Results 11 to 20 of about 277,963 (305)
When and where to count? Implications of migratory connectivity and nonbreeding distribution to population censuses in a migratory bird population [PDF]
, 2022 Migratory connectivity is a metric of the co-occurrence of migratory animals originating from different breeding sites, and like their spatial dispersion, can vary substantially during the annual cycle.
Piironen Antti +5 more
core +1 more source
Using statistics to design and estimate vital rates in matrix population models for a perennial herb [PDF]
, 2022 Matrix population models are widely used to assess population status and to inform management decisions. Despite existing theories for building such models, model construction is often partially based on expert opinion.
Natalie Z. Kerr +2 more
core +1 more source
Are there ecological limits to population? [PDF]
Proceedings of the National Academy of Sciences, 1993 Policy on population and environment in the United States and abroad has been vacillating, unsure of its course; it would be more decisive if the several disciplines could agree on the nature of the problems and their urgency. The two disciplines principally concerned are biology and economics, and the contribution of this paper is to identify eight of
openaire +4 more sources
F1000Research, 2015 Observations on 12 groups comprised of two adult males and one adult female (some included one or two fledglings), tame, individually marked, Arabian babblers (Turdoides squamiceps) in the rift valley in Israel revealed that the babblers compete to guard.
Arnon Dattner +2 more
doaj +1 more source
An a posteriori measure of network modularity [v3; ref status: indexed, http://f1000r.es/2ju]
F1000Research, 2013 Measuring the modularity of networks, and how it deviates from random expectations, important to understand their structure and emerging properties. Several measures exist to assess modularity, which when applied to the same network, can return both ...
Timothée Poisot
doaj +1 more source
Statistical ecology comes of age [PDF]
, 2014 The desire to predict the consequences of global environmental change has been the driver towards more realistic models embracing the variability and uncertainties inherent in ecology.
Schurr, Frank M +63 more
core +1 more source
F1000Research, 2014 We analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America.
María Zubillaga +3 more
doaj +1 more source
Forage senescence and disease influence elk pregnancy across the Greater Yellowstone Ecosystem
Ecosphere, 2023 For various temperate ungulate species, recent research has highlighted the potential for spring vegetation phenology (“green‐up”) to influence individual condition, with purported benefits to population productivity.
Owen R. Bidder +17 more
doaj +1 more source
F1000Research, 2014 We analyzed the effects of population density and climatic variables on the rate of population growth in the guanaco (Lama guanicoe), a wild camelid species in South America.
María Zubillaga +3 more
doaj +1 more source
Green‐brown polymorphism in alpine grasshoppers affects body temperature
Ecology and Evolution, 2020 Ectothermic animals depend on external heat sources for pursuing their daily activities. However, reaching sufficiently high temperature can be limiting at high altitudes, where nights are cold and seasons short.
Günter Köhler, Holger Schielzeth
doaj +1 more source