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144 results for “nest predation”
Supplementary material 4 from: Ribeiro-Silva L, Perrella DF, Biagolini-Jr CH, Zima PVQ, Piratelli AJ, Schlindwein MN, Galetti-Jr PM, Francisco MR (2018) Use of camera traps for detecting nest predation of birds in the Atlantic Forest of Brazil. Zoologia 35: 1-8. https://doi.org/10.3897/zoologia.35.e14678
Video of an Ocelot, Leopardus pardalis, depredating a nest of Gray-hooded Flycatcher, Mionectes rufiventris. The video shows the moment in which a nestling try to leave the nest and is captured in the air by the Ocelot. :
Supplementary material 3 from: Ribeiro-Silva L, Perrella DF, Biagolini-Jr CH, Zima PVQ, Piratelli AJ, Schlindwein MN, Galetti-Jr PM, Francisco MR (2018) Use of camera traps for detecting nest predation of birds in the Atlantic Forest of Brazil. Zoologia 35: 1-8. https://doi.org/10.3897/zoologia.35.e14678
Video of a nest of the Blue Manakin, Chiroxiphia caudata, being depredated by The Red-breasted Toucan, Ramphastos dicolorus. The video shows a young in late nestling stage being removed from the nest and being carried away by the toucan. :
Supplementary material 2 from: Ribeiro-Silva L, Perrella DF, Biagolini-Jr CH, Zima PVQ, Piratelli AJ, Schlindwein MN, Galetti-Jr PM, Francisco MR (2018) Use of camera traps for detecting nest predation of birds in the Atlantic Forest of Brazil. Zoologia 35: 1-8. https://doi.org/10.3897/zoologia.35.e14678
Video of the Red-breasted Toucan, Ramphastos dicolorus, consuming an egg of the Ruddy Quail-dove, Geotrygon montana. Seven days later, a second egg present in this nest was also consumed by a Red-breasted Toucan. :
Supplementary material 1 from: Ribeiro-Silva L, Perrella DF, Biagolini-Jr CH, Zima PVQ, Piratelli AJ, Schlindwein MN, Galetti-Jr PM, Francisco MR (2018) Use of camera traps for detecting nest predation of birds in the Atlantic Forest of Brazil. Zoologia 35: 1-8. https://doi.org/10.3897/zoologia.35.e14678
Video of the Collared Forest-falcon, Micrastur semitorquatus, depredating a nest of White-necked Thrush, Turdus albicollis, containing three eggs. In this cloudy day, the infrared LEDs were activated. :
Figure 1 in Egg predation and vertebrates associated with wild crocodilian nests in Mexico determined using camera-traps
Figure 1. Geographical location of the study areas and photographic records of eggs predation. Procyon lotor (a, e, f), Didelphis virginiana (b), Cuniculus paca (c), Nasua narica (d, g), and Caracara cheriway (h).
Figure 2 in Egg predation and vertebrates associated with wild crocodilian nests in Mexico determined using camera-traps
Figure 2. Non-linear regression models: (a)- Predator species increase with the number of vertebrates recorded in the areas of study. (b)- The number of nests lost decreases as crocodilian size increases.
Figure 3 in Nest-site microhabitat association of red-billed leiothrix in subtropical fragmented forest in central China: evidence for a reverse edge effect on nest predation risk?
Figure 3. Nonmetric multidimensional scaling (NMS) ordination of 237 sample units of microhabitat characteristics in the forest, and the joint plot of NMS scores with important microhabitat variables (r2> 0.2). The first and third axes represent 30% and 46% of the total variation, respectively.
Figure 4 in Nest-site microhabitat association of red-billed leiothrix in subtropical fragmented forest in central China: evidence for a reverse edge effect on nest predation risk?
Figure 4. Nonmetric multidimensional scaling (NMS) ordination of 134 sample units of microhabitat characteristics in the scrub-grassland, and the joint plot of NMS scores with important microhabitat variables (r2> 0.2). The first and second axes represent 78% and 15% of the total variation, respectively.
