Results 11 to 20 of about 12,977 (194)

Jaguar Density at the Northeastern Limit of Its Distribution in Mexico. [PDF]

Ecol Evol
This study presents the first estimate of jaguar density in northeastern Mexico using a spatial capture–recapture model with random thinning, which incorporates both identified and unidentified camera trap detections. Conducted over 91 days with 104 cameras, the model yielded a density of 1.29 individuals per 100 km2 in the El Cielo–Sierra de Tamalave ...
Manuel-de la Rosa ZA, Soria-Díaz L, Barriga-Vallejo C, Mendoza-Gutiérrez GR, Martínez-González N, Astudillo-Sánchez CC, Jiménez J.   +6 more
europepmc   +2 more sources

Habitat Changes at the Local Scale Have Major Impacts on Waterfowl Populations Across a Migratory Flyway. [PDF]

Glob Chang Biol
Migratory waterbirds are declining worldwide due to habitat loss, but not much is known about how the loss of specific wetlands can affect waterbird populations at the biogeographical scale. To investigate that, we used the Guadalquivir Marshes (SW Spain) as a case study and combined 38 years of waterfowl winter counts with environmental and remote ...
de Felipe M, Amat JA, Arroyo JL, Rodríguez R, Díaz-Paniagua C.   +4 more
europepmc   +2 more sources

An emerging coastal wetland management dilemma between mangrove expansion and shorebird conservation. [PDF]

Conserv Biol, 2022
Abstract Coastal wetlands around the world have been degraded by human activities. Global declines in the extent of important coastal wetlands, including mangroves, salt marshes, and tidal flats, necessitate mitigation and restoration efforts. However, some well‐meaning management actions, particularly mangrove afforestation, can inadvertently cause ...
Choi CY, Xiao H, Jia M, Jackson MV, Lai YC, Murray NJ, Gibson L, Fuller RA.   +7 more
europepmc   +2 more sources

Quantifying the impacts of future shoreline modification on biodiversity in a case study of coastal Georgia, United States. [PDF]

Conserv Biol
Abstract People often modify the shoreline to mitigate erosion and protect property from storm impacts. The 2 main approaches to modification are gray infrastructure (e.g., bulkheads and seawalls) and natural or green infrastructure (NI) (e.g., living shorelines).
Coleman DJ, Gittman RK, Landry CE, Byers JE, Alexander CR, Coughlin GP, Woodson CB.   +6 more
europepmc   +2 more sources

Effects of floral resources on honey bee populations in Mexico: Using dietary metabarcoding to examine landscape quality in agroecosystems. [PDF]

Ecol Evol
This study investigates how landscape diversity and climatic factors affect the populations and nutritional health of honey bee colonies in Mexico. It was found that greater landscape diversity correlates with higher pollen diversity, while areas with more agriculture and urbanization show lower bee densities.
Balvino-Olvera FJ, Olivares-Pinto U, González-Rodríguez A, Aguilar-Aguilar MJ, Ruiz-Guzmán G, Lobo-Segura J, Cortés-Flores J, Cristobal-Perez EJ, Martén-Rodríguez S, Patiño-Conde V, Quesada M.   +10 more
europepmc   +2 more sources

Analysis of Aquifer‐System Deformation in the Doñana Natural Space (Spain) Using Unsupervised Cloud‐Computed InSAR Data and Wavelet Analysis

Water Resources Research, Volume 59, Issue 8, August 2023., 2023
Abstract This work is focused on the Almonte‐Marismas aquifer located within Doñana Natural Space (SW Spain); this aquifer is threatened by droughts, irrigation‐driven groundwater overexploitation, urban use, and the potential reactivation of gas extraction and storage projects. We present ground deformation measurements from Sentinel‐1 Interferometric
M. González‐Jiménez, C. Guardiola‐Albert, P. Ezquerro, H. Aguilera, M. Béjar‐Pizarro, N. Naranjo‐Fernández, G. Bru, G. Herrera   +7 more
wiley   +1 more source

Residents as gratuitous referrals at destination: An integrative model from altruistic values to pro‐tourism behavior

International Journal of Tourism Research, Volume 25, Issue 3, Page 359-371, May/June 2023., 2023
Abstract The altruistically shared information provided by residents is significant for travelers, affecting decisions they postpone until arrival at their destination. This study integrates altruism as a personal value with the basic postulates of social exchange theory and theory of reasoned action to explain the behavior of residents in terms of ...
María Ángeles Plaza‐Mejía, Juana María Haldon‐Hermoso, Nuria Porras‐Bueno   +2 more
wiley   +1 more source

AMPHORAE FROM BAETICA. NEW DATA RELEVANT TO RURAL PRODUCTION IN THE GUADALQUIVIR VALLEY (FIRST CENTURY BC–FIFTH/SIXTH CENTURIES AD)

Oxford Journal of Archaeology, Volume 41, Issue 4, Page 447-467, November 2022., 2022
Summary One of the most prolific areas of agrarian production of the Roman Empire was the Guadalquivir valley of Hispania Baetica. The current study was carried out in the region downstream from Corduba (Córdoba), the capital of Baetica. Knowledge of amphorae from this zone, often underrepresented at consumption sites, has in recent times undergone a ...
Iván González Tobar
wiley   +1 more source

On 'Opuntia spinulifera' and 'O. streptacantha' (Cactaceae), new to Spain, and the status of 'O. huajuapensis' in that country

Mediterranean Botany, 2020
Opuntia spinulifera and O. streptacantha are reported for the first time from Spain. Both are more or less naturalized in scattered localities in Ayamonte (province of Huelva, SW Spain) where they were previously confused with O. huajuapensis.
Filip Verloove, Enrique Sanchez Gullon, Alex Guiggi   +2 more
doaj   +1 more source

Fine-scale population structure and asymmetrical dispersal in an obligate salt-marsh passerine, the Saltmarsh Sparrow (Ammodramus Caudacutus) [PDF]

, 2012
Understanding the spatial scale of gene flow can yield valuable insight into the ecology of an organism and guide conservation strategies. Fine-scale genetic structure is uncommon in migratory passerines because of their high vagility and presumed high ...
Babbitt, Kimberly J., Kovach, Adrienne I., O\u27Brien, Kathleen M., Walsh, Jennifer   +3 more
core   +2 more sources