Results 101 to 110 of about 73,324 (308)

Does salinity make a difference—Kidney anatomy of Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

The Anatomical Record, EarlyView.
Abstract As habitat salinity markedly differs between the endangered, freshwater‐dwelling Saimaa ringed seal (Pusa saimensis Nordquist, 1899) and the brackish water‐inhabiting Baltic ringed seal (Pusa hispida botnica Gmelin, 1788), we investigated whether this difference has resulted in morphological changes to their kidneys.
Heini Nihtilä, Juha Laakkonen
wiley   +1 more source

The chronostratigraphy of Late Pleistocene glacial and periglacial aeolian activity in the Tuktoyaktuk Coastlands, NWT, Canada [PDF]

, 2006
Aeolian periglacial sand deposits are common in the Tuktoyaktuk Coastlands of Western Arctic Canada. Regionally extensive and thick aeolian sand-sheet deposits have been observed in two major stratigraphic settings: within a sand unit characterized by ...
Ager, Anderson, Andrews, Bateman, Bateman, Berger, Berger, Berger, Burn, Bégin, Carter, Dallimore, Dijkmans, Dinter, Duk-Rodkin, Duk-Rodkin, Dyke, Dyke, Edwards, Fairbanks, Fryberger, Grootes, Hamilton, Hopkins, Julian B. Murton, Kocurek, Kocurek, Koster, Lambeck, Lea, Lea, Lemmen, MacDonald, Mackay, Mackay, Mark D. Bateman, Martinson, McKee, Mejdal, Michaud, Murray, Murton, Murton, Murton, Murton, Murton, Nelson, Prescott, Riezebos, Ritchie, Ritchie, Ruz, Ruz, Saarnisto, Schwan, Stuiver, Taylor, Vincent, Willemse   +58 more
core   +2 more sources

Use of Restricted Nursing and a Bovine Appeasing Substance on the Welfare, Growth Performance, and Response to Vaccination of Beef Calves at Weaning

Animal Research and One Health, EarlyView.
The effects of restricted nursing (RN) and the administration of a bovine appeasing substance (BAS) on days −8 and 0 in relation to weaning were evaluated. Both strategies were effective in improving the growth performance of beef calves. Regarding welfare, BAS ‐especially on day 0‐ was more effective than RN.
Denise E. Mussalafo, Marcelo Vedovatto, Aylpy R. D. Santos, Dalton M. Oliveira, Fabiana A. M. Sterza, Mariana Santos, Helena B. C. R. Batista, Jaíne G. Garcia, Andréa R. D. L. Souza   +8 more
wiley   +1 more source

Using GIS to Quantify Patterns of Glacial Erosion on Northwest Iceland: Implications for Independent Ice Sheets

, 2009
Glacial erosion patterns on northwest Iccliind are quantified using a Geographic Information System (GIS) in order to interpret subglacial characteristics of part of northwest Iceland affected by ice sheet glaciation.
Johnson, Jeremiah S., Principato, Sarah M.   +1 more
core  

Controls on Cyclic Formation of Quaternary Early Diagenetic Dolomite [PDF]

, 2018
The origin of sedimentary dolomite and the factors that control its formation within the geological record remain speculative. In most models, dolomite formation is linked to evaporative conditions, high water temperature, increasing Mg/Ca ratio ...
Bontognali, T. R. R., Immenhauser, A., Kwiecien, Ola, McCormack, J.   +3 more
core   +2 more sources

Potential threats of glacial lake changes to the Sichuan-Tibet Railway

Journal of Glaciology
The Sichuan-Tibet Railway, China's second inland railway to Tibet, is currently being constructed and will run between Chengdu and Lhasa. It will cross the southeastern Tibetan Plateau and be surrounded by glacial lakes, some of which may pose a threat ...
Menger Peng, Guoqing Zhang, Jinyuan Yu, Weicai Wang, Fenglin Xu, Sonam Rinzin   +5 more
doaj   +1 more source

Assessment of Continuous Growth of Glacial Lakes in the Teesta River Basin Using Semi-Automated Geospatial Approach [PDF]

Nature Environment and Pollution Technology
Global warming is one of the primary causes contributing to melting glaciers and shrinking of glaciers moth. Because of the glacier retreat, more lakes increase the risk of flooding in people’s homes and lives.
A. K. Shukla, I. Ahmad, S. K. Jain and M. K. Verma
doaj   +1 more source

Heterogeneous changes in global glacial lakes under coupled climate warming and glacier thinning

Communications Earth & Environment
Global glacial lakes have expanded markedly in recent decades, accompanied by many catastrophic glacial lake outburst floods. However, our understanding of glacial lake evolution and connections with global warming and glacier thinning remains ...
Taigang Zhang, Weicai Wang, Baosheng An
doaj   +1 more source

Refined glacial lake extraction in a high-Asia region by deep neural network and superpixel-based conditional random field methods [PDF]

The Cryosphere
Remote sensing extraction of glacial lakes is an effective way of monitoring water body distribution and outburst events. At present, the lack of glacial lake datasets and the edge recognition problem of semantic segmentation networks lead to poor ...
Y. Cao, R. Pan, M. Pan, R. Lei, P. Du, X. Bai   +5 more
doaj   +1 more source

Neotropical Bird Migration During The Ice Ages: Orientation And Ecology [PDF]

, 1996
Reconstruction of breeding habitat of North American Neotropical migrants 18,000 years ago and 9,000 years ago indicated major shifts in both location and composition of plant communities relative to present conditions.
Webb, T., III, Williams, Timothy C., , \u2764   +1 more
core   +2 more sources