scholarly journals Breeding habitat and nest‐site selection by an obligatory “nest‐cleptoparasite”, the Amur Falcon Falco amurensis

2019 ◽  
Vol 9 (24) ◽  
pp. 14430-14441
Author(s):  
Martin Frommhold ◽  
Arend Heim ◽  
Mikhail Barabanov ◽  
Franziska Maier ◽  
Ralf‐Udo Mühle ◽  
...  
Keyword(s):  
Site Selection ◽  
Nest Site ◽  
Nest Site Selection ◽  
Breeding Habitat

scholarly journals Factors affecting nest-site selection of Sabine's Gulls in the eastern Canadian Arctic

2005 ◽  
Vol 83 (9) ◽  
pp. 1240-1245 ◽  
Author(s):  
Iain J Stenhouse ◽  
H Grant Gilchrist ◽  
William A Montevecchi
Keyword(s):  
Site Selection ◽  
Nest Site ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Factors Affecting ◽  
Invertebrate Prey ◽  
Terrestrial Invertebrate ◽  
Individual Fitness ◽  
Sabine’S Gull ◽  
Selection Of

The selection of breeding habitat is of prime importance for individual fitness. Among birds, natural selection should favour the ability to recognize and select habitat suitable for nesting and rearing chicks. This study compares the characteristics of Sabine's Gull, Xema sabini (Sabine, 1819), nest sites with random points across a coastal tundra environment on Southampton Island, Nunavut, Canada. The availability of terrestrial invertebrate prey was also examined among habitats. Sabine's Gull nests were nonrandomly distributed in relation to vegetation, substrate, and proximity to water. Gulls nested within approximately 1 km of the coastline and selected sites with the greatest proportions of moss and standing water (i.e., they nested close to the edge of small freshwater ponds near shore). However, there were no detectable differences in characteristics between successful and unsuccessful nests within preferred habitat. The dynamics of terrestrial invertebrate prey communities varied between years, but the volume of invertebrates in Sabine's Gull nesting habitat was intermediate between the most productive habitats and the least productive habitats in both years. However, nest-site selection in Sabine's Gulls may also be influenced by the availability of aquatic invertebrates (not examined in this study) and their proximity to the marine coastline, where chicks are taken to be reared.

Breeding habitat and nest‐site selection of Bearded Vulture Gypaetus barbatus in the Annapurna Himalaya Range of Nepal

Ibis ◽  
2018 ◽  
Vol 162 (1) ◽  
pp. 153-161 ◽  
Author(s):  
Tulsi Ram Subedi ◽  
José D. Anadón ◽  
Hem Sagar Baral ◽  
Munir Z. Virani ◽  
Shahrul Anuar Mohd Sah
Keyword(s):  
Site Selection ◽  
Nest Site ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Gypaetus Barbatus ◽  
Bearded Vulture ◽  
Selection Of

scholarly journals The importance of scale-dependent ravine characteristics on breeding-site selection by the Burrowing Parrot, Cyanoliseus patagonus

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3182 ◽  
Author(s):  
Myriam Ramirez-Herranz ◽  
Rodrigo S. Rios ◽  
Renzo Vargas-Rodriguez ◽  
Jose-Enrique Novoa-Jerez ◽  
Francisco A. Squeo
Keyword(s):  
Reproductive Success ◽  
Site Selection ◽  
Egg Production ◽  
Nest Site ◽  
Morphological Characteristics ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Patch Selection ◽  
Nest Selection ◽  
Nesting Sites

