Questions related to Conservation Ecology
I'm studying MSc Conservation Ecology and am interested primarily in carrion as an ephemeral resource and habitat fragmentation. My undergrad dissertation was a pitfall trap study looking at woodland patch size on Silphid abundance and species richness. These beetles obviously provide vital ecosystem services therefore I went for a non-lethal methodology. I understand that my data will be severely limited, but I just don't agree with lethal methods for these organisms. I'm interested in whether urban areas (matrix) is in any way hospitable to these beetles, but most of what I can conjure up revolves around trapping, e.g. pitfall traps in a gradient or carcass placement in buildings (experimental)--still requiring a kill and collect method. Put simply and generally, is there a way I could study Silphids (any beetles, say) without killing them? I'm aware you can employ camera traps for visitation and whatnot, but I think that only really works with pollinators. It's a shame as I really want to answer this research question of permeability in an urban setting, but I simply don't know how to acquire insect data any other way.
This species has historically been known as Viola rafinesquii and considered an exotic species in North America, but recently changed names and status to a native in some literature. As at TNCer, my ability to track down the rational for this change has been elusive (we're cheap as have access to low end literature resources!). Can anyone help me track down the basis of that change?
As a geographer/geomorphologist with interest in nature (karst) protection, I'm dealing with one Natura 2000 site in Croatia under heavy pollution pressure. It is a sinking river in contact karst area exposed to pollution from nearby dump site and sewerage - consequences: pollution of river (destruction of water fauna), its ponor and underground stream possibly up to the distant karst springs. One of the basic problems is in bad delineation of borders not including larger catchment area (small city, suburban area with important percentage of arable land - a lot of anthropogenic pressure) but only small part of river bed. So it is completely inefficient because it does not prevent or reduce the pressure on the protected water habitat of interest. Second problem is that most of Natura 2000 sites in Croatia are poorly managed or not managed at all (no management plans), with badly determined borders/areas drawn without enough scientific fundamentals so their efficiency is questionable in many cases.
My question rised from topic asked 5 years ago: https://www.researchgate.net/post/How_well_is_Natura_2000_protecting_European_biodiversity2
I'm searching for any updates on this topic - newer articles with examples. I'm interested in various habitats, not only karst and water, but all good examples of bad decisions in delineating Natura sites and repercussions to habitats, flora & fauna.
Maybe we can start some collaboration in this topic...
Taxonomic bias in research papers is well established, but the underlying drivers are poorly understood. As professional scientists, we are under enormous pressure to publish, and the type of sophisticated research that appeals to the top journals often requires a well researched study system. This potentially limits research on understudied species. Moreover, limited resources mean that scientists study what is practically convenient rather than the species in most need of research. We are also motivated by personal biases, with many of us drawn to work on charismatic/iconic species.
We are currently constructing a conceptual model to better understand the drivers of taxonomic bias in conservation research, and I would love to hear about people's experiences of why they ended up working on a particular species.
This would be to quantify the value of some Canadian national parks for the communities living around them. A case study would be fine.
Based on continuous habitat suitability values (from 0 to 1) for a butterfly species, I'm comparing different conservation strategies, that would output different possible networks of protected areas.
Based on the assumption that suitable habitat will be destroyed in unprotected areas because of high anthropic pressures, I would like to calculate a connectivity index for remaining habitat patches, based on different conservation scenarios. This connectivity index should take into account the distances among remaining habitat patches, but also their habitat suitability values.
Does such an index exist? If so, how to compute it?
a research projects that i am doing for my college so i need some more documents to strengthen my approaches.
