4 research outputs found
Maple Tree Adult and Sapling Data collected at York University
<p>Data was collected from the Danby Woods forest at York University's Keele campus. Researchers analyzed 10 Maple trees and their nearest sapling and recorded 4 variables which included dbh, % canopy coverage, distance to sapling, and dbh of sapling. Diameter at breast height (dbh) and sapling dbh ware measured in cm using a measuring tape and were recorded to the nearest 0.1 cm. Canopy coverage was estimated using hands to create a small square in the sky from which the percent coverage could be estimated. Finally, distance to the nearest sapling was measured in metres from the centre of the adult trunk to the sapling trunk. Saplings were defined as trees that were no higher than approximetly double the height of an average student.</p
Distance Based Sampling of Birds at York University’s Keele Campus
<p>Distance based sampling was used to survey bird species at the Danby Forest at York University. 25m belt transects were set in 5 locations in the woodlot and 5 locations in the adjacent grassland. The researcher walked along the transect and observed the surrounding area for birds. Data for sighted birds included frequency of species, bird's common name, wind speed and estimated distance to the bird. Frequency of species was recorded by counting number of birds that were together in a group. The common name of the bird was determined by observing the bird's morphology and with reference to a bird guide. Wind speed was recorded using the Beaufort scale which divides wind speed into 13 different categories from 0 (no wind) to 12 (strongest winds).</p
ECOL 2050 lab 1 -
<p>Randomly selected individuals were observed on campus walk in York University. The Researches observed 3 variables: gender, glasses, and hair colour. Gender was recorded as observed. Glasses present were recorded as any type of glasses (sunglasses, corrective glasses) that were visible on the individual. Finally, hair colour was recorded as observed, and if there were multiple observable colours the individual was questioned about their natural hair colour. 25 individuals were recorded. When a group passed by only one individual from the group was recorded to avoid biased sampling.</p
Fun Data
<p>Data was collected during an observational study taken on campus walk of York University. Researchers would select individuals as they passed by and record the color of their hair, their observed genders and whether or not they were wearing glasses or sunglasses. In the event of a large group of passing individuals, single subjects were selected randomly from the group. Â Â Â </p