In birds, the environmental variables and intrinsic characteristics of the nest have important fitness consequences through its influence on the selection of nesting sites. However, the extent to which these variables interact with variables that operate at the landscape scale, and whether there is a hierarchy among the different scales that influences nest-site selection, is unknown. This interaction could be crucial in burrowing birds, which depend heavily on the availability of suitable nesting locations. One representative of this group is the burrowing parrot, Cyanoliseus patagonus that breeds on specific ravines and forms large breeding colonies. At a particular site, breeding aggregations require the concentration of adequate environmental elements for cavity nesting, which are provided by within ravine characteristics. Therefore, intrinsic ravine characteristics should be more important in determining nest site selection compared to landscape level characteristics. Here, we assess this hypothesis by comparing the importance of ravine characteristics operating at different scales on nest-site selection and their interrelation with reproductive success. We quantified 12 characteristics of 105 ravines in their reproductive habitat. For each ravine we quantified morphological variables, distance to resources and disturbance as well as nest number and egg production in order to compare selected and non-selected ravines and determine the interrelationship among variables in explaining ravine differences. In addition, the number of nests and egg production for each reproductive ravine was related to ravine characteristics to assess their relation to reproductive success. We found significant differences between non-reproductive and reproductive ravines in both intrinsic and extrinsic characteristics. The multidimensional environmental gradient of variation between ravines, however, shows that differences are mainly related to intrinsic morphological characteristics followed by extrinsic variables associated to human disturbance. Likewise, within reproductive ravines, intrinsic characteristics are more strongly related to the number of nests. The probability of producing eggs, however, was related only to distance to roads and human settlements. Patterns suggest that C. patagonus mainly selects nesting sites based on intrinsic morphological characteristics of ravines. Scale differences in the importance of ravine characteristics could be a consequence of the particular orography of the breeding habitat. The arrangement of resources is associated to the location of the gullies rather than to individual ravines, determining the spatial availability and disposition of resources and disturbances. Thus, nest selection is influenced by intrinsic characteristics that maximize the fitness of individuals. Scaling in nest-selection is discussed under an optimality approach that partitions patch selection based on foraging theory.

Nests built on power lines: Nest-site selection by long-tailed broadbills (Psarisomus dalhousiae) in Nonggang of Guangxi, China

2020 ◽  
Vol 13 (3) ◽  
pp. 63-69
Author(s):  
Bo Zhou ◽  
Changzhang Feng ◽  
Wei Liang
Keyword(s):  
Site Selection ◽  
Nest Site ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Power Lines ◽  
Nest Sites ◽  
Site Characteristics ◽  
Survival And Development ◽  
Selection Of

The quality of breeding habitat may directly affect the survival and development of progeny. Therefore, the selection of a suitable nest-site is an important factor affecting the reproductive success of birds. The most important reason for a bird’s reproductive failure is nest predation. Predation may cause birds to change their nest-sites and even nest morphology. Here we investigated the nest-site characteristics by long-tailed broadbills ( Psarisomus dalhousiae) in Nonggang, Guangxi, southwestern China. Our results showed that long-tailed broadbills in Nonggang mainly build their nests on power lines (88.5%) and nest-site selection was mainly affected by predation pressure and food resources. At the same time, nest-site concealment was trade-off against predator avoidance. This anti-predator strategy effectively utilizes human infrastructure.

scholarly journals Nest site selection and nest survival of Black-backed Woodpeckers after wildfire

The Condor ◽  
2019 ◽  
Vol 121 (3) ◽  
Author(s):  
Andrew N Stillman ◽  
Rodney B Siegel ◽  
Robert L Wilkerson ◽  
Matthew Johnson ◽  
Christine A Howell ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Site Selection ◽  
Nest Site ◽  
Nest Survival ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Nesting Ecology ◽  
Management Actions ◽  
Daily Nest Survival ◽  
Patch Configuration

Abstract Recently burned coniferous forests host wildlife communities that respond to variation in burn severity, post-fire habitat structure, and patch configuration. Habitat selection theory predicts that birds inhabiting these variable post-fire landscapes will select nesting locations that confer an adaptive advantage through increased fitness and reproductive success. Understanding the effect of post-fire habitat on avian nesting ecology can provide valuable information to guide restoration and management after wildfire. The Black-backed Woodpecker (Picoides arcticus) is strongly associated with recently burned forests in the western United States, where it is used as an indicator species for the effects of post-fire forest management. Between 2011 and 2018, we located and monitored 118 Black-backed Woodpecker nests in burned forests of northern California. We evaluated the influence of habitat and nest characteristics on nest site selection and daily nest survival. Our results demonstrate a pattern of neutral congruence between habitat selection and fitness. Black-backed Woodpeckers showed strong selection for each of the nest habitat variables that we measured: woodpeckers selected moderately sized trees in areas of high snag density burned at high severity, but also in areas relatively close to low-severity or unburned edges. However, only nest initiation date affected nest survival, with decreased survival in late-season nests. Our results suggest that management actions aimed at maintaining breeding habitat for Black-backed Woodpeckers should prioritize retention and creation of pyrodiverse landscapes that include dense stands of snags (>5 snags per 100 m2) within ~500 m of forest that burned at low severity or remained unburned.

