Results 41 to 50 of about 17,694 (204)

Notes on \u3ci\u3eTaeniogonalos Gundlachii\u3c/i\u3e (Hymenoptera: Trigonalidae) From Wisconsin [PDF]

open access: yes, 2018
This is the first report of Taeniogonalos gundlachii (Cresson) (Hymenoptera: Trigonalidae) from Wisconsin and of this hyperparasitoid reared from the initial host Euchaetes egle (Drury) (Lepidoptera: Arctiidae).
Krauth, Steven J, Williams, Andrew H
core   +2 more sources

WASTELAND ACTIVISM: Political Weeds and Ecological Imaginaries in Montreal

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Drawing on ethnographic fieldwork in Montreal, this article examines the ways in which urban dwellers and activists engage with the living materialities of wastelands to illuminate evolving ecological imaginaries and their political potentials.
Daniela Giudici
wiley   +1 more source

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

open access: yesInsect Science, EarlyView.
Fertilization level influences pest control effectiveness in tomato crops. High fertilization increases plant growth and aphid density but reduces the performance of the parasitoid Aphidius ervi. In contrast, the predator Adalia bipunctata maintains consistent aphid suppression regardless of fertilization regime.
Ruohan Ma   +5 more
wiley   +1 more source

Development and Verification of an Interspecific Hybridization Protocol for Asclepias

open access: yesHortScience, 2021
Milkweed (Asclepias sp.) is an important pollinator genus across North America and is a host plant for many butterfly species, notably the monarch butterfly (Danaus plexippus).
Mary Lewis   +4 more
doaj   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer   +11 more
wiley   +1 more source

Monarch Butterfly Distribution and Breeding Ecology in Idaho and Washington

open access: yesFrontiers in Ecology and Evolution, 2019
Studies of monarch butterflies (Danaus plexippus) and their milkweed (Asclepias spp.) host plants in North America have focused primarily on monarch populations ranging east of the Rocky Mountains.
Beth Waterbury   +2 more
doaj   +1 more source

Density dependence and habitat selection affect overwintering abundance of monarch butterflies at regional and site scales in California

open access: yesConservation Science and Practice, EarlyView.
We analyzed annual overwintering counts in California to understand monarch population fluctuations. Climate and density‐dependent factors explain 64% of annual variability across groves, with density dependence being the primary driver. Within groves, tree characteristics and microclimate significantly influence monarch habitat selection, with ...
Peter C. Ibsen   +4 more
wiley   +1 more source

The Importance of Shifting Disturbance Regimes in Monarch Butterfly Decline and Recovery

open access: yesFrontiers in Ecology and Evolution, 2019
The Eastern migratory monarch butterfly has declined in recent decades, partly because widespread adoption of herbicide-resistant corn and soybean has nearly eliminated common milkweed from crop fields in the US Midwest.
Nathan L. Haan, Douglas A. Landis
doaj   +1 more source

Invasive common milkweed strongly simplifies insect flower-visiting networks

open access: yesBasic and Applied Ecology
Plant invasion and habitat fragmentation are significant global drivers threatening biodiversity. Synergistic interactions between these processes can lead to even more significant biodiversity loss than when they act alone.
Edina Török   +4 more
doaj   +1 more source

\u3cem\u3eTestimony\u3c/em\u3e, Landscape and the West: A Conversation with Stephen Trimble [PDF]

open access: yes, 2002
This interview with Stephen Trimble is part of a series of conversations with contemporary western writers about the ethical and cultural implications of nature ...
Sumner, David Thomas
core   +1 more source

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