Sites Archives - Page 30 of 52

susanne_strom

Posted November 12, 2021

Suzanne showcases how to best don a “one size fits all” survival suit.

schoolyard

Posted October 28, 2021

Middle school students collect data for their class’s phenology research study, “Buds, Leaves, and Global Warming” in the Harvard Forest Schoolyard Ecology Program.

pika_enthusiasts

Posted October 27, 2021

Community scientists converge at Loveland Pass on a cold June morning to learn pika surveying techniques. Credit: Angela Theodosopoulos, CC BY-SA 4.0.

pika_bowman

Posted October 27, 2021

A pika looks out over the talus.

Dr. Andrew Rypel holds a largemouth bass. Largemouth bass are a spatially variable species, and respond strongly to large scale ecosystem changes like climate change. Courtesy Andrew Rypel. CC by-SA 4.0.

rypel_figure2

Posted October 1, 2021

Bootstrapped temporal heterogeneity measures for 18 fish species in each of four lakes compared to bootstrapped spatial heterogeneity measures for the same species across 55 lakes regionally. Species like walleye were less heterogeneous in individual lakes over time relative to patterns observed spatially. Conversely, black crappie and yellow perch had high temporal heterogeneity in lakes relative to observed spatial heterogeneity. Figure and caption from Spatial versus temporal heterogeneity in abundance of fishes in north-temperate lakes by Andrew Rypel. CC BY-SA 4.0.

NTL_Lake

Posted October 1, 2021

One of many lakes in the North Temperate Lakes LTER. The spatial breadth of the LTER, combined with the long duration of research in the area, provided Dr. Rypel the requisite data to study population variability across both space and time in several fishes. Credit: Andrew Rypel. CC BY-SA 4.0.