Results 51 to 60 of about 888 (175)
We describe the host response continuum for highly pathogenic avian influenza viruses (HPAIV), including the continuum of host responses to HPAIV infection and exposure based on the primary axis of host competence, ability to infect other hosts, and host vulnerability.
Johanna A. Harvey +9 more
wiley +1 more source
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
Status and trends of the Canada Goose Branta canadensis in France
An enquiry to determine the distribution and abundance of the Canada Goose Branta candensis in France was undertaken in 2008. Responses were received from 92 out of the 96 departments. Canada Geese were reported in 56 of the 92 departments, in 8 of which the species had only appeared after 2000.
Carol Fouque, Vincent Schricke
openaire +2 more sources
The Status of the Subspecific Races of Branta canadensis
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Sustained non‐lethal hazing was associated with reduced wildlife use of runway‐adjacent critical areas while overall wildlife numbers remained stable. Bayesian models of operational hazing records showed that the proportion of individuals in critical areas declined, lower hazing escalation was required over time, and pre‐ and post‐hazing response ...
Grant D. Linley, Michael A. Weston
wiley +1 more source
A comparison of field methods to estimate Canada goose abundance
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
Molt Migration by Giant Canada Geese in Eastern South Dakota
We captured giant Canada geese (Branta canadensis maxima) in 7 counties in eastern South Dakota during the summer molting period, 2000–2003. We attached very high frequency (VHF) transmitters to 150 adult female geese with brood patches, and leg bands to
Charles D. Dieter, Bobby J. Anderson
doaj +1 more source
Evaluation of the effects of september hunting seasons on Canada geese in Nebraska
Populations of temperate‐nesting Canada geese (Branta canadensis) have increased in Nebraska, USA, resulting in an increased number of nuisance and damage complaints.
Scott R. Groepper +3 more
doaj +1 more source
ABSTRACT Fishless lakes, which may harbour higher biodiversity than lakes with fish, are becoming increasingly rare due to fish introductions. Although the impacts of fish introduction are relatively well studied in high‐elevation fishless lakes, previous studies have mainly focused on a single invertebrate community or on a particular life stage of a ...
Ariane Barrette +3 more
wiley +1 more source
Quantification of avian hazards to military aircraft and implications for wildlife management. [PDF]
Collisions between birds and military aircraft are common and can have catastrophic effects. Knowledge of relative wildlife hazards to aircraft (the likelihood of aircraft damage when a species is struck) is needed before estimating wildlife strike risk (
Morgan B Pfeiffer +2 more
doaj +1 more source

