Results 41 to 50 of about 11,597 (258)

Migration tactics and connectivity of a Nearctic–Neotropical migratory shorebird

open access: yesJournal of Animal Ecology, 2022
Abstract During long‐distance spring migrations, birds may rest and refuel at numerous stopover sites while minimizing the time to reach the breeding grounds. If habitat is limited along the migration route, pre‐breeding birds optimize flight range by having longer stopovers at higher quality sites compared to poorer quality sites.
John A. Herbert   +2 more
openaire   +3 more sources

Migratory connectivity of Palearctic-African migratory birds and their responses to environmental change : the serial residency hypothesis

open access: yes, 2014
Date of Acceptance: 04/05/2014In most long-distance migratory birds, juveniles migrate without their parents and so are likely to lack detailed knowledge of where to go.
Cresswell, Will
core   +1 more source

Birds of three worlds: moult migration to high Arctic expands a boreal-temperate flyway to a third biome

open access: yesMovement Ecology, 2021
Background Knowledge on migration patterns and flyways is a key for understanding the dynamics of migratory populations and evolution of migratory behaviour. Bird migration is usually considered to be movements between breeding and wintering areas, while
Antti Piironen   +2 more
doaj   +1 more source

Cultural traditions across a migratory network shape the genetic structure of southern right whales around Australia and New Zealand

open access: yes, 2015
ELC was supported by the AMMC and a Newton Fellowship from the Royal Society and RH in part by a Sitka Sound Science Centre Scientist in Residency Fellowship. OEG acknowledges support from the MASTS pooling initiative (The Marine Alliance for Science and
Carroll, Emma Louise   +30 more
core   +1 more source

United States Gulf of Mexico Waters provide important nursery habitat for Mexico’s Green turtle nesting populations

open access: yesFrontiers in Marine Science, 2023
Resolving natal populations for juvenile green turtles is challenging given their potential for extensive dispersal during the oceanic stage and ontogenetic shifts among nursery habitats. Mitochondrial DNA markers have elucidated patterns of connectivity
Brian M. Shamblin   +6 more
doaj   +1 more source

The Extent and spatial scale of connectivity among reef fish populations: implications for marine protected areas designated for fisheries enhancement [PDF]

open access: yes, 2003
Enthusiasm for the use of no-take marine protected areas (MPAs) as management tools for the protection and enhancement of coral reef fishes is widespread.
Ludsin, S.A.   +3 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

open access: yesMolecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh   +12 more
wiley   +1 more source

Origins of Six Species of Butterflies Migrating through Northeastern Mexico: New Insights from Stable Isotope (δ2H) Analyses and a Call for Documenting Butterfly Migrations

open access: yesDiversity, 2021
Determining migratory connectivity within and among diverse taxa is crucial to their conservation. Insect migrations involve millions of individuals and are often spectacular. However, in general, virtually nothing is known about their structure.
Keith A. Hobson   +2 more
doaj   +1 more source

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