 2012 Nucleotidsequenzen von mitochondrialen und nucleären Markergenen eignen sich hervorragend, um die Phylogenie und Evolution der Vögel zu untersuchen. Eine kürzlich publizierte Analyse mit 19 Kerngenen (Hackett et al.
Wink, Michael
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Eelgrass Distribution in the Great Bay Estuary for 2006 [PDF]
, 2008 Eelgrass in Great Bay itself decreased substantially (43%) between 2005 and 2006, due to losses in both biomass and distribution. Little Bay and the Piscataqua River showed greater change(loss of 40%) between 2005 and 2006 than previously, with very low ...
Short, Frederick T.
core +5 more sources
BirT: A Novel Primer Pair for Avian Environmental DNA Metabarcoding
Environmental DNA, Volume 8, Issue 1, January–February 2026.The BirT primers target the mitochondrial 12S rRNA gene and are designed for avian eDNA metabarcoding. They safeguard against the amplification of mammal, fish and amphibian DNA and were successfully used to detect bird species from eDNA samples obtained in Southern Ontario. Detections were cross‐checked with eBird observations.
Bettina Thalinger +4 more
wiley +1 more source
Radioactivity Levels in Ohio's Resident Canada Goose (Branta Canadensis) Populations [PDF]
, 1976 Author Institution: Ohio Cooperative Wildlife Research Unit, Department of Zoology, The Ohio State UniversityGross beta and mCs radioactivity levels were determined for pectoralis muscle of resident Canada geese (Branta canadensis) in 3 wildlife areas in
Adams, Lowell W.
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A comparison of field methods to estimate Canada goose abundance
Wildlife Society Bulletin, 2017 We conducted a 2‐year study (2014–2015) in North Carolina, USA, to compare precision and efficiency between 2 methods used to estimate Canada goose (Branta canadensis) abundance.
Mark A. McAlister +4 more
doaj +1 more source
Foraging Preferences of Captive Canada Geese Related to Turfgrass Mixtures
Human-Wildlife Interactions, 2017 Overabundant populations of Canada geese (Branta canadensis) cause economic and safety concerns associated with collisions with civil and military aircraft.
Brian E. Washburn +2 more
doaj +1 more source