2010
DOI: 10.1007/s13280-010-0020-9
|View full text |Cite
|
Sign up to set email alerts
|

Wintering French Mallard and Teal Are Heavier and in Better Body Condition than 30 Years Ago: Effects of a Changing Environment?

Abstract: Animal populations are exposed to large-scale anthropogenic impact from e.g. climate change, habitat alteration and supplemental stocking. All of these may affect body condition in wintering dabbling ducks, which in turn may affect an individual's survival and reproductive success. The aim of this study was to assess whether there have been morphometric changes in Mallard (Anas platyrhynchos) and Teal (Anas crecca) over the last 30 years at a major wintering site. Body mass and condition increased from the 195… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

1
27
0

Year Published

2011
2011
2024
2024

Publication Types

Select...
10

Relationship

4
6

Authors

Journals

citations
Cited by 38 publications
(28 citation statements)
references
References 29 publications
1
27
0
Order By: Relevance
“…These exceptions cannot be successfully explained by either Bergmann's or James's rule (James 1970) for endotherms or the "temperature-size rule" for ectotherms (Ray 1960, Atkinson 1994, Atkinson and Sibly 1997. Notably, these exceptions are almost exclusively found in temperate seasonal environments, such as common lizard Lacerta vivipara in European mountains (Chamaille-Jammes et al 2006), tadpoles of Rana kukunoris in Tibetan plateau (Zhao et al 2014), marten Martes americana in Alaska (Yom-Tov et al 2008), eurasian otter Lutra lutra in Norway (Yom-Tov et al 2006); mallard Anas platyrhynchos and teal Anas crecca in France (Guillemain et al 2010), weddell seals Leptonychotes weddellii in Antarctic regions (Proffitt et al 2007). Consistently, these exceptions are mostly accounted for by warming-induced increases in food quantity and quality (Yom-Tov et al 2008) and growth efficiency (Walters and Hassall 2006), as a result of temperature increase improving the seasonal physical environments (Moreno-Rueda andRivas 2007, Gardner et al 2011).…”
mentioning
confidence: 99%
“…These exceptions cannot be successfully explained by either Bergmann's or James's rule (James 1970) for endotherms or the "temperature-size rule" for ectotherms (Ray 1960, Atkinson 1994, Atkinson and Sibly 1997. Notably, these exceptions are almost exclusively found in temperate seasonal environments, such as common lizard Lacerta vivipara in European mountains (Chamaille-Jammes et al 2006), tadpoles of Rana kukunoris in Tibetan plateau (Zhao et al 2014), marten Martes americana in Alaska (Yom-Tov et al 2008), eurasian otter Lutra lutra in Norway (Yom-Tov et al 2006); mallard Anas platyrhynchos and teal Anas crecca in France (Guillemain et al 2010), weddell seals Leptonychotes weddellii in Antarctic regions (Proffitt et al 2007). Consistently, these exceptions are mostly accounted for by warming-induced increases in food quantity and quality (Yom-Tov et al 2008) and growth efficiency (Walters and Hassall 2006), as a result of temperature increase improving the seasonal physical environments (Moreno-Rueda andRivas 2007, Gardner et al 2011).…”
mentioning
confidence: 99%
“…In a recent issue of AMBIO, Guillemain et al (2010) (hereafter GUN) showed that wintering Mallard (Anas platyrhynchos) and Teal (Anas crecca) in France increased in body mass from 1952-1969 to 2002-2008, but that body size did not change. These results were used to address four hypotheses: that the increase in body mass was due to (1) more benign winter climate in France, (2) a shift in the distribution of subpopulations, (3) habitat management and (4) supplemental stocking of hand-reared ducks.…”
mentioning
confidence: 99%
“…Adult mallards are characterized by considerable sexual dimorphism, which is manifested, among other ways, in size differences between the sexes, including differences in body weight, carcass weight, and the weights of carcass parts (Szász et al 2006;Guillemain et al 2010). No differences in the above traits were found between young (up to 42 d of age) males and females (Fig.…”
Section: Discussionmentioning
confidence: 98%