INSECT PHENOLOGY MEDIATED BY HOST‐PLANT WATER RELATIONS

The statistical analysis of insect phenology.

We introduce two simple methods for the statistical comparison of the temporal pattern of life-cycle events between two populations. The methods are based on a translation of stage-frequency data into individual 'times in stage'. For example, if the stage-k individuals in a set of samples consist of three individuals counted at time t(1) and two counted at time t(2), the observed times in stag...

Photosynthesis and water relations of savanna tree species differing in leaf phenology.

Godmania macrocarpa Hemsley, a deciduous tree characteristic of fire protected areas of the savanna region of central Venezuela, was more drought tolerant, allocated more N to leaves and had consistently higher photosynthetic rates than Curatella americana L., a ubiquitous species growing successfully within the grasslands of tropical American savannas. Godmania macrocarpa maintained higher lea...

The Structural Relations among Culture and Organizational Health Mediated by Organizational Climate

The Structural Relations among Culture and Organizational Health Mediated by Organizational Climate   R. Marzooghi, Ph.D.* J. Torkzaadeh, Ph.D. ** R. Badri Gargari, Ph.D. *** R. Rabavi, Ph.D. ****   With the aim of helping with the improvement of the organizational health at the Technical & Vocational University, the role of culture and organizational climate was explored i...

Using Geographically Robust Models of Insect Phenology in Forestry

Increased temperature delays the late-season phenology of multivoltine insect

We analyzed the impact of increased water temperature on the late-season phenology of the mayfly (Baetis liebenauae). The River Gwda, unlike two other examined rivers (controls), has reservoirs along its length and thus, higher water temperature. Elevated water temperature prolonged summer diapause of the mayfly and shifted its life cycle to the later autumn: the last generation of mayflies sta...