Results 81 to 90 of about 277,963 (305)

Biological invasions in agricultural settings: insights from evolutionary biology and population genetics [PDF]

open access: yes, 2011
Invasion biology and agriculture are intimately related for several reasons and in particular because many agricultural pest species are recent invaders. In this article we suggest that the reconstruction of invasion routes with population genetics-based
Thomas Guillemaud   +12 more
core   +1 more source

Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China

open access: yesAdvanced Science, EarlyView.
This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang   +3 more
wiley   +1 more source

Discovery of continental-scale travelling waves and lagged synchrony in geometrid moth outbreaks prompt a re-evaluation of mountain birch/geometrid studies [v1; ref status: indexed, http://f1000r.es/nr]

open access: yesF1000Research, 2013
The spatio-temporal dynamics of populations of two 9-10 year cyclic-outbreaking geometrids, Operophtera brumata and Epirrita autumnata in mountain birch forests in northern Fennoscandia, have been studied since the 1970´s by a Swedish-Norwegian research ...
Olle Tenow
doaj   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

open access: yesAdvanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

POTENTIAL DENSITY DEPENDENCE IN WILD TURKEY PRODUCTIVITY IN THE SOUTHEASTERN UNITED STATES

open access: yesWildlife Society Bulletin, 2015
: Observations in recent years by state agency biologists in the southeastern United States that are members of the Southeast Wild Turkey Working Group (SEWTWG) have indicated region‐wide declines in productivity indices of wild turkeys (Meleagris ...
Michael E. Byrne   +2 more
doaj   +1 more source

Changes in the life history traits of the European Map butterfly, Araschnia levana (Lepidoptera: Nymphalidae) with increase in altitude

open access: yesEuropean Journal of Entomology, 2011
Climatic conditions can modify the life history traits, population dynamics and biotic interactions of species. Therefore, adaptations to environmental factors such as temperature are crucial for species survival at different altitudes.
Kathrin D. WAGNER   +2 more
doaj   +1 more source

Inference From Gene to Population: Propagating Uncertainty In Estimates of Population Characteristics Through Ecological Scales [PDF]

open access: yes, 2010
A current trend in population biology is the increasing realisation of the effect of individual variability on some of the big patterns of population dynamics.
Chipperfield, Joseph
core  

Fishing, reproductive volume and regulation: population dynamics and exploitation of the eastern Baltic cod

open access: yes, 2016
The relative importance of exploitation rate and environmental variability in generating fluctuations of harvested populations is a key issue in academic ecology as well as population management.
Anders Wikström   +19 more
core   +1 more source

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

The Development of Local News Collaboration: A Population Ecology Perspective

open access: yesInternational Journal of Communication, 2023
The increasingly popular local news collaboration (LNC), a form of local news production, was analyzed as a budding population or collection of entities with increasingly similar forms and practices. Growth of the population over time is examined by both
Wilson Lowrey   +2 more
doaj  

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