Results 61 to 70 of about 15,277 (227)

Balancing Waterfowl Hunting Opportunity and Quality to Recruit, Retain, and Reactivate

Wildlife Society Bulletin, 2020
Waterfowl hunter numbers and waterfowl populations were closely correlated until the past 2 decades when hunter numbers declined despite near‐record breeding population estimates for ducks in North America.
Michael L. Schummer, John Simpson, J. Brian Davis, Brendan Shirkey, Kenneth E. Wallen   +4 more
doaj   +1 more source

Distinct 5′ UTR Requirements for Translation of the Bicistronic X/P mRNA Among Avian Orthobornaviruses

Microbiology and Immunology, EarlyView.
ABSTRACT Orthobornaviruses express X and the phosphoprotein (P) from a bicistronic X/P mRNA, and these proteins regulate polymerase activity. In mammalian orthobornaviruses, the 5′ untranslated region (5′ UTR) of the X/P mRNA controls the translational balance between X and P and thereby promotes efficient replication.
Meng‐Chi Wu, Takehiro Kanda, Ryo Komorizono, Madoka Sakai, Alexander Leacy, Leonardo Susta, Akiko Makino, Keizo Tomonaga   +7 more
wiley   +1 more source

Camera traps offer reliable estimates compared to ground surveys for monitoring duck pairs and broods

Wildlife Society Bulletin
Monitoring breeding waterfowl populations with ground‐based pair and brood surveys informs management and conservation decisions. However, surveys are often limited temporally and may miss individuals that are not present or available for detection at ...
Ashley J. Pidwerbesky, Howard V. Singer, James E. Paterson, Matthew E. Dyson   +3 more
doaj   +1 more source

Impact of low-protein diet on geese growth: early low-protein diets with amino acid supplementation improve nitrogen utilization and maintain growth performance in meat geese

Frontiers in Animal Science
Herein, 364 one-day-old male Jiangnan white goslings were divided into four groups: PM (18.55% crude protein (CP) + main amino acids (AA)), PA (18.55% CP + all AA), LPM (15.55% CP + main AA), and LPA (15.55% CP + all AA). The main AAs were Lys, Met, Thr,
Wenzhong Li, Mengli Zhao, Mengli Zhao, Lei Zhang, Guobo Sun, Hongchang Zhao, Gansheng Zhang, Rongchao Ji, Jian Wang, Jian Wang, Xiaoming Li, Xiaoming Li, Xiaoming Li, Guoshun Chen   +13 more
doaj   +1 more source

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

Integrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

From rhetoric to measurement: The economics of wetland conservation

Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract Wetland conservation continues to be a pressing issue as wetlands continue to be lost due to urban, industrial, and agricultural expansion. This paper synthesizes the current knowledge about wetland conservation economics in Canada, with a focus on prairie landscapes. We review the methods economists use to empirically measure the costs (i.e.,
Patrick Lloyd‐Smith, Peter Boxall, Ken Belcher   +2 more
wiley   +1 more source

Integrating ecological feedbacks across scales and levels of organization

Ecography, EarlyView.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon, Sonia Kéfi, Nicolas Loeuille, Ismaël Lajaaiti, Isabelle Gounand   +4 more
wiley   +1 more source

Sex‐Specific Control and Incomplete Matings: Sperm Removal Behavior in a Bush Cricket Species

Ethology, EarlyView.
In this study, we investigated which sex influences the duration of sperm removal behaviour (SRB) in the ornate bush cricket, Metaplastes ornatus. Female traits showed a weak effect on SRB duration, and lighter females mated more frequently. Frequent unsuccessful mating terminations shortened SRB indicating high level of sexual conflict.
Chiara Flaskamp, Klaus Reinhold, Tuba Rizvi   +2 more
wiley   +1 more source

An assessment of non‐breeding waterfowl surveys on National Wildlife Refuges in the Central Flyway

Wildlife Society Bulletin, 2015
Many units of the National Wildlife Refuge System (NWRS) in the Central Flyway of the United States were established to conserve and enhance waterfowl populations.
Kent Andersson, Craig A. Davis, Grant Harris, David A. Haukos   +3 more
doaj   +1 more source

Challenges in population monitoring: Bar‐tailed Godwits (Limosa lapponica) on the East Atlantic Flyway defy assumed population structure

Ibis, EarlyView.
Estimating and monitoring migratory bird populations involves significant challenges, even in the most well‐studied and easily‐counted species, and can be further complicated by long‐held but unverified assumptions and by shifting distributions in changing flyway conditions.
Jesse R. Conklin, Roeland A. Bom, Åke Lindström, Pierrick Bocher, Theunis Piersma   +4 more
wiley   +1 more source