Nest-site selection of a subarctic-breeding shorebird: evidence for tree avoidance without fitness consequences

2020 ◽  
Vol 98 (9) ◽  
pp. 573-580 ◽  
Author(s):  
G.I. Holmes ◽  
L. Koloski ◽  
E. Nol
Keyword(s):  
Site Selection ◽  
Vegetation Change ◽  
Nest Site ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Nest Sites ◽  
The North ◽  
Fitness Consequences ◽  
Site Characteristics

Vegetation communities in the subarctic are at risk of change due to climate-driven tree and shrub encroachment. Vegetation change may lead to unsuitable habitat for arctic-breeding birds, many of whom are declining. Although many possible factors are contributing to their decline, loss of breeding habitat could be a major contributor. We examined nest-site selection in Dunlin (Calidris alpina hudsonia (Todd, 1953)), a shorebird that nests in open fen habitats in the Churchill, Manitoba, Canada, region. Our objective was to determine whether this species avoids treed habitats and the possible fitness consequences for this. We examined the role of vegetative horizontal and vertical concealments on nest-site selection and nest fate. Dunlin selected nest sites with lower densities of trees than present at unused sites (40 m radius). Both horizontal and vertical concealments were significantly greater at nests than at unused sites, and horizontal concealment was greatest in the north. No measure of tree density or height, or concealment, significantly predicted nest fate. Although Dunlin appear to select nest sites that may minimize exposure to northerly winds and that may provide cover against potential predators, the current nest-site characteristics are not reinforced by contemporary selection.

scholarly journals Behavioural traits modulate the use of heterospecific social information for nest site selection: experimental evidence from a wild bird population

2020 ◽  
Vol 287 (1925) ◽  
pp. 20200265 ◽  
Author(s):  
Jennifer Morinay ◽  
Jukka T. Forsman ◽  
Marion Germain ◽  
Blandine Doligez
Keyword(s):  
Habitat Selection ◽  
Site Selection ◽  
Nest Site ◽  
Social Information ◽  
Reproductive Investment ◽  
Information Use ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Ficedula Albicollis ◽  
Underlying Mechanisms

The use of social information for making decisions is common but can be constrained by behavioural traits via, for example, the ability to gather information. Such constrained information use has been described in foraging habitat selection; yet it remains unexplored in the breeding habitat selection context, despite potentially strong fitness consequences. We experimentally tested whether three behavioural traits (aggressiveness, boldness and neophobia) affected the use of heterospecific social information for nest site selection in wild collared flycatchers Ficedula albicollis . Flycatchers have previously been found to copy or reject an artificial apparent preference of tits (their main competitors) for a nest site feature: they preferred nest-boxes with the same or a different feature, depending on tit early reproductive investment. Here, we confirmed this result and showed that shy individuals and less aggressive old males (i.e. 2 years old or older) copied tit apparent preference, while more aggressive old males rejected the tit preference. Aggressiveness and boldness may allow males to access more information sources or affect males' interactions with dominant tits when selecting a nest site. Our study highlights the links between variation in behaviours and social information use for breeding habitat selection and calls for further work to explore underlying mechanisms.

scholarly journals Nest-site selection, reproductive ecology and shifts within core-use areas of Black-necked Cranes at the northern limit of the Tibetan Plateau

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2939 ◽  
Author(s):  
Lixun Zhang ◽  
Bei An ◽  
Meilin Shu ◽  
Xiaojun Yang
Keyword(s):  
Water Depth ◽  
Site Selection ◽  
Nest Site ◽  
Nest Survival ◽  
Habitat Type ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Nest Density ◽  
Food Density ◽  
The Tibetan Plateau

We investigated population dynamics, breeding pairs, breeding habitat selection, nest density, distance between neighboring nests, nest survival, reproductive success, and recruitment rate for Black-necked Cranes (BNC, Grus nigricollis) during 2013–2015 in Yanchiwan National Nature Reserve (YCW), Gansu, China. Numbers of BNC and breeding pairs remained relatively stable at around 140 individuals and 40 pairs. Recruitment rates ranged from 15.7% to 25.8%. The average nest distance was 718.66 ± 430.50 m (2013), 1064.51 ± 323.99 m (2014) and 534.99 ± 195.45 m (2015). Average nest survival rate, hatching success, and breeding success of all 29 nests were 65.56 ± 5.09%, 57.04 ± 6.12% and 32.78% ± 2.55. Water depth, water body area, and distance to land were positively related to nest survival, while disturbance level showed a negative relationship. However, nest site selection of BNC was determined by habitat type, disturbance and water depth. BNC often foraged in mudflats and freshwater marsh but seldom foraged in saline-alkali wet meadows due to food density and quantity in April, the month when BNC choose nest sites. Conservation strategies based on habitats should consider ecological factors that may not be well predicted by nest site selection. Shifts within core-use areas from satellite tracking of BNC demonstrated that maintaining populations demands that conservation areas are large enough to permit breeding BNC changes in space use. Our results are important for conservation management and provide quantitative reproductive data for this species.

