species extinction
... a mile wide and up to 300 miles long, were so dense that they darkened the sky for hours and days as the flock passed overhead. Total ...
... a mile wide and up to 300 miles long, were so dense that they darkened the sky for hours and days as the flock passed overhead. Total ...
3.2.1 Fragmentation metrics - Food and Agriculture Organization of
... 2007). A review (Fazey el. 2005) of publications of conservation biologists found that habitat fragmentation was the largest single area of study in conservation biology. Large animals and top carnivores, which are well known to require large areas of habitat, are especially vulnerable to the reduct ...
... 2007). A review (Fazey el. 2005) of publications of conservation biologists found that habitat fragmentation was the largest single area of study in conservation biology. Large animals and top carnivores, which are well known to require large areas of habitat, are especially vulnerable to the reduct ...
2012-2013 Annual Report - Jasper Ridge Biological Preserve
... with the broader world, including climate change, species moving back and forth across boundaries, invasive species, and the risk of fire. The conceptual model of a dynamic system in context also ...
... with the broader world, including climate change, species moving back and forth across boundaries, invasive species, and the risk of fire. The conceptual model of a dynamic system in context also ...
Ecology and management of oak woodlands and savannahs
... Dry, low-quality sites are better suited for restoration; historically, they burned more frequently and likely contain many desirable plants within the seedbed. More mesic, productive sites (floodplains, riparian areas, coves and northern slopes) would have burned less frequently and are best left t ...
... Dry, low-quality sites are better suited for restoration; historically, they burned more frequently and likely contain many desirable plants within the seedbed. More mesic, productive sites (floodplains, riparian areas, coves and northern slopes) would have burned less frequently and are best left t ...
Deadwood - Buglife
... and mammals. Despite this essential role, deadwood has been removed from woodland ecosystems by humans for thousands of years. Deadwood is often viewed simplistically as standing snags or fallen dead tree material and logs. In fact, there is a huge range of deadwood micro-habitats that may be found ...
... and mammals. Despite this essential role, deadwood has been removed from woodland ecosystems by humans for thousands of years. Deadwood is often viewed simplistically as standing snags or fallen dead tree material and logs. In fact, there is a huge range of deadwood micro-habitats that may be found ...
big questions about small primates
... and Hollingsworth, 2000). Rather, a synthetic view of recent molecular phylogenetic studies indicates that it is the entire cheirogaleid clade that is the sister to the genus Lepilemur (e.g., see Masters et al., 2013; Yoder, 2013 for recent reviews). Looking more closely at the cheirogaleid clade, t ...
... and Hollingsworth, 2000). Rather, a synthetic view of recent molecular phylogenetic studies indicates that it is the entire cheirogaleid clade that is the sister to the genus Lepilemur (e.g., see Masters et al., 2013; Yoder, 2013 for recent reviews). Looking more closely at the cheirogaleid clade, t ...
Great Basin Spadefoot (Spea intermontana)
... Spadefoots respond rapidly to changing environmental conditions and breed explosively when temperatures are suitable and breeding sites are full of water. In British Columbia, adults begin to emerge from hibernation in early to mid-April and move quickly to breeding ponds where males begin to call. ...
... Spadefoots respond rapidly to changing environmental conditions and breed explosively when temperatures are suitable and breeding sites are full of water. In British Columbia, adults begin to emerge from hibernation in early to mid-April and move quickly to breeding ponds where males begin to call. ...
read more! - Scripps Institution of Oceanography
... To describe the distribution of the observed bites by herbivores on different benthic taxa, the bites per minute on each benthic group for each herbivore species were averaged, and data were transformed using log (x + 1) to account for the large number of zeros in the dataset (Anderson et al. 2008). ...
... To describe the distribution of the observed bites by herbivores on different benthic taxa, the bites per minute on each benthic group for each herbivore species were averaged, and data were transformed using log (x + 1) to account for the large number of zeros in the dataset (Anderson et al. 2008). ...
