Results 161 to 170 of about 134,827 (315)

The case report – an endangered species [PDF]

Anaesthesia, 2001
A, May, S, Yentis, D, Dob
openaire   +2 more sources

Integrating Molt Migration Into Physiological Assessments of Inter-Population Stress in a Globally Endangered Species. [PDF]

Ecol Evol
Bai S, Solovyeva D, Wang X, Xu F, Li P, Wang L, Liu B, Wang H, Gong Y.   +8 more
europepmc   +1 more source

Coexistence, crossover and extirpation in coalescent communities and ecotones

Oikos, EarlyView.
When two ecological communities come into contact, the strength of their mixing determines whether species coexist, extirpate, or extend their ranges. We present analytical formulas and simulations describing these transitions. Specifically, we derive abundance shifts upon community coalescence, identify the critical mixing strength leading to first ...
Martin Heidelman, Dervis Can Vural
wiley   +1 more source

Herbicide impacts on exotic grasses and a population of the critically endangered herb "Calystegia affinis" (Convolvulaceae) on Lord Howe Island

, 2013
Introduced perennial grasses are capable of altering the habitat of native species, causing reductions in population size and vigour, and potentially affecting life-history processes such as survival, pollination and seedling recruitment. We examined the
Coenraads, Robert, Auld, Tony D., Brown, Dianne, Hutton, Ian, Ooi, M. K. J., Denham, Andrew J.   +5 more
core  

How many species in the United States warrant consideration for Endangered Species Act protection? [PDF]

PeerJ
Greenwald N, Kemppinen K, Harlan W, Miller J.   +3 more
europepmc   +1 more source

From the brink of extinction to regulation: northern Europe's white‐tailed eagles now face density dependence and climate constraints after rapid population growth

Oikos, EarlyView.
Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen, Elisabeth Hansen, Jan Ove Bustnes   +2 more
wiley   +1 more source

Endangered Species Technical Bulletin Volume XII, No. 5–6, May–June 1987

, 1987
May-June 1987 edition of the U.S. Fish and Wildlife Service’s Endangered Species Technical Bulletin. Includes a special report on the Dusky Seaside Sparrow. Issue is numbered Vol. XII, No.
U.S. Fish and Wildlife Service Endangered Species Program, Sykes, Paul W., Jr.   +1 more
core  

Are investigator-initiated clinical trials becoming an 'endangered species'? [PDF]

RMD Open
Marzo-Ortega H, De Marco G.
europepmc   +1 more source

Population recovery of an endangered macaw enhances long‐distance seed dispersal via stomatochory

Oikos, EarlyView.
Seed dispersal by large, mobile vertebrates plays a key role in shaping plant spatial dynamics and community structure. However, how variation in animal population size influences the magnitude and spatial scale of seed dispersal remains poorly understood.
Giulyana A. Benedicto, Erica C. Pacífico, Mathias M. Pires   +2 more
wiley   +1 more source

Development of Metagenomic Methods for Health Monitoring of Endangered Species Using Fecal Samples. [PDF]

Evol Appl
Sapino R, Fernández-González Á, Castresana J.   +2 more
europepmc   +1 more source