Results 41 to 50 of about 4,493 (204)

Drivers and Challenges of Micro‐Irrigation Adoption and Intensity in India: A Study of Four States

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT India's food security relies substantially on groundwater, but inefficient irrigation is seriously depleting this resource. Micro‐irrigation (MI) improves irrigation application efficiency and productivity, yet adoption remains low. This study examines MI adoption across four major Indian states—Uttar Pradesh, Maharashtra, Madhya Pradesh and ...
Gurpreet Singh   +2 more
wiley   +1 more source

Corticosterone Under Experimental Manipulation of Nutrition and Parasite Burden in a Wild Rodent System

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Environmental pressures shape survival and life‐history dynamics partly by triggering the release of glucocorticoids, whose short‐term benefits but long‐term costs make it essential to understand what drives their levels. Here, we used an experimental manipulation of two environmental stressors—food availability and parasite burden—to directly
Sarah E. Wolf   +4 more
wiley   +1 more source

A spatially explicit approach for estimating space use and density of common genets [PDF]

open access: yesAnimal Biodiversity and Conservation, 2014
Many species that occur at low densities are not accurately estimated using capture–recapture methods as such techniques assume that populations are well–defined in space.
Sarmento, P.   +3 more
doaj  

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

open access: yesPLoS 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   +4 more
doaj   +1 more source

Noninvasive camera data and spatial capture–recapture models reveal strong temporal variation in fawn survival

open access: yesEcosphere, 2023
In south Florida, white‐tailed deer (Odocoileus virginianus) are the primary prey of the endangered Florida panther (Puma concolor coryi). Deer populations in some regions of south Florida have declined in recent years, and the role of fawn survival and ...
Kristin N. Engebretsen   +5 more
doaj   +1 more source

From Imposter to Original: How Organizational Leaders Shape and Develop a Leader Identity Through Meaning‐Making of Experiences

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT This article describes how people in formal leadership roles shape and develop a leader identity through meaning‐making of experiences across time and situations. Drawing on qualitative data from in‐depth life narrative interviews with 22 organizational leaders, enriched through photo and object elicitation techniques as well as timeline ...
Sonja Zaar   +2 more
wiley   +1 more source

A comparison of monitoring methods for inferring demographics of a pond‐breeding amphibian population over 14 years

open access: yesThe Journal of Wildlife Management, EarlyView.
We used 4 sampling methods to estimate or index the abundance and sex ratio of spotted salamanders (Ambystoma maculatum) over 14 years. The present study highlights the importance of considering individual heterogeneity in capture probability when estimating abundance of pond‐breeding amphibians from capture data with imperfect detection. Abstract Long‐
Patrick D. Moldowan   +3 more
wiley   +1 more source

Individual movement modeling expands the power of migratory species observations: North Atlantic right whale case study

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Understanding a population's distribution depends on observing the presence and movement of individuals throughout their range. For highly mobile marine species, these observations typically rely on high effort monitoring programs. Tracking enough individuals to understand trends in movement behavior is not always logistically feasible, and ...
Abigail M. Kreuser   +3 more
wiley   +1 more source

Global analysis of annual survival among shorebirds reveals a negative effect of migration distance and a decline in recent decades

open access: yesOikos, EarlyView.
Annual survival is a key demographic parameter driving population trends in wildlife populations. However, despite numerous species‐specific or regional studies, global reviews of the factors affecting the survival of declining taxa remain scarce. Here, we investigated annual survival of fledged immature and adult shorebirds, a globally‐distributed and
Guillaume Dillenseger   +5 more
wiley   +1 more source

Habitat fragmentation and amount drive within‐species variation in dispersal kernels and limit transferability across landscapes

open access: yesOikos, EarlyView.
Dispersal is a key ecological trait that ensures connectivity, gene flow, and range dynamics, yet empirical information about how dispersal distances vary within species remains scarce. Many studies, investigating for instance connectivity conservation, use typical species‐specific dispersal kernels without accounting for the fact that these kernels ...
Jette Wolff   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy