Javascript geo sample. Biological Calendars:The Statewide Network of OSU Phenology Gardens. Special Circular 195 Biological Calendars:The Statewide Network of OSU Phenology Gardens Denise Ellsworth and Daniel A. Herms Effective monitoring is the backbone of any Integrated Pest Management (IPM) program. The use of plant phenology provides an alternative approach for predicting insect activity. The development of both plants and insects is temperature dependent; thus, phenological events of plants, such as flowering time, may accurately track degree-day accumulation and predict insect development and emergence.
The Biological Calendar This intensive, long-term research project has demonstrated that phenological events occur in virtually the same order each year (Herms, 2003). The Biological Calendar can greatly ease the complex logistics of scheduling a monitoring and management program when confronted with a large number of pests. OARDCs Phenology Web Site The Ohio State University Phenology Garden Network Figure 1. References Cited Herms, D. Herms, D. Herms, D. Growing Degree Day Phenological Calendar. What is Phenology? Plants and animals have life cycle events that seemingly occur like clockwork every year: Frogs and salamanders breed and their offspring go through metamorphosis Flowers bloom Male ungulates (deer, elk, pronghorns, etc.) grow antlers to begin the rut and breeding season Birds migrate back and forth between their breeding grounds and their wintering grounds The leaves of deciduous trees change color and fall off Some mammals, such as bears, groundhogs and ground-squirrels, hibernate through the winter Butterflies go through metamorphosis How do Animals and Plants Know When to Start these Natural Events?
The study of how the biological world times natural events is called phenology. Scientists now understand that plants and animals take their cues from their local climate. Phenology Factors The three main non-biological factors that affect phenology are: Sunlight Temperature Precipitation (rainfall, snowfall, etc.) Why Should we Care about Phenology?
Phenology and Global Warming. The Aldo Leopold Foundation. Phenology. USA National Phenology Network | USA National Phenology Network. Ohio State Phenology Gardens 2013 Update - Intro to Nature's Notebook | USA National Phenology Network. Phenology Education. Nature's Notebook | USA National Phenology Network. Phenology. Phenology is the study of periodic plant and animal life cycle events and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation). The word is derived from the Greek φαίνω (phainō), "to show, to bring to light, make to appear"[1] + λόγος (logos), amongst others "study, discourse, reasoning"[2] and indicates that phenology has been principally concerned with the dates of first occurrence of biological events in their annual cycle.
Examples include the date of emergence of leaves and flowers, the first flight of butterflies and the first appearance of migratory birds, the date of leaf colouring and fall in deciduous trees, the dates of egg-laying of birds and amphibia, or the timing of the developmental cycles of temperate-zone honey bee colonies. Past records[edit] Observations of phenological events have provided indications of the progress of the natural calendar since ancient agricultural times. Modern records[edit]