Nest-Site Selection in the MagpiePica picain a High-Density Urban Population of Sofia (Bulgaria)

AbstractNumerous studies have investigated the nest-site characteristics and selection of bird species, because these features often play a determining role in bird breeding success. In recent years researchers focused on urban environments as a source of novel conditions which provide breeding opportunities for species that are able to survive in human-altered environments. Although thrushes

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Influence of Habitat and Food Resource Availability on Common Raven Nest Site Selection and Reproductive Success in Mediterranean Forests

Birds ◽

10.3390/birds2030022 ◽

2021 ◽

Vol 2 (3) ◽

pp. 302-313

Author(s):

Amalia Segura ◽

Pelayo Acevedo

Keyword(s):

Reproductive Success ◽

Site Selection ◽

Habitat Structure ◽

Nest Site ◽

Food Resource ◽

Nest Site Selection ◽

High Density ◽

Mediterranean Forests ◽

Breeding Behavior ◽

Common Raven

Bird nest selection in forests can be influenced by the composition of key structural elements and resources. This has important consequences in terms of species population dynamics since it can determine reproduction success. Here, we assessed Common raven nest-site selection and reproductive success, and how these might be determined by foraging behavior and habitat structure. A previously documented breeding raven population that exerts high predation pressure on young Spur-thighed tortoises (Testudo graeca) in a Mediterranean forest was monitored. Generalized linear mixed models were performed to determine the singularities of the trees with nests and the drivers of reproductive success of breeding pairs of ravens. The results showed a high density of breeding pairs in the study area (0.8 pairs/km2), which selected taller trees in areas with higher bare ground cover and a high density of tortoises for nesting. Nests were spatially aggregated; breeding pairs occupied smaller territories and intraspecific competition seemed relaxed, reflecting the abundance of food resources. Most breeding pairs occasionally predated on young tortoises. Tortoises seem to play a part in raven reproductive success in our study area, which might be associated with the availability/catchability of young tortoises. The study illustrates that Spur-thighed tortoise distribution and abundance plays a role in the breeding behavior of ravens and is mediated by habitat structure. Understanding the drivers of nest-site selection and the breeding behavior of ravens is pivotal to implementing appropriate habitat management and conservation strategies across their distribution range, particularly in areas where ravens potentially affect threatened species.

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VIEWING HABITAT THROUGH ANOTHER LENS: BIRD NEST-SITE SELECTION AND PRODUCTIVITY ACROSS A BEACH THERMAL LANDSCAPE

10.1130/abs/2019se-326650 ◽

2019 ◽

Author(s):

Lauren Schaale ◽

◽

Joseph Baxley ◽

Narcisa Pricope ◽

Raymond M. Danner

Keyword(s):

Site Selection ◽

Nest Site ◽

Nest Site Selection ◽

Bird Nest

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Nest site selection and breeding ecology of the Ferruginous Duck (Aythya nyroca) in Algeria

Global Ecology and Conservation ◽

10.1016/j.gecco.2021.e01524 ◽

2021 ◽

Vol 26 ◽

pp. e01524

Author(s):

Karim Loucif ◽

Mohamed Cherif Maazi ◽

Moussa Houhamdi ◽

Haroun Chenchouni

Keyword(s):

Site Selection ◽

Nest Site ◽

Nest Site Selection ◽

Breeding Ecology

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Territory and Nest-Site Selection of Cerulean Warblers in Eastern Ontario

The Auk ◽

10.1093/auk/118.3.727 ◽

2001 ◽

Vol 118 (3) ◽

pp. 727-735 ◽

Cited By ~ 10

Author(s):

Jason Jones ◽

Raleigh J. Robertson

Keyword(s):

Site Selection ◽

Nest Site ◽

Deciduous Forest ◽

Spatial Scales ◽

Nest Site Selection ◽

Population Characteristics ◽

Dendroica Cerulea ◽

Large Trees ◽

Eastern Ontario ◽

Cerulean Warblers

Abstract We examined habitat selection by breeding Cerulean Warblers (Dendroica cerulea) at three spatial scales in eastern Ontario over three years (1997–1999). Territories were characterized by well-spaced large trees, with high canopies and dense foliage cover at heights between 12–18 m. Nesting habitat additionally was characterized by dense foliage cover above 18 m. The results of our nest-patch (0.04 ha circle around nest) and nest-site (0.01 ha circle) analyses indicate that male Cerulean Warblers may take active roles in nest-site selection when selecting territories. We conclude from our nest-patch and nest-site selection analyses that territories likely contain multiple nest patches and sites and that male Cerulean Warblers may defend areas with multiple nest patches or sites, which may attract females to settle with them. Whether or not Cerulean Warbler females use nest-site availability as a mate- or territory-choice cue remains unknown. We also tested the validity of a commonly made assumption that a random sampling of habitat by researchers is representative of the habitat actually available to birds and found that, in our study area, the assumption was invalid. Taken together, our results point toward the need to maintain sizeable stands of mature, deciduous forest to ensure the persistence of Cerulean Warblers in eastern Ontario. Population characteristics such as lower minimum area requirements and a resilience to habitat disturbance may make that an easier job in eastern Ontario than elsewhere in this species' breeding range.

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CHAPTER SIX. Nest-site Selection and the Physical Environment

Nest Building and Bird Behavior ◽

10.1515/9781400853625.86 ◽

1984 ◽

pp. 86-100

Keyword(s):

Site Selection ◽

Physical Environment ◽

Nest Site ◽

Nest Site Selection

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Ecology and nest-site selection of leatherback turtles Dermochelys coriacea

Biological Conservation ◽

10.1016/0006-3207(83)90047-2 ◽

1983 ◽

Vol 26 (1) ◽

pp. 47-56 ◽

Cited By ~ 44

Author(s):

N. Mrosovsky

Keyword(s):

Site Selection ◽

Nest Site ◽

Nest Site Selection ◽

Dermochelys Coriacea ◽

Leatherback Turtles ◽

Selection Of

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

Canadian Journal of Zoology ◽

10.1139/z05-107 ◽

2005 ◽

Vol 83 (9) ◽

pp. 1240-1245 ◽

Cited By ~ 8

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.

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