Results 121 to 130 of about 47,477 (297)
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 +2 more
wiley +1 more source
Oikos, EarlyView.Droughts, increasingly frequent under human‐driven climate change, are expected to intensify globally. Both pulsed and prolonged droughts can strongly affect organismal survival and population dynamics, potentially altering terrestrial communities and ecosystems.
Mattheau S. Comerford +14 more
wiley +1 more source
Cotton facilitates long‐distance seed dispersal by functioning as nest material for birds
Oikos, EarlyView.Cotton (Cossypium) fibres, which grow naturally in bolls around the seeds of cotton plants, have been used for centuries to produce fabric. The presumed natural function of cotton is that these lightweight and fluffy fibres may support wind dispersal of the seeds inside.
Roos van der Meer +6 more
wiley +1 more source
Loggerhead turtle (Caretta caretta) nest predation at Cape Range National Park [PDF]
, 2008 Most of the existing sea turtle populations worldwide are in decline. In particular, loggerhead turtles (Caretta caretta) are listed as endangered and loggerhead nesting populations in Eastern Australia have declined by 86% since the 1970s.
Bradley, J.S. +4 more
core +1 more source
Familiarity and aggression shape long‐term associations and mortality risk in a solitary ungulate
Oikos, EarlyView.Periodic social interactions are important to animal fitness, even in solitary species. For solitary species, these interactions can be unexpected and shaped by previous encounters. Despite being aggressive and largely solitary, black rhinoceroses Diceros bicornis are commonly seen in groups, suggesting they may engage in more social behaviours than ...
Rachel M. Stein, Adrian M. Shrader
wiley +1 more source
Breeding in a den of thieves: pros and cons of nesting close to egg predators
Ecosphere, 2016 Breeding success of many Arctic‐breeding bird populations varies with lemming cycles due to prey switching behavior of generalist predators. Several bird species breed on islands to escape from generalist predators like Arctic fox Vulpes lagopus, but ...
Jimmy deFouw +8 more
doaj +1 more source
Development of the Innate Immune Response in NestlingTree Swallows (Tachycineta bicolor) [PDF]
, 2009 The innate immune system provides an immediate, short term, first line of defense from pathogens; its appearance early in development in vertebrates is evidence of its critical importance.
Stambaugh, T.R.
core +1 more source
Trapped in the web: network architectures spread coevolution and shape adaptation
Oikos, EarlyView.Adaptation is critical for biodiversity to persist under global change. Within ecological communities, species often face tradeoffs between adapting to shifting abiotic conditions and navigating the complex selective pressures imposed by interaction networks.
Alexandre Fuster‐ Calvo +5 more
wiley +1 more source
Reproductive Ecology Of The Florida Scrub-Jay (Aphelocoma Coerulescens) On John F. Kennedy Space Center/Merritt Island National Wildlife Refuge: A Long-Term Study [PDF]
, 2005 From 1988 to 2002 we studied the breeding ecology of Florida Scrub-Jays (Aphelocoma coerulescens) on John F. Kennedy Space Center/Merritt Island National Wildlife Refuge.
Breininger, David R. +5 more
core +1 more source
People and Nature, EarlyView.Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela +4 more
wiley +1 more source