Search Results - "MacDougall, A"

Diversity loss with persistent human disturbance increases vulnerability to ecosystem collapse by MacDougall, A. S., McCann, K. S., Gellner, G., Turkington, R.

“…Persistent anthropogenic disturbance is shown simultaneously to drive plant species loss and stabilize some attributes of ecosystem function, analogous to a…”
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Many loci make light work: High individual diversity despite low population diversity and random mating at class I MHC in a Critically Endangered island songbird by MacDougall‐Shackleton, Elizabeth A.

“…Multi‐cellular organisms are under constant attack from parasites, making immune defence a critical aspect of fitness. In vertebrate animals, genes of the…”
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Olfactory camouflage and communication in birds by Grieves, Leanne A., Gilles, Marc, Cuthill, Innes C., Székely, Tamás, MacDougall‐Shackleton, Elizabeth A., Caspers, Barbara A.

“…ABSTRACT Smell is a sensory modality that is rarely considered in birds, but evidence is mounting that olfaction is an important aspect of avian behaviour and…”
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Soil net nitrogen mineralisation across global grasslands by Risch, A. C., Zimmermann, S., Ochoa-Hueso, R., Schütz, M., Frey, B., Firn, J. L., Fay, P. A., Hagedorn, F., Borer, E. T., Seabloom, E. W., Harpole, W. S., Knops, J. M. H., McCulley, R. L., Broadbent, A. A. D., Stevens, C. J., Silveira, M. L., Adler, P. B., Báez, S., Biederman, L. A., Blair, J. M., Brown, C. S., Caldeira, M. C., Collins, S. L., Daleo, P., di Virgilio, A., Ebeling, A., Eisenhauer, N., Esch, E., Eskelinen, A., Hagenah, N., Hautier, Y., Kirkman, K. P., MacDougall, A. S., Moore, J. L., Power, S. A., Prober, S. M., Roscher, C., Sankaran, M., Siebert, J., Speziale, K. L., Tognetti, P. M., Virtanen, R., Yahdjian, L., Moser, B.

“…Soil nitrogen mineralisation (N min ), the conversion of organic into inorganic N, is important for productivity and nutrient cycling. The balance between…”
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Preen gland microbiota of songbirds differ across populations but not sexes by Grieves, Leanne A., Gloor, Gregory B., Kelly, Tosha R., Bernards, Mark A., MacDougall‐Shackleton, Elizabeth A.

“…Metabolites produced by symbiotic microbes can affect the odour of their hosts, providing olfactory cues of identity, sex or other salient features. In birds,…”
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Sex differences in myelination of the zebra finch vocal control system emerge relatively late in development by Diez, Adriana, Wang, Shenghan, Carfagnini, Nicole, MacDougall‐Shackleton, Scott A.

“…The role of myelination in the development of motor control is widely known, but its role in the development of cognitive abilities is less understood. Here,…”
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Neurogenesis and the development of neural sex differences in vocal control regions of songbirds by Diez, Adriana, An, Ha Yun, Carfagnini, Nicole, Bottini, Claire, MacDougall‐Shackleton, Scott A.

“…The brain regions that control the learning and production of song and other learned vocalizations in songbirds exhibit some of the largest sex differences in…”
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Early-life stress affects song complexity, song learning and volume of the brain nucleus RA in adult male song sparrows by Schmidt, Kim L., Moore, S. Drew, MacDougall-Shackleton, Elizabeth A., MacDougall-Shackleton, Scott A.

“…The developmental stress hypothesis proposes that the honesty of birdsong is maintained by costs incurred during development, such that song in adulthood…”
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Nutrients cause grassland biomass to outpace herbivory by Borer, E. T., Harpole, W. S., Adler, P. B., Arnillas, C. A., Bugalho, M. N., Cadotte, M. W., Caldeira, M. C., Campana, S., Dickman, C. R., Dickson, T. L., Donohue, I., Eskelinen, A., Firn, J. L., Graff, P., Gruner, D. S., Heckman, R. W., Koltz, A. M., Komatsu, K. J., Lannes, L. S., MacDougall, A. S., Martina, J. P., Moore, J. L., Mortensen, B., Ochoa-Hueso, R., Olde Venterink, H., Power, S. A., Price, J. N., Risch, A. C., Sankaran, M., Schütz, M., Sitters, J., Stevens, C. J., Virtanen, R., Wilfahrt, P. A., Seabloom, E. W.

