Nesting Success of MallardAnas platyrhynchosat Kashmir Lakes, India, is Associated with Nest Location

2017 ◽  
Vol 16 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Mudasir Habib ◽  
Priya Davidar
Keyword(s):  
Nesting Success ◽  
Nest Location ◽  
Kashmir Lakes

scholarly journals What Makes a Good Nest? Benefits of Nest Choice to Female Baya Weavers (Ploceus Philippinus)

The Auk ◽  
2006 ◽  
Vol 123 (2) ◽  
pp. 475-486 ◽  
Author(s):  
Suhel Quader
Keyword(s):  
Generalized Linear Model ◽  
Competitive Ability ◽  
Nesting Success ◽  
Nest Architecture ◽  
Nest Location ◽  
Ploceus Philippinus ◽  
Fine Fiber ◽  
Nest Choice ◽  
Predictor Of Success ◽  
Nest Height

Abstract The nests of some birds are built exclusively by males and then displayed to females. In such species, one expects females to choose those nests that provide maximum safety to themselves and their offspring. What attributes of a nest should females use in making these choices? Here, I examine the correlates of nesting success in the Baya Weaver (Ploceus philippinus), a species in which males provide nests and little else. In particular, I examine which of two suites of nest attributes best predicts nesting success: nest location (which reflects male competitive ability) or nest architecture (which reflects male building skill). Because whether a nest has successfully fledged young is sometimes uncertain, I supplement generalized linear model analyses with survival analyses, which can incorporate ambiguity in nest fate. Together, these analyses reveal that nests built in thorny trees and woven with fine fiber have high success. Nesting success also increases with nest height and with thickness of the supporting branch. Overall, nest location is a slightly better predictor of success than nest architecture; this is consistent with previous findings that female choice of nests is influenced more by location than by architecture. ¿Qué Hace a un Nido un Buen Nido? Beneficios de la Selección de Nidos para las Hembras en Ploceus philippinus

scholarly journals A multiscale assessment of Red-tailed Hawk reproductive success relative to urban density and habitat type

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Justin H White ◽  
Jessi L Brown ◽  
Zachary E Ormsby
Keyword(s):  
Urban Areas ◽  
Urban Expansion ◽  
Habitat Type ◽  
Nesting Success ◽  
Arid Environments ◽  
Hatch Date ◽  
Urban Density ◽  
Landscape Characteristics ◽  
Suburban Areas ◽  
Breeding Seasons

Abstract Despite the unique threats to wildlife in urban areas, many raptors have established successfully reproducing urban populations. To identify variations in raptor breeding ecology within an urban area, we compared metrics of Red-tailed Hawk reproductive attempts to landscape characteristics in Reno and Sparks, NV, USA during the 2015 and 2016 breeding seasons. We used the Apparent Nesting Success and logistic exposure methods to measure nesting success of the Red-tailed Hawks. We used generalized linear models to relate nesting success and fledge rate to habitat type, productivity to hatch date (Julian day) and hatch date to urban density. Nesting success was 86% and 83% for the respective years. Nesting success increased in grassland-agricultural and shrub habitats and decreased in riparian habitat within the urban landscape. Productivity was 2.23 and 2.03 per nest for the breeding seasons. Fledge rates were 72% and 77%, respectively, and decreased in riparian areas. Nestlings hatched earlier with increased urban density and earliest in suburban areas, following a negative quadratic curve. Nesting success and productivity for this population were high relative to others in North America. Productivity increased in habitats where ground prey was more accessible. We suggest that suburban areas, if not frequently disturbed, provide sufficient resources to sustain Red-tailed Hawks over extended periods. As urban expansion continues in arid environments globally, we stress that researchers monitor reproductive output across the urban predator guild to elucidate patterns in population dynamics and adaptation.

Weather fluctuations are linked to nesting success and renesting decisions in saffron finches

2021 ◽  
Author(s):  
Fernando Marques‐Santos ◽  
Uschi Wischhoff ◽  
Marcos Rodrigues
Keyword(s):  
Nesting Success

scholarly journals Patch Size and Landscape Effects on Density and Nesting Success of Grassland Birds

2006 ◽  
Vol 70 (1) ◽  
pp. 158-172 ◽  
Author(s):  
MAIKEN WINTER ◽  
DOUGLAS H. JOHNSON ◽  
JILL A. SHAFFER ◽  
THERESE M. DONOVAN ◽  
W. DANIEL SVEDARSKY
Keyword(s):  
Patch Size ◽  
Grassland Birds ◽  
Nesting Success ◽  
Landscape Effects

On the trophic status and conservation of Kashmir Lakes

Hydrobiologia ◽  
1980 ◽  
Vol 68 (1) ◽  
pp. 9-15 ◽  
Author(s):  
K. K. Vass
Keyword(s):  
Trophic Status ◽  
Kashmir Lakes

Water Level Dynamics in Wetlands and Nesting Success of Black Terns in Maine

Waterbirds ◽  
2005 ◽  
Vol 28 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Andrew T. Gilbert ◽  
Frederick A. Servello
Keyword(s):  
Water Level ◽  
Nesting Success
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