User profiles for Alyssa R. Cirtwill

Alyssa Cirtwill

Postdoctoral Fellow, Helsingin Yliopisto (University of Helsinki)
Verified email at helsinki.fi
Cited by 864

The marine fish food web is globally connected

…, D Beauchesne, K Cazelles, AR Cirtwill… - Nature Ecology & …, 2019 - nature.com
The productivity of marine ecosystems and the services they provide to humans are largely
dependent on complex interactions between prey and predators. These are embedded in a …

How exotic plants integrate into pollination networks

DB Stouffer, AR Cirtwill, J Bascompte - Journal of Ecology, 2014 - Wiley Online Library
There is increasing world‐wide concern about the impact of the introduction of exotic species
on ecological communities. Since many exotic plants depend on native pollinators to …

Motifs in bipartite ecological networks: uncovering indirect interactions

BI Simmons, AR Cirtwill, NJ Baker, HS Wauchope… - Oikos, 2019 - Wiley Online Library
Indirect interactions play an essential role in governing population, community and coevolutionary
dynamics across a diverse range of ecological communities. Such communities are …

A review of species role concepts in food webs

AR Cirtwill, GV Dalla Riva, MP Gaiarsa, MD Bimler… - Food Webs, 2018 - Elsevier
Many different concepts have been used to describe species' roles in food webs (ie, the ways
in which species participate in their communities as consumers and resources). As each …

The structure of probabilistic networks

T Poisot, AR Cirtwill, K Cazelles… - Methods in Ecology …, 2016 - Wiley Online Library
There is a growing realization among community ecologists that interactions between
species vary across space and time and that this variation needs to be quantified. Our current …

Ecogeographical rules and the macroecology of food webs

B Baiser, D Gravel, AR Cirtwill… - Global Ecology and …, 2019 - Wiley Online Library
Aim How do factors such as space, time, climate and other ecological drivers influence food
web structure and dynamics? Collections of well‐studied food webs and replicate food webs …

Between‐year changes in community composition shape species' roles in an Arctic plant–pollinator network

AR Cirtwill, T Roslin, C Rasmussen, JM Olesen… - Oikos, 2018 - Wiley Online Library
Inter‐annual turnover in community composition can affect the richness and functioning of
ecological communities. If incoming and outgoing species do not interact with the same …

Little directional change in the timing of Arctic spring phenology over the past 25 years

…, J Hansen, HS Gerlich, TT Høye, AR Cirtwill… - Current Biology, 2023 - cell.com
With the global change in climate, the Arctic has been pinpointed as the region experiencing
the fastest rates of change. As a result, Arctic biological responses—such as shifts in …

Stable pollination service in a generalist high Arctic community despite the warming climate

AR Cirtwill, R Kaartinen, C Rasmussen… - Ecological …, 2023 - Wiley Online Library
Insects provide key pollination services in most terrestrial biomes, but this service depends
on a multistep interaction between insect and plant. An insect needs to visit a flower, receive …

Latitudinal gradients in biotic niche breadth vary across ecosystem types

AR Cirtwill, DB Stouffer… - Proceedings of the …, 2015 - royalsocietypublishing.org
Several properties of food webs—the networks of feeding links between species—are known
to vary systematically with the species richness of the underlying community. Under the ‘…