ERA Banner

Journal Articles (Biological Sciences)

rss Browse

Items in Journal Articles (Biological Sciences)

: 221 - 240 of 622 filter by collection:"Journal Articles (Biological Sciences)"
Pages: « Previous 1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ... 32 Next »
  1. Estimation of speciated and total mercury dry deposition at monitoring locations in Eastern and Central North America

    by Zhang, L.; Blanchard, P.; Gay, D.A.; Prestbo, E.M.; Risch, M.R.; Johnson, D.; Narayan, J.; Zsolway, R.; Holsen, T.M.; Miller, E.K.; Castro, M.S.; Graydon, J.A.; St. Louis, V.L.; Dalziel, J.

    Dry deposition of speciated mercury, i.e., gaseous oxidized mercury (GOM), particulate bound mercury (PBM), and gaseous elemental...

    Download Add to Cart
  2. Evaluating the Relationship between Competition and Productivity within a Native Grassland

    by Bennett, J. A.; Cahill, J. F.

    Ideas about how plant competition varies with productivity are rooted in classic theories that predict either increasing...

    Download Add to Cart
  3. Evidence for selective caching by arctic ground squirrels in alpine meadows in the Yukon

    by Gillis, E.A.; Morrison, S.F.; Zazula, G.; Hik, D.S.

    Male arctic ground squirrels (Spermophilus parryii) rely on food they cached the previous year for the energy they need to...

    Download Add to Cart
  4. Evidence for sympodial vascular architecture in a filicalean fern rhizome: Dickwhitea allenbyensis gen. et sp. nov. (Athyriaceae).

    by Karafit, S.J.; Rothwell, G.W.; Stockey, R.A.; Nishida, H.

    A new genus and species of anatomically preserved fossil filicalean ferns Dickwhitea allenbyensis gen. et sp. nov. is described...

    Download Add to Cart
  5. Evidence of recent treeline dynamics in southwest Yukon from aerial photographs

    by Danby, R.K.; Hik, D.S.

    Small-scale vertical aerial photographs taken in 1947 and 1948 covering 200 km2 of the Kluane Ranges, southwest Yukon, were...

    Download Add to Cart
  6. Evidence that the gemmae of Papulaspora sepedonioides are neotenous perithecia in the Melanosporales

    by Davey, M.L.; Tsuneda, A.; Currah, R.S.

    Papulaspora sepedonioides produces large multicellular gemmae with several, thick-walled central cells enclosed within a...

    Download Add to Cart
  7. Evolutionary Dynamics of Vibrio cholerae O1 Following a Single-Source Introduction to Haiti

    by Katz, Lee S.; Petkau, Aaron; Beaulaurier, John; Tyler, Shaun; Antonova, Elena S.; Turnsek, Maryann A.; Guo, Yan; Wang, Susana; Paxinos, Ellen E.; Orata, Fabini; Gladney, Lori M.; Stroika, Steven; Folster, Jason P.; Rowe, Lori; Freeman, Molly M.; Knox, Natalie; Frace, Mike; Boncy, Jacques; Graham, Morag; Hammer, Brian K.; Boucher, Yan; Bashir, Ali; Hanage, William P.; Van Domselaar, Gary; Tarr, Cheryl L.

    Prior to the epidemic that emerged in Haiti in October of 2010, cholera had not been documented in this country. After its...

    Download Add to Cart
  8. Evolutionary origins of sensation in metazoans: functional evidence for a new sensory organ in sponges

    by Sally Leys

    Background One of the hallmarks of multicellular organisms is the ability of their cells to trigger responses to the environment...

    Download Add to Cart
  9. Experimental evidence for the rapid evolution of behavioral canalization in natural populations

    by Edgell, T.C.; Lynch, B.R.; Trussell, G.C.; Palmer, A.R.

    Canalization—the evolutionary loss of the capacity of organisms to develop different phenotypes in different environments— is...

    Download Add to Cart
  10. Expression of p190A during apoptosis in the regressing rat ventral prostate

    by Morrissey, C.; Bennett, S.; Nitsche, E.; Guenette, R.S.; Wong, P.; Tenniswood, M.

    After hormonal ablation, 90% of the secretory epithelial cells of the prostate undergo apoptosis, and the remaining cells...

    Download Add to Cart
  11. Fatty acid composition of the adipose tissue of polar bears and of their prey: ringed seals, bearded seals and harp seals

    by Grahl-Nielsen, O.; Andersen, M.; Derocher, A.E.; Lydersen, C.; Wiig, Ø.; Kovacs, K.

    Polar bears Ursus maritimus are predators of phocid seals, but they also forage opportunistically on a variety of other species....

    Download Add to Cart
  12. Feather mites of the genus Proterothrix Gaud (Astigmata: Proctophyllodidae) from parrotbills (Passeriformes: Paradoxornithidae) in China.

    by Mironov, S.V.; Proctor, H.C.

    Three new species of the feather mite genus Proterothrix Gaud, 1968 (Proctophyllodidae: Pterodectinae) are reported from...

    Download Add to Cart
  13. Fecal Pellet Counts as a Technique for Monitoring an Alpine-Dwelling Social Rodent, the Hoary Marmot (Marmota caligata)

    by Karels, T. J.; Koppel, L.; Hik, D. S.

    We evaluated fecal pellet counts as an index of hoary marmot (Marmota caligata) social group size in order to develop a simple,...

    Download Add to Cart
  14. Female ixodid ticks grow endocuticle during the rapid phase of engorgement

    by Flynn, P. C.; Kaufman, W. R.

    Abstract: Lees (Proc Zool Soc Lond 121: 759-772, 1952) concluded that the ixodid tick Ixodes ricinus grows endocuticle during...

    Download Add to Cart
  15. Fertilization effects on interactions between above-and belowground competition in an old field

    by Cahill, J. F.

    Recent theoretical and experimental studies have addressed whether the relative importance of aboveground and belowground...

    Download Add to Cart
  16. Fertilizing Nature: A Tragedy of Excess in the Commons

    by Good, Allen G.; Beatty, Perrin H.

    Globally, we are applying excessive nitrogen (N) fertilizers to our agricultural crops, which ultimately causes nitrogen...

    Download Add to Cart
  17. Download Add to Cart
  18. Finding the “Pitch” in Ecological Writing

    by Cahill, J. F.; Lyons, D.; Karst, J.

    This paper is the product of a seminar led by JC Cahill in response to a request by many graduate students and post-docs...

    Download Add to Cart
  19. Fine-scale movement decisions of tropical forest birds in a fragmented landscape

    by Gillies, C. S.; Beyer, H. L.; St. Clair, C. C.

    The persistence of forest-dependent species in fragmented landscapes is fundamentally linked to the movement of individuals...

    Download Add to Cart
  20. First record of dinosaur trackways in Beijing, China

    by Zhang, J.-P.; Xing, L.-D.; Gierlinski, G. D.; Wu, F.-D.; Tian, M.-Z.; Currie, P. J.

    We describe a number of newly discovered dinosaur tracks from the Late Jurassic-Early Cretaceous Tuchengzi Formation, located...

    Download Add to Cart
  21. Pages: « Previous 1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ... 32 Next »