Figure 1 in Nest-site microhabitat association of red-billed leiothrix in subtropical fragmented forest in central China: evidence for a reverse edge effect on nest predation risk?
Figure 1. Study areas and vegetation types for nest-site selection of the red-billed leiothrix in Daweishan Nature Reserve (DSNR; 28°20′54″–28°28′47″N, 114°01′51″–114°12′52″E), Hunan Province, China.
Mesopredator predation risk limits northern bobwhite nesting habitat
Predators can significantly limit the amount of available habitat for vulnerable prey. Encouraging spatial segregation of predators and prey through habitat management prescriptions may be a useful tool to increase productivity and abundances of prey species of conservation concern. We estimated the total area of low-risk nesting habitat by interacting predator habitat selection models with northern bobwhite (Colinus virginianus) nest-site selection models. We used trail cameras, transect sampling, spotlighting transects, and incidental tracking to survey and map occurrences of mesopredators at a site in western Oklahoma, USA. We created broad-scale resource selection function models for bobwhite nest-site and mesopredator habitat selection using generalized linear models to create maps of occurrence probability in ArcGIS. Bobwhite nests were more likely to be depredated in areas of high selection by coyotes (Canis latrans) and striped skunk (Mephitis mephitis) compared to areas with low mesopredator selection. Approximately 392 ha of bobwhite nesting habitat (17%) had low probabilities of selection by both coyotes and striped skunks. Our results demonstrate the need for incorporating species' interactions into estimations of available habitat. Based on the total area of highly selected cover by northern bobwhite, approximately 29% of the study area would have been deemed suitable for nesting. However, only 5% of that area is predicted to have low predation risk.
Experimental reduction of a primary nest predator fails to decrease nest predation rates of sagebrush songbirds
<p>Predator removal comprises one management strategy to increase the reproductive success of a prey species of concern, particularly within human-altered landscapes. The efficacy of such an approach, however, depends partly on the extent to which predation risk is additive or compensatory, which remains unknown for many systems. We experimentally reduced the local abundance of deer mice (<em>Peromyscus</em> <em>maniculatus</em>), a primary nest predator of three sagebrush-obligate songbirds (Brewer's Sparrow [<em>Spizella</em> <em>breweri</em>], Sagebrush Sparrow [<em>Artemisiospiza</em> <em>nevadensis</em>], and Sage Thrasher [<em>Oreoscoptus</em> <em>montanus</em>]) during May ̶ August 2019 in western Wyoming, USA to assess whether nest predation risk was additive or compensatory and whether nest predator removal could comprise a potentially effective management tool. Deer mouse removal did not affect the daily nest survival of songbirds between experimental and control plots, despite a reduction of 68 ̶ 85% in deer mouse abundance within treatment areas. Nest predation in this system therefore likely operated in a compensatory way, in which deer mice that escaped removal, new immigrants, or other species of nest predator maintained similar levels of nest predation risk regardless of the prevalence of a primary predator. We caution that predator removal may not be an effective management tool in systems that lack barriers to predator immigration or have several alternative species of predators, even when a single species typically is responsible for the majority of predation events. </p>
Data from: Long-term and large-scale analyses of nest predation patterns in Australian songbirds and a global comparison of nest predation rates
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Data from: Climate change and nest predation affect shifts in timing and duration of breeding as well as reproductive success in a migratory species
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Data from: Spatio-temporal responses of predators to hyperabundant geese affect risk of predation for sympatric-nesting species
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Data from: Nest predation risk and growth strategies of passerine species: grow fast or develop traits to escape risk?
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The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae)
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Data from: Global pattern of nest predation is disrupted by climate change in shorebirds
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Data from: Deceiving predators: linking distraction behavior with nest survival in a ground-nesting bird
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Data from: Predation risk landscape modifies flying and red squirrel nest site occupancy independently of habitat amount
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Data from: Nest predation in New Zealand songbirds: exotic predators, introduced prey and long-term changes in predation risk
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Allen Brain Atlas
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