Results 141 to 150 of about 11,201 (245)
Design considerations for breeding waterfowl surveys
This study evaluated how different survey designs affect the accuracy and precision of breeding waterfowl population estimates in Iowa's Prairie Pothole Region. Using aerial survey data from 2016–2018, we found that conducting at least 2 visits per season reduced bias in pair estimates, particularly for wood ducks and blue‐winged teal, while mallard ...
Tyler M. Harms +2 more
wiley +1 more source
Seasonal variation in wild pig (Sus scrofa) diet revealed by DNA metabarcoding
Using DNA metabarcoding of fecal samples, we investigated the diet of wild pigs at an extensive bottomland hardwood forest ecosystem within Felsenthal National Wildlife Refuge in Southern Arkansas. We found that wild pig diet was highly diverse and included at least 74 plant families and 106 genera and 23 species of vertebrates.
Kenneth C. Wilson +3 more
wiley +1 more source
Abundance estimates of eastern black rails in southeastern Colorado
This study estimated eastern black rail (Laterallus jamaicensis jamaicensis) detection, occupancy, and abundance in southeastern Colorado. We found detection probability increased later in the season and later at night but decreased with ambient noise. Occupancy increased with residual vegetation height and detection of Virginia rail (Rallus limicola).
Eleonora M. Hargett +3 more
wiley +1 more source
Assessing sustainable lethal take for great blue heron in the northeastern United States
We used Prescribed Take Level (PTL) models to estimate sustainable take limits for great blue heron and aid depredation permitting decisions by the USFWS in the northeastern United States. The PTL models suggested that current lethal take levels are sustainable and that cumulative authorized regional take should not exceed 2,650 individuals per year ...
Eric G. LeFlore +5 more
wiley +1 more source
Peruvian frogs underwent a climate‐driven range expansion into deglaciating mountains, exposing themselves and their fungal pathogen Batrachochytrium dendrobatidis (Bd) to challenging new thermal environments. Bd has dispersed extensively in these new habitats, and elevation may mediate the apparent sublethal impacts of infection for frogs.
Emma Steigerwald +6 more
wiley +1 more source
Amphibian populations worldwide face threats from emerging infectious diseases. We screened frog‐biting midges (Corethrella spp.) from Central and South America for Batrachochytrium dendrobatidis, Ranaviruses, and Trypanosoma spp. using qPCR. All three pathogens were detected, indicating that Corethrella may act as vectors and represent promising tools
Jonas Virgo +3 more
wiley +1 more source
From rhetoric to measurement: The economics of wetland conservation
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 +2 more
wiley +1 more source
Sex‐Specific Control and Incomplete Matings: Sperm Removal Behavior in a Bush Cricket Species
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 +2 more
wiley +1 more source
eBird Data Highlight Shifts in Wetland Resources Structuring Waterfowl and Shorebird Abundance. [PDF]
Donnelly JP +6 more
europepmc +1 more source
ABSTRACT Flood loss mapping is one of the essential prerequisites for urban flood assessment studies to identify areas vulnerable to floods and to make cities safe and resilient. This study develops a neuro‐fuzzy loss model to generate flood loss maps, classifying loss levels into several categories ranging from no loss to severe loss.
Mahdi Sedighkia +2 more
wiley +1 more source