Unfortunately, this species is extinction due to the climate change. Please, kindly follow the link:
Extensive searches for the Bramble Cay melomys, a small rat-like animal, have failed to find a single specimen from its only known habitat on a sandy island in far northern Australia (AFP Photo/Sarah Lai)
hi all, i would like to ask about the main principal different on conducting research in coniferous broadleaved forest and tropical forest? as we know that species regeneration in tropic is quite faster than subtropic, every life form, life stage are considered to be measured.
if i do research in dynamic plot of coniferous broadleaved forest, what is the important thing which really should be considered for research on diversity? I am tropical man, please kindly explain it ~ thank you
What are the most appropriate baselines for determining
the magnitude and direction of ecological
I have collected species data using sample plot of 400m2 (20 x 20 m). I am intended to analyse species distribution patterns as a function of topographic variables (TWI, curvature, slope, convergence index). I have a 2m DEM of the study area. Do I need to re-sample DEM to 20 or 30 before deriving the topographic variables or I shall take mean values calculated at 2m.
I am currently trying to find method that is suitable to be used to measure the nesting of a black naped monarch bird. It would be great if anyone can recommend to me suitable method for it. Thank you in advance.
I am generating data on the initial dispersal (compass) bearings taken by just-emerged hatchling turtles. Typically, each nest (and the total dataset for the year) yields several different bearings that would benefit by descriptors such as whether or not these vectors were randomly distributed and what the mean vector was. I know there are software packages out there that can be used for this, but I am without institutional funds and would like to keep things simple, if possible. I would like opinions as to whether less rigorous, but still accurate descriptions would pass peer review: For example, "hatchlings generally dispersed in a northeasterly direction (88.3% of dispersals within this quadrant, n = 64), a course which led directly to the nearest waterway."
Considering the threat of extinction from interbreeding, inbreeding, cross breeding as well as the introduction of genetically and productively superior animals in line with the low input production systems in the developing world.
Dear Researchers and Academics;
I work on the 100% renewable power Global Grid subjects. I am interested in the locations of very large and large renewable power plants.
During my research, I define and describe the importance of the soil conservation regions, water conservation regions and forest conservations regions. These regions have to be untouchable (no settlement, no concrete, no metal, etc.; soil conservation only for agriculture, water conservation only for clean fresh water, forest conservation only for forests). These regions should be large and very large sites.
I thought and assumed that the international governing bodies (e.g. the United Nations) had already worked on these topics, defined, decided, and published a Global Soil Conservation Map (worldwide protected sites), a Global Water Conservation Map (protected lakes, rivers, underground water, etc.) and a Global Forest Conservation Map (protected forests) for large protected areas agreed upon and published by international consensus (like by the United Nations).
All authorities (regional, national, international) have to obey the borders of these defined and published large protected areas.
I could not find any official map (a map for soil, a map for water, a map for forest) yet.
Can you please send me a Global Soil Conservation Map, a Global Water Conservation Map and a Global Forest Conservation Map, if there is one for Global Soil Conservation, one for Global Water Conservation and one for Global Forest Conservation.
If there are GIS files for these maps in some formats such as for Google Earth, ESRI ArcGIS, they will be very useful for my research.
I would like to thank all of you who contribute to this question in advance.
Burak Omer Saracoglu
What passive (preferred) or active control techniques are there to control a large invasive alien arboreal day gecko (Phelsuma grandis – reaching 30 cm or 12 inches long) in a semi-natural habitat, without negatively impacting smaller endemic arboreal Phelsuma geckos (half its size)? Are there any size selective traps or models someone may have tested and found useful in this kind of situation?
I have been using the IUCN website (http://www.iucnredlist.org/) recently and they claim to be the largest conservation organisation in the world. Does anyone have any idea as to their effectiveness?
Aside, does anyone have any ideas as to the appropriateness of the Red List Categories (EX, CR, VU, etc.) and their respective criteria? If anyone has any ideas for any additional criteria or any alterations they feel appropriate, I would be very interested to know.
Thank you for the help in advance!
I need to create a simple map. However, I have been unable to find something simple, and hopefully free (it should have layers such as roads and protected areas). I have tried some applications such as map box and google map creator, but they are full of unnecessary layers. If you could suggest a mapping utility to create simple maps it will be greatly appreciated.
