Zobrazeno 1 - 10
of 48
pro vyhledávání: '"James F. Gilliam"'
Autor:
Kristine N. Moody, Bradley A. Lamphere, Stacy A. C. Nelson, James F. Gilliam, Michael J. Blum, Ernie F. Hain, Peter B. McIntyre
Publikováno v:
Ecology of Freshwater Fish. 28:446-458
Migratory fishes can be threatened by conditions encountered along dispersal pathways that impede access to feeding or breeding grounds. In this study, we tested the hypothesis that amphidromous fishes are equally or more sensitive to conditions alon
Publikováno v:
PLoS ONE, Vol 7, Iss 6, p e38806 (2012)
Non-native species and habitat degradation are two major catalysts of environmental change and often occur simultaneously. In freshwater systems, degradation of adjacent terrestrial vegetation may facilitate introduced species by altering resource av
Externí odkaz:
https://doaj.org/article/7cd51e7bd195422d86e29e44114816c0
Autor:
Rana W El-Sabaawi, Tyler J Kohler, Eugenia Zandoná, Joseph Travis, Michael C Marshall, Steven A Thomas, David N Reznick, Matthew Walsh, James F Gilliam, Catherine Pringle, Alexander S Flecker
Publikováno v:
PLoS ONE, Vol 7, Iss 3, p e32713 (2012)
The elemental composition of animals, or their organismal stoichiometry, is thought to constrain their contribution to nutrient recycling, their interactions with other animals, and their demographic rates. Factors that affect organismal stoichiometr
Externí odkaz:
https://doaj.org/article/bd6c427a78944dab92ddc88e32a4f080
Autor:
Peter J. Lisi, Michael J. Blum, Roderick B. Gagne, Brad A. Lamphere, Ernie F. Hain, Ryan P. Walter, James F. Gilliam, Evan S. Childress, J. Derek Hogan, Peter B. McIntyre
Publikováno v:
Freshwater Biology. 63:492-502
Urbanisation is widely associated with a suite of physical, chemical and biological degradation of stream ecosystems, known as “urban stream syndrome.” It is unclear whether urban stream syndrome is applicable to oceanic islands, where marine dis
Autor:
Steven A. Thomas, Troy N. Simon, Ronald D. Bassar, Alexander S. Flecker, Andrew J. Binderup, Catherine M. Pringle, Joseph Travis, James F. Gilliam, Mary C. Freeman, David N. Reznick, Michael C. Marshall
Publikováno v:
Copeia. 105:504-513
While previous studies have shown that evolutionary divergence alters ecological processes in small-scale experiments, a major challenge is to assess whether such evolutionary effects are important in natural ecosystems at larger spatial scales. At t
Autor:
James F. Gilliam, C. Grace Sprehn, Fernando Alda, Roderick B. Gagne, Michael J. Blum, Peter B. McIntyre
Publikováno v:
Ecography. 41:528-539
Autor:
J. D. Hogan, Reinhard Kozdon, Michael J. Blum, John W. Valley, James F. Gilliam, Peter B. McIntyre
Publikováno v:
Journal of Fish Biology. 90:1338-1355
High-resolution analysis of growth increments, trace element chemistry and oxygen isotope ratios (δ18O) in otoliths were combined to assess larval and post-larval habitat use and growth of Awaous stamineus, an amphidromous goby native to Hawai‘i.
Autor:
Andrew J. Binderup, David N. Reznick, Steven A. Thomas, Catherine M. Pringle, Joseph Travis, Michael C. Marshall, James F. Gilliam, Alexander S. Flecker, Troy N. Simon
Publikováno v:
The Bulletin of the Ecological Society of America. 100
Detrital-based trophic cascades are often considered weak or absent in tropical stream ecosystems because of the prevalence of omnivorous macroconsumers and the dearth of leaf-shredding insects. In this study, we isolate top-down effects of three mac
Publikováno v:
Parasitology. 143:1605-1614
SUMMARYThe presence of introduced hosts can increase or decrease infections of co-introduced parasites in native species of conservation concern. In this study, we compared parasite abundance, intensity, and prevalence between nativeAwaous stamineusa
Autor:
Bradley A. Lamphere, Stacy A. C. Nelson, James F. Gilliam, Ernie F. Hain, Michael J. Blum, Peter B. McIntyre
Publikováno v:
Transactions of the American Fisheries Society. 145:878-887
Visual surveys are conducted to rapidly estimate population densities of stream fishes, often without calibration against more established or more widely used methods to determine precision and accuracy or to correct for potential biases. We compared