Results 141 to 150 of about 47,477 (297)

The role of nest predation and nest predators in population declines of capercaillie and black grouse

, 2017
Throughout the continuous boreal forests of Fennoscandia, long-term and synchronous declines in population density and cyclic amplitude of capercaillie (Tetrao urogallus) and black grouse (Lyrurus tetrix) have been observed for decades. The extensive spatiotemporal scale involved, implies large-scale processes behind causal mechanisms. Changes in human
openaire   +1 more source

Effects of Forest Harvesting on Nest Predation in Cavity-nesting Waterfowl [PDF]

The Auk, 2001
Pierre, Johanna P., Bears, Heather, Paszkowski, Cynthia A.   +2 more
openaire   +3 more sources

The European honey buzzard (Pernis apivorus) as an ally for the control of the invasive yellow‐legged hornet (Vespa velutina nigrithorax)

Pest Management Science, Volume 81, Issue 4, Page 2237-2247, April 2025.
The predatory effect of the honey‐buzzard affects the reproductive performance of Asian‐hornet colonies, decreasing the density of workers over distance and time. The foraging distances of the honey‐buzzard concentrates within the first 2000 m from nest, which supports the results observed.
Jorge Ángel Martín‐Ávila, Luisa María Díaz‐Aranda, José Manuel Fernández‐Pereira, Salvador Rebollo   +3 more
wiley   +1 more source

Nest concealment reduces predation during the nestling stage of grassland birds in the Pampas

Avian Conservation and Ecology
Grasslands face continually increasing pressure from conversion to cropland, grazing, and urbanization, which severely affect their wildlife and ecosystemic services.
Martín A Colombo, Luciano N. Segura
doaj   +1 more source

Meadow birds in Sweden – population trends, effects of restoration and management [PDF]

, 2010
The area of Swedish wet meadows has decreased drastically during the last century due to cultivation and abandonment. During the same time the meadow bird fauna have changed considerably.
Berg, Åke, Gustafson, Tomas
core  

Hydropower Operations Reduce Alluvial Nesting Habitat and Alter Riverine Turtle Population Demographics

River Research and Applications, EarlyView.
ABSTRACT Hydropower management has altered discharge regimes of large rivers worldwide, reducing sediment mobilization and early‐seral conditions essential for many riverine species. Spiny softshell turtles (Apalone spinifera) rely on alluvial habitats for nesting and may serve as sentinel species to assess the effects of regulated flow regimes and ...
Kayhan Ostovar, Larissa Saarel, Joanna‐Lynn C. Borgogna, Luke Ward, Whalen Alston, Matt Prinkki, Addison Valdez   +6 more
wiley   +1 more source

Effects of low level military training flights on wading bird colonies in Florida [PDF]

, 1984
During 1983 and 1984 the effect of low level military training flights on the establishment. size and reproductive success of wading bird colonies was studied in Florida.
Black, Barbara, Bohall, Petra G., Collopy, Michael W., Percival, H. Franklin, Tiller, Anita A.   +4 more
core  

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

HACCP for Suckling Piglet Mortality [PDF]

, 2011
Deliverables of the COREPIG project are management tools based on the HACCP principle (Hazard Analysis Critical Control Points). These tools help farmers (in a farm specific way) to solve and prevent problems with endoparasites, reproduction and ...
Dippel, Sabine, Früh, Barbara, Leeb, Christine   +2 more
core  

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source