Results 41 to 50 of about 4,931,670 (329)

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Níveis de lisina digestível para leitões dos 6 aos 15 kg Digestible lysine level for piglets from 6 to 15 kg

Revista Brasileira de Zootecnia, 2008
Este estudo foi realizado para avaliar o efeito de diferentes níveis de lisina digestível na ração sobre o desempenho de leitões dos 6 aos 15 kg. Foram utilizados 120 leitões (80 machos castrados e 40 fêmeas), distribuídos em um delineamento experimental
Christiane Garcia Vilela Nunes, Rita Flávia Miranda de Oliveira, Juarez Lopes Donzele, Jefferson Costa de Siqueira, Adriana Aparecida Pereira, Bruno Alexander Nunes Silva   +5 more
doaj   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

The Finiteness Requirement for Six-Dimensional Euclidean Einstein Gravity [PDF]

, 1999
The finiteness requirement for Euclidean Einstein gravity is shown to be so stringent that only the flat metric is allowed. We examine counterterms in 4D and 6D Ricci-flat manifolds from general invariance arguments.Comment: 15 pages, Introduction is ...
Bastianelli F, Bleecker D, Critchley R, Deser S, Duff M J, G W Gibbons, Gibbons G W, Gibbons G W, Ichinose S, Ichinose S, Lichnerowicz A, S Ichinose, Siklos S T C, t'Hooft G, van Nieuwenhuizen P   +14 more
core   +2 more sources

Optimizing alternate brackish and freshwater drip irrigation with film mulching for cotton production in Southern Xinjiang

Guan'gai paishui xuebao
【Objective】 Southern Xinjiang has limited freshwater but relatively abundant saline groundwater. To optimize the use of these water resources, we investigate the effect of alternate brackish and freshwater drip irrigation with film mulching on soil water
XU Peiwen, LIU Hao, NING Huifeng, ZHANG Xianbo, GAO Fukui, ZHOU Wang, XIE Yucai, WANG Jinglei   +7 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

The Separateness of Persons: A Moral Basis for a Public Justification Requirement [PDF]

, 2017
In morally grounding a public justification requirement, public reason liberals frequently invoke the idea that persons should be construed as “free and equal.” But this tells us little with regard to what it is about us that makes us free or how a claim
Tyndal, Jason
core   +1 more source

Nutritional plans for boars

Revista Brasileira de Zootecnia, 2012
The objective of the present study was to evaluate nutritional plans for boars. Four hundred animals of 67 to 135 days of age and initial weight of 27.75±1.61 kg were distributed in a randomized block design with seven nutritional plans for boars (9.0-8 ...
Charles Kiefer, Juarez Lopes Donzele, Rita Flavia Miranda de Oliveira, Liliane Suguisawa, Jorge Murilo Suguisawa, Ana Carolina Wider Marques   +5 more
doaj   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

Population Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source