Breeding birds of Ontario : nidiology and distribution /

James, Ross D.; Peck, George

doi:10.5962/bhl.title.60694

Cited by 100 publications

(134 citation statements)

References 10 publications

(15 reference statements)

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“…This conclusion was supported by the observation that ospreys routinely nest in exposed situations with little surrounding forest cover, such as beaver-controlled wetlands and recent burns (Swenson 1981, Peck andJames 1983). Saurola (1997) suggested that habitat suitability may be maintained if nests, alternate nests, perch sites, and roost sites are provided and a buffer of at least 50 m of live trees is retained to screen nests from predators, competitors, and wind.…”

Section: Revising Direction: Mitigating the Effects Of Habitat Alteramentioning

confidence: 54%

Forest management and stick-nesting birds: New direction for mitigation in Ontario

Naylor¹

2009

The Forestry Chronicle

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Forest management operations (harvest, renewal, tending, road construction and use) may affect the occupancy or productivity of nest sites used by stick-nesting birds (eagles, ospreys, herons, hawks, owls, corvids) either by directly disrupting breeding activities, altering habitat suitability, or creating new access that may lead to subsequent disturbance of nest sites by other forest users. On public land in Ontario, potential effects are mitigated through an area-of-concern planning approach that involves placement of buffers around nests that restrict the timing of forest management operations, habitat alteration, and the construction of new roads. Early direction developed in the 1980s was based largely on expert opinion. The Ontario Ministry of Natural Resources (OMNR) has reviewed and revised this direction to incorporate new understanding of habitat requirements and the effects of forest management operations. Case studies are provided to show how published literature, directed studies, and the precautionary principle were used to revise direction for ospreys and great blue herons. For many species, this review led to a reduction in the size of buffers deemed necessary to mitigate the effects of forest management operations. Despite the increased use of scientific evidence, there is still uncertainty about the effects of forest management operations on stick-nesting birds and the effectiveness of proposed direction. OMNR is developing a monitoring plan to evaluate the effectiveness of revised direction as part of its cycle of adaptive policy development.Key words: buffers, stick-nesting birds, eagles, ospreys, herons, hawks, owls, disturbance, habitat alteration, access RÉSUMÉLes opérations d'aménagement forestier (coupe, régénération, entretien, construction et utilisation de chemin forestier) peuvent entraîner des effets sur l' occupation ou la productivité des sites de nidification utilisés par les oiseaux qui nichent en hauteur (aigles, balbuzards, hérons, faucons, hiboux, corvidés) soit en interrompant directement leurs activités d'accouplement, soit en modifiant la qualité de l'habitat ou encore en créant un nouvel accès qui pourrait entraîner une perturbation subséquente de leur site de nidification par d'autres utilisateurs du milieu forestier. Sur les terres publiques de l'Ontario, les effets potentiels sont atténués par une approche de planification des zones sensibles qui comporte la mise en place de zones tampons autour des nids et qui régit le calendrier des opérations d'aménagement forestier, la modification de l'habitat et la construction de nouveaux chemins. Les premières directives élaborées au début des années 1980 découlaient en grande partie de l'avis des experts. Le Ministère des Richesses naturelles de l'Ontario (MRNO) a révisé et reformulé ces directives pour y incorporer les nouvelles connaissances acquises sur les qualités de l'habitat et les effets des opérations d'aménagement forestier. Nous présentons des études de cas afin d'illustrer comment les textes publiés, les é...

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Section: Revising Direction: Mitigating the Effects Of Habitat Alteramentioning

confidence: 54%

Forest management and stick-nesting birds: New direction for mitigation in Ontario

Naylor¹

2009

The Forestry Chronicle

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“…In the Western United States, Pileated Woodpeckers reach the southern extent of their range in montane regions of Western Montana and Northern Idaho (Bull and Jackson 2011). The role of Pileated Woodpeckers in providing nest holes for cavity-nesting owls in the BNF may therefore be of less importance than those reported for regions where this woodpecker species is more abundant, i.e., Ontario, Canada (Peck andJames 1983, Bull et al 1990). For our study, we most commonly detected Pileated Woodpeckers in the northern portion of the BNF, which is characterized by fewer monotypic stands of Douglas-fir and ponderosa and higher landcover diversity.…”