Pyrodiversity vs Biodiversity
... will accommodate the needs of more species, and therefore the diversity of fire ages within a landscape can be considered a surrogate for the amount of biodiversity. This logic has been captured in the phrase “pyrodiversity begets biodiversity”. Patch-mosaic burning has become common in fire managemen ...
... will accommodate the needs of more species, and therefore the diversity of fire ages within a landscape can be considered a surrogate for the amount of biodiversity. This logic has been captured in the phrase “pyrodiversity begets biodiversity”. Patch-mosaic burning has become common in fire managemen ...
Here - Tylianakis Lab Group
... moved them to the laboratory for identification and reared them until either they developed into adults or parasitoids emerged. Each herbivore host was reared individually in a separate container under controlled conditions (168C, relative humidity of 60%, and a light rhythm of 16L:8D) and fed with l ...
... moved them to the laboratory for identification and reared them until either they developed into adults or parasitoids emerged. Each herbivore host was reared individually in a separate container under controlled conditions (168C, relative humidity of 60%, and a light rhythm of 16L:8D) and fed with l ...
Peer-reviewed Article PDF
... the first month which is concordant with similar studies performed on Pomacea genus [7,8], Marisa cornuarietis [9], Babylonia areolata [10] and various land snail species [11-13]. In the present study, individuals stocked at 5 snails/L had significantly faster growth rates than those stocked at the ...
... the first month which is concordant with similar studies performed on Pomacea genus [7,8], Marisa cornuarietis [9], Babylonia areolata [10] and various land snail species [11-13]. In the present study, individuals stocked at 5 snails/L had significantly faster growth rates than those stocked at the ...
landbird conservation plan - Charles Darwin Foundation
... O'Connor et al., 2010a,b,c; Koop et al., 2011) in addition to facing predation from introduced mammals (rats Rattus rattus & R. norvegicus, and cats Felis catus), and having suffered from habitat loss due to anthropogenic land use change. Only one percent of the original Scalesia forest currently re ...
... O'Connor et al., 2010a,b,c; Koop et al., 2011) in addition to facing predation from introduced mammals (rats Rattus rattus & R. norvegicus, and cats Felis catus), and having suffered from habitat loss due to anthropogenic land use change. Only one percent of the original Scalesia forest currently re ...
SIZE RATIOS
... 1975). For example, Carothers (1982) found that resource partitioning in a guild of Hawaiian honeycreepers depended on the morphology of the tongue rather than the size or shape of the bill. Moreover, character displacement may occur among distantly related taxa that do not have comparable body part ...
... 1975). For example, Carothers (1982) found that resource partitioning in a guild of Hawaiian honeycreepers depended on the morphology of the tongue rather than the size or shape of the bill. Moreover, character displacement may occur among distantly related taxa that do not have comparable body part ...
Invasive lionfish preying on critically endangered reef fish
... socialis, family Labridae, Fig. 1a) fits the profile of lionfish preferred prey and is one of the only five coral reef fish species listed at the highest risk of extinction in the Red List of the International Union for Conservation of Nature (Rocha et al. 2010). The 2008 evaluation identified habit ...
... socialis, family Labridae, Fig. 1a) fits the profile of lionfish preferred prey and is one of the only five coral reef fish species listed at the highest risk of extinction in the Red List of the International Union for Conservation of Nature (Rocha et al. 2010). The 2008 evaluation identified habit ...
Diversification in a fluctuating island setting
... Diversification in a fluctuating island setting: rapid radiation of Ohomopterus ground beetles in the Japanese Islands Teiji Sota* and Nobuaki Nagata Department of Zoology, Graduate School of Science, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan The Japanese Islands ha ...
... Diversification in a fluctuating island setting: rapid radiation of Ohomopterus ground beetles in the Japanese Islands Teiji Sota* and Nobuaki Nagata Department of Zoology, Graduate School of Science, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan The Japanese Islands ha ...
