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Tracing the origins of rescued chimpanzees reveals widespread chimpanzee hunting in Cameroon
Springer Science and Business Media LLC - Tập 10 - Trang 1-15 - 2010
Lora Ghobrial, Felix Lankester, John A Kiyang, Akih E Akih, Simone de Vries, Roger Fotso, Elizabeth L Gadsby, Peter D Jenkins, Mary K Gonder
While wild chimpanzees are experiencing drastic population declines, their numbers at African rescue and rehabilitation projects are growing rapidly. Chimpanzees follow complex routes to these refuges; and their geographic origins are often unclear. Identifying areas where hunting occurs can help law enforcement authorities focus scarce resources for wildlife protection planning. Efficiently focus...... hiện toàn bộ
Phenols content and 2-D electrophoresis protein pattern: a promising tool to monitor Posidonia meadows health state
Springer Science and Business Media LLC - - 2007
Luciana Migliore, Alice Rotini, Davide Randazzo, Nadia Ninfa Albanese, Agata Giallongo
Scavenging on a pulsed resource: quality matters for corvids but density for mammals
Springer Science and Business Media LLC - - 2017
Gjermund Gomo, Jenny Mattisson, Bjørn Hagen, Pål Fossland Moa, Tomas Willebrand
Modeling future wildlife habitat suitability: serious climate change impacts on the potential distribution of the Rock Ptarmigan Lagopus muta japonica in Japan’s northern Alps
Springer Science and Business Media LLC - Tập 19 - Trang 1-14 - 2019
Masanobu Hotta, Ikutaro Tsuyama, Katsuhiro Nakao, Masaaki Ozeki, Motoki Higa, Yuji Kominami, Takashi Hamada, Tetsuya Matsui, Masatsugu Yasuda, Nobuyuki Tanaka
The Rock Ptarmigan Lagopus muta japonica lives in the alpine zones of central Japan, which is the southern limit of the global distribution for this species. This species is highly dependent on alpine habitats, which are considered vulnerable to rapid climate change. This study aimed to assess the impact of climate change on potential L. muta japonica habitat based on predicted changes to alpine v...... hiện toàn bộ
Cost of resistance to trematodes in freshwater snail populations with low clonal diversity
Springer Science and Business Media LLC - Tập 17 - Trang 1-8 - 2017
Yael Dagan, Evsey Kosman, Frida Ben-Ami
The persistence of high genetic variability in natural populations garners considerable interest among ecologists and evolutionary biologists. One proposed hypothesis for the maintenance of high levels of genetic diversity relies on frequency-dependent selection imposed by parasites on host populations (Red Queen hypothesis). A complementary hypothesis suggests that a trade-off between fitness cos...... hiện toàn bộ
The maintenance of stable yield and high genetic diversity in the agricultural heritage torreya tree system
Springer Science and Business Media LLC - Tập 19 - Trang 1-12 - 2019
Jian Zhang, Liangliang Hu, Liang Guo, Weizheng Ren, Lufeng Zhao, Ningjing Wang, Entao Zhang, Jianjun Tang, Xin Chen
Understanding how traditional agriculture systems have been maintained would help design sustainable agriculture. In this study, we examined how farmers have used two types of local trees (Torreya grandis) for stable yield and maintaining genetic diversity in the “globally important agricultural heritage torreya tree system”. The two type of torreya trees are grafted torreya (GT) tree and non-graf...... hiện toàn bộ
Effects of herbivory on the reproductive effort of 4 prairie perennials
Springer Science and Business Media LLC - Tập 2 - Trang 1-8 - 2002
Erica Spotswood, Kate L Bradley, Johannes MH Knops
Herbivory can affect every aspect of a plant's life. Damaged individuals may show decreased survivorship and reproductive output. Additionally, specific plant species (legumes) and tissues (flowers) are often selectively targeted by herbivores, like deer. These types of herbivory influence a plant's growth and abundance. The objective of this study was to identify the effects of leaf and meristem ...... hiện toàn bộ
Quantifying suitable late summer brood habitats for willow ptarmigan in Norway
Springer Science and Business Media LLC - Tập 18 - Trang 1-13 - 2018
Mikkel Andreas Jørnsøn Kvasnes, Hans Christian Pedersen, Erlend Birkeland Nilsen
Habitat models provide information about which habitat management should target to avoid species extinctions or range contractions. The willow ptarmigan inhabits alpine- and arctic tundra habitats in the northern hemisphere and is listed as near threatened (NT) in the Norwegian red list due to declining population size. Habitat alteration is one of several factors affecting willow ptarmigan popula...... hiện toàn bộ
Inferring ecological explanations for biogeographic boundaries of parapatric Asian mountain frogs
Springer Science and Business Media LLC - - 2018
Junhua Hu, Jianping Jiang
Abstract Background Identifying and understanding the mechanisms that shape barriers to dispersal and resulting biogeographic boundaries has been a longstanding, yet challenging, goal in ecology, evolution and biogeography. Characterized by stable, adjacent ranges, without any intervening physical b...... hiện toàn bộ
DNA barcoding of Northern Nearctic Muscidae (Diptera) reveals high correspondence between morphological and molecular species limits
Springer Science and Business Media LLC - Tập 12 - Trang 1-15 - 2012
Anaïs K Renaud, Jade Savage, Sarah J Adamowicz
Various methods have been proposed to assign unknown specimens to known species using their DNA barcodes, while others have focused on using genetic divergence thresholds to estimate “species” diversity for a taxon, without a well-developed taxonomy and/or an extensive reference library of DNA barcodes. The major goals of the present work were to: a) conduct the largest species-level barcoding stu...... hiện toàn bộ
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