I am trying to compare the species composition between two of my sites, and have read up some similarity/dissimilarity indices. Because my data also contained abundance information, I thought of using the Bray-Curtis measure. I tried reading more about it and have found some sites interchanging 'Bray-Curtis Similarity Index', 'Sorensen Distance' and 'Bray-Curtis Distance' (suggesting that they are the same thing), whereas others have stated that these are different measures. Could anyone explain the difference or suggest a good reading?
Shuklaphanta Wildlife Reserve (SWR) (305 sqkm) of Western Nepal, as a part of Terai Arc Landscape, the global priority tiger conservation landscape, has a significant role in tiger conservation. But the reserve also gets immense pressure of cattle grazing (nearly 20,000 livestock enter SWR daily) from nearby village which is affecting the potential of reserve as tiger habitat. Most of the cattle are unproductive. In many cases local also don't want to keep these unproductive cattle but nobody would buy it. In Nepal cow is regarded as holy animal and killing is not allowed. With no option, they free their animals which ultimately goes into Wildlife Reserve. The cattle population is increasing as unwanted breeding continues during free grazing. In this scenario how could we reduce cattle grazing pressure in SWR? Is there any successful examples from others protected areas?
The plant being studied is a small, annual, endangered lupine (wildflower; forb). Although seeds are dehissed from pods they do not travel very far. Would using just one slope with multiple replicates of a treatment on that one slope be considered psuedoreplication if they are distant enough and they have different microhabitat conditions?
Migration, poaching and overuse for direct or indirect consumption threaten biodiversity and ecosystems that the scientific community must preserve. I decided to introduce my undergraduate students to these areas of research in their final year project, to foster future ecologists but for 7years, I have been facing a fierce opposition from colleagues who brazenly discourage my students in their endeavours and external examiners who downgrade their reports on the basis that there was no wet lab component in their conservation investigations.
I am exasperated and now forced to quit such an exciting area of research in a part of the world where ECOLOGY is gradually relegated to the background.
In May 1974, only 4 individuals including a single breeding female were left in the wild.
With an extensive breeding programme, the species was saved from the brink of extinction.
But what concern me the most is their genetic pool; having a single breeding female will this not increase the probability of expression of recessive alleles leading to complication or even death in the future. Resulting in a decrease in kestrel population.
I want to know if my thinking is right and your point of view on this matter.
The government of Mauritius has decided to have a culling of our endemic fruit bat Pteropus niger based on the ground that the population is exploding and that they are acting as a pest, devastating fruit trees. This decision goes against all scientific studies carried out in Mauritius. The culling has already started and they have killed thousands of bats so far. Despite online petitions sent to the government, the decision was not re-considered.
Does anyone know a strategy that might help protect this important species?
RAN, INEGI or other data representing distribution of private property parcels and federal property (not protected areas) in SE Mexico.
I was reading the paper "Integrated biomarker response: a useful tool for ecological risk assessement", by Beliaeff et al 2002, and I was trying out the computations as in the example (Computation of IBR at station W3 (Warnemunde Estuary) in March 1995, p1318) and there's one thing I couldn't quite follow.
When the authors write about the minimum value (Min) for all stations and/or surveys for each biomarker, I would think the minimum value (that later on we add to Z to calculate the score S) would be obtained directly from the original dataset (not shown in the article), but what I don't understand is how the Min values are below zero for biomarker levels. I mean, measured enzyme activities are always above zero.
Therefore my questions are: i) how is it we obtain the Min value? or iii) are the minimum values relative values, such as a fold-change in enzyme activity?
In addition, when we have to place a + or - sign in Z (showing upregulation or downregulation in biomarker levels), does that correspond to what is expected in theory or to what was actually observed in the data?
Thanks a lot.
How can we quantify ecosystems health? What are the criteria to be consider for us to say that a certain ecosystem is healthy?
