Complexity revealed in the greening of the Arctic

IH Myers-Smith, JT Kerby, GK Phoenix… - Nature Climate …, 2020 - nature.com
As the Arctic warms, vegetation is responding, and satellite measures indicate widespread
greening at high latitudes. This 'greening of the Arctic'is among the world's most important …

Emerging perspectives on resource tracking and animal movement ecology

B Abrahms, EO Aikens, JB Armstrong… - Trends in Ecology & …, 2021 - cell.com
Resource tracking, where animals increase energy gain by moving to track phenological
variation in resources across space, is emerging as a fundamental attribute of animal …

Is ungulate migration culturally transmitted? Evidence of social learning from translocated animals

BR Jesmer, JA Merkle, JR Goheen, EO Aikens, JL Beck… - Science, 2018 - science.org
Ungulate migrations are assumed to stem from learning and cultural transmission of
information regarding seasonal distribution of forage, but this hypothesis has not been …

Memory and resource tracking drive blue whale migrations

B Abrahms, EL Hazen, EO Aikens, MS Savoca… - Proceedings of the …, 2019 - pnas.org
In terrestrial systems, the green wave hypothesis posits that migrating animals can enhance
foraging opportunities by tracking phenological variation in high-quality forage across space …

Decoupling of bird migration from the changing phenology of spring green-up

EP Robertson, FA La Sorte, JD Mays, PJ Taillie… - Proceedings of the …, 2024 - pnas.org
The green-up of vegetation in spring brings a pulse of food resources that many animals
track during migration. However, green-up phenology is changing with climate change …

The greenscape shapes surfing of resource waves in a large migratory herbivore

EO Aikens, MJ Kauffman, JA Merkle… - Ecology …, 2017 - Wiley Online Library
Abstract The Green Wave Hypothesis posits that herbivore migration manifests in response
to waves of spring green‐up (ie green‐wave surfing). Nonetheless, empirical support for the …

Spatial memory shapes migration and its benefits: evidence from a large herbivore

JA Merkle, H Sawyer, KL Monteith… - Ecology …, 2019 - Wiley Online Library
From fine‐scale foraging to broad‐scale migration, animal movement is shaped by the
distribution of resources. There is mounting evidence, however, that learning and memory …

Migrating bison engineer the green wave

C Geremia, JA Merkle, DR Eacker, RL Wallen… - Proceedings of the …, 2019 - pnas.org
Newly emerging plants provide the best forage for herbivores. To exploit this fleeting
resource, migrating herbivores align their movements to surf the wave of spring green-up …

Wave-like patterns of plant phenology determine ungulate movement tactics

EO Aikens, A Mysterud, JA Merkle, F Cagnacci… - Current Biology, 2020 - cell.com
Animals exhibit a diversity of movement tactics [1]. Tracking resources that change across
space and time is predicted to be a fundamental driver of animal movement [2]. For example …

Ontogenetic shifts from social to experiential learning drive avian migration timing

B Abrahms, CS Teitelbaum, T Mueller… - Nature …, 2021 - nature.com
Migrating animals may benefit from social or experiential learning, yet whether and how
these learning processes interact or change over time to produce observed migration …