Results 61 to 70 of about 4,909 (257)

Population dynamics of Townsend's big‐eared bats: effect of age and drought on survival

open access: yesThe Journal of Wildlife Management, EarlyView.
We estimated age‐specific yearly survival of female Townsend's big‐eared bats in Inyo and Mono Counties, California. We found that both juvenile and adult survival were negatively impacted by drought, and that detection probability was lower for hand‐recapture than for bats detected via pass‐through antenna arrays.
Natalie M. Hamilton   +3 more
wiley   +1 more source

Integrating growth and capture–mark–recapture models reveals size‐dependent survival in an elusive species [PDF]

open access: yesEcosphere, 2018
AbstractSurvival is a key vital rate for projecting the viability of wild populations. Estimating survival is difficult for many rare or elusive species because recapture rates of marked individuals are low, and the ultimate fate of individuals is unknown.
Jonathan P. Rose   +3 more
openaire   +1 more source

Dog attacks on wild desert tortoises: A risk model

open access: yesThe Journal of Wildlife Management, EarlyView.
Domestic dogs attack and severely injure wild desert tortoises at the urban and ex‐urban interface with deserts. Severe trauma to tortoises increased 4 times to shell and limbs and 16.5 times to the gular horn over the decades between the 1970s and 2000s. Tortoises were at exponential risk of severe trauma when living within 12 km of settlements, towns,
Andrea S. Carlson   +2 more
wiley   +1 more source

N-mixture models reliably estimate the abundance of small vertebrates

open access: yesScientific Reports, 2018
Accurate measures of species abundance are essential to identify conservation strategies. N-mixture models are increasingly used to estimate abundance on the basis of species counts.
Gentile Francesco Ficetola   +16 more
doaj   +1 more source

Utilization of Capture-Mark-Recapture for the Study of Recruitment and Population Growth Rate

open access: yesBiometrics, 1996
Capture-mark-recapture data has been extensively used for the study of survival. However, recruitment and population growth rate can be investigated as well. The study of recruitment is shown to be equivalent to the study of survival in reverse and can be carried out by inverting capture histories.
openaire   +2 more sources

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

open access: yesOikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald   +7 more
wiley   +1 more source

Stratified sampling enhances the understanding of bat–fruit networks in the southern Atlantic Forest

open access: yesOikos, EarlyView.
Few studies have sought to understand the vertical patterns of bat–fruit systems, and therefore, it is not possible to evaluate whether interpretations based on data collected from a single stratum adequately represent the interaction patterns of this system. In this context, we evaluated the dissimilarity in the assemblage of frugivorous bats, plants,
Karolaine Porto Supi   +3 more
wiley   +1 more source

Fungal infection has sublethal effects in a lowland subtropical amphibian population

open access: yesBMC Ecology, 2018
Background The amphibian chytrid fungus, Batrachochytrium dendrobatidis (Bd), has been implicated as a primary cause of decline in many species around the globe.
Laura A. Brannelly   +4 more
doaj   +1 more source

Linking differences in personality to demography in the wandering albatross

open access: yesOikos, EarlyView.
Population dynamics are shaped by individual differences. With a good understanding of the relationships between individual differences and vital rates, population models can be improved to yield more realistic and detailed demographic projections. Personality is expected to shape individual differences in performance.
Joanie Van de Walle   +7 more
wiley   +1 more source

Application of network theory to mark recapture data allows insights into population structure of two Heliconius species [PDF]

open access: yesNetwork Biology, 2015
By noting the spatial location of captured individuals mark-recapture studies create a collection of discrete events spread in space and time. This setup is appropriate for network modeling where the vertices (or nodes) are the points of capture and ...
Luciana L.F. de Lima   +2 more
doaj  

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