Results 151 to 160 of about 44,404 (306)

Influence of human pressures on large river structure and function [PDF]

open access: yes, 2009
A large river study was conducted as part of the Cross Departmental Research Pool (CDRP) ecological integrity project to (i) provide an overview of the macroinvertebrate faunas of large rivers, including those in deep-water habitats, and (ii) to ...
Clapcott, Joanne E.   +2 more
core   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

open access: yesBoreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe   +3 more
wiley   +1 more source

Regionalization and connectivity in the Gulf of Cádiz and Alborán Sea implication for marine spatial planning and coastal management [PDF]

open access: yes, 2014
This work proposes a regionalization of marine waters south of the Iberian Peninsula based on empirical orthogonal functions and GIS analysis. The regions identified are consistent and correspond to hydrological mesoscale and macroscale structures well ...
Gomez-Moreno, Maria Luisa   +5 more
core  

Effects of landscape context on avian specialist response to increased surface temperature in protected areas

open access: yesConservation Biology, EarlyView.
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge   +2 more
wiley   +1 more source

Factors Beyond Karstification Have Shaped the Population Structure of a Surface‐Dwelling Minnow (Phoxinus lumaireul) Able to Disperse Underground

open access: yesEvolutionary Applications
The Dinaric Karst, a biodiversity hotspot, features complex surface and subterranean hydrological networks that influence aquatic species distribution.
Susanne Reier   +5 more
doaj   +1 more source

A climate–habitat–network robustness framework reveals climate‐driven habitat shifts and corridor resilience for milu in China

open access: yesConservation Science and Practice, EarlyView.
Habitat fragmentation and climate change jointly threaten the persistence of wide‐ranging species, posing complex challenges for conservation planning. However, most current connectivity approaches overlook the integration of species‐specific constraints, climate‐driven dynamics, and quantitative robustness assessments. To bridge this gap, we propose a
Mengdi Fu   +3 more
wiley   +1 more source

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim   +5 more
wiley   +1 more source

Hydrological Connectivity Dominates NO3‐N Cycling in Complex Landscapes – Insights From Integration of Isotopes and Water Quality Modeling

open access: yesWater Resources Research
Distributed water quality modeling often involves considerable uncertainty due to complexity and spatial heterogeneity of hydrological and biogeochemical processes.
Songjun Wu   +4 more
doaj   +1 more source

PFAS from a Discrete‐Event Terrestrial Source Migrates with Groundwater to Intertidal Seepages

open access: yesGroundwater, EarlyView.
PFAS is conveyed to the coastal intertidal zone from sources across the terrestrial landscape. Discharge of PFAS into the coastal ecosystem is complicated in space and time by the ongoing bi‐directional exchange of terrestrial groundwater and ocean water driven by tidal pumping within discharge areas.
Martin A. Briggs   +8 more
wiley   +1 more source

Getting a grip on hydrological and sediment connectivity

open access: yes, 2017
Land degradation is a large problem worldwide, especially in agricultural areas. Between 1-6 billion ha of land worldwide is affected by land degradation. With an increasing world population, more food production is needed and, therefore, more land is converted into agricultural areas.
openaire   +3 more sources

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