Nesting success and nest-site selection by a neotropical migrant in a fragmented landscape

2000 ◽  
Vol 78 (5) ◽  
pp. 858-863 ◽  
Author(s):  
Isabelle A Bisson ◽  
Bridget JM Stutchbury
Keyword(s):  
Site Selection ◽  
Vegetation Cover ◽  
Forest Canopy ◽  
Nest Site ◽  
Nesting Success ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Neotropical Migrant ◽  
Hooded Warblers ◽  
A Site

Information on breeding-habitat requirements for neotropical migrants is important for managing remnant woodlots used by these species. In 1998, we examined nest-site selection and nesting success of hooded warblers (Wilsonia citrina) in seven woodlots of the highly fragmented Carolinian Forest in southwestern Ontario, Canada. We sampled and compared 23 nest and unoccupied sites. We recorded number of eggs, number of nestlings, and number of young fledged, as measures of productivity, and the presence of cowbird (Molothrus ater) parasitism. Nest sites had an overall higher percentage of vegetation cover than unoccupied sites (U [Formula: see text] 75.0, P < 0.04) and a lower basal area of trees with a diameter at breast height between 7.5 and 15 cm (U = 376.0, P = 0.014). Our best logistic regression model showed that the probability of a site being occupied by nesting hooded warblers increased with the height of the subcanopy and with the percentage of vegetation cover at the 1- to 2-m height interval. The model correctly classified 74.6% of the nest and unoccupied sites. Nest survivorship for the entire nesting period was estimated at 67.1%. Cowbird parasitism was low (18%). No nest-site characteristics were correlated with any of the productivity parameters (rs[Formula: see text] 0.663, P [Formula: see text] 0.536, n = 17). We conclude that canopy gaps and understory vegetation, rather than forest maturity, appear to be the limiting factors affecting the selection of a site by hooded warblers. Further research should focus on the use of gaps by breeding hooded warblers, and logging prescriptions should be formulated to include the creation of openings in the forest canopy.

scholarly journals Breeding productivity, nest-site selection and conservation needs of the endemic Turkestan Ground-jay Podoces panderi

2020 ◽  
Vol 161 (4) ◽  
pp. 1175-1183
Author(s):  
Robert J. Burnside ◽  
Alex L. Brighten ◽  
Nigel J. Collar ◽  
Valentin Soldatov ◽  
Maxim Koshkin ◽  
...  
Keyword(s):  
Site Selection ◽  
Nest Site ◽  
Habitat Degradation ◽  
Wide Spectrum ◽  
Nest Site Selection ◽  
Breeding Habitat ◽  
Arid Environments ◽  
Predator Species ◽  
Monitoring Protocols ◽  
Nest Predators

Abstract The Turkestan Ground-jay Podoces panderi, a corvid endemic to the deserts of Central Asia, is both understudied and under-protected. Using standardised nest-monitoring protocols and nest cameras, we estimated its breeding productivity for the first time as 0.586 fledglings per nesting attempt (inter-quartile range, IQR 0.413‒0.734), strongly constrained by a diverse set of predator species (accounting for 88% of failures), supporting the broad pattern that a wide spectrum of nest predators operate in arid environments. The probability of nest success for the 35 days from the start of incubation to fledging was low, 0.186 $$\pm$$ ± 0.06 se (N = 37), with no influence of season date, nest height or nest shrub species. However, pervasive shrub harvest severely limited availability of taller shrubs for nest-site selection, and thus our ability to detect any effect of height on nest survival. Mean clutch size was 4.8 $$\pm$$ ± 0.8 sd while hatching probability of an egg from a clutch surviving incubation was 0.800 $$\pm$$ ± 0.050 se and fledging probability was 0.824 $$\pm$$ ± 0.093 se for individual chicks in successful nests (i.e. that fledged one or more chicks). Two shrub genera, saxaul Haloxylon spp. and Calligonum spp., were used for nesting more frequently than expected ($${\chi }_{15}^{2}$$ χ 15 2 = 784.02, P < 0.001), highlighting their importance to breeding habitat suitability. This near-sole reliance on these taller shrub genera, both targeted for illegal cutting, indicates that habitat degradation may lead to increased predation and declines in productivity. Habitat conservation is, therefore, likely to be the most important management strategy for the species and other components of desert systems, as management of so diverse a set of nest predators would be both impractical and inappropriate.

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