Now showing items 11-20 of 706
Successional trends of bigtooth aspen (Populus grandidentata), red maple (Acer rubrum) and red oak (Quercus rubra) in the 1980 burn plot at UMBS.
(1991)
Successional trends of bigtooth aspen, red maple and red oak were examined on a sandy, nutrient poor site that had been clear cut and burned 11 years earlier. Four subplots were sampled 1, 2, 3, 4, 5, 9, and 11 years after ...
Thermo-, water motion, and chemosensory detection in the American medicinal leech, Macrobdella decora.
(1993)
Behavioral responses to heat, water movement, and chemical stimuli by Macrobdella decora (Hirudinidae) were investigated in the laboratory. A control period recording behavior was taken without the stimulus and then each ...
A survey of algal communities of Grass Bay.
(1996)
Grass Bay is a preserve of upland habitats and shoreline communities owned by the Nautre Conservancy. It is located east of Cheboygan, Michigan on the shore of Lake Huron. This area has been frequented and studied by many ...
Diurnal shift in trout microhabitat in the Maple River, Emmet County.
(1995)
The objective was to evaluate the trout (Salmo trutta, Salvelinus fontinalis, and Oncorhycus mykiss) in the Maple River, Emmet County to determine if there is a diel shift in microhabitat. Trout were located by snorkeling ...
Behavioral modification in Orconectes virilis.
(1995)
Chela size largely determines competitive dominance in Orconectes species. Crayfish having only one functional chela may be at a competitive disadvantage and thus avoid energetically expensive interactions. This study ...
Differential seed predation by rodents in dune and swale habitats of Sturgeon Bay, Michigan.
(1996)
This study will examine the distribution of seed predators and rates of seed predation in dune and swale habitats of Sturgeon Bay, Lake Michigan. The study will focus on the influence of seed predation on three conifer ...
Foraging preferences of ants: nitrogen concentration and ease of retrieval.
(1999)
Animals must forage to obtain the nutrients necessary for their survival. Foraging patterns of ants have been the subject of many studies. However, most of these studies have focused on energy even though ants encounter ...
Effects of substrate types and temperature gradients on habitat preferences of Ephemerella, Gomphus, and Hydatophylax.
(1997)
This study examines whether a difference exists in habitat choice across substrate types and temperature gradients for dragonflies (family Gomphidae, genus Gomphus), mayflies (family Ephemerellidae, genus Ephemerella), and ...
The colonization pattern and extent of a single genet of Ammophila breviligulata.
(1990)
The purpose of this study was to uncover an individual genet of Ammophila breviligulata to determine its extent and to describe aspects of its morphology and behavior that contribute to its success in the harsh environments ...
Sugar concentration preference in the Ruby-throated Hummingbird (Archilochus colubris).
(1996)
The purpose of my study was to determine sugar concentration preference of the Archilochus colubris (Ruby-throated Hummingbird). Feeders were arranged with 10, 25, and 40 percent solutions of sugar water. Sugar concentration ...