Section: Discussionmentioning

confidence: 76%

Patterns of co-occurrence in woodpeckers and nocturnal cavity-nesting owls within an Idaho forest

Scholer¹,

Leu²,

Belthoff³

2018

ACE

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ABSTRACT. Few studies have examined the patterns of co-occurrence between diurnal birds such as woodpeckers and nocturnal birds such as owls, which they may facilitate. Flammulated Owls (Psiloscops flammeolus) and Northern Saw-whet Owls (Aegolius acadicus) are nocturnal, secondary cavity-nesting birds that inhabit forests. For nesting and roosting, both species require natural cavities or, more commonly, those that woodpeckers create. Using day and nighttime broadcast surveys (n = 150 locations) in the Rocky Mountain biogeographic region of Idaho, USA, we surveyed for owls and woodpeckers to assess patterns of co-occurrence and evaluated the hypothesis that forest owls and woodpeckers co-occurred more frequently than expected by chance because of the facilitative nature of their biological interaction. We also examined co-occurrence patterns between owl species to understand their possible competitive interactions. Finally, to assess whether co-occurrence patterns arose because of species interactions or selection of similar habitat types, we used canonical correspondence analysis (CCA) to examine habitat associations within this cavity-nesting bird community. We found that Flammulated Owls co-occurred more with Hairy Woodpeckers (Picoides villosus), Northern Saw-whet Owls co-occurred with Northern Flickers (Colaptes auratus) and Red-naped Sapsuckers (Sphyrapicus nuchalis) and, when primary excavators were considered as a group, each species of owl was positively associated with the presence of woodpeckers. The owl species were distributed independently of one another suggesting a lack of competitive interactions. The CCA had relatively low explanatory power but suggested that habitat associations alone did not explain the patterns of positive co-occurrence we observed: Flammulated Owls and Hairy Woodpeckers associated with different habitats and Northern Saw-whet Owls, Northern Flickers, and Red-naped Sapsuckers appeared as habitat generalists. We interpret these patterns of co-occurrence and habitat use as evidence that woodpeckers facilitate presence of these species of owl and suggest management for forest owls could also include focus on the diurnal species with which they appear to associate. Profils de cooccurrence des pics et des strigidés nocturnes nichant dans des cavités dans une forêt de l'IdahoRÉSUMÉ. Peu d'études ont examiné la cooccurrence des oiseaux diurnes, comme les pics, et les oiseaux nocturnes, comme les strigidés. Les Petits-ducs nains (Psiloscops flammeolus) et les Petites Nyctales (Aegolius acadicus) sont des utilisateurs secondaires de cavités nocturnes nichant en forêt. Pour nicher et se reposer, ces deux espèces ont besoin de cavités naturelles ou, plus couramment, celles excavées par des pics. Au moyen de relevés diurnes et nocturnes accompagnés d'enregistrements sonores (n = 150 sites) réalisés dans la région biogéographique des Montagnes Rocheuses en Idaho, aux États-Unis, nous avons inventorié les strigidés et les pics afin d'évaluer leur tendance à cooccurrer et de valider l'hypo...

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“…Occasionally in the far north they have nested in flooded willow (Salix spp.) or heath bogs (Peck and James 1983). Vegetation structure rather than species composition dictated suitability of nest substrates in eastern South Dakota (Naugle et al 2000).…”

Section: Rangewide Habitatmentioning

confidence: 99%

Population Decline of Black Terns in Wisconsin: A 30-Year Perspective

2012

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Breeding birds of Ontario : nidiology and distribution /

Abstract: Cover. Wilson's Warbler, Wilsonia pusilla (Wilson) (p. 189). Drawing by Ross D. James.

Cited by 100 publications

References 10 publications

Forest management and stick-nesting birds: New direction for mitigation in Ontario

Forest management and stick-nesting birds: New direction for mitigation in Ontario

Patterns of co-occurrence in woodpeckers and nocturnal cavity-nesting owls within an Idaho forest

Population Decline of Black Terns in Wisconsin: A 30-Year Perspective

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