Results 61 to 70 of about 69,456 (214)

Aggression Is Induced by Resource Limitation in the Monarch Caterpillar

open access: yesiScience, 2020
Summary: Food represents a limiting resource for the growth and developmental progression of many animal species. As a consequence, competition over food, space, or other resources can trigger territoriality and aggressive behavior.
Joseph Collie   +3 more
doaj   +1 more source

Flight of the dragons: a global review of migration in Odonata

open access: yesBiological Reviews, Volume 101, Issue 5, Page 2134-2157, October 2026.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund   +3 more
wiley   +1 more source

Appendix B. Map of volunteer participants in two citizen science monarch butterfly programs, Project Monarch Health and Monarch Larva Monitoring Project.

open access: yes, 2016
Map of volunteer participants in two citizen science monarch butterfly programs, Project Monarch Health and Monarch Larva Monitoring ...
Karen S. Oberhauser (2922792)   +3 more
core   +1 more source

Cryptochromes define a novel circadian clock mechanism in monarch butterflies that may underlie sun compass navigation.

open access: yesPLoS Biology, 2008
The circadian clock plays a vital role in monarch butterfly (Danaus plexippus) migration by providing the timing component of time-compensated sun compass orientation, a process that is important for successful navigation.
Haisun Zhu   +6 more
doaj   +1 more source

Do Abies religiosa Seedlings That Survived Hot/Dry Range‐Edge Conditions Exhibit Genetic Evidence of Selection?

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
In a common garden experiment of sacred fir (Abies religiosa), nearly all seedlings planted at 3400 and 3000 m survived, but only 6% survival at 2600 m (representing possible warmer and drier future conditions). When comparing low elevation survivors to higher elevation seedlings representing the initial population, PCAdapt identified 2202 outlier SNPs
Yinyue Du   +4 more
wiley   +1 more source

Mapping monarch habitat: Insights from a two‐year study on California Bureau of Land Management lands

open access: yesEcosphere, Volume 17, Issue 10, October 2026.
Abstract The Bureau of Land Management (BLM) oversees over 6 million hectares of public land in California, representing 15% of the state's total land area. California plays a key role in western monarch conservation, providing roosting habitat during winter months and breeding and migration habitat in the spring, summer, and fall.
Sarah Gomes   +3 more
wiley   +1 more source

An ecological auto-ethnography of a monarch butterfly [PDF]

open access: yes, 2018
As I sit in the beautiful sunshine here on the central coast of California, I look around and see that there are far fewer of my family than there used to be. I begin to wonder how much longer my kin will be able to continue our existence. I am a Monarch Butterfly, or Danaus plexippus for those who are more focused on scientific nomenclature, and one ...
openaire   +2 more sources

A Binary Stellar Oscillation Optimizer for 0–1 Knapsack Problems

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
The stellar oscillation optimizer (SOO) is a novel nature‐inspired metaheuristic algorithm, which draws its inspiration from the motion of stellar objects in the universe. Despite its excellent performance in continuous optimization, the standard SOO framework faces limitations when addressing discrete optimization problems like the 0–1 knapsack ...
Zhiyong Li   +3 more
wiley   +1 more source

Monarch butterfly

open access: yes, 2012
A monarch butterfly perched on a pink ...

core  

Mixed-Species Gardens Increase Monarch Oviposition without Increasing Top-Down Predation

open access: yesInsects, 2020
Monarch butterfly populations have declined by over 80% in the last 20 years. Conservation efforts focus on the creation of milkweed habitats to mitigate this decline.
Rebecca Nestle   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy