Results 71 to 80 of about 2,631,405 (248)

Estimating demographic parameters using a combination of known-fate and open N-mixture models

, 2015
1. Accurate estimates of demographic parameters are required to infer appropriate ecological relationships and inform management actions. Recently developed N-mixture models use count data from unmarked individuals to estimate demographic parameters, but
Adams, Layne G., Johnson, Devin S., Lindberg, Mark S., Schmidt, Joshua H.   +3 more
core   +1 more source

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

Ecography, EarlyView.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga, Anderson S. Bueno, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Affonso H. N. Souza, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Twenty years of dynamic occupancy models: a review of applications and look to the future

Ecography, EarlyView.
Since their introduction over 20 years ago, dynamic occupancy models (DOMs) have become a powerful and flexible framework for estimating species occupancy across space and time while accounting for imperfect detection. As their popularity has increased and extensions have further expanded their capabilities, DOMs have been applied to increasingly ...
Saoirse Kelleher, Gurutzeta Guillera-Arroita, Jane Elith, Natalie J. Briscoe   +3 more
wiley   +1 more source

Consequences of ignoring group association in spatial capture–recapture analysis

Wildlife Biology, 2020
Many models in population ecology, including spatial capture–recapture (SCR) models, assume that individuals are distributed and detected independently of one another.
R. Bischof, P. Dupont, C. Milleret, J. Chipperfield, J. Andrew Royle   +4 more
semanticscholar   +1 more source

From shadows to data: first robust population assessment of snow leopards in Pakistan

Ecography, EarlyView.
The snow leopard Panthera uncia is a flagship species of the greater Himalayan region and symbolizes the integrity of this ecological system. Within the greater Himalayas, Pakistan holds special significance as the north of the country represents a confluence of three major mountain ranges (Hindu Kush, Pamir–Karakoram, and Himalaya).
Muhammad Ali Nawaz, Shoaib Hameed, Jaffar Ud Din, Hussain Ali, Shakeel Ahmad, Ian Durbach, Mehmood Ghaznavi, Mohsin Farooque, Naeem Iftikhar, Muhammad SamarHussain Khan   +9 more
wiley   +1 more source

DENSITY: software for analysing capture-recapture data from passive detector arrays [PDF]

Animal Biodiversity and Conservation, 2004
A general computer-intensive method is described for fitting spatial detection functions to capture-recapture data from arrays of passive detectors such as live traps and mist nets.
Efford, M. G., Dawson, D. K., Robbins, C. S.   +2 more
doaj  

Data integration for inference about spatial processes: A model-based approach to test and account for data inconsistency.

PLoS ONE, 2017
Recently-developed methods that integrate multiple data sources arising from the same ecological processes have typically utilized structured data from well-defined sampling protocols (e.g., capture-recapture and telemetry).
Simone Tenan, Paolo Pedrini, Natalia Bragalanti, Claudio Groff, Chris Sutherland   +4 more
doaj   +1 more source

Estimating preharvest density, adult sex ratio, and fecundity of white‐tailed deer using noninvasive sampling techniques

Ecology and Evolution, 2021
Adult sex ratio and fecundity (juveniles per female) are key population parameters in sustainable wildlife management, but inferring these requires abundance estimates of at least three age/sex classes of the population (male and female adults and ...
Jon E. Brommer, Jenni Poutanen, Jyrki Pusenius, Mikael Wikström   +3 more
doaj   +1 more source

Diffusion and Home Range Parameters from Rodent Population Measurements in Panama

, 2005
Simple random walk considerations are used to interpret rodent population data collected in Hantavirus-related investigations in Panama regarding the short-tailed cane mouse, \emph{Zygodontomys brevicauda}.
Abramson, G., Giuggioli, L., Kenkre, V. M., Marcé, E., Suzán, G., Yates, T. L.   +5 more
core   +2 more sources

The importance of independence in unmarked spatial capture–recapture analysis

Wildlife Biology
Wildlife populations can be unmarked, meaning individuals lack distinguishing features for individual identification. Populations may also exhibit non‐independent movements, meaning individuals move together.
Catherine Sun, C. Burton, Zambian Carnivore Programme   +2 more
semanticscholar   +1 more source