Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Robert B. Emery"'
Autor:
Paige D. Kowal, Pascal Badiou, Robert B. Emery, L. Gordon Goldsborough, Dale A. Wrubleski, Llwellyn M. Armstrong, Bryan Page
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Once introduced to shallow aquatic ecosystems common carp (Cyprinus carpio) often degrade habitat, negatively impacting the native organisms that rely on these systems. Detrimental effects often observed following the introduction of carp include a r
Externí odkaz:
https://doaj.org/article/ef4edbc0eb4d443f8512b65c0d3a6ac3
Publikováno v:
Ecosphere, Vol 13, Iss 2, Pp n/a-n/a (2022)
Abstract For upland‐nesting ducks that rely on grassland and wetland habitats in landscapes characterized by human alteration and a strongly fluctuating climate, information on how landscape composition interacts with climate is needed to better un
Externí odkaz:
https://doaj.org/article/c5d98b0208de47c0bb6f6083079c1639
Publikováno v:
Wildlife Monographs.
Autor:
Lauren E. Bortolotti, Robert B. Emery, Paige D. Kowal, Llwellyn M. Armstrong, Vanessa B. Harriman, Howard V. Singer, Michael J. Anteau, Frank B. Baldwin, Cameron Meuckon, Dale A. Wrubleski
Publikováno v:
Wetlands. 43
Autor:
Llwellyn M. Armstrong, Brian L. Joynt, David W. Howerter, Michael G. Anderson, James H. Devries, Robert B. Emery, Todd W. Arnold
Publikováno v:
Wildlife Monographs. 188:1-37
The Prairie Habitat Joint Venture (PHJV) delivers conservation programs for the Canadian portion of the Prairie Pothole Region under the North American Waterfowl Management Plan. The PHJV Assessment was designed to evaluate biological assumptions and
Autor:
Matthew R. Kaminski, J. Brian Davis, Richard M. Kaminski, Robert B. Emery, Michael G. Brasher, Guy A. Baldassarre
Publikováno v:
Wildlife Society Bulletin. 38:599-604
Methods for accurately determining pair status of male ducks during the breeding season are necessary for further understanding the roles of paired and unpaired males in waterfowl breeding populations. Previous studies assigned pair status based on b
Publikováno v:
The Journal of Wildlife Management. 77:534-544
The survival of waterfowl nests is positively correlated with the amount of grassland on the landscape, and population growth rates of some waterfowl species (e.g., mallards [Anas platyrhynchos]) are sensitive to nest survival rates. Thus, the effect
Autor:
Robert B. Emery, David W. Howerter, James H. Devries, Todd W. Arnold, Anthony M. Pagano, Brian L. Joynt
Publikováno v:
Journal of Wildlife Management. 72:224-230
Social indices were developed to assess breeding productivity of waterfowl based on weekly roadside surveys of social groupings (i.e., pairs, lone M, flocked M). We calculated social indices for mallard (Anas platyrhynchos) populations breeding on 16
Autor:
Llwellyn M. Armstrong, Todd W. Arnold, James H. Devries, David W. Howerter, Michael G. Anderson, Brian L. Joynt, Lea M. Craig-Moore, Robert B. Emery
Publikováno v:
Journal of Wildlife Management. 71:2542-2549
Dense nesting cover (DNC) has been a conspicuous component of habitat management for upland-nesting ducks for >30 years, but its benefits for nesting ducks have been contentious. During 1994–1999 we monitored 3,058 dabbling duck (Anas spp.) nests i
Autor:
Llwellyn M. Armstrong, Michael G. Anderson, Robert B. Emery, Brian L. Joynt, David W. Howerter, James H. Devries
Publikováno v:
Journal of Wildlife Management. 69:1181-1193
Early hatched waterfowl are more likely to enter the breeding population. Managers' primary tool to increase nesting success in the Prairie Pothole Region (PPR) of North America is managing upland vegetation for duck nesting cover. To determine wheth