Results 11 to 20 of about 787 (144)
Similar Survival Rates of Territorial and Sneaker Males in a Polymorphic Damselfly: A Multi‐Year Study [PDF]
Ecology and EvolutionMale alternative reproductive tactics (ARTs) have been documented across diverse taxa and typically involve a male morph that defends resources to attract females and an alternate morph that exploits this behavior to obtain matings by stealth ...
Yoshitaka Tsubaki +4 more
doaj +2 more sources
Large, but Dispersal‐Limited Populations of the Marsh Fritillary Euphydryas aurinia Persist on Abandoned Military Training Areas Three Decades After the End of the Cold War [PDF]
Ecology and EvolutionMilitary training areas can host important biodiversity, due to the preservation of diverse, nutrient‐poor historical cultural landscapes and an insect‐friendly disturbance regime.
Cindy Schröer +2 more
doaj +2 more sources
Persistence of a declining anuran species across its distribution. [PDF]
PLoS ONEInformation on a species' population dynamics, such as changes in abundance and distribution, can be used to identify declining populations and initiate conservation efforts and protections.
Erin L Koen +5 more
doaj +2 more sources
Physiology and Survival of Intertidal Calcifiers in Two Contrasting Upwelling Systems. [PDF]
Ecol EvolThis study evaluates the physiological responses and survival of two intertidal mollusk species, Chiton granosus and Scurria zebrina, across contrasting upwelling environments. We found that metabolic rates and survival differ between populations exposed to seasonal versus semi‐permanent upwelling.
Hernández-Dauval A +3 more
europepmc +2 more sources
Cormack–Jolly–Seber models: time and age perspectives [PDF]
Stochastic Environmental Research and Risk Assessment, 2020 Survival is a key demographic characteristic in many areas including both human demography and population ecology. However, it is often the case that data collection protocols are different in these areas, resulting in different models and methods of analysis.
Blanca Sarzo, David Conesa, Ruth King
openaire +3 more sources
Global Ecology and Conservation, 2023 The Eastern Canada-West Greenland (EC-WG) bowhead whale (Balaena mysticetus) population is widely distributed across the eastern Canadian Arctic and across Baffin Bay to the western coast of Greenland.
Brooke A. Biddlecombe +4 more
doaj +1 more source
Bayesian analysis of Jolly-Seber type models [PDF]
Environmental and Ecological Statistics, 2016 We propose the use of finite mixtures of continuous distributions in modelling the process by which new individuals, that arrive in groups, become part of a wildlife population. We demonstrate this approach using a data set of migrating semipalmated sandpipers (Calidris pussila) for which we extend existing stopover models to allow for individuals to ...
Matechou, Eleni +4 more
openaire +4 more sources
Apparent Survival of Territorial Golden Eagles Using Non-Invasive Genetic Profiling. [PDF]
Ecol EvolIn a novel study for the species, DNA was extracted from moulted feathers over 4 years involving 21% of the Scottish population of territorial golden eagles, and individuals' genetic profiles were analysed for apparent survival rates. Results showed sexual differences but not between two sub‐populations; very few cases of breeding dispersal were ...
Whitfield DP +4 more
europepmc +2 more sources
Basic and Applied Ecology, 2023 Species living in spatially structured populations require a network of interconnected habitat patches. Due to changes in forest management, this network of habitat patches has been lost for insect species inhabiting open spots within forests. We studied
Heiko Hinneberg +2 more
doaj +1 more source
The abundance of large, piscivorous Ferox Trout (Salmo trutta) in Loch Rannoch, Scotland [PDF]
PeerJ, 2016 Background Ferox Trout are large, long-lived piscivorous Brown Trout (Salmo trutta). Due to their exceptionally large size, Ferox Trout are highly sought after by anglers while their life-history strategy, which includes delayed maturation, multiphasic ...
Alastair Thorne +2 more
doaj +2 more sources