“…Human activities are transforming grassland biomass via changing climate, elemental nutrients, and herbivory. Theory predicts that food-limited herbivores will…”
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Rising to the Challenge: Mounting an Acute Phase Immune Response Has No Long-Term Negative Effects on Captive Sparrow Migratory Body Composition or Migratory Restlessness by Kelly, T R, Butnari, A C, MacDougall-Shackleton, E A, MacDougall-Shackleton, S A

“…Synopsis Migratory animals may trade-off between investing energy in immune defense versus investing in energy reserves needed for seasonal migration. However,…”
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Neuronal activation in the geomagnetic responsive region Cluster N covaries with nocturnal migratory restlessness in white‐throated sparrows (Zonotrichia albicollis) by Brodbeck, Madeleine I. R., Bingman, Verner P., Cole, Lauren J., Sherry, David F., MacDougall‐Shackleton, Scott A.

“…Cluster N is a region of the visual forebrain of nocturnally migrating songbirds that supports the geomagnetic compass of nocturnal migrants. Cluster N…”
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Stronger population differentiation at infection-sensing than infection-clearing innate immune loci in songbirds: Different selective regimes for different defenses by Boyd, Rachel J., Denommé, Melanie R., Grieves, Leanne A., MacDougall-Shackleton, Elizabeth A.

“…Parasite-mediated selection is widespread at loci involved in immune defense, but different defenses may experience different selective regimes. For defenses…”
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Sensitivity of global soil carbon stocks to combined nutrient enrichment by Crowther, T. W., Riggs, C., Lind, E. M., Borer, E. T., Seabloom, E. W., Hobbie, S. E., Wubs, J., Adler, P. B., Firn, J., Gherardi, L., Hagenah, N., Hofmockel, K. S., Knops, J. M. H., McCulley, R. L., MacDougall, A. S., Peri, P. L., Prober, S. M., Stevens, C. J., Routh, D., Penuelas, Josep

“…Soil stores approximately twice as much carbon as the atmosphere and fluctuations in the size of the soil carbon pool directly influence climate conditions. We…”
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Immune genotypes, immune responses, and survival in a wild bird population by Nelson‐Flower, Martha J., Grieves, Leanne A., Reid, Jane M., Germain, Ryan R., Lazic, Savo, Taylor, Sabrina S., MacDougall‐Shackleton, Elizabeth A., Arcese, Peter

“…Individuals vary in their immune genotype, inbreeding coefficient f, immune responses, survival to adulthood, and adult longevity. However, whether immune…”
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Leptin administration does not influence migratory behaviour in white-throated sparrows ( Zonotrichia albicollis) by Churchman, Emma, MacDougall-Shackleton, Scott A

“…Migratory flights by birds are among the most energetically demanding forms of animal movement, and are primarily fueled by fat as an energy source. Leptin is…”
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Song repertoire size varies with HVC volume and is indicative of male quality in song sparrows (Melospiza melodia) by Pfaff, Jeremy A, Zanette, Liana, MacDougall-Shackleton, Scott A, MacDougall-Shackleton, Elizabeth A

“…Complex birdsong is a classic example of a sexually selected ornamental trait. In many species, females prefer males with large song repertoires, possibly…”
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More salt, please: global patterns, responses and impacts of foliar sodium in grasslands by Borer, E. T., Lind, E. M., Firn, J., Seabloom, E. W., Anderson, T. M., Bakker, E. S., Biederman, L., La Pierre, K. J., MacDougall, A. S., Moore, J. L., Risch, A. C., Schutz, M., Stevens, C. J., Gomez, José Marìa

“…Sodium is unique among abundant elemental nutrients, because most plant species do not require it for growth or development, whereas animals physiologically…”
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Indicators of development as sexually selected traits: the developmental stress hypothesis in context by Spencer, K. A., MacDougall-Shackleton, S. A.

“…The developmental stress hypothesis proposes that the honesty of bird song as a signal may be maintained by costs incurred during development. That is, song…”
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Regulation of the HPA axis is related to song complexity and measures of phenotypic quality in song sparrows by Schmidt, Kim L., Furlonger, Ainsley A., Lapierre, Janet M., MacDougall-Shackleton, Elizabeth A., MacDougall-Shackleton, Scott A.

“…Regulation of the hypothalamic–pituitary–adrenal (HPA) axis is a key component of the vertebrate stress response. Prior studies have found that variation in…”
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Food availability influences angling vulnerability in muskellunge by Bieber, John F., MacDougall‐Shackleton, Scott A., Suski, Cory D.

“…Reduced food availability increases the capture of several fish species, although the mechanisms responsible for how food resources result in increased capture…”
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