Nest site selection and efficacy of artificial nests for breeding success of Scarlet Macaws Ara macao macao in lowland Peru

Olah, George; Vigo, Gabriela; Heinsohn, Robert; Brightsmith, Donald J.

doi:10.1016/j.jnc.2013.11.003

Cited by 54 publications

(67 citation statements)

References 64 publications

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“…Such human impacts are apparently the most serious factors threatening the survival of this species. There have been previous successful cases in which nest materials have been provided to wild birds (BirdLife International [2008]; Olah et al [2014]). Therefore, if we recognize the value of such wildlife, we must fund conservation efforts even when they may appear to be interventions.…”

Section: Need For Conservation Effortsmentioning

confidence: 99%

Plastic Marine Debris Used as Nesting Materials of the Endangered Species Black-Faced Spoonbill Platalea minor Decreases by Conservation Activities

Lee¹,

Jang²,

Hong³

et al. 2015

Journal of the Korean Society for Marine Environment & Ener

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− Disturbance to marine wildlife is a serious negative impact of marine debris. In this study, the percentages of Black-faced Spoonbill nests that included plastic marine debris were calculated from surveys conducted on an islet named Suhaam off the western coast of South Korea. The percentages of nests including plastic decreased from 71% in 2010 to 37% in 2011 to 33% in 2012. The total number of nests increased from 28 in 2010 to 38 in 2011 to 43 in 2012. These differences in nests and nesting materials were possibly due to natural nesting materials such as tree branches and rice straws that were provided at the breeding site as a protective action in 2011 and 2012. Additional conservation efforts should be made to prevent further negative impacts from marine debris.

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Section: Need For Conservation Effortsmentioning

confidence: 99%

Plastic Marine Debris Used as Nesting Materials of the Endangered Species Black-Faced Spoonbill Platalea minor Decreases by Conservation Activities

Lee¹,

Jang²,

Hong³

et al. 2015

Journal of the Korean Society for Marine Environment & Ener

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“…Therefore, a simple and frequently applied method in conservation of cavity-nesting bird species is the supplementation of artificial nest-boxes. This method is efficient in the conservation of secondary cavity-nesters and may contribute to the increase of population size in threatened bird species (Newton 1994, Gottschalk et al 2011, Olah et al 2014. Although nest-box provisioning is typically helpful for bird conservation, it should be applied with caution, as nest-boxes in low-quality habitats may serve as ecological traps and make unsuitable sites attractive for birds with decreased reproductive success and increased mortality (Klein et al 2007, Rodriguez et al 2011.…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of nest-box supplementation for the conservation of European rollers (Coracias garrulus)

Kiss

Tokody²,

Ludnai

et al. 2017

Acta Zool Acad Sci H

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Provisioning of artificial nest-boxes proved to be an effective method to make suitable breeding sites for secondary cavity nester birds due to the lack of natural hollows. The European roller (Coracias garrulus) is a threatened bird species in Europe, which suffered a serious decline throughout its breeding range. Changing agricultural practices seem to be the main causes attributed to the shortage of suitable breeding sites. In this study we aimed to investigate which factors affect the occupancy rate of newly provided nest-boxes. Four-year rollers' occupancy data were analysed by generalized linear models. Our results showed that nest-box characteristics (holder type and height above ground) and the presence of conspecifics significantly influenced rollers' nest-box occupancy. We conclude that nest-box visibility, height and the presence of conspecifics should also be considered when starting a nest-box supplementation program to ensure an effective method for the conservation of rollers.

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“…Although nesting adults roost inside cavities with their nestlings, the increased mass of larger family groups may provide thermoregulatory benefits to all members. Additionally, increased clutch size may also provide increased insurance against incubation losses (Renton and Salinas-Melgoza 2004;Olah et al 2014), when the effects of an adverse nest microclimate may be more manifest (Webb 1987;Beissinger et al 2005). Indeed, during this study we observed that although broods were relatively large (i.e.…”

Section: Clutch Size and Factors Affecting Itmentioning

confidence: 54%

Lophozonia tree cavities used for nesting by Slender-billed Parakeets (Enicognathus leptorhynchus) in the central valley of southern Chile: a potentially vanishing keystone resource

White

Jiménez

2017

Avian Res

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Background:The Slender-billed Parakeet (Enicognathus leptorhynchus) is a psittacine endemic to southern Chile and an obligate secondary cavity-nester. In the central valley of southern Chile, most (94%) of the known Slender-billed Parakeet nests have occurred in large, mature southern beech (Lophozonia obliqua) trees (locally known as "pellines"). As relicts of the original old-growth forests of southern Chile, most pellines have been lost due to extensive landclearing throughout the region, potentially threatening long-term persistence of the Slender-billed Parakeet. Methods:We conducted our study in the central valley of southern Chile, near the city of Osorno during three consecutive nesting seasons (November-January, 2008-2011. Nest trees used by Slender-billed Parakeets were located by direct observation of parakeet activities and through interviews with local residents, some of whom were former parrot nest poachers. Nest cavities were accessed, inspected and measured using single-rope climbing techniques. We report means, standard errors, 95% confidence intervals and ranges for 11 cavity-related variables. We also report clutch sizes encountered in active nests, and age estimates of nest trees based on known growth rates of Lophozonia trees in southern Chile. Linear regressions were used to evaluate potential relationships between cavity-related variables and clutch size. Results:We located and measured 38 Lophozonia tree cavities used for nesting by Slender-billed Parakeets. Compared to those used by other psittacines, nest trees were relatively large, averaging 30.4 ± 1.1 m in height with a mean diameter at breast height of 134.5 ± 4.7 cm. Based on estimated annual diameter increment, ages of nest trees ranged from approximately 209-485 years. Nest cavities entrances averaged 12.5 ± 0.9 m in height above ground level. Cavity entrance widths averaged 51.0 ± 13.3 cm (vertical) by 11.5 ± 0.7 cm (horizontal). Cavity entrance orientations were apparently random, with no directional preferences detected. Nest cavities were also relatively large, with a mean internal diameter of 39.6 ± 2.4 cm and mean depth of 90.3 ± 24.2 cm. Clutch sizes (2-9) were unusually large for psittacines of this size (ca. 280-300 g) and broods of up to seven well-developed nestlings were observed. Conclusions:We found that the deep and spacious cavities provided by pellines facilitate successful rearing of large broods, thereby maximizing productivity and fitness. The existence of pellines has apparently allowed Slender-billed Parakeets to adapt successfully to a wholesale loss of ancestral habitat to anthropogenic modifications. Immediate and strategic conservation measures, such as protection of existing pellines and the regeneration and recruitment of additional ones, are recommended for ensuring the survival of Slender-billed Parakeet populations throughout the central valley of southern Chile.

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Nest site selection and efficacy of artificial nests for breeding success of Scarlet Macaws Ara macao macao in lowland Peru

Cited by 54 publications

References 64 publications

Plastic Marine Debris Used as Nesting Materials of the Endangered Species Black-Faced Spoonbill Platalea minor Decreases by Conservation Activities

Plastic Marine Debris Used as Nesting Materials of the Endangered Species Black-Faced Spoonbill Platalea minor Decreases by Conservation Activities

The effectiveness of nest-box supplementation for the conservation of European rollers (Coracias garrulus)

Lophozonia tree cavities used for nesting by Slender-billed Parakeets (Enicognathus leptorhynchus) in the central valley of southern Chile: a potentially vanishing keystone resource

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