Results 31 to 40 of about 4,391 (197)
Time scale evolution of avipoxviruses [PDF]
, 1952 Avipoxviruses are divided into three clades: canarypox-like viruses, fowlpox-like viruses, and psittacinepox-like viruses. Several molecular clock and demographic models available in the BEAST package were compared on three avipoxvirus genes (P4b ...
Le Loc’h, Guillaume +2 more
core +1 more source
Rangifer, 2003 We studied natality in the Northern Alaska Peninsula (NAP) and Southern Alaska Peninsula (SAP) caribou (Rangifer tarandus granti) herds during 1996-1999, and mortality and weights of calves during 1998 and 1999- Natality was lower in the NAP than the SAP
Richard A. Sellers +4 more
doaj +1 more source
Ecosphere, 2023 Human–wildlife conflicts on farms and ranches are common and well‐documented, particularly with apex predators. Predation of livestock, for example, can result in serious economic burdens for farmers and can become threats to wildlife populations as ...
Ethan S. Duvall +2 more
doaj +1 more source
An overview of existing raptor contaminant monitoring activities in Europe [PDF]
, 2017 Under a Creative Commons license.-- et al.Biomonitoring using raptors as sentinels can provide early warning of the potential impacts of contaminants on humans and the environment and also a means of tracking the success of associated mitigation measures.
Gómez-Ramírez, Pilar, Mateo, Rafael
core +1 more source
Ecosphere, 2018 Ecological communities are best studied at the landscape level, where linkages among communities are considered. Such linkages are often driven by increases in primary production caused by apex predators limiting herbivores.
Erin U. Rechsteiner +2 more
doaj +1 more source
Structure and resilience of bald eagle roost networks
Wildlife Society Bulletin, 2018 The recognition that communal roosts are important elements within the life cycle of bald eagles (Haliaeetus leucocephalus) led to their protection under the “disturb” clause of the Bald and Golden Eagle Protection Act.
Bryan D. Watts, Rodney J. Dyer
doaj +1 more source
Blood lead levels in Bald Eagles (Haliaeetus leucocephalus) in Southeast Alaska by gender and capture location. [PDF]
, 2014 Research into the effects of lead on bald eagles has demonstrated that lead levels are higher in bald eagles than other birds at lower trophic levels (Burger and Gochfield 2009).
Hambleton, Jessica
core
Feathers as a tool to assess mercury contamination in gentoo penguins: Variations at the individual level [PDF]
, 2015 Feathers have been widely used to assess mercury contamination in birds as they reflect metal concentrations accumulated between successive moult periods: they are also easy to sample and have minimum impact on the study birds.
Medeiros, Renata +8 more
core +6 more sources
Sarcocystis sp.-Associated Meningoencephalitis in a Bald Eagle (Haliaeetus Leucocephalus) [PDF]
Journal of Veterinary Diagnostic Investigation, 2007 Protozoal meningoencephalitis is uncommon in raptors. An adult female bald eagle ( Haliaeetus leucocephalus) was euthanized after several months of treatment for progressive neurologic signs. The predominant histologic lesion was lymphoplasmacytic and histiocytic meningoencephalitis involving the cerebrum and cerebellum.
Erik J, Olson +2 more
openaire +2 more sources
Comparing autumn duck use of intensely managed wetlands in Michigan using a novel approach
The Journal of Wildlife Management, EarlyView.Camera traps, a relatively novel method for assessing waterfowl use of wetlands, show ducks in southeastern Michigan are influenced by hunting disturbance, vegetation type, season progression, and diel period. Abstract Socioeconomic value derived from duck hunting has contributed to autumn habitat use becoming a particular focus for the natural ...
Trey McClinton +2 more
wiley +1 more source