Forest ecology -- Northeastern States. ; Forest canopy ecology -- Northeastern States. ; Forest dynamics -- Northeastern States.
In closed-canopy forests, changes in the relative abundance of tree species due to major disturbance or to its absence are thought to be governed principally by differences among component species in the performance of juveniles. However, few...
Steep terrain produces a topographic effect in digital satellite data that can make it difficult to distinguish changes in vegetation species or health from changes in illumination geometry. A multiple linear regression analysis of direct solar...
Southern pine beetle -- Ecology. Mutualism (Biology). Commensalism.
A challenge for ecologists is to identify and understand the mechanisms that produce population behaviors in nature. This is particularly difficult in complex communities that comprise of tightly linked multivoltine organisms that are...
The human female reproductive tract (FRT) maintains a state of immune tolerance to spermatozoa and fetal allografts, while retaining the capacity to respond to a number of sexually transmitted infections (STIs) including human immunodeficiecy virus...
Dipterocarpaceae -- Ecology -- Indonesia -- Kalimantan Barat. ; Rain forest ecology -- Indonesia -- Kalimantan Barat. ; Herbivores -- Ecology.
A decline in population growth as the abundance of a species increases can stabilize population size. In Western Borneo, I found evidence for such density dependence in juveniles of the genus Shorea (Dipterocarpaceae) that dominates southeast...
1946; Capt. Malcolm McLane of Manchester and Dartmouth Ski coach Ja Densmore of Lebanon go over last-minute planes for Indians fight to retain inter Carnival crown in battle with ? crack ski teams here Friday and Saturday. Big Green will be out to...
At the heart of computer games and computer generated films lies 3D content creation. A student wanting to learn how to create and edit 3D meshes can quickly find thousands of videos explaining the workflow process. These videos are a popular...
While anthropogenic emissions of the toxic element mercury (Hg) to the atmosphere are currently rising, major uncertainties remain in determining the relative impacts of anthropogenic activity and natural processes on the global Hg cycle. In this...
Sponges are a historically ambiguous taxon, often considered primitively simple representatives of early Metazoa, living fossils from the era before the complex morphological features of the bilaterian phyla appeared in the Cambrian. Yet recent...
Identifying and understanding sources of individual variation in fecundity is of central importance to life history theory and population ecology. In this study, I first examined how factors on the breeding grounds in eastern Maryland affected the...
A nocturnal activity pattern is central to almost all hypotheses on the adaptive origins of primates but this view has been challenged recently on the basis of variation in the cone opsin genes of nocturnal primates. The diversity among primates in...
American beech -- Ecology -- North America -- Mathematical models. Beech bark disease -- Mathematical models. Fungal populations -- Mathematical models. Nonindigenous pests -- Environmental aspects -- Mathematical models.
When a nonnative insect or pathogen becomes established in a forest, outcomes for host trees can range from local or minor effects to regional extirpation. Elevated host mortality is often accompanied by compensatory recruitment by co-occurring...
The unifying theme of this work has been the use of forward genetics to identify three new genes - each thought to play an important yet unrecognized role in either the core circadian oscillator of Neurospora crassa , or in its main physiological...
Magnetoencephalography -- Technique.; Magnetic susceptibility.
The measurement of human brain function is the goal of many noninvasive medical imaging modalities. Two sources of physiological contrast are commonly targeted to achieve this goal. The most direct approach to measuring neuronal activity is with...
Fir waves are spatially and temporally repeating patterns of stand development and destruction in subalpine, balsam fir-dominated forests of the northeastern United States, perpetuated by downwind migration of strips of dying trees, "dieback...
Identifying the determinants of reproductive success in small-scale societies is critical for understanding how natural selection has shaped human evolution and behavior. The available evidence suggests that status-accruing behaviors such as...
Robots -- Control systems. ; Robots -- Motion. ; Computer algorithms. ; Electronic data processing -- Distributed processing.
Self-reconfiguring robots are robots composed of many physically connected modules which can change their structural configuration to support multiple functionalities. We claim that self-reconfiguring robots are more versatile, extensible, and...
Functional neuroimaging has confirmed a high degree of localization of function in the cerebral cortex of man. In contrast, microstructural analysis has contributed very little to the topographical characterization of cortical areas. In this work I...
Barbara Ann Scott, famous skating champion, crowns Miss Susan Darrah of Smith College, Queen of the 1951 Dartmouth Winter Carnival; use with display of Carnival cup + crown; Pleas return to Dartmouth News Service Hanover NH
The respiratory control network (RC) is made up nuclei dispersed throughout the pons and medulla oblongata and receives information from various sources that alter respiratory output. My studies have been focussed on one of these nuclei that play a...
Rhizobium -- Physiology. Rhizobium -- Genetics. Plants -- Effect of iron on.
Iron is essential in the agriculturally important symbiosis between Bradyrhizobium japonicum and soybean. Studying iron uptake in B. japonicum presents unique challenges in that the organism is found in two very different environments, free living...
MicroRNAs (miRNAs) are recently discovered family of genes with short non-coding RNA transcripts of 18 to 25 nucleotides in length. lin-4 and let-7 , the founding members of the miRNA gene family, control the timing of developmental programs in the...