Now showing items 31-40 of 283
Foraging preferences of Castor canadensis: tree species, size, and location.
(2000)
Castor canadensis (beaver) is an excellent animal model for studying optimal foraging theories. The beaver attacks woody plants for both a source of food and building material for its dam and lodge. A tree that has been ...
Deep holes: Interdepression differences in trophic state in Douglas Lake, Michigan.
(2006)
Historically the deep basins of Douglas Lake have behaved almost as independent lakes in terms of temperature, pH, and dissolved oxygen and carbon dioxide. These depressions have shown high yearly variability. It is also ...
The effects of elevated CO2-grown leaves on blackfly larval growth.
(2000)
In this study, I investigated the effects of elevated CO2-grown leaves on blackfly larval growth. Blackfly larvae (Simuliidae) used in the experiment were collected from the East Branch of the Maple River in Emmet County ...
Vertical survey of cell biomass and species diversity of epiphytic algae on Scirpus acutus from Big Shoal on Douglas Lake.
(2001)
Does the cell biomass or species diversity differ on a stem of Scirpus acutus with respect to depth? This experiment was designed to answer this question. Three stems of Scirpus acutus were taken at three different depths ...
The boundary layer and its effects on canopy-level ozone and NOx mixing ratios.
(2000)
PROPHET held a measurement intensive during the summer of 2000 at a forested site in rural northern Michigan whose purpose was to better understand the transport and fate of bith anthropogenic and biogenic emissions on ...
Testing the validity of the species-area curve: invertebrate diversity in freshwater ponds.
(2004)
The total number of species supported by a habitat is one of the most fundamental ecological characteristics of any system. The increase in species diversity with habitat size is known as the species-area relationship; ...
Typha x glauca seasonal development and growth rates as a function of Typha x glauca density and litter.
(2005)
The area of the marsh studied in this paper was a 64m-long transect starting in the transitional zone where native plants still dominate and T. x glauca is present in low densities, and ending in an area of dense T. x ...
Phenotypic plasticity in Amelanchier in response to difference in nutrient and light availability.
(2004)
The phenotypic plasticity in genus Amelanchier was studied by observing the relationship between abiota and individual plant morphology and physiology. Measurements of species richness were taken in each of the 1918, 1948, ...
The capture rate of prey in orb, sheet, and tangle spider webs.
(2001)
Arthropods are the most abundant phylum but the order Araneus (spiders) is one of the most abundant species. Spiders have a silk gland called spinnerets, which they use to create their webs; but not all spiders use their ...
The effects of interspecific competition on the distribution of northern hardwood forest tree species on a landscape level.
(2000)
Across the landscape of the northern Lower Peninsula of Michigan many tree species coexist and have similar abundance patterns. In some cases a positive correlation might reflect similar resource requirements in an ecosystem ...