I am trying to determine the season of occupation of archaeological sites in the Port Clarence area of the Seward Peninsula, AK. The majority of bones are from eiders and ringed seals, suggesting that they were captured during the early breakup in ice leads, but I have not been able to find modern eider migration/nesting data from this specific portion of the Seward Peninsula. I would like to determine the earliest month different eider species are found near the coastline, if they nest in the immediate area, and when they leave the nest and return to the open ocean.
I'm plan a new study that will focus on Eliomys melanurus community. I'm aware for two sample methods. the first one is to use Sherman traps and the second is to use IR camera. Do you have other ideas how to sampling population size of this extremely rare species?
I'm talking about the whole range from basic understanding of conservation status and occurrence to mechanisms by which drivers of decline operate.
The question: Does anybody know scientific papers, measures or medicaments against the avian influenza H5N1 as reason for the death during March 2015 of more than 140 Dalmatian pelicans in Srebarna nature reserve (Bulgaria) and Danube Delta (Romania)? Additional explanation: On 25 March 2015 21 Dalmatian pelicans from Srebarna nature reserve were found dead in the breeding colony. An avian influenza H5N1 was proved for two of them. Several days later over 100 Dalmatian pelicans from Danube Delta in Romania were found dead. Nobody knows what to do! It is not known if the arriving Great White Pelicans will be affected also. The problem is of great importance and urgency.
I have a large set of habitat polygons (over 10,000) between which I wish to calculate least-cost distances and cumulative costs for a subset of polygon pairs (nearest edge to nearest edge), using a series of pre-existing resistance/cost rasters. The size of my datasets mean this is something I'd like to script in R or Python, but so far surprisingly the best option I've found (the gdistance R package) only allows calculation of least-cost paths between points, not polygons.
Is anyone aware of an R package or Python module which allows for least-cost calculations between polygons, or an alternative approach I could use to achieve similar results?
I'm studying the habitat preferences of European woodpecker species in riparian forests with high densities of the above mentioned two invasive tree species. I'm interested in every aspects of community ecology of these species.
All the best,
I came across figures of number of elephants in 2007 and 2012. The Indian government's official figures are 669 (2007) to 21908 (2012).
Is it possible? what kind of factors might be affecting?? and effect of such sudden change on environment?
Focus on: criteria for selection, establishment, conservation, management and monitoring
Indeed, I would like to conduct a study on the analysis of the reliability of ape populations (Bonobo) and the probability of extinction over a defined time interval. This study is in order to improve protection strategies for this iconic and endangered species in the Democratic Republic of Congo. This is a demographic study with statistics, but a good read enable me to clearly define my question. Thank you for your recommendations
Replantation succees is investigated through the measurement (height,diameter) of mangrove seedling/sapling/adult and the analysis of mangrove sediment as well as the environmental factors.
I recently work on the diet analyses for woodland migrants. I found couple of spring-like and brown or pinkish structures from bird fecal samples. It feels like rock or iron when I try to break it. Does anybody know what they are? Thanks in advance!
I wonder how a carrying capacity in a vehicle overcrowded protected area could be developed. It is for a dry mediterranean peninsula under high seasonal touristic pressure. As it is a protected area (Natura 2000 site), how to develop a CC that will include not only parking places but the ecological impact?
What is the sex ratio in carabids?
As you all know pitfall trapping gives a bias estimate of abundance due to various reasons. Therefore higher abundance of males or females in the trap does not have to relate to their abundance. Do you know sex ratio of ground beetle populations obtained with more reliable methods than Barbet traps? Do you have some unpublished data on this topic?
With kind regards
Is anyone currently examining stream grazer foraging strategies in terms of how they partition periphytic resources?
In particular, are there any trait-based models (or ideas) out there predicting how stream grazers will forage across larger scales (e.g. meters)?
There is the classic Steinman model of small-scale (micrometer) utilization based on periphytic structure, but I'm trying to think "big" here.
I welcome people's thoughts & ideas.
I am planning to prepare fact sheets and quizzes for secondary school and pre-university students in order to promote awareness of environment education in regard to climate and conservation.