March - Chicago Herpetological Society
... Erie, Pennsylvania, area particularly during the fall of the year and continuing into winter by people fishing for yellow perch or burbot. These large amphibians are often caught around the channel that connects Presque Isle Bay to Lake Erie. Unfortunately, fishermen often do not put them back into ...
... Erie, Pennsylvania, area particularly during the fall of the year and continuing into winter by people fishing for yellow perch or burbot. These large amphibians are often caught around the channel that connects Presque Isle Bay to Lake Erie. Unfortunately, fishermen often do not put them back into ...
A View of Life
... Secondary Succession begins in areas where soil is present. Pioneer Species Mader: Biology 8th Ed. ...
... Secondary Succession begins in areas where soil is present. Pioneer Species Mader: Biology 8th Ed. ...
Wellborn et al. (1996)
... related to permanence (Table 1). With few exceptions, however, sorting occurs at the family level and below; most higher taxa (phyla, classes, orders) are not restricted to particular regions of the gradient. Among the groups in which these patterns have been quantified, species are often restricted ...
... related to permanence (Table 1). With few exceptions, however, sorting occurs at the family level and below; most higher taxa (phyla, classes, orders) are not restricted to particular regions of the gradient. Among the groups in which these patterns have been quantified, species are often restricted ...
Assessing biodiversity in arable farmland by means of indicators: an
... 16S rDNA sequences were commonly used to reveal patterns considered as ‘‘a picture’’ of the microbial communities. Nevertheless, the evaluation of the microbial specific diversity is poorly informative in relation to soil functioning (Maron et al., 2011). Therefore molecular techniques targeting key ...
... 16S rDNA sequences were commonly used to reveal patterns considered as ‘‘a picture’’ of the microbial communities. Nevertheless, the evaluation of the microbial specific diversity is poorly informative in relation to soil functioning (Maron et al., 2011). Therefore molecular techniques targeting key ...
Plants & Ecology Range margins and refugia Johan Dahlberg
... more common than limiting by mortality of adults due to climate (Gaston 2003). For example, minimum temperature during the growing season is an important determinant of seed mortality of forest trees in Sweden (Blennow & Lindkvist 2000). Plant species that at their range limits fails to reproduce se ...
... more common than limiting by mortality of adults due to climate (Gaston 2003). For example, minimum temperature during the growing season is an important determinant of seed mortality of forest trees in Sweden (Blennow & Lindkvist 2000). Plant species that at their range limits fails to reproduce se ...
Overview of a passive tracking index for monitoring wild canids and
... Another example of the care needed in interpreting indices also occurred in 1998 where a large decrease in index values was seen for deer post-trapping on one ranch, while remaining constant on the other ranch (no deer were removed from either ranch). This result probably pointed to differences in l ...
... Another example of the care needed in interpreting indices also occurred in 1998 where a large decrease in index values was seen for deer post-trapping on one ranch, while remaining constant on the other ranch (no deer were removed from either ranch). This result probably pointed to differences in l ...
6 Key Ecological Functions of wildlife Species
... databases have focused on how the presence of terrestrial vertebrates is influenced by environmental conditions, and have mostly ignored ecological interactions. WHR approaches have assumed that wildlife (W) basically is a function of habitat (H), or W = f(H). Further, most evaluations of biodiversi ...
... databases have focused on how the presence of terrestrial vertebrates is influenced by environmental conditions, and have mostly ignored ecological interactions. WHR approaches have assumed that wildlife (W) basically is a function of habitat (H), or W = f(H). Further, most evaluations of biodiversi ...
Invasions and Extinctions Reshape Coastal
... a number of studies have recently considered the consequences of diversity loss for ecosystem functioning [see reviews by 3, 4], few of these consider the effects of realistic diversity change scenarios [but see 5, 6]. At the regional scale, the gain of species most often equals or outpaces the numb ...
... a number of studies have recently considered the consequences of diversity loss for ecosystem functioning [see reviews by 3, 4], few of these consider the effects of realistic diversity change scenarios [but see 5, 6]. At the regional scale, the gain of species most often equals or outpaces the numb ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.