Results 211 to 220 of about 25,622 (250)

Intraseasonal patterns in shorebird nest survival are related to nest age and defence behaviour

Oecologia, 2010
Nest survival may vary throughout the breeding season for many bird species, and the nature of this temporal variation can reveal the links between birds, their predators, and other components of the ecosystem. We used program Mark to model patterns in nest survival within the breeding season for shorebirds nesting on arctic tundra.
Paul Smith, Scott Wilson, Smith Paul A
exaly   +3 more sources

Effect of nest location on gopher tortoise nest survival

Journal of Wildlife Management, 2016
ABSTRACTGopher tortoise (Gopherus polyphemus) populations are declining range‐wide primarily because of habitat loss, fragmentation, and degradation, but low recruitment due to nest predation also may be contributing to this decline. The relationship of nest location and nest survival is unknown.
Steven Castleberry
exaly   +2 more sources

Nest Site Selection Influences Cinnamon Teal Nest Survival in Colorado

Journal of Wildlife Management, 2020
ABSTRACTNest survival of ducks is partially a function of the spatiotemporal characteristics of the site at which a bird chooses to nest. Nest survival is also a fundamental component of population growth in waterfowl but is relatively unstudied for cinnamon teal (Spatula cyanoptera).
Casey Setash
exaly   +2 more sources

Merriam's Turkey Nest Survival and Factors Affecting Nest Predation by Mammals

Journal of Wildlife Management, 2008
Abstract: Nest success is an important parameter affecting population fluctuations of wild turkeys ( Meleagris gallopavo ). Factors influencing mammalian predation on turkey nests are complicated and not well understood.
Mark A Rumble
exaly   +2 more sources

Handling of uncertain nest fates and variation in nest survival estimates

Journal of Ornithology, 2007
Researchers are moving their attention away from the Mayfield method of estimating nest success to advanced nest survival models that can be implemented within statistical software packages. In spite of this, little attention has been paid to developing formal rules for handling of ambiguous nesting data within these software-based methods.
Karel Weidinger
exaly   +2 more sources

Nest cameras do not affect nest survival in a meadow-nesting shorebird

Bird Conservation International, 2020
SummaryIdentifying the fate of birds’ nests and the causes of breeding failure is often crucial for the development of conservation strategies for threatened species. However, collecting these data by repeatedly visiting nests might itself contribute to nest failure or bias. To solve this dilemma, automatic cameras have increasingly been used as a time-
VOLKER SALEWSKI, LUIS SCHMIDT
openaire   +1 more source

Weighted Nest Survival Models

Biometrics, 1993
Nest survival data possess two characteristics that are not fully exploited by traditional nest survival models: the data constitute a probability sample of the population and the length of time nests are observed provides information concerning age at the time of detection.
Bromaghin, Jeffrey F., McDonald, Lyman L.   +1 more
openaire   +1 more source

Effects of Mesopredators on Nest Survival of Shrub‐Nesting Songbirds

The Journal of Wildlife Management, 2010
ABSTRACT  Although nest predation is often the single largest source of mortality in avian populations, manipulative studies to determine predator impacts on nest survival are rare, particularly studies that examine impacts of mid‐size mammalian predators (hereafter, mesopredators) on nest survival of shrub ...
L. MIKE CONNER, JESSICA C. RUTLEDGE, LORA L. SMITH   +2 more
openaire   +1 more source

Predation on painted turtle nests: nest survival as a function of nest age

Canadian Journal of Zoology, 1982
This study examined the relationship between nest age and predation rate in painted turtles (Chrysemys picta). Eighty-one intact nests were found; 33 were eventually preyed upon during the study. New nests (less than 72 h old) do not appear to have a greater risk of predation than older nests. The majority (55%) of nests preyed upon were older than 72 
openaire   +1 more source

Possible Effects of Nest Predation on Ground Nest Survival in the Neretva Delta (Croatia)

Avian Biology Research, 2010
Nest predation experiment to survey survival probabilities of larger bodied ground-nesting birds (ducks) was carried out on Lake Kuti in May 2006. From 25 artificial ground nests on the floating reedbed islands and 25 nests on the grazed islands, 8 and 1, respectively, were depredated.
Purger, Jenő J., Mužinić, Jasmina
openaire   +2 more sources