I'm actually doing a project on the distribution and diet of the African Common toad and for this I'm going to measure the population density of arthropods as possible food preferences using pit fall trap with antifreeze.
Laurans et al. (2013) have found that there is little documentation on the actual use of monetary valuation of ecosystem services in practice (policy, planning).
Do you know of documented cases where valuation made a difference, in the sense that it convinced policy makers and planners to conserve an area?
I'm planning to start a new biodiversity conservation project based on citizen science in Sri Lanka. I don't seem to find any local bodies providing small grants for research like this. I would much appreciate if anyone could suggest a potential opportunity to me.
In ecology and conservation biology identifying keystone species and quantify their population is very important. Even, the study of their role in the habitats to maintain overall niche interaction is very imperative for species level conservation program. is their any standard tools for quantifying their population and role within a forest ecosystem?
Does anyone have experience with (standard) frameworks for evaluation of effectiveness of nature conservation projects versus multiple (ecologic, social) goals?
It is always hard to find habitability percentage for the land birds ( Black winged stilt, Oriental Pratincole, etc) as their babies soon after hatching leave the nests. How to find this in such an area where we cannot put cameras due to human interference? And specially if their nests are on small islands, and in large numbers, and even walking on that island can cause considerable damage to birds and can attract predators.
According to various papers and nest monitoring guidelines we should not visit nests too often and should wait for minimum 3 days to visit that place again. So in presence of all these problems how to get an accurate hatchability percentage for those birds?
I'm especially interested on the effects of forest fragmentation and patch size on forest dwelling species such as Platystictidae species.
If an area is invaded by alien plant species, for the conservation purpose of a native plant species within that area. Would it be wise to remove all the alien species? Is there any possible interaction that makes the native plant species adapt to the alien plant species?
We are evaluating the effect of tropical dry forest successional stages on water fluxes including water quality. Most of the literature comes from temperate forest and there is a lack of comprehensive information about tropical dry forest.
I am working on some plant species from high altitude Himalayan region. I have done soil moisture content test, organic carbon, nitrogen test for those plants. I think there is a relation between organic carbon, nitrogen and different forest type. How to measure the aspect value?
Thousands of tourists go to protected areas. Many of them move from one area to another and use the same backpacks, raincoats, boots, pants. .. even without cleaning them enough. What mechanism or substance can be used to clean the visitors without damaging the elements that they carry... but reducing human-mediated risk dispersal?
Since in a multi use MPA, zoning of activities is done, socio- economic factors are taken into consideration, how would this be approached on a terrestrial area.
Ecosystem services approach is an applied branch of Ecology. The field to assess and investigate the benefits people obtains from ecosystems/natural resources, the trends under direct human induced threats, global change and natural hazards. To know the kinds and status of these services, regulation limitations/threats and effective mitigation measures for conservation has become prime important. I need to know approaches, research methods, and articles about "Ecosystem services of National Parks under current climate change scenario".
The Dutch part of the North Sea is predominantly sandy or muddy and its benthic life consists of animal species adapted to these sediments. Life on and around shipwrecks shows a strong contrast because it is made up of species preferring hard substratum. Consequently, wreck fauna adds significantly to the total biodiversity. Moreover, it contains several higher taxa such as sponges, hydroids, sea anemones, bryozoans and nudibranchs, which are hardly represented on sandy and muddy substrates. Also the fish community seems to be enriched as we encounter high numbers of fish like Gadoids swimming close to wrecks, a phenomenon well known to the sport-fishing community. Not surprisingly, wrecks have been compared to ‘oases in a desert’.
However, wrecks are considered artificial substrates and as such do not gain much protection in frameworks such as the European Habitat Directive, which often focus on more ‘natural’ communities. We may ask ourselves whether this is correct: next to the added value in terms of biodiversity, the biological communities of wrecks and other hard-substrate objects such as oil rigs resemble communities that have been present in the past such as oyster banks and exposed peat (‘moorlog’). These substrata have almost disappeared during the last century probably due to anthropogenic activities.
