Results 41 to 50 of about 1,943 (189)

Tests of an additive harvest mortality model for northern bobwhite Colinus virginianus harvest management in Texas, USA

open access: yesWildlife Biology, Volume 19, Issue 1, Page 12-18, March 2013., 2013
We evaluated the application of using an additive harvest mortality model (AHMM) as a harvest management strategy for northern bobwhites Colinus virginianus during the 2007/08 and 2008/09 hunting seasons in two ecoregions of Texas: the Rolling Plains (RP) and the South Texas Plains (STP). We collected field data on three study sites/ecoregion (of 400‐1,
Joseph P. Sands   +7 more
wiley   +1 more source

Exergetic Model of Secondary Successions for Plant Communities in Arid Chaco (Argentina)

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
Ecosystems are open systems where energy fluxes produce modifications over plant communities. According to the state and transition model, plant formations are defined by changes in natural conditions and disturbs. Based on these changes, it is possible to define vectors that show the tendencies of the communities towards other states.
Marcos Karlin   +8 more
wiley   +1 more source

Population dynamics, survival, and movements of Texas tortoises in a national park in southern Texas

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
Texas tortoise abundance in a small national park in South Texas, USA, declined by >25%, from an estimated 273 tortoises in 2014 to 204 tortoises in 2024. The severity of the decline varied across survey units, but abundance remained highest in areas having greater canopy cover and experiencing less invasion by Guinea grass.
Tracey D. Tuberville   +4 more
wiley   +1 more source

The role of competition in moderating plant–soil feedback for restoring ecosystems invaded by Brazilian peppertree (Schinus terebinthifolia Raddi)

open access: yesRestoration Ecology, Volume 33, Issue 8, November 2025.
Abstract Introduction Ecosystem restoration requires the management of invasive plants due to the harmful effects they have on both above‐ and belowground ecosystem processes. Belowground soil modifications by invasive plants, particularly those driven by plant–soil feedbacks (PSFs), are thought to significantly influence an invader's success by ...
Megann M. Harlow   +3 more
wiley   +1 more source

A Phytogeographical Classification of the North American Pacific Coast Based on Climate, Vegetation and a Floristic Analysis of Vascular Plants

open access: yesJournal of Botany, Volume 2009, Issue 1, 2009., 2009
This study was designed to explore floristic variation along the Pacific coast from Cook Inlet, Alaska, to the southern tip of Baja California, Mexico. Data corresponding to 965 phytosociological relevés (including 686 vascular plants) obtained by sampling 279 coastal sites were examined.
Manuel Peinado   +4 more
wiley   +1 more source

Efecto de la tala de Podocarpus glomeratus (Podocarpaceae) sobre la estructura de un bosque de neblina en los Andes (Cochabamba, Bolivia)

open access: yesRevista Peruana de Biología, 2011
En el presente trabajo fueron analizados los efectos de la tala sobre la estructura, composición y la regeneración natural de un bosque andino de neblina. Se instalaron 40 parcelas de 707 m2 para medir individuos >10 cm DAP y sub-parcelas de 5 m2 para
Ariel Isaías Ayma-Romay   +1 more
doaj   +1 more source

NESTING AND SURVIVAL OF RIO GRANDE TURKEYS IN NORTHCENTRAL TEXAS

open access: yesWildlife Society Bulletin, Volume 2000, Issue S1, Page 85-91, January 2000., 2000
Abstract: We studied survival and habitat use of female Rio Grande turkeys (Meleagris gallopavo intermedia) during the nesting period in the Rolling Plains and Cross Timbers ecotone of northcentral Texas. Mortalities occurred during movement from winter roosts and during nesting.
Scott D. Hohensee, Mark C. Wallace
wiley   +1 more source

Biochemical parameters of silver catfish (Rhamdia quelen) after transport with eugenol or essential oil of Lippia alba added to the water [PDF]

open access: yes, 2017
The transport of live fish is a routine practice in aquaculture and constitutes a considerable source of stress to the animals. The addition of anesthetic to the water used for fish transport can prevent or mitigate the deleterious effects of transport ...
A. G. Becker   +50 more
core   +2 more sources

Understanding an ecological tug of war: Disentangling competition between native and domesticated ungulates

open access: yesEcosphere, Volume 15, Issue 4, April 2024.
Abstract Competition is a complex ecological process involving individual and community interactions at ecological and evolutionary time scales. Individuals within and between species can compete through two mechanisms: exploitative and interference competition. These mechanisms often co‐occur, making it difficult to develop a mechanistic understanding
Bryan D. Spencer   +7 more
wiley   +1 more source

Screening for extracts with insect antifeedant properties in native plants from central Argentina [PDF]

open access: yes, 2014
Se evaluaron los extractos etanólicos obtenidos de las partes aéreas de 64 plantas de la región Central de Argentina, como antialimentarios de insectos mediante ensayos de elección, contra Epilachna paenulata (Coleoptera: Coccinellidae).
Carpinella, Maria Cecilia   +5 more
core  

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