Search Results - "Leonard, Marty L."

Observer Effects and Avian-Call-Count Survey Quality: Rare-Species Biases and Overconfidence by Farmer, Robert G, Leonard, Marty L, Horn, Andrew G

“…Wildlife monitoring surveys are prone to nondetection errors and false positives. To determine factors that affect the incidence of these errors, we built an…”
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Breeding phenology and performance for four swallows over 57 years: relationships with temperature and precipitation by Imlay, Tara L., Mills Flemming, Joanna, Saldanha, Sarah, Wheelwright, Nathaniel T., Leonard, Marty L.

“…Climate change can drive population declines for many species, often through changes to their food supply. These changes can involve a mis‐timing between…”
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Effect of ambient noise on parent–offspring interactions in tree swallows by Leonard, Marty L., Horn, Andrew G., Oswald, Krista N., McIntyre, Emma

“…Many recent studies suggest that increased ambient noise can disrupt acoustic communication in animals and might ultimately decrease their reproductive…”
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No effect of insect abundance on nestling survival or mass for three aerial insectivores by Imlay, Tara L., Mann, Hilary A. R., Leonard, Marty L.

“…Swallows, along with other aerial insectivores, are experiencing steep population declines. Decreased insect abundance has been implicated as a potential cause…”
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Does ambient noise affect growth and begging call structure in nestling birds? by Leonard, Marty L., Horn, Andrew G.

“…Much of the research examining the effects of ambient noise on communication has focused on adult birds using acoustic signals in mate attraction and territory…”
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Do nestling Tree Swallows (Tachycineta bicolor) respond to parental alarm calls? by McIntyre, Emma, Horn, Andrew G, Leonard, Marty L

“…Nestling birds use a conspicuous begging display, which includes loud begging calls, to solicit food from their parents. Although these calls are important in…”
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Biological and environmental factors related to communal roosting behavior of breeding Bank Swallow (Riparia riparia) by Saldanha, Sarah, Taylor, Philip D., Imlay, Tara L., Leonard, Marty L.

“…Although communal roosting during the wintering and migratory periods is well documented, few studies have recorded this behavior during the breeding season…”
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Ambient noise and the design of begging signals by Leonard, Marty L, Horn, Andrew G

“…The apparent extravagance of begging displays is usually attributed to selection for features, such as loud calls, that make the signal costly and hence…”
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Individual-level Variation and Higher-level Interpretations of Space Use in Wide-ranging Species: An Albatross Case Study of Sampling Effects by Gutowsky, Sarah E, Leonard, Marty L, Conners, Melinda G, Shaffer, Scott A, Jonsen, Ian D

“…Marine ecologists and managers need to know the spatial extent of at-sea areas most frequented by the groups of wildlife they study or manage. Defining…”
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Characteristics and spatiotemporal variation of sei whale (Balaenoptera borealis) downsweeps recorded in Atlantic Canada by Macklin, Gabrielle F., Moors-Murphy, Hilary B., Leonard, Marty L.

“…The call characteristics and vocal behaviour of sei whales (Balaenoptera borealis) off eastern Canada, including potential spatiotemporal variation, is poorly…”
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Sheep in wolf's clothing: host nestling vocalizations resemble their cowbird competitor's by Pagnucco, Katie, Zanette, Liana, Clinchy, Michael, Leonard, Marty L

“…) nests with a brown-headed cowbird (…”
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Chronic noise exposure has context-dependent effects on stress physiology in nestling Tree Swallows (Tachycineta bicolor) by Obomsawin, Anik P., Mastromonaco, Gabriela F., Leonard, Marty L.

“…•We applied 65 dB (SPL) white noise to Tree Swallow nests.•Overall, noise exposure did not alter nestling stress physiology or immune function.•In noise,…”
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Ambient noise increases missed detections in nestling birds by Leonard, Marty L., Horn, Andrew G.

“…Ambient noise can mask acoustic cues, making their detection and discrimination difficult for receivers. This can result in two types of error: missed…”
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Ambient noise and parental communication of predation risk in tree swallows, Tachycineta bicolor by McIntyre, Emma, Leonard, Marty L., Horn, Andrew G.

“…Ambient noise can mask important acoustic signals used in a variety of communication systems, especially if signals are not adjusted to improve transmission in…”
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A review of the threats to adult survival for swallows (Family: Hirundinidae) by Imlay, Tara L., Leonard, Marty L.

“…Capsule: For declining migratory birds, including many aerial insectivores, such as swallows, there is evidence that adult survival is a demographic process…”
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A range-wide domino effect and resetting of the annual cycle in a migratory songbird by Gow, Elizabeth A, Burke, Lauren, Winkler, David W, Knight, Samantha M, Bradley, David W, Clark, Robert G, Bélisle, Marc, Berzins, Lisha L, Blake, Tricia, Bridge, Eli S, Dawson, Russell D, Dunn, Peter O, Garant, Dany, Holroyd, Geoff, Horn, Andrew G, Hussell, David J T, Lansdorp, Olga, Laughlin, Andrew J, Leonard, Marty L, Pelletier, Fanie, Shutler, Dave, Siefferman, Lynn, Taylor, Caz M, Trefry, Helen, Vleck, Carol M, Vleck, David, Whittingham, Linda A, Norris, D Ryan

“…Latitudinal differences in timing of breeding are well documented but how such differences carry over to influence timing of events in the annual cycle of…”
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Weather as a proximate explanation for fission–fusion dynamics in female northern long-eared bats by Patriquin, Krista J., Leonard, Marty L., Broders, Hugh G., Ford, W. Mark, Britzke, Eric R., Silvis, Alexander

“…Fission–fusion dynamics appear common among temperate bats where females form roost groups that change in size and composition, as females switch roosts almost…”
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Constructing and evaluating a continent-wide migratory songbird network across the annual cycle by Knight, Samantha M., Bradley, David W., Clark, Robert G., Gow, Elizabeth A., Bélisle, Marc, Berzins, Lisha L., Blake, Tricia, Bridge, Eli S., Burke, Lauren, Dawson, Russell D., Dunn, Peter O., Garant, Dany, Holroyd, Geoffrey L., Hussell, David J. T., Lansdorp, Olga, Laughlin, Andrew J., Leonard, Marty L., Pelletier, Fanie, Shutler, Dave, Siefferman, Lynn, Taylor, Caz M., Trefry, Helen E., Vleck, Carol M., Vleck, David, Winkler, David W., Whittingham, Linda A., Norris, D. Ryan

“…Determining how migratory animals are spatially connected between breeding and non-breeding periods is essential for predicting the effects of environmental…”
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Migration routes and stopover areas of Leach's Storm Petrels Oceanodroma leucorhoa by Pollet, Ingrid L, Ronconi, Robert A, Leonard, Marty L, Shutler, Dave

“…Little is known about the movements of small seabirds during migration, but such information is important for their conservation. Leach's Storm Petrel…”
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Sex-specific, seasonal foraging tactics of adult grey seals (Halichoerus grypus) revealed by state–space analysis by Breed, Greg A, Jonsen, Ian D, Myers, Ransom A, Bowen, W. Don, Leonard, Marty L

“…In many large pelagic animals, observing behavior is limited to observation by radio or satellite telemetry. In many cases, discriminating different behaviors…”
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