What is the ecological relevance of life on and around shipwrecks in your country?
I am currently looking into circuit theory resistance modelling (http://goo.gl/fPOSVw) as an alternative to least-cost path approaches for modelling ecological connectivity throughout a major surface water network in Australia.
The Circuitscape (http://www.circuitscape.org/) software package seems to do everything I would like to do, but ideally I would prefer to conduct my analyses completely within the R environment. The "commuteDistance" function within the "gdistance" R package (http://cran.r-project.org/web/packages/gdistance/) comes close, but seems to only support resistance modelling between points/nodes, rather than two-dimensional patches/polygons as is possible in Circuitscape.
Is anyone aware of an R package which allows for circuit theory resistance distance modelling between patches, or an alternative approach I could use to achieve similar results?
We are trying to make cost-efficient management of Danish Natura-2000 areas, also aiming at making nature less fragmented and thus more viable. We consider combining clusters of small occurrences of rich fens, spring-areas, acid grassland etc. with non-nature in to single management units in order to attain minimum grazing pastures of 30-40 hectares (smaller areas are not profitable by cattle owners). At the same time discard small isolated occurrences of nature as these often put restrains on the cultivation of the surrounding farmland, f. ex. amount of fertilizers allowed. Information on practical experience or guidance to relevant literature will be much appreciated.
Most forests in Poland belong to one public company called 'National Forests'. Because the National Forests manage an area of ca. 30% of the country it has relatively good economic results, but the opinions about how this situation influences the conservation of forests ecosystems are divided. Some ecologists are convinced that is easier to influence the environmental strategy of one public enterprise. On the other hand, the Polish government plans the privatization of National Forests and dividing it property among many private owners. Now in Poland there is a debate about future of National Forests. What is your opinion and could you give some examples about research that support some of the parties to the dispute.
The Queensland government is proposing to introduce new laws to "streamline and simplify the legislation that manages the harvesting and clearing of Queensland’s native plants under the Nature Conservation Act 1992, while improving conservation outcomes."
I am very concerned that if the laws have their intended impact of reducing clearing permits and flora surveys by 97% and saving industry $50 million per year will lead to significantly reduced protection of both plant and animal biodiversity in Queensland in direct contradiction to the government's claim to "improve conservation outcomes."
The whole reform rests on highly flawed risk analysis which takes only confirmed point records of threatened (endangered and vulnerable) flora species since 1990 and adds a small buffer then makes these areas "high risk" all areas containing no data are by default considered "low risk" so native vegetation that is not considered to be an endangered regional ecosystem can be cleared without a permit within two months of downloading the risk map as long as the person clearing the vegetation has no knowledge that threatened flora is present.
So much data is missing from the database that areas in Western Queensland can clearly be seen to have numerous records of threatened flora along roads and no data in adjacent private properties that are likely to also contain threatened flora. Of the state 97% of all private land not containing endangered regional ecosystems is now able to be cleared as long as it is not marked as a white dot on this map: http://www.ehp.qld.gov.au/licences-permits/plants-animals/documents/flora-survey-trigger-map.pdf
We are still discovering on average 50 new flora species each year in Queensland and most surveys turn up new records of threatened flora while other species remain not listed as threatened even though they are known only from the type locality or have not been recorded in the wild for several decades.
Additionally the cumulative impacts flowing from increased native vegetation clearing is likely to directly impact threatened fauna through loss of habitat.
Is this a serious misuse of conservation planning and risk management principles that will increase species extinctions?
More information here: http://www.ehp.qld.gov.au/licences-permits/plants-animals/protected-plants-review.html
I am looking for a free tool to use in ArcGis or a stand alone app that will calculate measures of habitat connectivity in a fragmented landscape. The project aims to use connectivity calculations to inform optimal ecological corridor design.
A number of tools are listed on this webpage though I am not familiar with any of them: http://www.conservationcorridor.org/corridor-toolbox/
Any advice on a nice efficient tool to use would be greatly appreciated.