The role of body size in nest‐site selection by secondary cavity‐nesting birds in a subtropical Chaco forest

Ibis ◽  
2021 ◽  
Author(s):  
Facundo G. Di Sallo ◽  
kristina L. Cockle
Ibis ◽  
2016 ◽  
Vol 158 (4) ◽  
pp. 784-795 ◽  
Author(s):  
Júlia Capdevila ◽  
Manel Puigcerver ◽  
Sònia López ◽  
Elisabet Pérez‐Masdeu ◽  
Eduardo García‐Galea ◽  
...  

2011 ◽  
Vol 81 (5) ◽  
pp. 1077-1081 ◽  
Author(s):  
Z.R. Stahlschmidt ◽  
J. Brashears ◽  
D.F. DeNardo

Ethology ◽  
2011 ◽  
Vol 117 (3) ◽  
pp. 254-264 ◽  
Author(s):  
Samantha Gilbert ◽  
Lee A. Lewis ◽  
Stanley S. Schneider

2021 ◽  
Vol 180 ◽  
pp. 167-178
Author(s):  
Jennifer Morinay ◽  
Federico De Pascalis ◽  
Davide M. Dominoni ◽  
Michelangelo Morganti ◽  
Francesco Pezzo ◽  
...  

2020 ◽  
Author(s):  
Archi Sehgal ◽  
Krishan Kumar ◽  
Rubina Rajan ◽  
Upmanyu Hore

AbstractActive nests of Gyps bengalensis White-rumped Vulture depends on elevation and aspects for nest site selection, while feeding station plays a significant role for determining the position of the nesting sites.This study attempted to record nest count for the breeding period 2018, identify key variables for the nest site selection and understand the role of feeding station in the nest site selection. Nest counts were conducted during the breeding period, each nest was categorized into active and inactive nest based on assesment of different components. Simultaneously, different variables (tree height, tree species, elevation and aspect) were recorded for each nest. Aerial distance was used to determine the role of feeding station for selecting the nesting sites. From the 24 nesting sites, 352 active nests were recorded, and a significant Pearson’s correlation for elevation and aspect were drawn. We found, vulture prefer single tree species for nesting. We also found that, 71% (n = 17) nesting sites located within radial distance of 20 km of the feeding station. High congregration of active nests within short radial distance from feeding station, signify the positive impact of management of feeding station by the wildlife wing of Forest department since 2008, for the ex-situ conservation of critically endangered Gyps bengalensis White-rumped Vulture


2018 ◽  
Vol 373 (1746) ◽  
pp. 20170010 ◽  
Author(s):  
Madeleine Beekman ◽  
Benjamin P. Oldroyd

During reproductive swarming, a honeybee swarm needs to decide on a new nest site and then move to the chosen site collectively. Most studies of swarming and nest-site selection are based on one species, Apis mellifera . Natural colonies of A. mellifera live in tree cavities. The quality of the cavity is critical to the survival of a swarm. Other honeybee species nest in the open, and have less strict nest-site requirements, such as the open-nesting dwarf honeybee Apis florea . Apis florea builds a nest comprised of a single comb suspended from a twig. For a cavity-nesting species, there is only a limited number of potential nest sites that can be located by a swarm, because suitable sites are scarce. By contrast, for an open-nesting species, there is an abundance of equally suitable twigs. While the decision-making process of cavity-nesting bees is geared towards selecting the best site possible, open-nesting species need to coordinate collective movement towards areas with potential nest sites. Here, we argue that the nest-site selection processes of A. florea and A. mellifera have been shaped by each species' specific nest-site requirements. Both species use the same behavioural algorithm, tuned to allow each species to solve their species-specific problem. This article is part of the theme issue ‘Collective movement ecology’.


2020 ◽  
Vol 98 (9) ◽  
pp. 573-580 ◽  
Author(s):  
G.I. Holmes ◽  
L. Koloski ◽  
E. Nol

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.


2021 ◽  
Vol 95 ◽  
pp. 102791
Author(s):  
Kiera L. Kauffman ◽  
R. Dwayne Elmore ◽  
Craig A. Davis ◽  
Samuel D. Fuhlendorf ◽  
Laura E. Goodman ◽  
...  

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Mingju E ◽  
Tuo Wang ◽  
Shangyu Wang ◽  
Ye Gong ◽  
Jiangping Yu ◽  
...  

Abstract Background For secondary cavity-nesting bird species that do not add lining materials to nests, the presence of old nest material or organic remains that have accumulated within nest cavities from previous breeding events may be a cue of nest-site quality. These materials potentially contain information about past breeding success in con- and heterospecifics and may improve the thermal insulation of eggs during incubation. However, few studies have addressed whether the presence of old nest materials serves as a cue for cavity-nesting raptors when choosing specific nest sites. Methods We conducted a 9-year nest box experiment to test whether old nest materials from con- and heterospecifics serve as informative cues to the European Kestrel (Falco tinnunculus) when making nest selection decisions, as this species uses nest boxes without adding nesting material. Results The presence of old nest materials and entrance size best discriminated nest boxes occupied by European Kestrels from unoccupied boxes. Nest boxes containing conspecific organic remains, artificial dry leaf and branch material, and material left behind by Great Tits (Parus major) were reused at higher rates, especially those containing conspecific nest material, than nest boxes containing true or simulated nest materials from predators. In 2010, no single nest box was occupied by the same banded individual that occupied the box in the previous year (10 females and 2 males were banded in 2009). Conclusions European Kestrels preferred nest boxes containing old nest material over empty boxes, which is consistent with previous findings that they exploit con- and heterospecific cues when deciding where to settle and breed, as old nest or organic material provides substrate for incubating females. Kestrels may be able to assess the predation risks associated with a specific nest site based on experience or the presence of prey remains. The repeated use of nest boxes across breeding seasons by kestrels cannot be entirely ascribed to philopatry. This study provides evidence that old nest materials are potentially used as informative cues when making nest-site selection decisions in European Kestrels.


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